rnd-20070420-2-src
[rocksndiamonds.git] / src / init.c
index f0f528ce1ca3093e12bdf3ca0538f21d616357f2..148f927d5bcfc697775bd63352b3677a6e05735e 100644 (file)
@@ -1,7 +1,7 @@
 /***********************************************************
 * Rocks'n'Diamonds -- McDuffin Strikes Back!               *
 *----------------------------------------------------------*
-* (c) 1995-2002 Artsoft Entertainment                      *
+* (c) 1995-2006 Artsoft Entertainment                      *
 *               Holger Schemel                             *
 *               Detmolder Strasse 189                      *
 *               33604 Bielefeld                            *
 #include "conf_fnt.c"  /* include auto-generated data structure definitions */
 #include "conf_g2s.c"  /* include auto-generated data structure definitions */
 #include "conf_g2m.c"  /* include auto-generated data structure definitions */
+#include "conf_act.c"  /* include auto-generated data structure definitions */
 
 
 #define CONFIG_TOKEN_FONT_INITIAL              "font.initial"
 
 
-struct FontBitmapInfo font_initial[NUM_INITIAL_FONTS];
+static struct FontBitmapInfo font_initial[NUM_INITIAL_FONTS];
 
-
-static void InitTileClipmasks()
+static int copy_properties[][5] =
 {
-#if 0
-#if defined(TARGET_X11)
-  XGCValues clip_gc_values;
-  unsigned long clip_gc_valuemask;
-
-#if defined(TARGET_X11_NATIVE)
-
-#if 0
-  GC copy_clipmask_gc;
-
-  static struct
   {
-    int start;
-    int count;
-  }
-  tile_needs_clipping[] =
-  {
-    { GFX_SPIELER1_UP, 4 },
-    { GFX_SPIELER1_DOWN, 4 },
-    { GFX_SPIELER1_LEFT, 4 },
-    { GFX_SPIELER1_RIGHT, 4 },
-    { GFX_SPIELER1_PUSH_LEFT, 4 },
-    { GFX_SPIELER1_PUSH_RIGHT, 4 },
-    { GFX_SPIELER2_UP, 4 },
-    { GFX_SPIELER2_DOWN, 4 },
-    { GFX_SPIELER2_LEFT, 4 },
-    { GFX_SPIELER2_RIGHT, 4 },
-    { GFX_SPIELER2_PUSH_LEFT, 4 },
-    { GFX_SPIELER2_PUSH_RIGHT, 4 },
-    { GFX_SPIELER3_UP, 4 },
-    { GFX_SPIELER3_DOWN, 4 },
-    { GFX_SPIELER3_LEFT, 4 },
-    { GFX_SPIELER3_RIGHT, 4 },
-    { GFX_SPIELER3_PUSH_LEFT, 4 },
-    { GFX_SPIELER3_PUSH_RIGHT, 4 },
-    { GFX_SPIELER4_UP, 4 },
-    { GFX_SPIELER4_DOWN, 4 },
-    { GFX_SPIELER4_LEFT, 4 },
-    { GFX_SPIELER4_RIGHT, 4 },
-    { GFX_SPIELER4_PUSH_LEFT, 4 },
-    { GFX_SPIELER4_PUSH_RIGHT, 4 },
-    { GFX_SP_MURPHY, 1 },
-    { GFX_MURPHY_GO_LEFT, 3 },
-    { GFX_MURPHY_GO_RIGHT, 3 },
-    { GFX_MURPHY_SNAP_UP, 1 },
-    { GFX_MURPHY_SNAP_DOWN, 1 },
-    { GFX_MURPHY_SNAP_RIGHT, 1 },
-    { GFX_MURPHY_SNAP_LEFT, 1 },
-    { GFX_MURPHY_PUSH_RIGHT, 1 },
-    { GFX_MURPHY_PUSH_LEFT, 1 },
-    { GFX_GEBLUBBER, 4 },
-    { GFX_DYNAMIT, 7 },
-    { GFX_DYNABOMB, 4 },
-    { GFX_EXPLOSION, 8 },
-    { GFX_SOKOBAN_OBJEKT, 1 },
-    { GFX_FUNKELN_BLAU, 3 },
-    { GFX_FUNKELN_WEISS, 3 },
-    { GFX2_SHIELD_PASSIVE, 3 },
-    { GFX2_SHIELD_ACTIVE, 3 },
-    { -1, 0 }
-  };
-#endif
-
-#endif /* TARGET_X11_NATIVE */
-#endif /* TARGET_X11 */
-
-  int i;
-
-  /* initialize pixmap array for special X11 tile clipping to Pixmap 'None' */
-  for (i = 0; i < NUM_TILES; i++)
-    tile_clipmask[i] = None;
-
-#if defined(TARGET_X11)
-  /* This stuff is needed because X11 (XSetClipOrigin(), to be precise) is
-     often very slow when preparing a masked XCopyArea() for big Pixmaps.
-     To prevent this, create small (tile-sized) mask Pixmaps which will then
-     be set much faster with XSetClipOrigin() and speed things up a lot. */
-
-  clip_gc_values.graphics_exposures = False;
-  clip_gc_valuemask = GCGraphicsExposures;
-  tile_clip_gc = XCreateGC(display, window->drawable,
-                          clip_gc_valuemask, &clip_gc_values);
-
-#if 0
-  for (i = 0; i < NUM_BITMAPS; i++)
+    EL_BUG,
+    EL_BUG_LEFT,               EL_BUG_RIGHT,
+    EL_BUG_UP,                 EL_BUG_DOWN
+  },
   {
-    if (pix[i]->clip_mask)
-    {
-      clip_gc_values.graphics_exposures = False;
-      clip_gc_values.clip_mask = pix[i]->clip_mask;
-      clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
-      pix[i]->stored_clip_gc = XCreateGC(display, window->drawable,
-                                        clip_gc_valuemask, &clip_gc_values);
-    }
-  }
-#endif
-
-#if defined(TARGET_X11_NATIVE)
-
-#if 0
-  /* create graphic context structures needed for clipping */
-  clip_gc_values.graphics_exposures = False;
-  clip_gc_valuemask = GCGraphicsExposures;
-  copy_clipmask_gc = XCreateGC(display, pix[PIX_BACK]->clip_mask,
-                              clip_gc_valuemask, &clip_gc_values);
-
-  /* create only those clipping Pixmaps we really need */
-  for (i = 0; tile_needs_clipping[i].start >= 0; i++)
+    EL_SPACESHIP,
+    EL_SPACESHIP_LEFT,         EL_SPACESHIP_RIGHT,
+    EL_SPACESHIP_UP,           EL_SPACESHIP_DOWN
+  },
   {
-    int j;
-
-    for (j = 0; j < tile_needs_clipping[i].count; j++)
-    {
-      int tile = tile_needs_clipping[i].start + j;
-      int graphic = tile;
-      int src_x, src_y;
-      Bitmap *src_bitmap;
-      Pixmap src_pixmap;
-
-      getGraphicSource(graphic, &src_bitmap, &src_x, &src_y);
-      src_pixmap = src_bitmap->clip_mask;
-
-      tile_clipmask[tile] = XCreatePixmap(display, window->drawable,
-                                         TILEX, TILEY, 1);
-
-      XCopyArea(display, src_pixmap, tile_clipmask[tile], copy_clipmask_gc,
-               src_x, src_y, TILEX, TILEY, 0, 0);
-    }
-  }
-
-  XFreeGC(display, copy_clipmask_gc);
-#endif
-
-#endif /* TARGET_X11_NATIVE */
-#endif /* TARGET_X11 */
-#endif
-}
-
-void FreeTileClipmasks()
-{
-#if 0
-#if defined(TARGET_X11)
-  int i;
-
-  for (i = 0; i < NUM_TILES; i++)
+    EL_BD_BUTTERFLY,
+    EL_BD_BUTTERFLY_LEFT,      EL_BD_BUTTERFLY_RIGHT,
+    EL_BD_BUTTERFLY_UP,                EL_BD_BUTTERFLY_DOWN
+  },
   {
-    if (tile_clipmask[i] != None)
-    {
-      XFreePixmap(display, tile_clipmask[i]);
-      tile_clipmask[i] = None;
-    }
-  }
-
-  if (tile_clip_gc)
-    XFreeGC(display, tile_clip_gc);
-  tile_clip_gc = None;
-
-#if 0
-  for (i = 0; i < NUM_BITMAPS; i++)
+    EL_BD_FIREFLY,
+    EL_BD_FIREFLY_LEFT,                EL_BD_FIREFLY_RIGHT,
+    EL_BD_FIREFLY_UP,          EL_BD_FIREFLY_DOWN
+  },
   {
-    if (pix[i] != NULL && pix[i]->stored_clip_gc)
-    {
-      XFreeGC(display, pix[i]->stored_clip_gc);
-      pix[i]->stored_clip_gc = None;
-    }
+    EL_PACMAN,
+    EL_PACMAN_LEFT,            EL_PACMAN_RIGHT,
+    EL_PACMAN_UP,              EL_PACMAN_DOWN
+  },
+  {
+    EL_YAMYAM,
+    EL_YAMYAM_LEFT,            EL_YAMYAM_RIGHT,
+    EL_YAMYAM_UP,              EL_YAMYAM_DOWN
+  },
+  {
+    EL_MOLE,
+    EL_MOLE_LEFT,              EL_MOLE_RIGHT,
+    EL_MOLE_UP,                        EL_MOLE_DOWN
+  },
+  {
+    -1,
+    -1, -1, -1, -1
   }
-#endif
-
-#endif /* TARGET_X11 */
-#endif
-}
+};
 
 void FreeGadgets()
 {
@@ -236,6 +105,8 @@ void InitGadgets()
   CreateToolButtons();
   CreateScreenGadgets();
 
+  InitGadgetsSoundCallback(PlaySoundActivating, PlaySoundSelecting);
+
   gadgets_initialized = TRUE;
 }
 
@@ -246,6 +117,14 @@ inline void InitElementSmallImagesScaledUp(int graphic)
 
 void InitElementSmallImages()
 {
+  static int special_graphics[] =
+  {
+    IMG_EDITOR_ELEMENT_BORDER,
+    IMG_EDITOR_ELEMENT_BORDER_INPUT,
+    IMG_EDITOR_CASCADE_LIST,
+    IMG_EDITOR_CASCADE_LIST_ACTIVE,
+    -1
+  };
   struct PropertyMapping *property_mapping = getImageListPropertyMapping();
   int num_property_mappings = getImageListPropertyMappingSize();
   int i;
@@ -258,16 +137,22 @@ void InitElementSmallImages()
   for (i = 0; element_to_special_graphic[i].element > -1; i++)
     InitElementSmallImagesScaledUp(element_to_special_graphic[i].graphic);
 
-  /* initialize images from dynamic configuration */
+  /* initialize images from dynamic configuration (may be elements or other) */
   for (i = 0; i < num_property_mappings; i++)
-    if (property_mapping[i].artwork_index < MAX_NUM_ELEMENTS)
-      InitElementSmallImagesScaledUp(property_mapping[i].artwork_index);
+    InitElementSmallImagesScaledUp(property_mapping[i].artwork_index);
 
-#if 1
-  /* !!! FIX THIS (CHANGE TO USING NORMAL ELEMENT GRAPHIC DEFINITIONS) !!! */
-  for (i = IMG_EMC_OBJECT; i <= IMG_EMC_SPRITE; i++)
-    InitElementSmallImagesScaledUp(i);
-#endif
+  /* initialize special images from above list (non-element images) */
+  for (i = 0; special_graphics[i] > -1; i++)
+    InitElementSmallImagesScaledUp(special_graphics[i]);
+}
+
+void InitScaledImages()
+{
+  int i;
+
+  /* scale normal images from static configuration, if not already scaled */
+  for (i = 0; i < NUM_IMAGE_FILES; i++)
+    ScaleImage(i, graphic_info[i].scale_up_factor);
 }
 
 #if 1
@@ -283,12 +168,15 @@ static int getFontBitmapID(int font_nr)
 {
   int special = -1;
 
-  if (game_status >= GAME_MODE_MAIN && game_status <= GAME_MODE_PSEUDO_PREVIEW)
+  if (game_status >= GAME_MODE_TITLE_INITIAL &&
+      game_status <= GAME_MODE_PSEUDO_PREVIEW)
     special = game_status;
   else if (game_status == GAME_MODE_PSEUDO_TYPENAME)
     special = GFX_SPECIAL_ARG_MAIN;
+#if 0
   else if (game_status == GAME_MODE_PLAYING)
     special = GFX_SPECIAL_ARG_DOOR;
+#endif
 
   if (special != -1)
     return font_info[font_nr].special_bitmap_id[special];
@@ -296,6 +184,19 @@ static int getFontBitmapID(int font_nr)
     return font_nr;
 }
 
+static int getFontFromToken(char *token)
+{
+  int i;
+
+  /* !!! OPTIMIZE THIS BY USING HASH !!! */
+  for (i = 0; i < NUM_FONTS; i++)
+    if (strEqual(token, font_info[i].token_name))
+      return i;
+
+  /* if font not found, use reliable default value */
+  return FONT_INITIAL_1;
+}
+
 void InitFontGraphicInfo()
 {
   static struct FontBitmapInfo *font_bitmap_info = NULL;
@@ -306,7 +207,8 @@ void InitFontGraphicInfo()
 
   if (graphic_info == NULL)            /* still at startup phase */
   {
-    InitFontInfo(font_initial, NUM_INITIAL_FONTS, getFontBitmapID);
+    InitFontInfo(font_initial, NUM_INITIAL_FONTS,
+                getFontBitmapID, getFontFromToken);
 
     return;
   }
@@ -314,13 +216,8 @@ void InitFontGraphicInfo()
   /* ---------- initialize font graphic definitions ---------- */
 
   /* always start with reliable default values (normal font graphics) */
-#if 1
   for (i = 0; i < NUM_FONTS; i++)
     font_info[i].graphic = IMG_FONT_INITIAL_1;
-#else
-  for (i = 0; i < NUM_FONTS; i++)
-    font_info[i].graphic = FONT_INITIAL_1;
-#endif
 
   /* initialize normal font/graphic mapping from static configuration */
   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
@@ -348,19 +245,35 @@ void InitFontGraphicInfo()
   /* initialize special font/graphic mapping from static configuration */
   for (i = 0; font_to_graphic[i].font_nr > -1; i++)
   {
-    int font_nr = font_to_graphic[i].font_nr;
-    int special = font_to_graphic[i].special;
-    int graphic = font_to_graphic[i].graphic;
+    int font_nr      = font_to_graphic[i].font_nr;
+    int special      = font_to_graphic[i].special;
+    int graphic      = font_to_graphic[i].graphic;
+    int base_graphic = font2baseimg(font_nr);
 
-    if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
+    if (IS_SPECIAL_GFX_ARG(special))
     {
+      boolean base_redefined =
+       getImageListEntryFromImageID(base_graphic)->redefined;
+      boolean special_redefined =
+       getImageListEntryFromImageID(graphic)->redefined;
+      boolean special_cloned = (graphic_info[graphic].clone_from != -1);
+
+      /* if the base font ("font.title_1", for example) has been redefined,
+        but not the special font ("font.title_1.LEVELS", for example), do not
+        use an existing (in this case considered obsolete) special font
+        anymore, but use the automatically determined default font */
+      /* special case: cloned special fonts must be explicitly redefined,
+        but are not automatically redefined by redefining base font */
+      if (base_redefined && !special_redefined && !special_cloned)
+       continue;
+
       font_info[font_nr].special_graphic[special] = graphic;
       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
       num_font_bitmaps++;
     }
   }
 
-  /* initialize special element/graphic mapping from dynamic configuration */
+  /* initialize special font/graphic mapping from dynamic configuration */
   for (i = 0; i < num_property_mappings; i++)
   {
     int font_nr = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
@@ -370,7 +283,7 @@ void InitFontGraphicInfo()
     if (font_nr < 0)
       continue;
 
-    if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
+    if (IS_SPECIAL_GFX_ARG(special))
     {
       font_info[font_nr].special_graphic[special] = graphic;
       font_info[font_nr].special_bitmap_id[special] = num_font_bitmaps;
@@ -378,6 +291,93 @@ void InitFontGraphicInfo()
     }
   }
 
+  /* correct special font/graphic mapping for cloned fonts for downwards
+     compatibility of PREVIEW fonts -- this is only needed for implicit
+     redefinition of special font by redefined base font, and only if other
+     fonts are cloned from this special font (like in the "Zelda" level set) */
+  for (i = 0; font_to_graphic[i].font_nr > -1; i++)
+  {
+    int font_nr = font_to_graphic[i].font_nr;
+    int special = font_to_graphic[i].special;
+    int graphic = font_to_graphic[i].graphic;
+
+    if (IS_SPECIAL_GFX_ARG(special))
+    {
+      boolean special_redefined =
+       getImageListEntryFromImageID(graphic)->redefined;
+      boolean special_cloned = (graphic_info[graphic].clone_from != -1);
+
+      if (special_cloned && !special_redefined)
+      {
+       int j;
+
+       for (j = 0; font_to_graphic[j].font_nr > -1; j++)
+       {
+         int font_nr2 = font_to_graphic[j].font_nr;
+         int special2 = font_to_graphic[j].special;
+         int graphic2 = font_to_graphic[j].graphic;
+
+         if (IS_SPECIAL_GFX_ARG(special2) &&
+             graphic2 == graphic_info[graphic].clone_from)
+         {
+           font_info[font_nr].special_graphic[special] =
+             font_info[font_nr2].special_graphic[special2];
+           font_info[font_nr].special_bitmap_id[special] =
+             font_info[font_nr2].special_bitmap_id[special2];
+         }
+       }
+      }
+    }
+  }
+
+  /* reset non-redefined ".active" font graphics if normal font is redefined */
+  /* (this different treatment is needed because normal and active fonts are
+     independently defined ("active" is not a property of font definitions!) */
+  for (i = 0; i < NUM_FONTS; i++)
+  {
+    int font_nr_base = i;
+    int font_nr_active = FONT_ACTIVE(font_nr_base);
+
+    /* check only those fonts with exist as normal and ".active" variant */
+    if (font_nr_base != font_nr_active)
+    {
+      int base_graphic = font_info[font_nr_base].graphic;
+      int active_graphic = font_info[font_nr_active].graphic;
+      boolean base_redefined =
+       getImageListEntryFromImageID(base_graphic)->redefined;
+      boolean active_redefined =
+       getImageListEntryFromImageID(active_graphic)->redefined;
+
+      /* if the base font ("font.menu_1", for example) has been redefined,
+        but not the active font ("font.menu_1.active", for example), do not
+        use an existing (in this case considered obsolete) active font
+        anymore, but use the automatically determined default font */
+      if (base_redefined && !active_redefined)
+       font_info[font_nr_active].graphic = base_graphic;
+
+      /* now also check each "special" font (which may be the same as above) */
+      for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
+      {
+       int base_graphic = font_info[font_nr_base].special_graphic[j];
+       int active_graphic = font_info[font_nr_active].special_graphic[j];
+       boolean base_redefined =
+         getImageListEntryFromImageID(base_graphic)->redefined;
+       boolean active_redefined =
+         getImageListEntryFromImageID(active_graphic)->redefined;
+
+       /* same as above, but check special graphic definitions, for example:
+          redefined "font.menu_1.MAIN" invalidates "font.menu_1.active.MAIN" */
+       if (base_redefined && !active_redefined)
+       {
+         font_info[font_nr_active].special_graphic[j] =
+           font_info[font_nr_base].special_graphic[j];
+         font_info[font_nr_active].special_bitmap_id[j] =
+           font_info[font_nr_base].special_bitmap_id[j];
+       }
+      }
+    }
+  }
+
   /* ---------- initialize font bitmap array ---------- */
 
   if (font_bitmap_info != NULL)
@@ -405,7 +405,7 @@ void InitFontGraphicInfo()
       if (graphic_info[graphic].anim_frames < MIN_NUM_CHARS_PER_FONT)
       {
        graphic_info[graphic].anim_frames = DEFAULT_NUM_CHARS_PER_FONT;
-       graphic_info[graphic].anim_frames_per_line= DEFAULT_NUM_CHARS_PER_LINE;
+       graphic_info[graphic].anim_frames_per_line = DEFAULT_NUM_CHARS_PER_LINE;
       }
 
       /* copy font relevant information from graphics information */
@@ -414,8 +414,11 @@ void InitFontGraphicInfo()
       font_bitmap_info[font_bitmap_id].src_y  = graphic_info[graphic].src_y;
       font_bitmap_info[font_bitmap_id].width  = graphic_info[graphic].width;
       font_bitmap_info[font_bitmap_id].height = graphic_info[graphic].height;
-      font_bitmap_info[font_bitmap_id].draw_x = graphic_info[graphic].draw_x;
-      font_bitmap_info[font_bitmap_id].draw_y = graphic_info[graphic].draw_y;
+
+      font_bitmap_info[font_bitmap_id].draw_xoffset =
+       graphic_info[graphic].draw_xoffset;
+      font_bitmap_info[font_bitmap_id].draw_yoffset =
+       graphic_info[graphic].draw_yoffset;
 
       font_bitmap_info[font_bitmap_id].num_chars =
        graphic_info[graphic].anim_frames;
@@ -424,7 +427,8 @@ void InitFontGraphicInfo()
     }
   }
 
-  InitFontInfo(font_bitmap_info, num_font_bitmaps, getFontBitmapID);
+  InitFontInfo(font_bitmap_info, num_font_bitmaps,
+              getFontBitmapID, getFontFromToken);
 }
 
 void InitElementGraphicInfo()
@@ -444,7 +448,7 @@ void InitElementGraphicInfo()
       element_info[i].graphic[act] = -1;
       element_info[i].crumbled[act] = -1;
 
-      for (dir = 0; dir < NUM_DIRECTIONS; dir++)
+      for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
       {
        element_info[i].direction_graphic[act][dir] = -1;
        element_info[i].direction_crumbled[act][dir] = -1;
@@ -468,8 +472,10 @@ void InitElementGraphicInfo()
     if ((action > -1 || direction > -1 || crumbled == TRUE) &&
        base_graphic != -1)
     {
-      boolean base_redefined = getImageListEntry(base_graphic)->redefined;
-      boolean act_dir_redefined = getImageListEntry(graphic)->redefined;
+      boolean base_redefined =
+       getImageListEntryFromImageID(base_graphic)->redefined;
+      boolean act_dir_redefined =
+       getImageListEntryFromImageID(graphic)->redefined;
 
       /* if the base graphic ("emerald", for example) has been redefined,
         but not the action graphic ("emerald.falling", for example), do not
@@ -508,6 +514,16 @@ void InitElementGraphicInfo()
     int graphic   = property_mapping[i].artwork_index;
     boolean crumbled = FALSE;
 
+#if 0
+    if ((element == EL_EM_DYNAMITE ||
+        element == EL_EM_DYNAMITE_ACTIVE) &&
+       action == ACTION_ACTIVE &&
+       (special == GFX_SPECIAL_ARG_EDITOR ||
+        special == GFX_SPECIAL_ARG_PANEL))
+      printf("::: DYNAMIC: %d, %d, %d -> %d\n",
+            element, action, special, graphic);
+#endif
+
     if (special == GFX_SPECIAL_ARG_CRUMBLED)
     {
       special = -1;
@@ -526,7 +542,7 @@ void InitElementGraphicInfo()
     if (crumbled)
     {
       if (direction < 0)
-       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
+       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
          element_info[element].direction_crumbled[action][dir] = -1;
 
       if (direction > -1)
@@ -537,7 +553,7 @@ void InitElementGraphicInfo()
     else
     {
       if (direction < 0)
-       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
+       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
          element_info[element].direction_graphic[action][dir] = -1;
 
       if (direction > -1)
@@ -565,7 +581,7 @@ void InitElementGraphicInfo()
        element_info[i].crumbled[act] =
          element_info[crumbled_like].crumbled[act];
       for (act = 0; act < NUM_ACTIONS; act++)
-       for (dir = 0; dir < NUM_DIRECTIONS; dir++)
+       for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
          element_info[i].direction_crumbled[act][dir] =
            element_info[crumbled_like].direction_crumbled[act][dir];
     }
@@ -574,7 +590,7 @@ void InitElementGraphicInfo()
     {
       element_info[i].graphic[ACTION_DIGGING] =
        element_info[diggable_like].graphic[ACTION_DIGGING];
-      for (dir = 0; dir < NUM_DIRECTIONS; dir++)
+      for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
        element_info[i].direction_graphic[ACTION_DIGGING][dir] =
          element_info[diggable_like].direction_graphic[ACTION_DIGGING][dir];
     }
@@ -586,6 +602,16 @@ void InitElementGraphicInfo()
 #endif
 
 #if 1
+  /* set hardcoded definitions for some internal elements without graphic */
+  for (i = 0; i < MAX_NUM_ELEMENTS; i++)
+  {
+    if (IS_EDITOR_CASCADE_INACTIVE(i))
+      element_info[i].graphic[ACTION_DEFAULT] = IMG_EDITOR_CASCADE_LIST;
+    else if (IS_EDITOR_CASCADE_ACTIVE(i))
+      element_info[i].graphic[ACTION_DEFAULT] = IMG_EDITOR_CASCADE_LIST_ACTIVE;
+  }
+#endif
+
   /* now set all undefined/invalid graphics to -1 to set to default after it */
   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
   {
@@ -601,7 +627,7 @@ void InitElementGraphicInfo()
       if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
        element_info[i].crumbled[act] = -1;
 
-      for (dir = 0; dir < NUM_DIRECTIONS; dir++)
+      for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
       {
        graphic = element_info[i].direction_graphic[act][dir];
        if (graphic > 0 && graphic_info[graphic].bitmap == NULL)
@@ -613,22 +639,86 @@ void InitElementGraphicInfo()
       }
     }
   }
-#endif
+
+  /* adjust graphics with 2nd tile for movement according to direction
+     (do this before correcting '-1' values to minimize calculations) */
+  for (i = 0; i < MAX_NUM_ELEMENTS; i++)
+  {
+    for (act = 0; act < NUM_ACTIONS; act++)
+    {
+      for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
+      {
+       int graphic = element_info[i].direction_graphic[act][dir];
+       int move_dir = (act == ACTION_FALLING ? MV_BIT_DOWN : dir);
+
+       if (act == ACTION_FALLING)      /* special case */
+         graphic = element_info[i].graphic[act];
+
+       if (graphic != -1 &&
+           graphic_info[graphic].double_movement &&
+           graphic_info[graphic].swap_double_tiles != 0)
+       {
+         struct GraphicInfo *g = &graphic_info[graphic];
+         int src_x_front = g->src_x;
+         int src_y_front = g->src_y;
+         int src_x_back = g->src_x + g->offset2_x;
+         int src_y_back = g->src_y + g->offset2_y;
+         boolean frames_are_ordered_diagonally = (g->offset_x != 0 &&
+                                                  g->offset_y != 0);
+         boolean front_is_left_or_upper = (src_x_front < src_x_back ||
+                                           src_y_front < src_y_back);
+         boolean swap_movement_tiles_always = (g->swap_double_tiles == 1);
+         boolean swap_movement_tiles_autodetected =
+           (!frames_are_ordered_diagonally &&
+            ((move_dir == MV_BIT_LEFT  && !front_is_left_or_upper) ||
+             (move_dir == MV_BIT_UP    && !front_is_left_or_upper) ||
+             (move_dir == MV_BIT_RIGHT &&  front_is_left_or_upper) ||
+             (move_dir == MV_BIT_DOWN  &&  front_is_left_or_upper)));
+         Bitmap *dummy;
+
+         /* swap frontside and backside graphic tile coordinates, if needed */
+         if (swap_movement_tiles_always || swap_movement_tiles_autodetected)
+         {
+           /* get current (wrong) backside tile coordinates */
+           getGraphicSourceExt(graphic, 0, &dummy, &src_x_back, &src_y_back,
+                               TRUE);
+
+           /* set frontside tile coordinates to backside tile coordinates */
+           g->src_x = src_x_back;
+           g->src_y = src_y_back;
+
+           /* invert tile offset to point to new backside tile coordinates */
+           g->offset2_x *= -1;
+           g->offset2_y *= -1;
+
+           /* do not swap front and backside tiles again after correction */
+           g->swap_double_tiles = 0;
+         }
+       }
+      }
+    }
+  }
 
   /* now set all '-1' values to element specific default values */
   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
   {
     int default_graphic = element_info[i].graphic[ACTION_DEFAULT];
     int default_crumbled = element_info[i].crumbled[ACTION_DEFAULT];
-    int default_direction_graphic[NUM_DIRECTIONS];
-    int default_direction_crumbled[NUM_DIRECTIONS];
+    int default_direction_graphic[NUM_DIRECTIONS_FULL];
+    int default_direction_crumbled[NUM_DIRECTIONS_FULL];
 
     if (default_graphic == -1)
       default_graphic = IMG_UNKNOWN;
+#if 1
+    if (default_crumbled == -1)
+      default_crumbled = default_graphic;
+#else
+    /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
     if (default_crumbled == -1)
       default_crumbled = IMG_EMPTY;
+#endif
 
-    for (dir = 0; dir < NUM_DIRECTIONS; dir++)
+    for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
     {
       default_direction_graphic[dir] =
        element_info[i].direction_graphic[ACTION_DEFAULT][dir];
@@ -637,8 +727,14 @@ void InitElementGraphicInfo()
 
       if (default_direction_graphic[dir] == -1)
        default_direction_graphic[dir] = default_graphic;
+#if 1
+      if (default_direction_crumbled[dir] == -1)
+       default_direction_crumbled[dir] = default_direction_graphic[dir];
+#else
+      /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
       if (default_direction_crumbled[dir] == -1)
        default_direction_crumbled[dir] = default_crumbled;
+#endif
     }
 
     for (act = 0; act < NUM_ACTIONS; act++)
@@ -654,6 +750,10 @@ void InitElementGraphicInfo()
       /* generic default action graphic (defined by "[default]" directive) */
       int default_action_graphic = element_info[EL_DEFAULT].graphic[act];
       int default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
+      int default_remove_graphic = IMG_EMPTY;
+
+      if (act_remove && default_action_graphic != -1)
+       default_remove_graphic = default_action_graphic;
 
       /* look for special default action graphic (classic game specific) */
       if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].graphic[act] != -1)
@@ -682,31 +782,50 @@ void InitElementGraphicInfo()
 
       if (default_action_graphic == -1)
        default_action_graphic = default_graphic;
+#if 1
+      if (default_action_crumbled == -1)
+       default_action_crumbled = default_action_graphic;
+#else
+      /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
       if (default_action_crumbled == -1)
        default_action_crumbled = default_crumbled;
+#endif
 
-      for (dir = 0; dir < NUM_DIRECTIONS; dir++)
+      for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
       {
+       /* use action graphic as the default direction graphic, if undefined */
        int default_action_direction_graphic = element_info[i].graphic[act];
        int default_action_direction_crumbled = element_info[i].crumbled[act];
 
        /* no graphic for current action -- use default direction graphic */
        if (default_action_direction_graphic == -1)
          default_action_direction_graphic =
-           (act_remove ? IMG_EMPTY :
+           (act_remove ? default_remove_graphic :
             act_turning ?
             element_info[i].direction_graphic[ACTION_TURNING][dir] :
+            default_action_graphic != default_graphic ?
+            default_action_graphic :
             default_direction_graphic[dir]);
+
+       if (element_info[i].direction_graphic[act][dir] == -1)
+         element_info[i].direction_graphic[act][dir] =
+           default_action_direction_graphic;
+
+#if 1
        if (default_action_direction_crumbled == -1)
          default_action_direction_crumbled =
-           (act_remove ? IMG_EMPTY :
+           element_info[i].direction_graphic[act][dir];
+#else
+       if (default_action_direction_crumbled == -1)
+         default_action_direction_crumbled =
+           (act_remove ? default_remove_graphic :
             act_turning ?
             element_info[i].direction_crumbled[ACTION_TURNING][dir] :
+            default_action_crumbled != default_crumbled ?
+            default_action_crumbled :
             default_direction_crumbled[dir]);
+#endif
 
-       if (element_info[i].direction_graphic[act][dir] == -1)
-         element_info[i].direction_graphic[act][dir] =
-           default_action_direction_graphic;
        if (element_info[i].direction_crumbled[act][dir] == -1)
          element_info[i].direction_crumbled[act][dir] =
            default_action_direction_crumbled;
@@ -715,18 +834,24 @@ void InitElementGraphicInfo()
       /* no graphic for this specific action -- use default action graphic */
       if (element_info[i].graphic[act] == -1)
        element_info[i].graphic[act] =
-         (act_remove ? IMG_EMPTY :
+         (act_remove ? default_remove_graphic :
           act_turning ? element_info[i].graphic[ACTION_TURNING] :
           default_action_graphic);
+#if 1
+      if (element_info[i].crumbled[act] == -1)
+       element_info[i].crumbled[act] = element_info[i].graphic[act];
+#else
       if (element_info[i].crumbled[act] == -1)
        element_info[i].crumbled[act] =
-         (act_remove ? IMG_EMPTY :
+         (act_remove ? default_remove_graphic :
           act_turning ? element_info[i].crumbled[ACTION_TURNING] :
           default_action_crumbled);
+#endif
     }
   }
 
-#if 1
+#if 0
+  /* !!! THIS ALSO CLEARS SPECIAL FLAGS (AND IS NOT NEEDED ANYWAY) !!! */
   /* set animation mode to "none" for each graphic with only 1 frame */
   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
   {
@@ -740,7 +865,7 @@ void InitElementGraphicInfo()
       if (graphic_info[crumbled].anim_frames == 1)
        graphic_info[crumbled].anim_mode = ANIM_NONE;
 
-      for (dir = 0; dir < NUM_DIRECTIONS; dir++)
+      for (dir = 0; dir < NUM_DIRECTIONS_FULL; dir++)
       {
        graphic = element_info[i].direction_graphic[act][dir];
        crumbled = element_info[i].direction_crumbled[act][dir];
@@ -761,7 +886,7 @@ void InitElementGraphicInfo()
     for (i = 0; i < MAX_NUM_ELEMENTS; i++)
       if (element_info[i].graphic[ACTION_DEFAULT] == IMG_UNKNOWN &&
          i != EL_UNKNOWN)
-       Error(ERR_RETURN, "warning: no graphic for element '%s' (%d)",
+       Error(ERR_INFO, "warning: no graphic for element '%s' (%d)",
              element_info[i].token_name, i);
   }
 #endif
@@ -787,8 +912,19 @@ void InitElementSpecialGraphicInfo()
     int special = element_to_special_graphic[i].special;
     int graphic = element_to_special_graphic[i].graphic;
     int base_graphic = el2baseimg(element);
-    boolean base_redefined = getImageListEntry(base_graphic)->redefined;
-    boolean special_redefined = getImageListEntry(graphic)->redefined;
+    boolean base_redefined =
+      getImageListEntryFromImageID(base_graphic)->redefined;
+    boolean special_redefined =
+      getImageListEntryFromImageID(graphic)->redefined;
+
+#if 0
+    if ((element == EL_EM_DYNAMITE ||
+        element == EL_EM_DYNAMITE_ACTIVE) &&
+       (special == GFX_SPECIAL_ARG_EDITOR ||
+        special == GFX_SPECIAL_ARG_PANEL))
+      printf("::: SPECIAL STATIC: %d, %d -> %d\n",
+            element, special, graphic);
+#endif
 
     /* if the base graphic ("emerald", for example) has been redefined,
        but not the special graphic ("emerald.EDITOR", for example), do not
@@ -803,74 +939,187 @@ void InitElementSpecialGraphicInfo()
   /* initialize special element/graphic mapping from dynamic configuration */
   for (i = 0; i < num_property_mappings; i++)
   {
-    int element = property_mapping[i].base_index;
-    int special = property_mapping[i].ext3_index;
-    int graphic = property_mapping[i].artwork_index;
+    int element   = property_mapping[i].base_index;
+    int action    = property_mapping[i].ext1_index;
+    int direction = property_mapping[i].ext2_index;
+    int special   = property_mapping[i].ext3_index;
+    int graphic   = property_mapping[i].artwork_index;
+
+#if 0
+    if ((element == EL_EM_DYNAMITE ||
+        element == EL_EM_DYNAMITE_ACTIVE ||
+        element == EL_CONVEYOR_BELT_1_MIDDLE ||
+        element == EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE) &&
+       (special == GFX_SPECIAL_ARG_EDITOR ||
+        special == GFX_SPECIAL_ARG_PANEL))
+      printf("::: SPECIAL DYNAMIC: %d, %d -> %d [%d]\n",
+            element, special, graphic, property_mapping[i].ext1_index);
+#endif
+
+#if 0
+    if (element == EL_CONVEYOR_BELT_1_MIDDLE &&
+       action == ACTION_ACTIVE)
+    {
+      element = EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE;
+      action = -1;
+    }
+#endif
+
+#if 0
+    if (element == EL_MAGIC_WALL &&
+       action == ACTION_ACTIVE)
+    {
+      element = EL_MAGIC_WALL_ACTIVE;
+      action = -1;
+    }
+#endif
+
+#if 1
+    /* for action ".active", replace element with active element, if exists */
+    if (action == ACTION_ACTIVE && element != ELEMENT_ACTIVE(element))
+    {
+      element = ELEMENT_ACTIVE(element);
+      action = -1;
+    }
+#endif
 
     if (element >= MAX_NUM_ELEMENTS)
       continue;
 
-    if (special >= 0 && special < NUM_SPECIAL_GFX_ARGS)
+    /* do not change special graphic if action or direction was specified */
+    if (action != -1 || direction != -1)
+      continue;
+
+    if (IS_SPECIAL_GFX_ARG(special))
       element_info[element].special_graphic[special] = graphic;
   }
 
-#if 1
   /* now set all undefined/invalid graphics to default */
   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
     for (j = 0; j < NUM_SPECIAL_GFX_ARGS; j++)
       if (graphic_info[element_info[i].special_graphic[j]].bitmap == NULL)
        element_info[i].special_graphic[j] =
          element_info[i].graphic[ACTION_DEFAULT];
-#endif
 }
 
-static int get_element_from_token(char *token)
+static int get_graphic_parameter_value(char *value_raw, char *suffix, int type)
 {
   int i;
+  int x = 0;
 
+  if (type != TYPE_TOKEN)
+    return get_parameter_value(value_raw, suffix, type);
+
+  if (strEqual(value_raw, ARG_UNDEFINED))
+    return ARG_UNDEFINED_VALUE;
+
+  /* !!! OPTIMIZE THIS BY USING HASH !!! */
   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
-    if (strcmp(element_info[i].token_name, token) == 0)
+    if (strEqual(element_info[i].token_name, value_raw))
       return i;
 
+  /* !!! OPTIMIZE THIS BY USING HASH !!! */
+  for (i = 0; image_config[i].token != NULL; i++)
+  {
+    int len_config_value = strlen(image_config[i].value);
+
+    if (!strEqual(&image_config[i].value[len_config_value - 4], ".pcx") &&
+       !strEqual(&image_config[i].value[len_config_value - 4], ".wav") &&
+       !strEqual(image_config[i].value, UNDEFINED_FILENAME))
+      continue;
+
+    if (strEqual(image_config[i].token, value_raw))
+      return x;
+
+    x++;
+  }
+
   return -1;
 }
 
-static void set_graphic_parameters(int graphic, char **parameter_raw)
+static int get_scaled_graphic_width(int graphic)
+{
+  int original_width = getOriginalImageWidthFromImageID(graphic);
+  int scale_up_factor = graphic_info[graphic].scale_up_factor;
+
+  return original_width * scale_up_factor;
+}
+
+static int get_scaled_graphic_height(int graphic)
+{
+  int original_height = getOriginalImageHeightFromImageID(graphic);
+  int scale_up_factor = graphic_info[graphic].scale_up_factor;
+
+  return original_height * scale_up_factor;
+}
+
+static void set_graphic_parameters(int graphic)
 {
+  struct FileInfo *image = getImageListEntryFromImageID(graphic);
+  char **parameter_raw = image->parameter;
   Bitmap *src_bitmap = getBitmapFromImageID(graphic);
   int parameter[NUM_GFX_ARGS];
   int anim_frames_per_row = 1, anim_frames_per_col = 1;
   int anim_frames_per_line = 1;
   int i;
 
+  /* if fallback to default artwork is done, also use the default parameters */
+  if (image->fallback_to_default)
+    parameter_raw = image->default_parameter;
+
   /* get integer values from string parameters */
   for (i = 0; i < NUM_GFX_ARGS; i++)
-  {
-    parameter[i] =
-      get_parameter_value(image_config_suffix[i].token, parameter_raw[i],
-                         image_config_suffix[i].type);
-
-    if (image_config_suffix[i].type == TYPE_TOKEN)
-      parameter[i] = get_element_from_token(parameter_raw[i]);
-  }
+    parameter[i] = get_graphic_parameter_value(parameter_raw[i],
+                                              image_config_suffix[i].token,
+                                              image_config_suffix[i].type);
 
   graphic_info[graphic].bitmap = src_bitmap;
 
-  /* start with reliable default values */
+  /* always start with reliable default values */
+  graphic_info[graphic].src_image_width = 0;
+  graphic_info[graphic].src_image_height = 0;
   graphic_info[graphic].src_x = 0;
   graphic_info[graphic].src_y = 0;
-  graphic_info[graphic].width = TILEX;
-  graphic_info[graphic].height = TILEY;
+  graphic_info[graphic].width  = TILEX;        /* default for element graphics */
+  graphic_info[graphic].height = TILEY;        /* default for element graphics */
   graphic_info[graphic].offset_x = 0;  /* one or both of these values ... */
   graphic_info[graphic].offset_y = 0;  /* ... will be corrected later */
+  graphic_info[graphic].offset2_x = 0; /* one or both of these values ... */
+  graphic_info[graphic].offset2_y = 0; /* ... will be corrected later */
+  graphic_info[graphic].swap_double_tiles = -1;        /* auto-detect tile swapping */
   graphic_info[graphic].crumbled_like = -1;    /* do not use clone element */
   graphic_info[graphic].diggable_like = -1;    /* do not use clone element */
   graphic_info[graphic].border_size = TILEX / 8;  /* "CRUMBLED" border size */
   graphic_info[graphic].scale_up_factor = 1;   /* default: no scaling up */
+  graphic_info[graphic].clone_from = -1;       /* do not use clone graphic */
   graphic_info[graphic].anim_delay_fixed = 0;
   graphic_info[graphic].anim_delay_random = 0;
   graphic_info[graphic].post_delay_fixed = 0;
   graphic_info[graphic].post_delay_random = 0;
+  graphic_info[graphic].fade_mode = FADE_MODE_DEFAULT;
+  graphic_info[graphic].fade_delay = -1;
+  graphic_info[graphic].post_delay = -1;
+  graphic_info[graphic].auto_delay = -1;
+  graphic_info[graphic].align = ALIGN_CENTER;  /* default for title screens */
+  graphic_info[graphic].valign = VALIGN_MIDDLE;        /* default for title screens */
+  graphic_info[graphic].sort_priority = 0;     /* default for title screens */
+
+#if 1
+  /* optional zoom factor for scaling up the image to a larger size */
+  if (parameter[GFX_ARG_SCALE_UP_FACTOR] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].scale_up_factor = parameter[GFX_ARG_SCALE_UP_FACTOR];
+  if (graphic_info[graphic].scale_up_factor < 1)
+    graphic_info[graphic].scale_up_factor = 1;         /* no scaling */
+#endif
+
+#if 1
+  if (graphic_info[graphic].use_image_size)
+  {
+    /* set new default bitmap size (with scaling, but without small images) */
+    graphic_info[graphic].width  = get_scaled_graphic_width(graphic);
+    graphic_info[graphic].height = get_scaled_graphic_height(graphic);
+  }
+#endif
 
   /* optional x and y tile position of animation frame sequence */
   if (parameter[GFX_ARG_XPOS] != ARG_UNDEFINED_VALUE)
@@ -890,21 +1139,25 @@ static void set_graphic_parameters(int graphic, char **parameter_raw)
   if (parameter[GFX_ARG_HEIGHT] != ARG_UNDEFINED_VALUE)
     graphic_info[graphic].height = parameter[GFX_ARG_HEIGHT];
 
+#if 0
   /* optional zoom factor for scaling up the image to a larger size */
   if (parameter[GFX_ARG_SCALE_UP_FACTOR] != ARG_UNDEFINED_VALUE)
     graphic_info[graphic].scale_up_factor = parameter[GFX_ARG_SCALE_UP_FACTOR];
   if (graphic_info[graphic].scale_up_factor < 1)
     graphic_info[graphic].scale_up_factor = 1;         /* no scaling */
+#endif
 
   if (src_bitmap)
   {
-    /* bitmap is not scaled at this stage, so calculate final size */
-    int scale_up_factor = graphic_info[graphic].scale_up_factor;
-    int src_bitmap_width  = src_bitmap->width  * scale_up_factor;
-    int src_bitmap_height = src_bitmap->height * scale_up_factor;
+    /* get final bitmap size (with scaling, but without small images) */
+    int src_image_width  = get_scaled_graphic_width(graphic);
+    int src_image_height = get_scaled_graphic_height(graphic);
 
-    anim_frames_per_row = src_bitmap_width  / graphic_info[graphic].width;
-    anim_frames_per_col = src_bitmap_height / graphic_info[graphic].height;
+    anim_frames_per_row = src_image_width  / graphic_info[graphic].width;
+    anim_frames_per_col = src_image_height / graphic_info[graphic].height;
+
+    graphic_info[graphic].src_image_width  = src_image_width;
+    graphic_info[graphic].src_image_height = src_image_height;
   }
 
   /* correct x or y offset dependent of vertical or horizontal frame order */
@@ -929,6 +1182,32 @@ static void set_graphic_parameters(int graphic, char **parameter_raw)
   if (parameter[GFX_ARG_YOFFSET] != ARG_UNDEFINED_VALUE)
     graphic_info[graphic].offset_y = parameter[GFX_ARG_YOFFSET];
 
+  /* optionally, moving animations may have separate start and end graphics */
+  graphic_info[graphic].double_movement = parameter[GFX_ARG_2ND_MOVEMENT_TILE];
+
+  if (parameter[GFX_ARG_2ND_VERTICAL] == ARG_UNDEFINED_VALUE)
+    parameter[GFX_ARG_2ND_VERTICAL] = !parameter[GFX_ARG_VERTICAL];
+
+  /* correct x or y offset2 dependent of vertical or horizontal frame order */
+  if (parameter[GFX_ARG_2ND_VERTICAL]) /* frames are ordered vertically */
+    graphic_info[graphic].offset2_y =
+      (parameter[GFX_ARG_2ND_OFFSET] != ARG_UNDEFINED_VALUE ?
+       parameter[GFX_ARG_2ND_OFFSET] : graphic_info[graphic].height);
+  else                                 /* frames are ordered horizontally */
+    graphic_info[graphic].offset2_x =
+      (parameter[GFX_ARG_2ND_OFFSET] != ARG_UNDEFINED_VALUE ?
+       parameter[GFX_ARG_2ND_OFFSET] : graphic_info[graphic].width);
+
+  /* optionally, the x and y offset of 2nd graphic can be specified directly */
+  if (parameter[GFX_ARG_2ND_XOFFSET] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].offset2_x = parameter[GFX_ARG_2ND_XOFFSET];
+  if (parameter[GFX_ARG_2ND_YOFFSET] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].offset2_y = parameter[GFX_ARG_2ND_YOFFSET];
+
+  /* optionally, the second movement tile can be specified as start tile */
+  if (parameter[GFX_ARG_2ND_SWAP_TILES] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].swap_double_tiles= parameter[GFX_ARG_2ND_SWAP_TILES];
+
   /* automatically determine correct number of frames, if not defined */
   if (parameter[GFX_ARG_FRAMES] != ARG_UNDEFINED_VALUE)
     graphic_info[graphic].anim_frames = parameter[GFX_ARG_FRAMES];
@@ -939,6 +1218,9 @@ static void set_graphic_parameters(int graphic, char **parameter_raw)
   else
     graphic_info[graphic].anim_frames = 1;
 
+  if (graphic_info[graphic].anim_frames == 0)  /* frames must be at least 1 */
+    graphic_info[graphic].anim_frames = 1;
+
   graphic_info[graphic].anim_frames_per_line =
     (parameter[GFX_ARG_FRAMES_PER_LINE] != ARG_UNDEFINED_VALUE ?
      parameter[GFX_ARG_FRAMES_PER_LINE] : anim_frames_per_line);
@@ -996,18 +1278,75 @@ static void set_graphic_parameters(int graphic, char **parameter_raw)
   graphic_info[graphic].step_delay  = parameter[GFX_ARG_STEP_DELAY];
 
   /* this is only used for drawing font characters */
-  graphic_info[graphic].draw_x = parameter[GFX_ARG_DRAW_XOFFSET];
-  graphic_info[graphic].draw_y = parameter[GFX_ARG_DRAW_YOFFSET];
+  graphic_info[graphic].draw_xoffset = parameter[GFX_ARG_DRAW_XOFFSET];
+  graphic_info[graphic].draw_yoffset = parameter[GFX_ARG_DRAW_YOFFSET];
 
   /* this is only used for drawing envelope graphics */
   graphic_info[graphic].draw_masked = parameter[GFX_ARG_DRAW_MASKED];
+
+  /* optional graphic for cloning all graphics settings */
+  if (parameter[GFX_ARG_CLONE_FROM] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].clone_from = parameter[GFX_ARG_CLONE_FROM];
+
+  /* optional settings for drawing title screens and title messages */
+  if (parameter[GFX_ARG_FADE_MODE] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].fade_mode = parameter[GFX_ARG_FADE_MODE];
+  if (parameter[GFX_ARG_FADE_DELAY] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].fade_delay = parameter[GFX_ARG_FADE_DELAY];
+  if (parameter[GFX_ARG_POST_DELAY] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].post_delay = parameter[GFX_ARG_POST_DELAY];
+  if (parameter[GFX_ARG_AUTO_DELAY] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].auto_delay = parameter[GFX_ARG_AUTO_DELAY];
+  if (parameter[GFX_ARG_ALIGN] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].align = parameter[GFX_ARG_ALIGN];
+  if (parameter[GFX_ARG_VALIGN] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].valign = parameter[GFX_ARG_VALIGN];
+  if (parameter[GFX_ARG_SORT_PRIORITY] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].sort_priority = parameter[GFX_ARG_SORT_PRIORITY];
+}
+
+static void set_cloned_graphic_parameters(int graphic)
+{
+  int fallback_graphic = IMG_CHAR_EXCLAM;
+  int max_num_images = getImageListSize();
+  int clone_graphic = graphic_info[graphic].clone_from;
+  int num_references_followed = 1;
+
+  while (graphic_info[clone_graphic].clone_from != -1 &&
+        num_references_followed < max_num_images)
+  {
+    clone_graphic = graphic_info[clone_graphic].clone_from;
+
+    num_references_followed++;
+  }
+
+  if (num_references_followed >= max_num_images)
+  {
+    Error(ERR_INFO_LINE, "-");
+    Error(ERR_INFO, "warning: error found in config file:");
+    Error(ERR_INFO, "- config file: '%s'", getImageConfigFilename());
+    Error(ERR_INFO, "- config token: '%s'", getTokenFromImageID(graphic));
+    Error(ERR_INFO, "error: loop discovered when resolving cloned graphics");
+    Error(ERR_INFO, "custom graphic rejected for this element/action");
+
+    if (graphic == fallback_graphic)
+      Error(ERR_EXIT, "fatal error: no fallback graphic available");
+
+    Error(ERR_INFO, "fallback done to 'char_exclam' for this graphic");
+    Error(ERR_INFO_LINE, "-");
+
+    graphic_info[graphic] = graphic_info[fallback_graphic];
+  }
+  else
+  {
+    graphic_info[graphic] = graphic_info[clone_graphic];
+    graphic_info[graphic].clone_from = clone_graphic;
+  }
 }
 
 static void InitGraphicInfo()
 {
   int fallback_graphic = IMG_CHAR_EXCLAM;
-  struct FileInfo *fallback_image = getImageListEntry(fallback_graphic);
-  Bitmap *fallback_bitmap = getBitmapFromImageID(fallback_graphic);
   int num_images = getImageListSize();
   int i;
 
@@ -1019,12 +1358,59 @@ static void InitGraphicInfo()
   GC copy_clipmask_gc = None;
 #endif
 
+  /* use image size as default values for width and height for these images */
+  static int full_size_graphics[] =
+  {
+    IMG_GLOBAL_BORDER,
+    IMG_GLOBAL_DOOR,
+
+    IMG_BACKGROUND_ENVELOPE_1,
+    IMG_BACKGROUND_ENVELOPE_2,
+    IMG_BACKGROUND_ENVELOPE_3,
+    IMG_BACKGROUND_ENVELOPE_4,
+
+    IMG_BACKGROUND,
+    IMG_BACKGROUND_TITLE_INITIAL,
+    IMG_BACKGROUND_TITLE,
+    IMG_BACKGROUND_MAIN,
+    IMG_BACKGROUND_LEVELS,
+    IMG_BACKGROUND_SCORES,
+    IMG_BACKGROUND_EDITOR,
+    IMG_BACKGROUND_INFO,
+    IMG_BACKGROUND_INFO_ELEMENTS,
+    IMG_BACKGROUND_INFO_MUSIC,
+    IMG_BACKGROUND_INFO_CREDITS,
+    IMG_BACKGROUND_INFO_PROGRAM,
+    IMG_BACKGROUND_INFO_LEVELSET,
+    IMG_BACKGROUND_SETUP,
+    IMG_BACKGROUND_DOOR,
+
+    IMG_TITLESCREEN_INITIAL_1,
+    IMG_TITLESCREEN_INITIAL_2,
+    IMG_TITLESCREEN_INITIAL_3,
+    IMG_TITLESCREEN_INITIAL_4,
+    IMG_TITLESCREEN_INITIAL_5,
+    IMG_TITLESCREEN_1,
+    IMG_TITLESCREEN_2,
+    IMG_TITLESCREEN_3,
+    IMG_TITLESCREEN_4,
+    IMG_TITLESCREEN_5,
+
+    -1
+  };
+
   checked_free(graphic_info);
 
   graphic_info = checked_calloc(num_images * sizeof(struct GraphicInfo));
 
-#if 0
-  printf("::: graphic_info: %d entries\n", num_images);
+#if 1
+  /* initialize "use_image_size" flag with default value */
+  for (i = 0; i < num_images; i++)
+    graphic_info[i].use_image_size = FALSE;
+
+  /* initialize "use_image_size" flag from static configuration above */
+  for (i = 0; full_size_graphics[i] != -1; i++)
+    graphic_info[full_size_graphics[i]].use_image_size = TRUE;
 #endif
 
 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
@@ -1043,100 +1429,100 @@ static void InitGraphicInfo()
   }
 #endif
 
+  /* first set all graphic paramaters ... */
+  for (i = 0; i < num_images; i++)
+    set_graphic_parameters(i);
+
+  /* ... then copy these parameters for cloned graphics */
+  for (i = 0; i < num_images; i++)
+    if (graphic_info[i].clone_from != -1)
+      set_cloned_graphic_parameters(i);
+
   for (i = 0; i < num_images; i++)
   {
-    struct FileInfo *image = getImageListEntry(i);
     Bitmap *src_bitmap;
     int src_x, src_y;
+    int width, height;
     int first_frame, last_frame;
-    int scale_up_factor, src_bitmap_width, src_bitmap_height;
-
-#if 0
-    printf("::: image: '%s' [%d]\n", image->token, i);
-#endif
-
-#if 0
-    printf("::: image # %d: '%s' ['%s']\n",
-          i, image->token,
-          getTokenFromImageID(i));
-#endif
-
-    set_graphic_parameters(i, image->parameter);
+    int src_bitmap_width, src_bitmap_height;
 
     /* now check if no animation frames are outside of the loaded image */
 
     if (graphic_info[i].bitmap == NULL)
       continue;                /* skip check for optional images that are undefined */
 
-    /* bitmap is not scaled at this stage, so calculate final size */
-    scale_up_factor = graphic_info[i].scale_up_factor;
-    src_bitmap_width  = graphic_info[i].bitmap->width  * scale_up_factor;
-    src_bitmap_height = graphic_info[i].bitmap->height * scale_up_factor;
+    /* get image size (this can differ from the standard element tile size!) */
+    width  = graphic_info[i].width;
+    height = graphic_info[i].height;
+
+    /* get final bitmap size (with scaling, but without small images) */
+    src_bitmap_width  = graphic_info[i].src_image_width;
+    src_bitmap_height = graphic_info[i].src_image_height;
+
+    /* check if first animation frame is inside specified bitmap */
 
     first_frame = 0;
     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
-    if (src_x < 0 || src_y < 0 ||
-       src_x + TILEX > src_bitmap_width ||
-       src_y + TILEY > src_bitmap_height)
-    {
-      Error(ERR_RETURN_LINE, "-");
-      Error(ERR_RETURN, "warning: error found in config file:");
-      Error(ERR_RETURN, "- config file: '%s'",
-           getImageConfigFilename());
-      Error(ERR_RETURN, "- config token: '%s'",
-           getTokenFromImageID(i));
-      Error(ERR_RETURN, "- image file: '%s'",
-           src_bitmap->source_filename);
-      Error(ERR_RETURN,
-           "error: first animation frame out of bounds (%d, %d)",
-           src_x, src_y);
-      Error(ERR_RETURN, "custom graphic rejected for this element/action");
 
 #if 1
-      Error(ERR_RETURN, "scale_up_factor == %d", scale_up_factor);
+    /* this avoids calculating wrong start position for out-of-bounds frame */
+    src_x = graphic_info[i].src_x;
+    src_y = graphic_info[i].src_y;
 #endif
 
+    if (src_x < 0 || src_y < 0 ||
+       src_x + width  > src_bitmap_width ||
+       src_y + height > src_bitmap_height)
+    {
+      Error(ERR_INFO_LINE, "-");
+      Error(ERR_INFO, "warning: error found in config file:");
+      Error(ERR_INFO, "- config file: '%s'", getImageConfigFilename());
+      Error(ERR_INFO, "- config token: '%s'", getTokenFromImageID(i));
+      Error(ERR_INFO, "- image file: '%s'", src_bitmap->source_filename);
+      Error(ERR_INFO,
+           "error: first animation frame out of bounds (%d, %d) [%d, %d]",
+           src_x, src_y, src_bitmap_width, src_bitmap_height);
+      Error(ERR_INFO, "custom graphic rejected for this element/action");
+
       if (i == fallback_graphic)
        Error(ERR_EXIT, "fatal error: no fallback graphic available");
 
-      Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
-      Error(ERR_RETURN_LINE, "-");
+      Error(ERR_INFO, "fallback done to 'char_exclam' for this graphic");
+      Error(ERR_INFO_LINE, "-");
 
-      set_graphic_parameters(i, fallback_image->default_parameter);
-      graphic_info[i].bitmap = fallback_bitmap;
+      graphic_info[i] = graphic_info[fallback_graphic];
     }
 
+    /* check if last animation frame is inside specified bitmap */
+
     last_frame = graphic_info[i].anim_frames - 1;
     getGraphicSource(i, last_frame, &src_bitmap, &src_x, &src_y);
+
     if (src_x < 0 || src_y < 0 ||
-       src_x + TILEX > src_bitmap_width ||
-       src_y + TILEY > src_bitmap_height)
+       src_x + width  > src_bitmap_width ||
+       src_y + height > src_bitmap_height)
     {
-      Error(ERR_RETURN_LINE, "-");
-      Error(ERR_RETURN, "warning: error found in config file:");
-      Error(ERR_RETURN, "- config file: '%s'",
-           getImageConfigFilename());
-      Error(ERR_RETURN, "- config token: '%s'",
-           getTokenFromImageID(i));
-      Error(ERR_RETURN, "- image file: '%s'",
-           src_bitmap->source_filename);
-      Error(ERR_RETURN,
-           "error: last animation frame (%d) out of bounds (%d, %d)",
-           last_frame, src_x, src_y);
-      Error(ERR_RETURN, "custom graphic rejected for this element/action");
+      Error(ERR_INFO_LINE, "-");
+      Error(ERR_INFO, "warning: error found in config file:");
+      Error(ERR_INFO, "- config file: '%s'", getImageConfigFilename());
+      Error(ERR_INFO, "- config token: '%s'", getTokenFromImageID(i));
+      Error(ERR_INFO, "- image file: '%s'", src_bitmap->source_filename);
+      Error(ERR_INFO,
+           "error: last animation frame (%d) out of bounds (%d, %d) [%d, %d]",
+           last_frame, src_x, src_y, src_bitmap_width, src_bitmap_height);
+      Error(ERR_INFO, "custom graphic rejected for this element/action");
 
       if (i == fallback_graphic)
        Error(ERR_EXIT, "fatal error: no fallback graphic available");
 
-      Error(ERR_RETURN, "fallback done to 'char_exclam' for this graphic");
-      Error(ERR_RETURN_LINE, "-");
+      Error(ERR_INFO, "fallback done to 'char_exclam' for this graphic");
+      Error(ERR_INFO_LINE, "-");
 
-      set_graphic_parameters(i, fallback_image->default_parameter);
-      graphic_info[i].bitmap = fallback_bitmap;
+      graphic_info[i] = graphic_info[fallback_graphic];
     }
 
 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
-    /* currently we need only a tile clip mask from the first frame */
+    /* currently we only need a tile clip mask from the first frame */
     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
 
     if (copy_clipmask_gc == None)
@@ -1197,8 +1583,8 @@ static void InitElementSoundInfo()
       element_info[element].sound[action] = sound;
     else
       for (j = 0; j < MAX_NUM_ELEMENTS; j++)
-       if (strcmp(element_info[j].class_name,
-                  element_info[element].class_name) == 0)
+       if (strEqual(element_info[j].class_name,
+                    element_info[element].class_name))
          element_info[j].sound[action] = sound;
   }
 
@@ -1216,8 +1602,8 @@ static void InitElementSoundInfo()
       action = ACTION_DEFAULT;
 
     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
-      if (strcmp(element_info[j].class_name,
-                element_info[element_class].class_name) == 0)
+      if (strEqual(element_info[j].class_name,
+                  element_info[element_class].class_name))
        element_info[j].sound[action] = sound;
   }
 
@@ -1272,6 +1658,14 @@ static void InitElementSoundInfo()
        element_info[i].sound[act] = default_action_sound;
     }
   }
+
+  /* copy sound settings to some elements that are only stored in level file
+     in native R'n'D levels, but are used by game engine in native EM levels */
+  for (i = 0; copy_properties[i][0] != -1; i++)
+    for (j = 1; j <= 4; j++)
+      for (act = 0; act < NUM_ACTIONS; act++)
+       element_info[copy_properties[i][j]].sound[act] =
+         element_info[copy_properties[i][0]].sound[act];
 }
 
 static void InitGameModeSoundInfo()
@@ -1300,7 +1694,6 @@ static void InitGameModeSoundInfo()
       menu.sound[i] = menu.sound[GAME_MODE_DEFAULT];
 
 #if 0
-  /* TEST ONLY */
   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
     if (menu.sound[i] != -1)
       printf("::: menu.sound[%d] == %d\n", i, menu.sound[i]);
@@ -1315,7 +1708,8 @@ static void set_sound_parameters(int sound, char **parameter_raw)
   /* get integer values from string parameters */
   for (i = 0; i < NUM_SND_ARGS; i++)
     parameter[i] =
-      get_parameter_value(sound_config_suffix[i].token, parameter_raw[i],
+      get_parameter_value(parameter_raw[i],
+                         sound_config_suffix[i].token,
                          sound_config_suffix[i].type);
 
   /* explicit loop mode setting in configuration overrides default value */
@@ -1326,15 +1720,11 @@ static void set_sound_parameters(int sound, char **parameter_raw)
   sound_info[sound].volume = parameter[SND_ARG_VOLUME];
 
   /* sound priority to give certain sounds a higher or lower priority */
-  sound_info[sound].volume = parameter[SND_ARG_VOLUME];
+  sound_info[sound].priority = parameter[SND_ARG_PRIORITY];
 }
 
 static void InitSoundInfo()
 {
-#if 0
-  struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
-  int num_property_mappings = getSoundListPropertyMappingSize();
-#endif
   int *sound_effect_properties;
   int num_sounds = getSoundListSize();
   int i, j;
@@ -1368,8 +1758,8 @@ static void InitSoundInfo()
       int len_action_text = strlen(element_action_info[j].suffix);
 
       if (len_action_text < len_effect_text &&
-         strcmp(&sound->token[len_effect_text - len_action_text],
-                element_action_info[j].suffix) == 0)
+         strEqual(&sound->token[len_effect_text - len_action_text],
+                  element_action_info[j].suffix))
       {
        sound_effect_properties[i] = element_action_info[j].value;
        sound_info[i].loop = element_action_info[j].is_loop_sound;
@@ -1378,11 +1768,6 @@ static void InitSoundInfo()
       }
     }
 
-#if 0
-    if (strcmp(sound->token, "custom_42") == 0)
-      printf("::: '%s' -> %d\n", sound->token, sound_info[i].loop);
-#endif
-
     /* associate elements and some selected sound actions */
 
     for (j = 0; j < MAX_NUM_ELEMENTS; j++)
@@ -1407,61 +1792,6 @@ static void InitSoundInfo()
   }
 
   free(sound_effect_properties);
-
-#if 0
-  /* !!! now handled in InitElementSoundInfo() !!! */
-  /* initialize element/sound mapping from dynamic configuration */
-  for (i = 0; i < num_property_mappings; i++)
-  {
-    int element   = property_mapping[i].base_index;
-    int action    = property_mapping[i].ext1_index;
-    int sound     = property_mapping[i].artwork_index;
-
-    if (action < 0)
-      action = ACTION_DEFAULT;
-
-    printf("::: %d: %d, %d, %d ['%s']\n",
-          i, element, action, sound, element_info[element].token_name);
-
-    element_info[element].sound[action] = sound;
-  }
-#endif
-
-#if 0
-  /* TEST ONLY */
-  {
-    int element = EL_CUSTOM_11;
-    int j = 0;
-
-    while (element_action_info[j].suffix)
-    {
-      printf("element %d, sound action '%s'  == %d\n",
-            element, element_action_info[j].suffix,
-            element_info[element].sound[j]);
-      j++;
-    }
-  }
-
-  PlaySoundLevelElementAction(0,0, EL_CUSTOM_11, ACTION_PUSHING);
-#endif
-
-#if 0
-  /* TEST ONLY */
-  {
-    int element = EL_SAND;
-    int sound_action = ACTION_DIGGING;
-    int j = 0;
-
-    while (element_action_info[j].suffix)
-    {
-      if (element_action_info[j].value == sound_action)
-       printf("element %d, sound action '%s'  == %d\n",
-              element, element_action_info[j].suffix,
-              element_info[element].sound[sound_action]);
-      j++;
-    }
-  }
-#endif
 }
 
 static void InitGameModeMusicInfo()
@@ -1539,7 +1869,6 @@ static void InitGameModeMusicInfo()
       menu.music[i] = menu.music[GAME_MODE_DEFAULT];
 
 #if 0
-  /* TEST ONLY */
   for (i = 0; i < MAX_LEVELS; i++)
     if (levelset.music[i] != -1)
       printf("::: levelset.music[%d] == %d\n", i, levelset.music[i]);
@@ -1557,7 +1886,8 @@ static void set_music_parameters(int music, char **parameter_raw)
   /* get integer values from string parameters */
   for (i = 0; i < NUM_MUS_ARGS; i++)
     parameter[i] =
-      get_parameter_value(music_config_suffix[i].token, parameter_raw[i],
+      get_parameter_value(parameter_raw[i],
+                         music_config_suffix[i].token,
                          music_config_suffix[i].type);
 
   /* explicit loop mode setting in configuration overrides default value */
@@ -1607,9 +1937,12 @@ static void ReinitializeGraphics()
   InitElementGraphicInfo();            /* element game graphic mapping */
   InitElementSpecialGraphicInfo();     /* element special graphic mapping */
 
-  InitElementSmallImages();            /* scale images to all needed sizes */
+  InitElementSmallImages();            /* scale elements to all needed sizes */
+  InitScaledImages();                  /* scale all other images, if needed */
   InitFontGraphicInfo();               /* initialize text drawing functions */
 
+  InitGraphicInfo_EM();                        /* graphic mapping for EM engine */
+
   SetMainBackgroundImage(IMG_BACKGROUND);
   SetDoorBackgroundImage(IMG_BACKGROUND_DOOR);
 
@@ -1650,7 +1983,7 @@ static int get_special_property_bit(int element, int property_bit_nr)
     { EL_SP_MURPHY,            0       },
     { EL_SOKOBAN_FIELD_PLAYER, 0       },
 
-    /* all element that can move may be able to also move into acid */
+    /* all elements that can move may be able to also move into acid */
     { EL_BUG,                  1       },
     { EL_BUG_LEFT,             1       },
     { EL_BUG_RIGHT,            1       },
@@ -1672,6 +2005,10 @@ static int get_special_property_bit(int element, int property_bit_nr)
     { EL_BD_FIREFLY_UP,                4       },
     { EL_BD_FIREFLY_DOWN,      4       },
     { EL_YAMYAM,               5       },
+    { EL_YAMYAM_LEFT,          5       },
+    { EL_YAMYAM_RIGHT,         5       },
+    { EL_YAMYAM_UP,            5       },
+    { EL_YAMYAM_DOWN,          5       },
     { EL_DARK_YAMYAM,          6       },
     { EL_ROBOT,                        7       },
     { EL_PACMAN,               8       },
@@ -1692,6 +2029,7 @@ static int get_special_property_bit(int element, int property_bit_nr)
     { EL_SP_ELECTRON,          15      },
     { EL_BALLOON,              16      },
     { EL_SPRING,               17      },
+    { EL_EMC_ANDROID,          18      },
 
     { -1,                      -1      },
   };
@@ -1733,7 +2071,6 @@ static int get_special_property_bit(int element, int property_bit_nr)
   return -1;
 }
 
-#if 1
 void setBitfieldProperty(int *bitfield, int property_bit_nr, int element,
                         boolean property_value)
 {
@@ -1758,31 +2095,60 @@ boolean getBitfieldProperty(int *bitfield, int property_bit_nr, int element)
   return FALSE;
 }
 
-#else
-
-void setMoveIntoAcidProperty(struct LevelInfo *level, int element, boolean set)
+static void ResolveGroupElementExt(int group_element, int recursion_depth)
 {
-  int bit_nr = get_special_property_bit(element, EP_CAN_MOVE_INTO_ACID);
+  static int group_nr;
+  static struct ElementGroupInfo *group;
+  struct ElementGroupInfo *actual_group = element_info[group_element].group;
+  int i;
 
-  if (bit_nr > -1)
+  if (actual_group == NULL)                    /* not yet initialized */
+    return;
+
+  if (recursion_depth > NUM_GROUP_ELEMENTS)    /* recursion too deep */
   {
-    level->can_move_into_acid_bits &= ~(1 << bit_nr);
+    Error(ERR_WARN, "recursion too deep when resolving group element %d",
+         group_element - EL_GROUP_START + 1);
 
-    if (set)
-      level->can_move_into_acid_bits |= (1 << bit_nr);
+    /* replace element which caused too deep recursion by question mark */
+    group->element_resolved[group->num_elements_resolved++] = EL_UNKNOWN;
+
+    return;
   }
-}
 
-boolean getMoveIntoAcidProperty(struct LevelInfo *level, int element)
-{
-  int bit_nr = get_special_property_bit(element, EP_CAN_MOVE_INTO_ACID);
+  if (recursion_depth == 0)                    /* initialization */
+  {
+    group = actual_group;
+    group_nr = GROUP_NR(group_element);
 
-  if (bit_nr > -1)
-    return ((level->can_move_into_acid_bits & (1 << bit_nr)) != 0);
+    group->num_elements_resolved = 0;
+    group->choice_pos = 0;
 
-  return FALSE;
+    for (i = 0; i < MAX_NUM_ELEMENTS; i++)
+      element_info[i].in_group[group_nr] = FALSE;
+  }
+
+  for (i = 0; i < actual_group->num_elements; i++)
+  {
+    int element = actual_group->element[i];
+
+    if (group->num_elements_resolved == NUM_FILE_ELEMENTS)
+      break;
+
+    if (IS_GROUP_ELEMENT(element))
+      ResolveGroupElementExt(element, recursion_depth + 1);
+    else
+    {
+      group->element_resolved[group->num_elements_resolved++] = element;
+      element_info[element].in_group[group_nr] = TRUE;
+    }
+  }
+}
+
+void ResolveGroupElement(int group_element)
+{
+  ResolveGroupElementExt(group_element, 0);
 }
-#endif
 
 void InitElementPropertiesStatic()
 {
@@ -1795,14 +2161,18 @@ void InitElementPropertiesStatic()
     EL_TRAP,
     EL_INVISIBLE_SAND,
     EL_INVISIBLE_SAND_ACTIVE,
+    EL_EMC_GRASS,
 
     /* !!! currently not diggable, but handled by 'ep_dont_run_into' !!! */
     /* (if amoeba can grow into anything diggable, maybe keep these out) */
 #if 0
     EL_LANDMINE,
+    EL_DC_LANDMINE,
     EL_TRAP_ACTIVE,
     EL_SP_BUGGY_BASE_ACTIVE,
+    EL_EMC_PLANT,
 #endif
+
     -1
   };
 
@@ -1822,7 +2192,12 @@ void InitElementPropertiesStatic()
     EL_EM_KEY_2,
     EL_EM_KEY_3,
     EL_EM_KEY_4,
+    EL_EMC_KEY_5,
+    EL_EMC_KEY_6,
+    EL_EMC_KEY_7,
+    EL_EMC_KEY_8,
     EL_DYNAMITE,
+    EL_EM_DYNAMITE,
     EL_DYNABOMB_INCREASE_NUMBER,
     EL_DYNABOMB_INCREASE_SIZE,
     EL_DYNABOMB_INCREASE_POWER,
@@ -1830,7 +2205,7 @@ void InitElementPropertiesStatic()
     EL_SP_DISK_RED,
     EL_PEARL,
     EL_CRYSTAL,
-    EL_KEY_WHITE,
+    EL_DC_KEY_WHITE,
     EL_SHIELD_NORMAL,
     EL_SHIELD_DEADLY,
     EL_EXTRA_TIME,
@@ -1839,6 +2214,14 @@ void InitElementPropertiesStatic()
     EL_ENVELOPE_3,
     EL_ENVELOPE_4,
     EL_SPEED_PILL,
+    EL_EMC_LENSES,
+    EL_EMC_MAGNIFIER,
+
+#if 0
+    /* !!! handle separately !!! */
+    EL_DC_LANDMINE,    /* deadly when running into, but can be snapped */
+#endif
+
     -1
   };
 
@@ -1865,9 +2248,12 @@ void InitElementPropertiesStatic()
     /* !!! maybe this should better be handled by 'ep_diggable' !!! */
 #if 1
     EL_LANDMINE,
+    EL_DC_LANDMINE,
     EL_TRAP_ACTIVE,
     EL_SP_BUGGY_BASE_ACTIVE,
+    EL_EMC_PLANT,
 #endif
+
     -1
   };
 
@@ -1886,6 +2272,7 @@ void InitElementPropertiesStatic()
     EL_PACMAN,
     EL_SP_SNIKSNAK,
     EL_SP_ELECTRON,
+
     -1
   };
 
@@ -1895,6 +2282,7 @@ void InitElementPropertiesStatic()
     EL_SPACESHIP,
     EL_BD_BUTTERFLY,
     EL_BD_FIREFLY,
+
     -1
   };
 
@@ -1939,13 +2327,44 @@ void InitElementPropertiesStatic()
     EL_SIGN_STOP,
     EL_SIGN_WHEELCHAIR,
     EL_SIGN_PARKING,
-    EL_SIGN_ONEWAY,
+    EL_SIGN_NO_ENTRY,
+    EL_SIGN_UNUSED_1,
+    EL_SIGN_GIVE_WAY,
+    EL_SIGN_ENTRY_FORBIDDEN,
+    EL_SIGN_EMERGENCY_EXIT,
+    EL_SIGN_YIN_YANG,
+    EL_SIGN_UNUSED_2,
+    EL_SIGN_SPERMS,
+    EL_SIGN_BULLET,
     EL_SIGN_HEART,
-    EL_SIGN_TRIANGLE,
-    EL_SIGN_ROUND,
-    EL_SIGN_EXIT,
-    EL_SIGN_YINYANG,
-    EL_SIGN_OTHER,
+    EL_SIGN_CROSS,
+    EL_SIGN_FRANKIE,
+    EL_STEEL_EXIT_CLOSED,
+    EL_STEEL_EXIT_OPEN,
+    EL_EM_STEEL_EXIT_CLOSED,
+    EL_EM_STEEL_EXIT_OPEN,
+    EL_DC_STEELWALL_1_LEFT,
+    EL_DC_STEELWALL_1_RIGHT,
+    EL_DC_STEELWALL_1_TOP,
+    EL_DC_STEELWALL_1_BOTTOM,
+    EL_DC_STEELWALL_1_HORIZONTAL,
+    EL_DC_STEELWALL_1_VERTICAL,
+    EL_DC_STEELWALL_1_TOPLEFT,
+    EL_DC_STEELWALL_1_TOPRIGHT,
+    EL_DC_STEELWALL_1_BOTTOMLEFT,
+    EL_DC_STEELWALL_1_BOTTOMRIGHT,
+    EL_DC_STEELWALL_1_TOPLEFT_2,
+    EL_DC_STEELWALL_1_TOPRIGHT_2,
+    EL_DC_STEELWALL_1_BOTTOMLEFT_2,
+    EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
+    EL_DC_STEELWALL_2_LEFT,
+    EL_DC_STEELWALL_2_RIGHT,
+    EL_DC_STEELWALL_2_TOP,
+    EL_DC_STEELWALL_2_BOTTOM,
+    EL_DC_STEELWALL_2_HORIZONTAL,
+    EL_DC_STEELWALL_2_VERTICAL,
+    EL_DC_STEELWALL_2_MIDDLE,
+    EL_DC_STEELWALL_2_SINGLE,
     EL_STEELWALL_SLIPPERY,
     EL_EMC_STEELWALL_1,
     EL_EMC_STEELWALL_2,
@@ -1960,6 +2379,10 @@ void InitElementPropertiesStatic()
     EL_GATE_2_GRAY,
     EL_GATE_3_GRAY,
     EL_GATE_4_GRAY,
+    EL_GATE_1_GRAY_ACTIVE,
+    EL_GATE_2_GRAY_ACTIVE,
+    EL_GATE_3_GRAY_ACTIVE,
+    EL_GATE_4_GRAY_ACTIVE,
     EL_EM_GATE_1,
     EL_EM_GATE_2,
     EL_EM_GATE_3,
@@ -1968,21 +2391,41 @@ void InitElementPropertiesStatic()
     EL_EM_GATE_2_GRAY,
     EL_EM_GATE_3_GRAY,
     EL_EM_GATE_4_GRAY,
+    EL_EM_GATE_1_GRAY_ACTIVE,
+    EL_EM_GATE_2_GRAY_ACTIVE,
+    EL_EM_GATE_3_GRAY_ACTIVE,
+    EL_EM_GATE_4_GRAY_ACTIVE,
+    EL_EMC_GATE_5,
+    EL_EMC_GATE_6,
+    EL_EMC_GATE_7,
+    EL_EMC_GATE_8,
+    EL_EMC_GATE_5_GRAY,
+    EL_EMC_GATE_6_GRAY,
+    EL_EMC_GATE_7_GRAY,
+    EL_EMC_GATE_8_GRAY,
+    EL_EMC_GATE_5_GRAY_ACTIVE,
+    EL_EMC_GATE_6_GRAY_ACTIVE,
+    EL_EMC_GATE_7_GRAY_ACTIVE,
+    EL_EMC_GATE_8_GRAY_ACTIVE,
+    EL_DC_GATE_WHITE,
+    EL_DC_GATE_WHITE_GRAY,
+    EL_DC_GATE_WHITE_GRAY_ACTIVE,
+    EL_DC_GATE_FAKE_GRAY,
     EL_SWITCHGATE_OPEN,
     EL_SWITCHGATE_OPENING,
     EL_SWITCHGATE_CLOSED,
     EL_SWITCHGATE_CLOSING,
-#if 0
-    EL_SWITCHGATE_SWITCH_UP,
-    EL_SWITCHGATE_SWITCH_DOWN,
+#if 1
+    EL_DC_SWITCHGATE_SWITCH_UP,
+    EL_DC_SWITCHGATE_SWITCH_DOWN,
 #endif
     EL_TIMEGATE_OPEN,
     EL_TIMEGATE_OPENING,
     EL_TIMEGATE_CLOSED,
     EL_TIMEGATE_CLOSING,
-#if 0
-    EL_TIMEGATE_SWITCH,
-    EL_TIMEGATE_SWITCH_ACTIVE,
+#if 1
+    EL_DC_TIMEGATE_SWITCH,
+    EL_DC_TIMEGATE_SWITCH_ACTIVE,
 #endif
     EL_TUBE_ANY,
     EL_TUBE_VERTICAL,
@@ -1995,6 +2438,10 @@ void InitElementPropertiesStatic()
     EL_TUBE_LEFT_DOWN,
     EL_TUBE_RIGHT_UP,
     EL_TUBE_RIGHT_DOWN,
+    EL_EXPANDABLE_STEELWALL_HORIZONTAL,
+    EL_EXPANDABLE_STEELWALL_VERTICAL,
+    EL_EXPANDABLE_STEELWALL_ANY,
+
     -1
   };
 
@@ -2032,6 +2479,13 @@ void InitElementPropertiesStatic()
     EL_STEELWALL_SLIPPERY,
     EL_PEARL,
     EL_CRYSTAL,
+    EL_EMC_WALL_SLIPPERY_1,
+    EL_EMC_WALL_SLIPPERY_2,
+    EL_EMC_WALL_SLIPPERY_3,
+    EL_EMC_WALL_SLIPPERY_4,
+    EL_EMC_MAGIC_BALL,
+    EL_EMC_MAGIC_BALL_ACTIVE,
+
     -1
   };
 
@@ -2060,6 +2514,8 @@ void InitElementPropertiesStatic()
     EL_SP_ELECTRON,
     EL_BALLOON,
     EL_SPRING,
+    EL_EMC_ANDROID,
+
     -1
   };
 
@@ -2077,8 +2533,10 @@ void InitElementPropertiesStatic()
     EL_NUT,
     EL_AMOEBA_DROP,
     EL_QUICKSAND_FULL,
+    EL_QUICKSAND_FAST_FULL,
     EL_MAGIC_WALL_FULL,
     EL_BD_MAGIC_WALL_FULL,
+    EL_DC_MAGIC_WALL_FULL,
     EL_TIME_ORB_FULL,
     EL_TIME_ORB_EMPTY,
     EL_SP_ZONK,
@@ -2088,6 +2546,7 @@ void InitElementPropertiesStatic()
     EL_CRYSTAL,
     EL_SPRING,
     EL_DX_SUPABOMB,
+
     -1
   };
 
@@ -2113,6 +2572,7 @@ void InitElementPropertiesStatic()
     EL_CRYSTAL,
     EL_SPRING,
     EL_DX_SUPABOMB,
+
     -1
   };
 
@@ -2121,6 +2581,7 @@ void InitElementPropertiesStatic()
     EL_ROCK,
     EL_BD_ROCK,
     EL_SP_ZONK,
+
     -1
   };
 
@@ -2129,6 +2590,7 @@ void InitElementPropertiesStatic()
     EL_ROCK,
     EL_BD_ROCK,
     EL_SP_ZONK,
+
     -1
   };
 
@@ -2146,8 +2608,10 @@ void InitElementPropertiesStatic()
     EL_MOLE,
 
     /* new elements */
-    EL_DYNAMITE_ACTIVE,
     EL_DYNAMITE,
+    EL_DYNAMITE_ACTIVE,
+    EL_EM_DYNAMITE,
+    EL_EM_DYNAMITE_ACTIVE,
     EL_DYNABOMB_PLAYER_1_ACTIVE,
     EL_DYNABOMB_PLAYER_2_ACTIVE,
     EL_DYNABOMB_PLAYER_3_ACTIVE,
@@ -2165,6 +2629,7 @@ void InitElementPropertiesStatic()
 #if 0
     EL_BLACK_ORB,
 #endif
+
     -1
   };
 
@@ -2180,6 +2645,7 @@ void InitElementPropertiesStatic()
     EL_PIG,
     EL_DRAGON,
     EL_MOLE,
+
     -1
   };
 
@@ -2188,6 +2654,7 @@ void InitElementPropertiesStatic()
     EL_BOMB,
     EL_SP_DISK_ORANGE,
     EL_DX_SUPABOMB,
+
     -1
   };
 
@@ -2197,8 +2664,11 @@ void InitElementPropertiesStatic()
     EL_SP_EMPTY_SPACE,
     EL_SOKOBAN_FIELD_EMPTY,
     EL_EXIT_OPEN,
+    EL_EM_EXIT_OPEN,
     EL_SP_EXIT_OPEN,
     EL_SP_EXIT_OPENING,
+    EL_STEEL_EXIT_OPEN,
+    EL_EM_STEEL_EXIT_OPEN,
     EL_GATE_1,
     EL_GATE_2,
     EL_GATE_3,
@@ -2207,9 +2677,14 @@ void InitElementPropertiesStatic()
     EL_GATE_2_GRAY,
     EL_GATE_3_GRAY,
     EL_GATE_4_GRAY,
+    EL_GATE_1_GRAY_ACTIVE,
+    EL_GATE_2_GRAY_ACTIVE,
+    EL_GATE_3_GRAY_ACTIVE,
+    EL_GATE_4_GRAY_ACTIVE,
     EL_PENGUIN,
     EL_PIG,
     EL_DRAGON,
+
     -1
   };
 
@@ -2226,6 +2701,7 @@ void InitElementPropertiesStatic()
     EL_TUBE_LEFT_DOWN,
     EL_TUBE_RIGHT_UP,
     EL_TUBE_RIGHT_DOWN,
+
     -1
   };
 
@@ -2244,8 +2720,28 @@ void InitElementPropertiesStatic()
     EL_EM_GATE_2_GRAY,
     EL_EM_GATE_3_GRAY,
     EL_EM_GATE_4_GRAY,
+    EL_EM_GATE_1_GRAY_ACTIVE,
+    EL_EM_GATE_2_GRAY_ACTIVE,
+    EL_EM_GATE_3_GRAY_ACTIVE,
+    EL_EM_GATE_4_GRAY_ACTIVE,
+    EL_EMC_GATE_5,
+    EL_EMC_GATE_6,
+    EL_EMC_GATE_7,
+    EL_EMC_GATE_8,
+    EL_EMC_GATE_5_GRAY,
+    EL_EMC_GATE_6_GRAY,
+    EL_EMC_GATE_7_GRAY,
+    EL_EMC_GATE_8_GRAY,
+    EL_EMC_GATE_5_GRAY_ACTIVE,
+    EL_EMC_GATE_6_GRAY_ACTIVE,
+    EL_EMC_GATE_7_GRAY_ACTIVE,
+    EL_EMC_GATE_8_GRAY_ACTIVE,
+    EL_DC_GATE_WHITE,
+    EL_DC_GATE_WHITE_GRAY,
+    EL_DC_GATE_WHITE_GRAY_ACTIVE,
     EL_SWITCHGATE_OPEN,
     EL_TIMEGATE_OPEN,
+
     -1
   };
 
@@ -2270,6 +2766,7 @@ void InitElementPropertiesStatic()
     EL_SP_GRAVITY_OFF_PORT_RIGHT,
     EL_SP_GRAVITY_OFF_PORT_UP,
     EL_SP_GRAVITY_OFF_PORT_DOWN,
+
     -1
   };
 
@@ -2304,6 +2801,8 @@ void InitElementPropertiesStatic()
     EL_SATELLITE,
     EL_SP_DISK_YELLOW,
     EL_BALLOON,
+    EL_EMC_ANDROID,
+
     -1
   };
 
@@ -2336,6 +2835,25 @@ void InitElementPropertiesStatic()
     EL_EM_GATE_2_GRAY,
     EL_EM_GATE_3_GRAY,
     EL_EM_GATE_4_GRAY,
+    EL_EM_GATE_1_GRAY_ACTIVE,
+    EL_EM_GATE_2_GRAY_ACTIVE,
+    EL_EM_GATE_3_GRAY_ACTIVE,
+    EL_EM_GATE_4_GRAY_ACTIVE,
+    EL_EMC_GATE_5,
+    EL_EMC_GATE_6,
+    EL_EMC_GATE_7,
+    EL_EMC_GATE_8,
+    EL_EMC_GATE_5_GRAY,
+    EL_EMC_GATE_6_GRAY,
+    EL_EMC_GATE_7_GRAY,
+    EL_EMC_GATE_8_GRAY,
+    EL_EMC_GATE_5_GRAY_ACTIVE,
+    EL_EMC_GATE_6_GRAY_ACTIVE,
+    EL_EMC_GATE_7_GRAY_ACTIVE,
+    EL_EMC_GATE_8_GRAY_ACTIVE,
+    EL_DC_GATE_WHITE,
+    EL_DC_GATE_WHITE_GRAY,
+    EL_DC_GATE_WHITE_GRAY_ACTIVE,
     EL_SWITCHGATE_OPEN,
     EL_TIMEGATE_OPEN,
 
@@ -2359,6 +2877,7 @@ void InitElementPropertiesStatic()
     EL_SP_GRAVITY_OFF_PORT_RIGHT,
     EL_SP_GRAVITY_OFF_PORT_UP,
     EL_SP_GRAVITY_OFF_PORT_DOWN,
+
     -1
   };
 
@@ -2381,8 +2900,10 @@ void InitElementPropertiesStatic()
     EL_MOLE,
 
     /* elements that can explode by explosion or by dragonfire */
-    EL_DYNAMITE_ACTIVE,
     EL_DYNAMITE,
+    EL_DYNAMITE_ACTIVE,
+    EL_EM_DYNAMITE,
+    EL_EM_DYNAMITE_ACTIVE,
     EL_DYNABOMB_PLAYER_1_ACTIVE,
     EL_DYNABOMB_PLAYER_2_ACTIVE,
     EL_DYNABOMB_PLAYER_3_ACTIVE,
@@ -2400,6 +2921,7 @@ void InitElementPropertiesStatic()
 
     /* elements that can explode only by explosion */
     EL_BLACK_ORB,
+
     -1
   };
 
@@ -2429,6 +2951,8 @@ void InitElementPropertiesStatic()
     EL_SP_GRAVITY_OFF_PORT_RIGHT,
     EL_SP_GRAVITY_OFF_PORT_UP,
     EL_SP_GRAVITY_OFF_PORT_DOWN,
+    EL_EMC_GRASS,
+
     -1
   };
 
@@ -2441,6 +2965,7 @@ void InitElementPropertiesStatic()
     EL_SP_MURPHY,
     EL_SOKOBAN_FIELD_PLAYER,
     EL_TRIGGER_PLAYER,
+
     -1
   };
 
@@ -2454,6 +2979,23 @@ void InitElementPropertiesStatic()
     EL_EMERALD_RED,
     EL_EMERALD_PURPLE,
     EL_DIAMOND,
+
+    -1
+  };
+
+  static int ep_can_pass_dc_magic_wall[] =
+  {
+    EL_ROCK,
+    EL_BD_ROCK,
+    EL_EMERALD,
+    EL_BD_DIAMOND,
+    EL_EMERALD_YELLOW,
+    EL_EMERALD_RED,
+    EL_EMERALD_PURPLE,
+    EL_DIAMOND,
+    EL_PEARL,
+    EL_CRYSTAL,
+
     -1
   };
 
@@ -2475,16 +3017,23 @@ void InitElementPropertiesStatic()
     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
     EL_SWITCHGATE_SWITCH_UP,
     EL_SWITCHGATE_SWITCH_DOWN,
+    EL_DC_SWITCHGATE_SWITCH_UP,
+    EL_DC_SWITCHGATE_SWITCH_DOWN,
     EL_LIGHT_SWITCH,
     EL_LIGHT_SWITCH_ACTIVE,
     EL_TIMEGATE_SWITCH,
+    EL_DC_TIMEGATE_SWITCH,
     EL_BALLOON_SWITCH_LEFT,
     EL_BALLOON_SWITCH_RIGHT,
     EL_BALLOON_SWITCH_UP,
     EL_BALLOON_SWITCH_DOWN,
     EL_BALLOON_SWITCH_ANY,
+    EL_BALLOON_SWITCH_NONE,
     EL_LAMP,
     EL_TIME_ORB_FULL,
+    EL_EMC_MAGIC_BALL_SWITCH,
+    EL_EMC_MAGIC_BALL_SWITCH_ACTIVE,
+
     -1
   };
 
@@ -2518,6 +3067,7 @@ void InitElementPropertiesStatic()
     EL_BD_AMOEBA,
     EL_CHAR_QUESTION,
     EL_UNKNOWN,
+
     -1
   };
 
@@ -2592,6 +3142,7 @@ void InitElementPropertiesStatic()
     EL_SP_BUGGY_BASE_ACTIVE,
     EL_SP_EXIT_OPENING,
     EL_SP_EXIT_CLOSING,
+
     -1
   };
 
@@ -2608,6 +3159,7 @@ void InitElementPropertiesStatic()
     EL_PLAYER_3,
     EL_PLAYER_4,
     EL_INVISIBLE_STEELWALL,
+
     -1
   };
 
@@ -2619,6 +3171,7 @@ void InitElementPropertiesStatic()
     EL_EMERALD_RED,
     EL_EMERALD_PURPLE,
     EL_DIAMOND,
+
     -1
   };
 
@@ -2646,6 +3199,7 @@ void InitElementPropertiesStatic()
     EL_DIAMOND,
     EL_PEARL,
     EL_CRYSTAL,
+
     -1
   };
 
@@ -2659,6 +3213,7 @@ void InitElementPropertiesStatic()
     EL_DIAMOND,
     EL_PEARL,
     EL_CRYSTAL,
+
     -1
   };
 
@@ -2670,6 +3225,7 @@ void InitElementPropertiesStatic()
     EL_EMERALD_RED,
     EL_EMERALD_PURPLE,
     EL_DIAMOND,
+
     -1
   };
 
@@ -2684,6 +3240,10 @@ void InitElementPropertiesStatic()
     EL_GATE_2_GRAY,
     EL_GATE_3_GRAY,
     EL_GATE_4_GRAY,
+    EL_GATE_1_GRAY_ACTIVE,
+    EL_GATE_2_GRAY_ACTIVE,
+    EL_GATE_3_GRAY_ACTIVE,
+    EL_GATE_4_GRAY_ACTIVE,
     EL_EM_GATE_1,
     EL_EM_GATE_2,
     EL_EM_GATE_3,
@@ -2692,6 +3252,10 @@ void InitElementPropertiesStatic()
     EL_EM_GATE_2_GRAY,
     EL_EM_GATE_3_GRAY,
     EL_EM_GATE_4_GRAY,
+    EL_EM_GATE_1_GRAY_ACTIVE,
+    EL_EM_GATE_2_GRAY_ACTIVE,
+    EL_EM_GATE_3_GRAY_ACTIVE,
+    EL_EM_GATE_4_GRAY_ACTIVE,
     EL_EXIT_CLOSED,
     EL_EXIT_OPENING,
     EL_EXIT_OPEN,
@@ -2702,6 +3266,7 @@ void InitElementPropertiesStatic()
     EL_EXPANDABLE_WALL_VERTICAL,
     EL_EXPANDABLE_WALL_ANY,
     EL_EXPANDABLE_WALL_GROWING,
+    EL_BD_EXPANDABLE_WALL,
     EL_BD_WALL,
     EL_SP_CHIP_SINGLE,
     EL_SP_CHIP_LEFT,
@@ -2740,6 +3305,7 @@ void InitElementPropertiesStatic()
     EL_EMC_WALL_6,
     EL_EMC_WALL_7,
     EL_EMC_WALL_8,
+
     -1
   };
 
@@ -2750,6 +3316,7 @@ void InitElementPropertiesStatic()
     EL_EXPANDABLE_WALL_HORIZONTAL,
     EL_EXPANDABLE_WALL_VERTICAL,
     EL_EXPANDABLE_WALL_ANY,
+    EL_BD_EXPANDABLE_WALL,
     EL_BD_WALL,
     EL_WALL_SLIPPERY,
     EL_EXIT_CLOSED,
@@ -2791,8 +3358,12 @@ void InitElementPropertiesStatic()
     EL_INVISIBLE_WALL_ACTIVE,
     EL_SWITCHGATE_SWITCH_UP,
     EL_SWITCHGATE_SWITCH_DOWN,
+    EL_DC_SWITCHGATE_SWITCH_UP,
+    EL_DC_SWITCHGATE_SWITCH_DOWN,
     EL_TIMEGATE_SWITCH,
     EL_TIMEGATE_SWITCH_ACTIVE,
+    EL_DC_TIMEGATE_SWITCH,
+    EL_DC_TIMEGATE_SWITCH_ACTIVE,
     EL_EMC_WALL_1,
     EL_EMC_WALL_2,
     EL_EMC_WALL_3,
@@ -2847,13 +3418,42 @@ void InitElementPropertiesStatic()
     EL_SIGN_STOP,
     EL_SIGN_WHEELCHAIR,
     EL_SIGN_PARKING,
-    EL_SIGN_ONEWAY,
+    EL_SIGN_NO_ENTRY,
+    EL_SIGN_UNUSED_1,
+    EL_SIGN_GIVE_WAY,
+    EL_SIGN_ENTRY_FORBIDDEN,
+    EL_SIGN_EMERGENCY_EXIT,
+    EL_SIGN_YIN_YANG,
+    EL_SIGN_UNUSED_2,
+    EL_SIGN_SPERMS,
+    EL_SIGN_BULLET,
     EL_SIGN_HEART,
-    EL_SIGN_TRIANGLE,
-    EL_SIGN_ROUND,
-    EL_SIGN_EXIT,
-    EL_SIGN_YINYANG,
-    EL_SIGN_OTHER,
+    EL_SIGN_CROSS,
+    EL_SIGN_FRANKIE,
+    EL_STEEL_EXIT_CLOSED,
+    EL_STEEL_EXIT_OPEN,
+    EL_DC_STEELWALL_1_LEFT,
+    EL_DC_STEELWALL_1_RIGHT,
+    EL_DC_STEELWALL_1_TOP,
+    EL_DC_STEELWALL_1_BOTTOM,
+    EL_DC_STEELWALL_1_HORIZONTAL,
+    EL_DC_STEELWALL_1_VERTICAL,
+    EL_DC_STEELWALL_1_TOPLEFT,
+    EL_DC_STEELWALL_1_TOPRIGHT,
+    EL_DC_STEELWALL_1_BOTTOMLEFT,
+    EL_DC_STEELWALL_1_BOTTOMRIGHT,
+    EL_DC_STEELWALL_1_TOPLEFT_2,
+    EL_DC_STEELWALL_1_TOPRIGHT_2,
+    EL_DC_STEELWALL_1_BOTTOMLEFT_2,
+    EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
+    EL_DC_STEELWALL_2_LEFT,
+    EL_DC_STEELWALL_2_RIGHT,
+    EL_DC_STEELWALL_2_TOP,
+    EL_DC_STEELWALL_2_BOTTOM,
+    EL_DC_STEELWALL_2_HORIZONTAL,
+    EL_DC_STEELWALL_2_VERTICAL,
+    EL_DC_STEELWALL_2_MIDDLE,
+    EL_DC_STEELWALL_2_SINGLE,
     EL_STEELWALL_SLIPPERY,
     EL_EMC_STEELWALL_1,
     EL_EMC_STEELWALL_2,
@@ -2868,6 +3468,10 @@ void InitElementPropertiesStatic()
     EL_GATE_2_GRAY,
     EL_GATE_3_GRAY,
     EL_GATE_4_GRAY,
+    EL_GATE_1_GRAY_ACTIVE,
+    EL_GATE_2_GRAY_ACTIVE,
+    EL_GATE_3_GRAY_ACTIVE,
+    EL_GATE_4_GRAY_ACTIVE,
     EL_EM_GATE_1,
     EL_EM_GATE_2,
     EL_EM_GATE_3,
@@ -2876,6 +3480,10 @@ void InitElementPropertiesStatic()
     EL_EM_GATE_2_GRAY,
     EL_EM_GATE_3_GRAY,
     EL_EM_GATE_4_GRAY,
+    EL_EM_GATE_1_GRAY_ACTIVE,
+    EL_EM_GATE_2_GRAY_ACTIVE,
+    EL_EM_GATE_3_GRAY_ACTIVE,
+    EL_EM_GATE_4_GRAY_ACTIVE,
     EL_SWITCHGATE_OPEN,
     EL_SWITCHGATE_OPENING,
     EL_SWITCHGATE_CLOSED,
@@ -2895,6 +3503,7 @@ void InitElementPropertiesStatic()
     EL_TUBE_LEFT_DOWN,
     EL_TUBE_RIGHT_UP,
     EL_TUBE_RIGHT_DOWN,
+
     -1
   };
 
@@ -2911,6 +3520,7 @@ void InitElementPropertiesStatic()
     EL_PACMAN,
     EL_SP_SNIKSNAK,
     EL_SP_ELECTRON,
+
     -1
   };
 
@@ -2928,6 +3538,7 @@ void InitElementPropertiesStatic()
     EL_CONVEYOR_BELT_4_LEFT,
     EL_CONVEYOR_BELT_4_MIDDLE,
     EL_CONVEYOR_BELT_4_RIGHT,
+
     -1
   };
 
@@ -2945,6 +3556,7 @@ void InitElementPropertiesStatic()
     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
+
     -1
   };
 
@@ -2962,6 +3574,7 @@ void InitElementPropertiesStatic()
     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
+
     -1
   };
 
@@ -2978,6 +3591,18 @@ void InitElementPropertiesStatic()
     EL_TUBE_VERTICAL_LEFT,
     EL_TUBE_VERTICAL_RIGHT,
     EL_TUBE_ANY,
+
+    -1
+  };
+
+  static int ep_acid_pool[] =
+  {
+    EL_ACID_POOL_TOPLEFT,
+    EL_ACID_POOL_TOPRIGHT,
+    EL_ACID_POOL_BOTTOMLEFT,
+    EL_ACID_POOL_BOTTOM,
+    EL_ACID_POOL_BOTTOMRIGHT,
+
     -1
   };
 
@@ -2991,6 +3616,10 @@ void InitElementPropertiesStatic()
     EL_GATE_2_GRAY,
     EL_GATE_3_GRAY,
     EL_GATE_4_GRAY,
+    EL_GATE_1_GRAY_ACTIVE,
+    EL_GATE_2_GRAY_ACTIVE,
+    EL_GATE_3_GRAY_ACTIVE,
+    EL_GATE_4_GRAY_ACTIVE,
     EL_EM_GATE_1,
     EL_EM_GATE_2,
     EL_EM_GATE_3,
@@ -2999,6 +3628,26 @@ void InitElementPropertiesStatic()
     EL_EM_GATE_2_GRAY,
     EL_EM_GATE_3_GRAY,
     EL_EM_GATE_4_GRAY,
+    EL_EM_GATE_1_GRAY_ACTIVE,
+    EL_EM_GATE_2_GRAY_ACTIVE,
+    EL_EM_GATE_3_GRAY_ACTIVE,
+    EL_EM_GATE_4_GRAY_ACTIVE,
+    EL_EMC_GATE_5,
+    EL_EMC_GATE_6,
+    EL_EMC_GATE_7,
+    EL_EMC_GATE_8,
+    EL_EMC_GATE_5_GRAY,
+    EL_EMC_GATE_6_GRAY,
+    EL_EMC_GATE_7_GRAY,
+    EL_EMC_GATE_8_GRAY,
+    EL_EMC_GATE_5_GRAY_ACTIVE,
+    EL_EMC_GATE_6_GRAY_ACTIVE,
+    EL_EMC_GATE_7_GRAY_ACTIVE,
+    EL_EMC_GATE_8_GRAY_ACTIVE,
+    EL_DC_GATE_WHITE,
+    EL_DC_GATE_WHITE_GRAY,
+    EL_DC_GATE_WHITE_GRAY_ACTIVE,
+
     -1
   };
 
@@ -3009,6 +3658,8 @@ void InitElementPropertiesStatic()
     EL_AMOEBA_DRY,
     EL_AMOEBA_FULL,
     EL_BD_AMOEBA,
+    EL_EMC_DRIPPER,
+
     -1
   };
 
@@ -3018,16 +3669,30 @@ void InitElementPropertiesStatic()
     EL_AMOEBA_DRY,
     EL_AMOEBA_FULL,
     EL_BD_AMOEBA,
+    EL_EMC_DRIPPER,
+
     -1
   };
 
-  static int ep_has_content[] =
+  static int ep_has_editor_content[] =
   {
+    EL_PLAYER_1,
+    EL_PLAYER_2,
+    EL_PLAYER_3,
+    EL_PLAYER_4,
+    EL_SP_MURPHY,
     EL_YAMYAM,
+    EL_YAMYAM_LEFT,
+    EL_YAMYAM_RIGHT,
+    EL_YAMYAM_UP,
+    EL_YAMYAM_DOWN,
     EL_AMOEBA_WET,
     EL_AMOEBA_DRY,
     EL_AMOEBA_FULL,
     EL_BD_AMOEBA,
+    EL_EMC_MAGIC_BALL,
+    EL_EMC_ANDROID,
+
     -1
   };
 
@@ -3046,17 +3711,21 @@ void InitElementPropertiesStatic()
     EL_AMOEBA_FULL,
     EL_GAME_OF_LIFE,
     EL_BIOMAZE,
+    EL_EMC_DRIPPER,
+
     -1
   };
 
   static int ep_active_bomb[] =
   {
     EL_DYNAMITE_ACTIVE,
+    EL_EM_DYNAMITE_ACTIVE,
     EL_DYNABOMB_PLAYER_1_ACTIVE,
     EL_DYNABOMB_PLAYER_2_ACTIVE,
     EL_DYNABOMB_PLAYER_3_ACTIVE,
     EL_DYNABOMB_PLAYER_4_ACTIVE,
     EL_SP_DISK_RED_ACTIVE,
+
     -1
   };
 
@@ -3070,6 +3739,7 @@ void InitElementPropertiesStatic()
     EL_STEELWALL,
     EL_AMOEBA_DEAD,
     EL_QUICKSAND_EMPTY,
+    EL_QUICKSAND_FAST_EMPTY,
     EL_STONEBLOCK,
     EL_ROBOT_WHEEL,
     EL_KEY_1,
@@ -3080,6 +3750,10 @@ void InitElementPropertiesStatic()
     EL_EM_KEY_2,
     EL_EM_KEY_3,
     EL_EM_KEY_4,
+    EL_EMC_KEY_5,
+    EL_EMC_KEY_6,
+    EL_EMC_KEY_7,
+    EL_EMC_KEY_8,
     EL_GATE_1,
     EL_GATE_2,
     EL_GATE_3,
@@ -3088,6 +3762,10 @@ void InitElementPropertiesStatic()
     EL_GATE_2_GRAY,
     EL_GATE_3_GRAY,
     EL_GATE_4_GRAY,
+    EL_GATE_1_GRAY_ACTIVE,
+    EL_GATE_2_GRAY_ACTIVE,
+    EL_GATE_3_GRAY_ACTIVE,
+    EL_GATE_4_GRAY_ACTIVE,
     EL_EM_GATE_1,
     EL_EM_GATE_2,
     EL_EM_GATE_3,
@@ -3096,7 +3774,28 @@ void InitElementPropertiesStatic()
     EL_EM_GATE_2_GRAY,
     EL_EM_GATE_3_GRAY,
     EL_EM_GATE_4_GRAY,
+    EL_EM_GATE_1_GRAY_ACTIVE,
+    EL_EM_GATE_2_GRAY_ACTIVE,
+    EL_EM_GATE_3_GRAY_ACTIVE,
+    EL_EM_GATE_4_GRAY_ACTIVE,
+    EL_EMC_GATE_5,
+    EL_EMC_GATE_6,
+    EL_EMC_GATE_7,
+    EL_EMC_GATE_8,
+    EL_EMC_GATE_5_GRAY,
+    EL_EMC_GATE_6_GRAY,
+    EL_EMC_GATE_7_GRAY,
+    EL_EMC_GATE_8_GRAY,
+    EL_EMC_GATE_5_GRAY_ACTIVE,
+    EL_EMC_GATE_6_GRAY_ACTIVE,
+    EL_EMC_GATE_7_GRAY_ACTIVE,
+    EL_EMC_GATE_8_GRAY_ACTIVE,
+    EL_DC_GATE_WHITE,
+    EL_DC_GATE_WHITE_GRAY,
+    EL_DC_GATE_WHITE_GRAY_ACTIVE,
+    EL_DC_GATE_FAKE_GRAY,
     EL_DYNAMITE,
+    EL_EM_DYNAMITE,
     EL_INVISIBLE_STEELWALL,
     EL_INVISIBLE_WALL,
     EL_INVISIBLE_SAND,
@@ -3125,6 +3824,8 @@ void InitElementPropertiesStatic()
     EL_MAGIC_WALL_DEAD,
     EL_BD_MAGIC_WALL,
     EL_BD_MAGIC_WALL_DEAD,
+    EL_DC_MAGIC_WALL,
+    EL_DC_MAGIC_WALL_DEAD,
     EL_AMOEBA_TO_DIAMOND,
     EL_BLOCKED,
     EL_SP_EMPTY,
@@ -3185,18 +3886,49 @@ void InitElementPropertiesStatic()
     EL_SIGN_STOP,
     EL_SIGN_WHEELCHAIR,
     EL_SIGN_PARKING,
-    EL_SIGN_ONEWAY,
+    EL_SIGN_NO_ENTRY,
+    EL_SIGN_UNUSED_1,
+    EL_SIGN_GIVE_WAY,
+    EL_SIGN_ENTRY_FORBIDDEN,
+    EL_SIGN_EMERGENCY_EXIT,
+    EL_SIGN_YIN_YANG,
+    EL_SIGN_UNUSED_2,
+    EL_SIGN_SPERMS,
+    EL_SIGN_BULLET,
     EL_SIGN_HEART,
-    EL_SIGN_TRIANGLE,
-    EL_SIGN_ROUND,
-    EL_SIGN_EXIT,
-    EL_SIGN_YINYANG,
-    EL_SIGN_OTHER,
+    EL_SIGN_CROSS,
+    EL_SIGN_FRANKIE,
+    EL_DC_STEELWALL_1_LEFT,
+    EL_DC_STEELWALL_1_RIGHT,
+    EL_DC_STEELWALL_1_TOP,
+    EL_DC_STEELWALL_1_BOTTOM,
+    EL_DC_STEELWALL_1_HORIZONTAL,
+    EL_DC_STEELWALL_1_VERTICAL,
+    EL_DC_STEELWALL_1_TOPLEFT,
+    EL_DC_STEELWALL_1_TOPRIGHT,
+    EL_DC_STEELWALL_1_BOTTOMLEFT,
+    EL_DC_STEELWALL_1_BOTTOMRIGHT,
+    EL_DC_STEELWALL_1_TOPLEFT_2,
+    EL_DC_STEELWALL_1_TOPRIGHT_2,
+    EL_DC_STEELWALL_1_BOTTOMLEFT_2,
+    EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
+    EL_DC_STEELWALL_2_LEFT,
+    EL_DC_STEELWALL_2_RIGHT,
+    EL_DC_STEELWALL_2_TOP,
+    EL_DC_STEELWALL_2_BOTTOM,
+    EL_DC_STEELWALL_2_HORIZONTAL,
+    EL_DC_STEELWALL_2_VERTICAL,
+    EL_DC_STEELWALL_2_MIDDLE,
+    EL_DC_STEELWALL_2_SINGLE,
     EL_STEELWALL_SLIPPERY,
     EL_EMC_STEELWALL_1,
     EL_EMC_STEELWALL_2,
     EL_EMC_STEELWALL_3,
     EL_EMC_STEELWALL_4,
+    EL_EMC_WALL_SLIPPERY_1,
+    EL_EMC_WALL_SLIPPERY_2,
+    EL_EMC_WALL_SLIPPERY_3,
+    EL_EMC_WALL_SLIPPERY_4,
     EL_EMC_WALL_1,
     EL_EMC_WALL_2,
     EL_EMC_WALL_3,
@@ -3205,6 +3937,15 @@ void InitElementPropertiesStatic()
     EL_EMC_WALL_6,
     EL_EMC_WALL_7,
     EL_EMC_WALL_8,
+    EL_EMC_WALL_9,
+    EL_EMC_WALL_10,
+    EL_EMC_WALL_11,
+    EL_EMC_WALL_12,
+    EL_EMC_WALL_13,
+    EL_EMC_WALL_14,
+    EL_EMC_WALL_15,
+    EL_EMC_WALL_16,
+
     -1
   };
 
@@ -3217,8 +3958,65 @@ void InitElementPropertiesStatic()
   {
     EL_SAND,
     EL_LANDMINE,
+    EL_DC_LANDMINE,
     EL_TRAP,
     EL_TRAP_ACTIVE,
+
+    -1
+  };
+
+  static int ep_editor_cascade_active[] =
+  {
+    EL_INTERNAL_CASCADE_BD_ACTIVE,
+    EL_INTERNAL_CASCADE_EM_ACTIVE,
+    EL_INTERNAL_CASCADE_EMC_ACTIVE,
+    EL_INTERNAL_CASCADE_RND_ACTIVE,
+    EL_INTERNAL_CASCADE_SB_ACTIVE,
+    EL_INTERNAL_CASCADE_SP_ACTIVE,
+    EL_INTERNAL_CASCADE_DC_ACTIVE,
+    EL_INTERNAL_CASCADE_DX_ACTIVE,
+    EL_INTERNAL_CASCADE_CHARS_ACTIVE,
+    EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
+    EL_INTERNAL_CASCADE_CE_ACTIVE,
+    EL_INTERNAL_CASCADE_GE_ACTIVE,
+    EL_INTERNAL_CASCADE_REF_ACTIVE,
+    EL_INTERNAL_CASCADE_USER_ACTIVE,
+    EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
+
+    -1
+  };
+
+  static int ep_editor_cascade_inactive[] =
+  {
+    EL_INTERNAL_CASCADE_BD,
+    EL_INTERNAL_CASCADE_EM,
+    EL_INTERNAL_CASCADE_EMC,
+    EL_INTERNAL_CASCADE_RND,
+    EL_INTERNAL_CASCADE_SB,
+    EL_INTERNAL_CASCADE_SP,
+    EL_INTERNAL_CASCADE_DC,
+    EL_INTERNAL_CASCADE_DX,
+    EL_INTERNAL_CASCADE_CHARS,
+    EL_INTERNAL_CASCADE_STEEL_CHARS,
+    EL_INTERNAL_CASCADE_CE,
+    EL_INTERNAL_CASCADE_GE,
+    EL_INTERNAL_CASCADE_REF,
+    EL_INTERNAL_CASCADE_USER,
+    EL_INTERNAL_CASCADE_DYNAMIC,
+
+    -1
+  };
+
+  static int ep_obsolete[] =
+  {
+    EL_PLAYER_OBSOLETE,
+    EL_KEY_OBSOLETE,
+    EL_EM_KEY_1_FILE_OBSOLETE,
+    EL_EM_KEY_2_FILE_OBSOLETE,
+    EL_EM_KEY_3_FILE_OBSOLETE,
+    EL_EM_KEY_4_FILE_OBSOLETE,
+    EL_ENVELOPE_OBSOLETE,
+
     -1
   };
 
@@ -3228,106 +4026,75 @@ void InitElementPropertiesStatic()
     int property;
   } element_properties[] =
   {
-    { ep_diggable,             EP_DIGGABLE             },
-    { ep_collectible_only,     EP_COLLECTIBLE_ONLY     },
-    { ep_dont_run_into,                EP_DONT_RUN_INTO        },
-    { ep_dont_collide_with,    EP_DONT_COLLIDE_WITH    },
-    { ep_dont_touch,           EP_DONT_TOUCH           },
-    { ep_indestructible,       EP_INDESTRUCTIBLE       },
-    { ep_slippery,             EP_SLIPPERY             },
-    { ep_can_change,           EP_CAN_CHANGE           },
-    { ep_can_move,             EP_CAN_MOVE             },
-    { ep_can_fall,             EP_CAN_FALL             },
-    { ep_can_smash_player,     EP_CAN_SMASH_PLAYER     },
-    { ep_can_smash_enemies,    EP_CAN_SMASH_ENEMIES    },
-    { ep_can_smash_everything, EP_CAN_SMASH_EVERYTHING },
-    { ep_explodes_by_fire,     EP_EXPLODES_BY_FIRE     },
-    { ep_explodes_smashed,     EP_EXPLODES_SMASHED     },
-    { ep_explodes_impact,      EP_EXPLODES_IMPACT      },
-    { ep_walkable_over,                EP_WALKABLE_OVER        },
-    { ep_walkable_inside,      EP_WALKABLE_INSIDE      },
-    { ep_walkable_under,       EP_WALKABLE_UNDER       },
-    { ep_passable_over,                EP_PASSABLE_OVER        },
-    { ep_passable_inside,      EP_PASSABLE_INSIDE      },
-    { ep_passable_under,       EP_PASSABLE_UNDER       },
-    { ep_droppable,            EP_DROPPABLE            },
-    { ep_explodes_1x1_old,     EP_EXPLODES_1X1_OLD     },
-    { ep_pushable,             EP_PUSHABLE             },
-    { ep_explodes_cross_old,   EP_EXPLODES_CROSS_OLD   },
-    { ep_protected,            EP_PROTECTED            },
-    { ep_throwable,            EP_THROWABLE            },
-    { ep_can_explode,          EP_CAN_EXPLODE          },
-    { ep_gravity_reachable,    EP_GRAVITY_REACHABLE    },
-
-    { ep_player,               EP_PLAYER               },
-    { ep_can_pass_magic_wall,  EP_CAN_PASS_MAGIC_WALL  },
-    { ep_switchable,           EP_SWITCHABLE           },
-    { ep_bd_element,           EP_BD_ELEMENT           },
-    { ep_sp_element,           EP_SP_ELEMENT           },
-    { ep_sb_element,           EP_SB_ELEMENT           },
-    { ep_gem,                  EP_GEM                  },
-    { ep_food_dark_yamyam,     EP_FOOD_DARK_YAMYAM     },
-    { ep_food_penguin,         EP_FOOD_PENGUIN         },
-    { ep_food_pig,             EP_FOOD_PIG             },
-    { ep_historic_wall,                EP_HISTORIC_WALL        },
-    { ep_historic_solid,       EP_HISTORIC_SOLID       },
-    { ep_classic_enemy,                EP_CLASSIC_ENEMY        },
-    { ep_belt,                 EP_BELT                 },
-    { ep_belt_active,          EP_BELT_ACTIVE          },
-    { ep_belt_switch,          EP_BELT_SWITCH          },
-    { ep_tube,                 EP_TUBE                 },
-    { ep_keygate,              EP_KEYGATE              },
-    { ep_amoeboid,             EP_AMOEBOID             },
-    { ep_amoebalive,           EP_AMOEBALIVE           },
-    { ep_has_content,          EP_HAS_CONTENT          },
-    { ep_can_turn_each_move,   EP_CAN_TURN_EACH_MOVE   },
-    { ep_can_grow,             EP_CAN_GROW             },
-    { ep_active_bomb,          EP_ACTIVE_BOMB          },
-    { ep_inactive,             EP_INACTIVE             },
-
-    { ep_em_slippery_wall,     EP_EM_SLIPPERY_WALL     },
-
-    { ep_gfx_crumbled,         EP_GFX_CRUMBLED         },
-
-    { NULL,                    -1                      }
-  };
-
-  static int copy_properties[][5] =
-  {
-    {
-      EL_BUG,
-      EL_BUG_LEFT,             EL_BUG_RIGHT,
-      EL_BUG_UP,               EL_BUG_DOWN
-    },
-    {
-      EL_SPACESHIP,
-      EL_SPACESHIP_LEFT,       EL_SPACESHIP_RIGHT,
-      EL_SPACESHIP_UP,         EL_SPACESHIP_DOWN
-    },
-    {
-      EL_BD_BUTTERFLY,
-      EL_BD_BUTTERFLY_LEFT,    EL_BD_BUTTERFLY_RIGHT,
-      EL_BD_BUTTERFLY_UP,      EL_BD_BUTTERFLY_DOWN
-    },
-    {
-      EL_BD_FIREFLY,
-      EL_BD_FIREFLY_LEFT,      EL_BD_FIREFLY_RIGHT,
-      EL_BD_FIREFLY_UP,                EL_BD_FIREFLY_DOWN
-    },
-    {
-      EL_PACMAN,
-      EL_PACMAN_LEFT,          EL_PACMAN_RIGHT,
-      EL_PACMAN_UP,            EL_PACMAN_DOWN
-    },
-    {
-      EL_MOLE,
-      EL_MOLE_LEFT,            EL_MOLE_RIGHT,
-      EL_MOLE_UP,              EL_MOLE_DOWN
-    },
-    {
-      -1,
-      -1, -1, -1, -1
-    }
+    { ep_diggable,                     EP_DIGGABLE                     },
+    { ep_collectible_only,             EP_COLLECTIBLE_ONLY             },
+    { ep_dont_run_into,                        EP_DONT_RUN_INTO                },
+    { ep_dont_collide_with,            EP_DONT_COLLIDE_WITH            },
+    { ep_dont_touch,                   EP_DONT_TOUCH                   },
+    { ep_indestructible,               EP_INDESTRUCTIBLE               },
+    { ep_slippery,                     EP_SLIPPERY                     },
+    { ep_can_change,                   EP_CAN_CHANGE                   },
+    { ep_can_move,                     EP_CAN_MOVE                     },
+    { ep_can_fall,                     EP_CAN_FALL                     },
+    { ep_can_smash_player,             EP_CAN_SMASH_PLAYER             },
+    { ep_can_smash_enemies,            EP_CAN_SMASH_ENEMIES            },
+    { ep_can_smash_everything,         EP_CAN_SMASH_EVERYTHING         },
+    { ep_explodes_by_fire,             EP_EXPLODES_BY_FIRE             },
+    { ep_explodes_smashed,             EP_EXPLODES_SMASHED             },
+    { ep_explodes_impact,              EP_EXPLODES_IMPACT              },
+    { ep_walkable_over,                        EP_WALKABLE_OVER                },
+    { ep_walkable_inside,              EP_WALKABLE_INSIDE              },
+    { ep_walkable_under,               EP_WALKABLE_UNDER               },
+    { ep_passable_over,                        EP_PASSABLE_OVER                },
+    { ep_passable_inside,              EP_PASSABLE_INSIDE              },
+    { ep_passable_under,               EP_PASSABLE_UNDER               },
+    { ep_droppable,                    EP_DROPPABLE                    },
+    { ep_explodes_1x1_old,             EP_EXPLODES_1X1_OLD             },
+    { ep_pushable,                     EP_PUSHABLE                     },
+    { ep_explodes_cross_old,           EP_EXPLODES_CROSS_OLD           },
+    { ep_protected,                    EP_PROTECTED                    },
+    { ep_throwable,                    EP_THROWABLE                    },
+    { ep_can_explode,                  EP_CAN_EXPLODE                  },
+    { ep_gravity_reachable,            EP_GRAVITY_REACHABLE            },
+
+    { ep_player,                       EP_PLAYER                       },
+    { ep_can_pass_magic_wall,          EP_CAN_PASS_MAGIC_WALL          },
+    { ep_can_pass_dc_magic_wall,       EP_CAN_PASS_DC_MAGIC_WALL       },
+    { ep_switchable,                   EP_SWITCHABLE                   },
+    { ep_bd_element,                   EP_BD_ELEMENT                   },
+    { ep_sp_element,                   EP_SP_ELEMENT                   },
+    { ep_sb_element,                   EP_SB_ELEMENT                   },
+    { ep_gem,                          EP_GEM                          },
+    { ep_food_dark_yamyam,             EP_FOOD_DARK_YAMYAM             },
+    { ep_food_penguin,                 EP_FOOD_PENGUIN                 },
+    { ep_food_pig,                     EP_FOOD_PIG                     },
+    { ep_historic_wall,                        EP_HISTORIC_WALL                },
+    { ep_historic_solid,               EP_HISTORIC_SOLID               },
+    { ep_classic_enemy,                        EP_CLASSIC_ENEMY                },
+    { ep_belt,                         EP_BELT                         },
+    { ep_belt_active,                  EP_BELT_ACTIVE                  },
+    { ep_belt_switch,                  EP_BELT_SWITCH                  },
+    { ep_tube,                         EP_TUBE                         },
+    { ep_acid_pool,                    EP_ACID_POOL                    },
+    { ep_keygate,                      EP_KEYGATE                      },
+    { ep_amoeboid,                     EP_AMOEBOID                     },
+    { ep_amoebalive,                   EP_AMOEBALIVE                   },
+    { ep_has_editor_content,           EP_HAS_EDITOR_CONTENT           },
+    { ep_can_turn_each_move,           EP_CAN_TURN_EACH_MOVE           },
+    { ep_can_grow,                     EP_CAN_GROW                     },
+    { ep_active_bomb,                  EP_ACTIVE_BOMB                  },
+    { ep_inactive,                     EP_INACTIVE                     },
+
+    { ep_em_slippery_wall,             EP_EM_SLIPPERY_WALL             },
+
+    { ep_gfx_crumbled,                 EP_GFX_CRUMBLED                 },
+
+    { ep_editor_cascade_active,                EP_EDITOR_CASCADE_ACTIVE        },
+    { ep_editor_cascade_inactive,      EP_EDITOR_CASCADE_INACTIVE      },
+
+    { ep_obsolete,                     EP_OBSOLETE                     },
+
+    { NULL,                            -1                              }
   };
 
   int i, j, k;
@@ -3349,42 +4116,14 @@ void InitElementPropertiesStatic()
       if (HAS_PROPERTY(copy_properties[j][0], i))
        for (k = 1; k <= 4; k++)
          SET_PROPERTY(copy_properties[j][k], i, TRUE);
+
+  /* set static element properties that are not listed in array definitions */
+  for (i = EL_STEEL_CHAR_START; i <= EL_STEEL_CHAR_END; i++)
+    SET_PROPERTY(i, EP_INDESTRUCTIBLE, TRUE);
 }
 
 void InitElementPropertiesEngine(int engine_version)
 {
-#if 0
-  static int active_properties[] =
-  {
-    EP_AMOEBALIVE,
-    EP_AMOEBOID,
-    EP_PFORTE,
-    EP_DONT_COLLIDE_WITH,
-    EP_MAUER,
-    EP_CAN_FALL,
-    EP_CAN_SMASH,
-    EP_CAN_PASS_MAGIC_WALL,
-    EP_CAN_MOVE,
-    EP_DONT_TOUCH,
-    EP_DONT_RUN_INTO,
-    EP_GEM,
-    EP_EXPLODES_BY_FIRE,
-    EP_PUSHABLE,
-    EP_PLAYER,
-    EP_HAS_CONTENT,
-    EP_DIGGABLE,
-    EP_PASSABLE_INSIDE,
-    EP_OVER_PLAYER,
-    EP_ACTIVE_BOMB,
-
-    EP_BELT,
-    EP_BELT_ACTIVE,
-    EP_BELT_SWITCH,
-    EP_WALKABLE_UNDER,
-    EP_EM_SLIPPERY_WALL,
-  };
-#endif
-
   static int no_wall_properties[] =
   {
     EP_DIGGABLE,
@@ -3416,26 +4155,24 @@ void InitElementPropertiesEngine(int engine_version)
 
   int i, j;
 
-#if 0
-  InitElementPropertiesStatic();
-#endif
-
   /* important: after initialization in InitElementPropertiesStatic(), the
      elements are not again initialized to a default value; therefore all
      changes have to make sure that they leave the element with a defined
      property (which means that conditional property changes must be set to
      a reliable default value before) */
 
+  /* resolve group elements */
+  for (i = 0; i < NUM_GROUP_ELEMENTS; i++)
+    ResolveGroupElement(EL_GROUP_START + i);
+
   /* set all special, combined or engine dependent element properties */
   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
   {
-#if 0
-    for (j = EP_ACCESSIBLE_OVER; j < NUM_ELEMENT_PROPERTIES; j++)
-      SET_PROPERTY(i, j, FALSE);
-#endif
-
     /* ---------- INACTIVE ------------------------------------------------- */
-    SET_PROPERTY(i, EP_INACTIVE, (i >= EL_CHAR_START && i <= EL_CHAR_END));
+    SET_PROPERTY(i, EP_INACTIVE, ((i >= EL_CHAR_START &&
+                                  i <= EL_CHAR_END) ||
+                                 (i >= EL_STEEL_CHAR_START &&
+                                  i <= EL_STEEL_CHAR_END)));
 
     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
@@ -3488,14 +4225,7 @@ void InitElementPropertiesEngine(int engine_version)
                                             !IS_DIGGABLE(i) &&
                                             !IS_COLLECTIBLE(i)));
 
-#if 0
-    /* ---------- PROTECTED ------------------------------------------------ */
-    if (IS_ACCESSIBLE_INSIDE(i))
-      SET_PROPERTY(i, EP_PROTECTED, TRUE);
-#endif
-
     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
-
     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
     else
@@ -3508,20 +4238,9 @@ void InitElementPropertiesEngine(int engine_version)
     else if (engine_version < VERSION_IDENT(2,2,0,0))
       SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
     else
-#if 1
       SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
                                           (!IS_WALKABLE(i) ||
                                            IS_PROTECTED(i))));
-#else
-#if 1
-      SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
-                                          !IS_WALKABLE_OVER(i) &&
-                                          !IS_WALKABLE_UNDER(i)));
-#else
-      SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
-                                          IS_PROTECTED(i)));
-#endif
-#endif
 
     if (IS_CUSTOM_ELEMENT(i))
     {
@@ -3545,25 +4264,6 @@ void InitElementPropertiesEngine(int engine_version)
                                   CAN_SMASH_ENEMIES(i) ||
                                   CAN_SMASH_EVERYTHING(i)));
 
-#if 0
-    /* ---------- CAN_EXPLODE ---------------------------------------------- */
-    SET_PROPERTY(i, EP_CAN_EXPLODE, (CAN_EXPLODE_BY_FIRE(i) ||
-                                    CAN_EXPLODE_SMASHED(i) ||
-                                    CAN_EXPLODE_IMPACT(i)));
-#endif
-
-#if 0
-    /* ---------- CAN_EXPLODE_3X3 ------------------------------------------ */
-#if 0
-    SET_PROPERTY(i, EP_CAN_EXPLODE_3X3, (!CAN_EXPLODE_1X1(i) &&
-                                        !CAN_EXPLODE_CROSS(i)));
-#else
-    SET_PROPERTY(i, EP_CAN_EXPLODE_3X3, (CAN_EXPLODE(i) &&
-                                        !CAN_EXPLODE_1X1(i) &&
-                                        !CAN_EXPLODE_CROSS(i)));
-#endif
-#endif
-
     /* ---------- CAN_EXPLODE_BY_FIRE -------------------------------------- */
     SET_PROPERTY(i, EP_CAN_EXPLODE_BY_FIRE, (CAN_EXPLODE(i) &&
                                             EXPLODES_BY_FIRE(i)));
@@ -3606,46 +4306,58 @@ void InitElementPropertiesEngine(int engine_version)
     SET_PROPERTY(i, EP_SP_PORT, (IS_SP_ELEMENT(i) &&
                                 IS_PASSABLE_INSIDE(i)));
 
+    /* ---------- CAN_BE_CLONED_BY_ANDROID --------------------------------- */
+    for (j = 0; j < level.num_android_clone_elements; j++)
+      SET_PROPERTY(i, EP_CAN_BE_CLONED_BY_ANDROID,
+                  (i != EL_EMPTY &&
+                   IS_EQUAL_OR_IN_GROUP(i, level.android_clone_element[j])));
+
     /* ---------- CAN_CHANGE ----------------------------------------------- */
     SET_PROPERTY(i, EP_CAN_CHANGE, FALSE);     /* default: cannot change */
     for (j = 0; j < element_info[i].num_change_pages; j++)
       if (element_info[i].change_page[j].can_change)
        SET_PROPERTY(i, EP_CAN_CHANGE, TRUE);
 
+    /* ---------- HAS_ACTION ----------------------------------------------- */
+    SET_PROPERTY(i, EP_HAS_ACTION, FALSE);     /* default: has no action */
+    for (j = 0; j < element_info[i].num_change_pages; j++)
+      if (element_info[i].change_page[j].has_action)
+       SET_PROPERTY(i, EP_HAS_ACTION, TRUE);
+
+    /* ---------- CAN_CHANGE_OR_HAS_ACTION --------------------------------- */
+    SET_PROPERTY(i, EP_CAN_CHANGE_OR_HAS_ACTION, (CAN_CHANGE(i) ||
+                                                 HAS_ACTION(i)));
+
     /* ---------- GFX_CRUMBLED --------------------------------------------- */
+#if 1
+    SET_PROPERTY(i, EP_GFX_CRUMBLED,
+                element_info[i].crumbled[ACTION_DEFAULT] !=
+                element_info[i].graphic[ACTION_DEFAULT]);
+#else
+    /* !!! THIS LOOKS CRAPPY FOR SAND ETC. WITHOUT CRUMBLED GRAPHICS !!! */
     SET_PROPERTY(i, EP_GFX_CRUMBLED,
                 element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
-  }
-
-#if 0
-  /* determine inactive elements (used for engine main loop optimization) */
-  for (i = 0; i < MAX_NUM_ELEMENTS; i++)
-  {
-    boolean active = FALSE;
-
-    for (j = 0; i < NUM_ELEMENT_PROPERTIES; j++)
-    {
-      if (HAS_PROPERTY(i, j))
-       active = TRUE;
-    }
-
-#if 0
-    if (!active)
-      SET_PROPERTY(i, EP_INACTIVE, TRUE);
 #endif
+
+    /* ---------- EDITOR_CASCADE ------------------------------------------- */
+    SET_PROPERTY(i, EP_EDITOR_CASCADE, (IS_EDITOR_CASCADE_ACTIVE(i) ||
+                                       IS_EDITOR_CASCADE_INACTIVE(i)));
   }
-#endif
 
   /* dynamically adjust element properties according to game engine version */
   {
     static int ep_em_slippery_wall[] =
     {
-      EL_STEELWALL,
       EL_WALL,
+      EL_STEELWALL,
       EL_EXPANDABLE_WALL,
       EL_EXPANDABLE_WALL_HORIZONTAL,
       EL_EXPANDABLE_WALL_VERTICAL,
       EL_EXPANDABLE_WALL_ANY,
+      EL_EXPANDABLE_STEELWALL_HORIZONTAL,
+      EL_EXPANDABLE_STEELWALL_VERTICAL,
+      EL_EXPANDABLE_STEELWALL_ANY,
+      EL_EXPANDABLE_STEELWALL_GROWING,
       -1
     };
 
@@ -3660,29 +4372,14 @@ void InitElementPropertiesEngine(int engine_version)
                  engine_version > VERSION_IDENT(2,0,1,0)));
   }
 
-#if 1
-  /* set default push delay values (corrected since version 3.0.7-1) */
-  if (engine_version < VERSION_IDENT(3,0,7,1))
-  {
-    game.default_push_delay_fixed = 2;
-    game.default_push_delay_random = 8;
-  }
-  else
-  {
-    game.default_push_delay_fixed = 8;
-    game.default_push_delay_random = 8;
-  }
-
-  /* set uninitialized push delay values of custom elements in older levels */
-  for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
-  {
-    int element = EL_CUSTOM_START + i;
+  /* this is needed because some graphics depend on element properties */
+  if (game_status == GAME_MODE_PLAYING)
+    InitElementGraphicInfo();
+}
 
-    if (element_info[element].push_delay_fixed == -1)
-      element_info[element].push_delay_fixed = game.default_push_delay_fixed;
-    if (element_info[element].push_delay_random == -1)
-      element_info[element].push_delay_random = game.default_push_delay_random;
-  }
+void InitElementPropertiesAfterLoading(int engine_version)
+{
+  int i;
 
   /* set some other uninitialized values of custom elements in older levels */
   if (engine_version < VERSION_IDENT(3,1,0,0))
@@ -3697,21 +4394,6 @@ void InitElementPropertiesEngine(int engine_version)
       element_info[element].ignition_delay = 8;
     }
   }
-
-#if 0
-  /* set element properties that were handled incorrectly in older levels */
-  if (engine_version < VERSION_IDENT(3,1,0,0))
-  {
-    SET_PROPERTY(EL_SP_SNIKSNAK, EP_DONT_COLLIDE_WITH, FALSE);
-    SET_PROPERTY(EL_SP_ELECTRON, EP_DONT_COLLIDE_WITH, FALSE);
-  }
-#endif
-
-#endif
-
-  /* this is needed because some graphics depend on element properties */
-  if (game_status == GAME_MODE_PLAYING)
-    InitElementGraphicInfo();
 }
 
 static void InitGlobal()
@@ -3726,7 +4408,50 @@ static void InitGlobal()
 
     element_info[i].token_name = element_name_info[i].token_name;
     element_info[i].class_name = element_name_info[i].class_name;
-    element_info[i].editor_description=element_name_info[i].editor_description;
+    element_info[i].editor_description= element_name_info[i].editor_description;
+
+#if 0
+    printf("%04d: %s\n", i, element_name_info[i].token_name);
+#endif
+  }
+
+  /* always start with reliable default values (all elements) */
+  for (i = 0; i < MAX_NUM_ELEMENTS; i++)
+    ActiveElement[i] = i;
+
+  /* now add all entries that have an active state (active elements) */
+  for (i = 0; element_with_active_state[i].element != -1; i++)
+  {
+    int element = element_with_active_state[i].element;
+    int element_active = element_with_active_state[i].element_active;
+
+    ActiveElement[element] = element_active;
+  }
+
+  /* always start with reliable default values (all buttons) */
+  for (i = 0; i < NUM_IMAGE_FILES; i++)
+    ActiveButton[i] = i;
+
+  /* now add all entries that have an active state (active buttons) */
+  for (i = 0; button_with_active_state[i].button != -1; i++)
+  {
+    int button = button_with_active_state[i].button;
+    int button_active = button_with_active_state[i].button_active;
+
+    ActiveButton[button] = button_active;
+  }
+
+  /* always start with reliable default values (all fonts) */
+  for (i = 0; i < NUM_FONTS; i++)
+    ActiveFont[i] = i;
+
+  /* now add all entries that have an active state (active fonts) */
+  for (i = 0; font_with_active_state[i].font_nr != -1; i++)
+  {
+    int font = font_with_active_state[i].font_nr;
+    int font_active = font_with_active_state[i].font_nr_active;
+
+    ActiveFont[font] = font_active;
   }
 
   global.autoplay_leveldir = NULL;
@@ -3735,13 +4460,19 @@ static void InitGlobal()
   global.frames_per_second = 0;
   global.fps_slowdown = FALSE;
   global.fps_slowdown_factor = 1;
+
+  global.border_status = GAME_MODE_MAIN;
+#if 0
+  global.fading_status = GAME_MODE_MAIN;
+  global.fading_type = TYPE_ENTER_MENU;
+#endif
 }
 
 void Execute_Command(char *command)
 {
   int i;
 
-  if (strcmp(command, "print graphicsinfo.conf") == 0)
+  if (strEqual(command, "print graphicsinfo.conf"))
   {
     printf("# You can configure additional/alternative image files here.\n");
     printf("# (The entries below are default and therefore commented out.)\n");
@@ -3757,7 +4488,7 @@ void Execute_Command(char *command)
 
     exit(0);
   }
-  else if (strcmp(command, "print soundsinfo.conf") == 0)
+  else if (strEqual(command, "print soundsinfo.conf"))
   {
     printf("# You can configure additional/alternative sound files here.\n");
     printf("# (The entries below are default and therefore commented out.)\n");
@@ -3773,7 +4504,7 @@ void Execute_Command(char *command)
 
     exit(0);
   }
-  else if (strcmp(command, "print musicinfo.conf") == 0)
+  else if (strEqual(command, "print musicinfo.conf"))
   {
     printf("# You can configure additional/alternative music files here.\n");
     printf("# (The entries below are default and therefore commented out.)\n");
@@ -3789,17 +4520,21 @@ void Execute_Command(char *command)
 
     exit(0);
   }
-  else if (strcmp(command, "print editorsetup.conf") == 0)
+  else if (strEqual(command, "print editorsetup.conf"))
   {
     printf("# You can configure your personal editor element list here.\n");
     printf("# (The entries below are default and therefore commented out.)\n");
     printf("\n");
 
+    /* this is needed to be able to check element list for cascade elements */
+    InitElementPropertiesStatic();
+    InitElementPropertiesEngine(GAME_VERSION_ACTUAL);
+
     PrintEditorElementList();
 
     exit(0);
   }
-  else if (strcmp(command, "print helpanim.conf") == 0)
+  else if (strEqual(command, "print helpanim.conf"))
   {
     printf("# You can configure different element help animations here.\n");
     printf("# (The entries below are default and therefore commented out.)\n");
@@ -3810,13 +4545,13 @@ void Execute_Command(char *command)
       printf("# %s\n", getFormattedSetupEntry(helpanim_config[i].token,
                                              helpanim_config[i].value));
 
-      if (strcmp(helpanim_config[i].token, "end") == 0)
+      if (strEqual(helpanim_config[i].token, "end"))
        printf("#\n");
     }
 
     exit(0);
   }
-  else if (strcmp(command, "print helptext.conf") == 0)
+  else if (strEqual(command, "print helptext.conf"))
   {
     printf("# You can configure different element help text here.\n");
     printf("# (The entries below are default and therefore commented out.)\n");
@@ -3832,7 +4567,7 @@ void Execute_Command(char *command)
   {
     char *filename = &command[11];
 
-    if (access(filename, F_OK) != 0)
+    if (!fileExists(filename))
       Error(ERR_EXIT, "cannot open file '%s'", filename);
 
     LoadLevelFromFilename(&level, filename);
@@ -3844,7 +4579,7 @@ void Execute_Command(char *command)
   {
     char *filename = &command[10];
 
-    if (access(filename, F_OK) != 0)
+    if (!fileExists(filename))
       Error(ERR_EXIT, "cannot open file '%s'", filename);
 
     LoadTapeFromFilename(filename);
@@ -3854,16 +4589,38 @@ void Execute_Command(char *command)
   }
   else if (strncmp(command, "autoplay ", 9) == 0)
   {
-    char *str_copy = getStringCopy(&command[9]);
-    char *str_ptr = strchr(str_copy, ' ');
-
-    global.autoplay_leveldir = str_copy;
-    global.autoplay_level_nr = -1;
+    char *str_ptr = getStringCopy(&command[9]);        /* read command parameters */
 
-    if (str_ptr != NULL)
+    while (*str_ptr != '\0')                   /* continue parsing string */
     {
-      *str_ptr++ = '\0';                       /* terminate leveldir string */
-      global.autoplay_level_nr = atoi(str_ptr);        /* get level_nr value */
+      /* cut leading whitespace from string, replace it by string terminator */
+      while (*str_ptr == ' ' || *str_ptr == '\t')
+       *str_ptr++ = '\0';
+
+      if (*str_ptr == '\0')                    /* end of string reached */
+       break;
+
+      if (global.autoplay_leveldir == NULL)    /* read level set string */
+      {
+       global.autoplay_leveldir = str_ptr;
+       global.autoplay_all = TRUE;             /* default: play all tapes */
+
+       for (i = 0; i < MAX_TAPES_PER_SET; i++)
+         global.autoplay_level[i] = FALSE;
+      }
+      else                                     /* read level number string */
+      {
+       int level_nr = atoi(str_ptr);           /* get level_nr value */
+
+       if (level_nr >= 0 && level_nr < MAX_TAPES_PER_SET)
+         global.autoplay_level[level_nr] = TRUE;
+
+       global.autoplay_all = FALSE;
+      }
+
+      /* advance string pointer to the next whitespace (or end of string) */
+      while (*str_ptr != ' ' && *str_ptr != '\t' && *str_ptr != '\0')
+       str_ptr++;
     }
   }
   else if (strncmp(command, "convert ", 8) == 0)
@@ -3874,12 +4631,51 @@ void Execute_Command(char *command)
     global.convert_leveldir = str_copy;
     global.convert_level_nr = -1;
 
-    if (str_ptr != NULL)
+    if (str_ptr != NULL)                       /* level number follows */
     {
       *str_ptr++ = '\0';                       /* terminate leveldir string */
       global.convert_level_nr = atoi(str_ptr); /* get level_nr value */
     }
   }
+
+#if DEBUG
+#if defined(TARGET_SDL)
+  else if (strEqual(command, "SDL_ListModes"))
+  {
+    SDL_Rect **modes;
+    int i;
+
+    SDL_Init(SDL_INIT_VIDEO);
+
+    /* get available fullscreen/hardware modes */
+    modes = SDL_ListModes(NULL, SDL_FULLSCREEN | SDL_HWSURFACE);
+
+    /* check if there are any modes available */
+    if (modes == NULL)
+    {
+      printf("No modes available!\n");
+
+      exit(-1);
+    }
+
+    /* check if our resolution is restricted */
+    if (modes == (SDL_Rect **)-1)
+    {
+      printf("All resolutions available.\n");
+    }
+    else
+    {
+      printf("Available Modes:\n");
+
+      for(i = 0; modes[i]; i++)
+       printf("  %d x %d\n", modes[i]->w, modes[i]->h);
+    }
+
+    exit(0);
+  }
+#endif
+#endif
+
   else
   {
     Error(ERR_EXIT_HELP, "unrecognized command '%s'", command);
@@ -3896,6 +4692,11 @@ static void InitSetup()
     options.verbose = TRUE;
 }
 
+static void InitGameInfo()
+{
+  game.restart_level = FALSE;
+}
+
 static void InitPlayerInfo()
 {
   int i;
@@ -3963,7 +4764,7 @@ static void InitArtworkConfig()
   static char *sound_id_prefix[2 * MAX_NUM_ELEMENTS + 1];
   static char *music_id_prefix[NUM_MUSIC_PREFIXES + 1];
   static char *action_id_suffix[NUM_ACTIONS + 1];
-  static char *direction_id_suffix[NUM_DIRECTIONS + 1];
+  static char *direction_id_suffix[NUM_DIRECTIONS_FULL + 1];
   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
   static char *level_id_suffix[MAX_LEVELS + 1];
   static char *dummy[1] = { NULL };
@@ -4031,15 +4832,15 @@ static void InitArtworkConfig()
 
   for (i = 0; i < NUM_MUSIC_PREFIXES; i++)
     music_id_prefix[i] = music_prefix_info[i].prefix;
-  music_id_prefix[MAX_LEVELS] = NULL;
+  music_id_prefix[NUM_MUSIC_PREFIXES] = NULL;
 
   for (i = 0; i < NUM_ACTIONS; i++)
     action_id_suffix[i] = element_action_info[i].suffix;
   action_id_suffix[NUM_ACTIONS] = NULL;
 
-  for (i = 0; i < NUM_DIRECTIONS; i++)
+  for (i = 0; i < NUM_DIRECTIONS_FULL; i++)
     direction_id_suffix[i] = element_direction_info[i].suffix;
-  direction_id_suffix[NUM_DIRECTIONS] = NULL;
+  direction_id_suffix[NUM_DIRECTIONS_FULL] = NULL;
 
   for (i = 0; i < NUM_SPECIAL_GFX_ARGS; i++)
     special_id_suffix[i] = special_suffix_info[i].suffix;
@@ -4070,6 +4871,7 @@ void InitGfx()
 {
   char *filename_font_initial = NULL;
   Bitmap *bitmap_font_initial = NULL;
+  int font_height;
   int i, j;
 
   /* determine settings for initial font (for displaying startup messages) */
@@ -4083,18 +4885,18 @@ void InitGfx()
       sprintf(font_token, "%s_%d", CONFIG_TOKEN_FONT_INITIAL, j + 1);
       len_font_token = strlen(font_token);
 
-      if (strcmp(image_config[i].token, font_token) == 0)
+      if (strEqual(image_config[i].token, font_token))
        filename_font_initial = image_config[i].value;
       else if (strlen(image_config[i].token) > len_font_token &&
               strncmp(image_config[i].token, font_token, len_font_token) == 0)
       {
-       if (strcmp(&image_config[i].token[len_font_token], ".x") == 0)
+       if (strEqual(&image_config[i].token[len_font_token], ".x"))
          font_initial[j].src_x = atoi(image_config[i].value);
-       else if (strcmp(&image_config[i].token[len_font_token], ".y") == 0)
+       else if (strEqual(&image_config[i].token[len_font_token], ".y"))
          font_initial[j].src_y = atoi(image_config[i].value);
-       else if (strcmp(&image_config[i].token[len_font_token], ".width") == 0)
+       else if (strEqual(&image_config[i].token[len_font_token], ".width"))
          font_initial[j].width = atoi(image_config[i].value);
-       else if (strcmp(&image_config[i].token[len_font_token],".height") == 0)
+       else if (strEqual(&image_config[i].token[len_font_token],".height"))
          font_initial[j].height = atoi(image_config[i].value);
       }
     }
@@ -4109,8 +4911,10 @@ void InitGfx()
   if (filename_font_initial == NULL)   /* should not happen */
     Error(ERR_EXIT, "cannot get filename for '%s'", CONFIG_TOKEN_FONT_INITIAL);
 
-  /* create additional image buffers for double-buffering */
+  /* create additional image buffers for double-buffering and cross-fading */
+  bitmap_db_cross = CreateBitmap(WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH);
   bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
+  bitmap_db_panel = CreateBitmap(DXSIZE, DYSIZE, DEFAULT_DEPTH);
   bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
 
   /* initialize screen properties */
@@ -4128,26 +4932,42 @@ void InitGfx()
 
   InitFontGraphicInfo();
 
+  font_height = getFontHeight(FC_RED);
+
+#if 1
+  DrawInitText(getWindowTitleString(), 20, FC_YELLOW);
+#else
   DrawInitText(getProgramInitString(), 20, FC_YELLOW);
+#endif
   DrawInitText(PROGRAM_COPYRIGHT_STRING, 50, FC_RED);
+  DrawInitText(PROGRAM_WEBSITE_STRING, WIN_YSIZE - 20 - font_height, FC_RED);
 
-  DrawInitText("Loading graphics:", 120, FC_GREEN);
+  DrawInitText("Loading graphics", 120, FC_GREEN);
+}
+
+void RedrawBackground()
+{
+  BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
+            0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
 
-  InitTileClipmasks();
+  redraw_mask = REDRAW_ALL;
 }
 
 void InitGfxBackground()
 {
   int x, y;
 
-  drawto = backbuffer;
   fieldbuffer = bitmap_db_field;
   SetDrawtoField(DRAW_BACKBUFFER);
 
-  BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, backbuffer,
-            0, 0, WIN_XSIZE, WIN_YSIZE, 0, 0);
+#if 1
+  ClearRectangle(backbuffer, 0, 0, WIN_XSIZE, WIN_YSIZE);
+#else
+  RedrawBackground();
+
   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
+#endif
 
   for (x = 0; x < MAX_BUF_XSIZE; x++)
     for (y = 0; y < MAX_BUF_YSIZE; y++)
@@ -4170,9 +4990,7 @@ void InitLevelArtworkInfo()
 
 static void InitImages()
 {
-#if 1
   setLevelArtworkDir(artwork.gfx_first);
-#endif
 
 #if 0
   printf("::: InitImages for '%s' ['%s', '%s'] ['%s', '%s']\n",
@@ -4196,10 +5014,8 @@ static void InitSound(char *identifier)
   if (identifier == NULL)
     identifier = artwork.snd_current->identifier;
 
-#if 1
   /* set artwork path to send it to the sound server process */
   setLevelArtworkDir(artwork.snd_first);
-#endif
 
   InitReloadCustomSounds(identifier);
   ReinitializeSounds();
@@ -4210,10 +5026,8 @@ static void InitMusic(char *identifier)
   if (identifier == NULL)
     identifier = artwork.mus_current->identifier;
 
-#if 1
   /* set artwork path to send it to the sound server process */
   setLevelArtworkDir(artwork.mus_first);
-#endif
 
   InitReloadCustomMusic(identifier);
   ReinitializeMusic();
@@ -4322,11 +5136,11 @@ static char *getNewArtworkIdentifier(int type)
 #endif
 
   /* ---------- reload if current artwork identifier has changed ----------- */
-  if (strcmp(ARTWORK_CURRENT_IDENTIFIER(artwork, type),
-            artwork_current_identifier) != 0)
+  if (!strEqual(ARTWORK_CURRENT_IDENTIFIER(artwork, type),
+               artwork_current_identifier))
     artwork_new_identifier = artwork_current_identifier;
 
-  *(&(ARTWORK_CURRENT_IDENTIFIER(artwork, type))) = artwork_current_identifier;
+  *(ARTWORK_CURRENT_IDENTIFIER_PTR(artwork, type))= artwork_current_identifier;
 
 #if 0
   if (type == ARTWORK_TYPE_GRAPHICS)
@@ -4357,14 +5171,20 @@ static char *getNewArtworkIdentifier(int type)
 
 void ReloadCustomArtwork(int force_reload)
 {
-  char *gfx_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_GRAPHICS);
-  char *snd_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_SOUNDS);
-  char *mus_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_MUSIC);
+  char *gfx_new_identifier;
+  char *snd_new_identifier;
+  char *mus_new_identifier;
   boolean force_reload_gfx = (force_reload & (1 << ARTWORK_TYPE_GRAPHICS));
   boolean force_reload_snd = (force_reload & (1 << ARTWORK_TYPE_SOUNDS));
   boolean force_reload_mus = (force_reload & (1 << ARTWORK_TYPE_MUSIC));
   boolean redraw_screen = FALSE;
 
+  force_reload_gfx |= AdjustGraphicsForEMC();
+
+  gfx_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_GRAPHICS);
+  snd_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_SOUNDS);
+  mus_new_identifier = getNewArtworkIdentifier(ARTWORK_TYPE_MUSIC);
+
   if (gfx_new_identifier != NULL || force_reload_gfx)
   {
 #if 0
@@ -4379,14 +5199,6 @@ void ReloadCustomArtwork(int force_reload)
 
     InitImages();
 
-#if 0
-    printf("... '%s'\n",
-          leveldir_current->graphics_set);
-#endif
-
-    FreeTileClipmasks();
-    InitTileClipmasks();
-
     redraw_screen = TRUE;
   }
 
@@ -4410,11 +5222,23 @@ void ReloadCustomArtwork(int force_reload)
 
   if (redraw_screen)
   {
-    InitGfxBackground();
+    RedrawBackground();
 
     /* force redraw of (open or closed) door graphics */
     SetDoorState(DOOR_OPEN_ALL);
     CloseDoor(DOOR_CLOSE_ALL | DOOR_NO_DELAY);
+
+#if 1
+#if 1
+    FadeSetEnterScreen();
+    // FadeSkipNextFadeOut();
+    // FadeSetDisabled();
+#else
+    FadeSkipNext();
+#endif
+#else
+    fading = fading_none;
+#endif
   }
 }
 
@@ -4431,7 +5255,7 @@ void KeyboardAutoRepeatOffUnlessAutoplay()
 
 void OpenAll()
 {
-  InitGlobal();                /* initialize some global variables */
+  InitGlobal();                        /* initialize some global variables */
 
   if (options.execute_command)
     Execute_Command(options.execute_command);
@@ -4443,11 +5267,13 @@ void OpenAll()
 #else
     Error(ERR_WARN, "networking only supported in Unix version");
 #endif
-    exit(0);   /* never reached */
+
+    exit(0);                   /* never reached, server loops forever */
   }
 
   InitSetup();
 
+  InitGameInfo();
   InitPlayerInfo();
   InitArtworkInfo();           /* needed before loading gfx, sound & music */
   InitArtworkConfig();         /* needed before forking sound child process */
@@ -4456,13 +5282,12 @@ void OpenAll()
   InitCounter();
 
   InitRND(NEW_RANDOMIZE);
-  InitSimpleRND(NEW_RANDOMIZE);
+  InitSimpleRandom(NEW_RANDOMIZE);
 
   InitJoysticks();
 
   InitVideoDisplay();
-  InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
-                 setup.fullscreen);
+  InitVideoBuffer(WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH, setup.fullscreen);
 
   InitEventFilter(FilterMouseMotionEvents);
 
@@ -4471,8 +5296,11 @@ void OpenAll()
 
   InitGfx();
 
+  // debug_print_timestamp(0, "INIT");
   InitLevelInfo();
+  // debug_print_timestamp(0, "TIME InitLevelInfo:        ");
   InitLevelArtworkInfo();
+  // debug_print_timestamp(0, "TIME InitLevelArtworkInfo: ");
 
   InitImages();                        /* needs to know current level directory */
   InitSound(NULL);             /* needs to know current level directory */
@@ -4480,6 +5308,10 @@ void OpenAll()
 
   InitGfxBackground();
 
+#if 1
+  em_open_all();
+#endif
+
   if (global.autoplay_leveldir)
   {
     AutoPlayTape();
@@ -4494,7 +5326,12 @@ void OpenAll()
   game_status = GAME_MODE_MAIN;
 
 #if 1
-  em_open_all();
+  FadeSetEnterScreen();
+  if (!(fading.fade_mode & FADE_TYPE_TRANSFORM))
+    FadeSkipNextFadeOut();
+  // FadeSetDisabled();
+#else
+  fading = fading_none;
 #endif
 
   DrawMainMenu();
@@ -4514,7 +5351,6 @@ void CloseAllAndExit(int exit_value)
 #endif
 
   FreeAllImages();
-  FreeTileClipmasks();
 
 #if defined(TARGET_SDL)
   if (network_server)  /* terminate network server */
@@ -4524,5 +5360,8 @@ void CloseAllAndExit(int exit_value)
   CloseVideoDisplay();
   ClosePlatformDependentStuff();
 
+  if (exit_value != 0)
+    NotifyUserAboutErrorFile();
+
   exit(exit_value);
 }