rnd-20070420-2-src
[rocksndiamonds.git] / src / init.c
index d228ea5064a6340cfb7183da8b60f57b73bb681d..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                            *
@@ -32,6 +32,7 @@
 #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"
@@ -66,6 +67,11 @@ static int copy_properties[][5] =
     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,
@@ -99,6 +105,8 @@ void InitGadgets()
   CreateToolButtons();
   CreateScreenGadgets();
 
+  InitGadgetsSoundCallback(PlaySoundActivating, PlaySoundSelecting);
+
   gadgets_initialized = TRUE;
 }
 
@@ -138,6 +146,15 @@ void InitElementSmallImages()
     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
 /* !!! FIX THIS (CHANGE TO USING NORMAL ELEMENT GRAPHIC DEFINITIONS) !!! */
 void SetBitmaps_EM(Bitmap **em_bitmap)
@@ -151,12 +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];
@@ -164,6 +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;
@@ -174,7 +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;
   }
@@ -216,18 +250,21 @@ void InitFontGraphicInfo()
     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 */
-      if (base_redefined && !special_redefined)
+      /* 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;
@@ -236,7 +273,7 @@ void InitFontGraphicInfo()
     }
   }
 
-  /* 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;
@@ -246,7 +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;
@@ -254,6 +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)
@@ -281,7 +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 */
@@ -290,8 +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;
@@ -300,7 +427,8 @@ void InitFontGraphicInfo()
     }
   }
 
-  InitFontInfo(font_bitmap_info, num_font_bitmaps, getFontBitmapID);
+  InitFontInfo(font_bitmap_info, num_font_bitmaps,
+              getFontBitmapID, getFontFromToken);
 }
 
 void InitElementGraphicInfo()
@@ -386,6 +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;
@@ -712,6 +850,8 @@ void InitElementGraphicInfo()
     }
   }
 
+#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++)
   {
@@ -737,6 +877,7 @@ void InitElementGraphicInfo()
       }
     }
   }
+#endif
 
 #if 0
 #if DEBUG
@@ -745,7 +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
@@ -776,6 +917,15 @@ void InitElementSpecialGraphicInfo()
     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
        use an existing (in this case considered obsolete) special graphic
@@ -789,14 +939,58 @@ 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;
   }
 
@@ -816,12 +1010,12 @@ static int get_graphic_parameter_value(char *value_raw, char *suffix, int type)
   if (type != TYPE_TOKEN)
     return get_parameter_value(value_raw, suffix, type);
 
-  if (strcmp(value_raw, ARG_UNDEFINED) == 0)
+  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, value_raw) == 0)
+    if (strEqual(element_info[i].token_name, value_raw))
       return i;
 
   /* !!! OPTIMIZE THIS BY USING HASH !!! */
@@ -829,12 +1023,12 @@ static int get_graphic_parameter_value(char *value_raw, char *suffix, int type)
   {
     int len_config_value = strlen(image_config[i].value);
 
-    if (strcmp(&image_config[i].value[len_config_value - 4], ".pcx") != 0 &&
-       strcmp(&image_config[i].value[len_config_value - 4], ".wav") != 0 &&
-       strcmp(image_config[i].value, UNDEFINED_FILENAME) != 0)
+    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 (strcmp(image_config[i].token, value_raw) == 0)
+    if (strEqual(image_config[i].token, value_raw))
       return x;
 
     x++;
@@ -881,13 +1075,13 @@ static void set_graphic_parameters(int graphic)
 
   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 ... */
@@ -902,6 +1096,30 @@ static void set_graphic_parameters(int graphic)
   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)
@@ -921,11 +1139,13 @@ static void set_graphic_parameters(int graphic)
   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)
   {
@@ -998,6 +1218,9 @@ static void set_graphic_parameters(int graphic)
   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);
@@ -1055,8 +1278,8 @@ static void set_graphic_parameters(int graphic)
   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];
@@ -1064,6 +1287,22 @@ static void set_graphic_parameters(int graphic)
   /* 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)
@@ -1083,18 +1322,18 @@ static void set_cloned_graphic_parameters(int graphic)
 
   if (num_references_followed >= max_num_images)
   {
-    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(graphic));
-    Error(ERR_RETURN, "error: loop discovered when resolving cloned graphics");
-    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(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_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, "-");
 
     graphic_info[graphic] = graphic_info[fallback_graphic];
   }
@@ -1119,10 +1358,61 @@ 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 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)
   if (clipmasks_initialized)
   {
@@ -1152,6 +1442,7 @@ static void InitGraphicInfo()
   {
     Bitmap *src_bitmap;
     int src_x, src_y;
+    int width, height;
     int first_frame, last_frame;
     int src_bitmap_width, src_bitmap_height;
 
@@ -1160,6 +1451,10 @@ static void InitGraphicInfo()
     if (graphic_info[i].bitmap == NULL)
       continue;                /* skip check for optional images that are undefined */
 
+    /* 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;
@@ -1169,25 +1464,31 @@ static void InitGraphicInfo()
     first_frame = 0;
     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
 
+#if 1
+    /* 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 + 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(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_RETURN, "custom graphic rejected for this element/action");
+      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, "-");
 
       graphic_info[i] = graphic_info[fallback_graphic];
     }
@@ -1198,24 +1499,24 @@ static void InitGraphicInfo()
     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(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_RETURN, "custom graphic rejected for this element/action");
+      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, "-");
 
       graphic_info[i] = graphic_info[fallback_graphic];
     }
@@ -1282,8 +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;
   }
 
@@ -1301,8 +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;
   }
 
@@ -1419,7 +1720,7 @@ 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()
@@ -1457,8 +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;
@@ -1636,7 +1937,8 @@ 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 */
@@ -1703,6 +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       },
@@ -1789,8 +2095,7 @@ boolean getBitfieldProperty(int *bitfield, int property_bit_nr, int element)
   return FALSE;
 }
 
-#if 1
-static void resolve_group_element(int group_element, int recursion_depth)
+static void ResolveGroupElementExt(int group_element, int recursion_depth)
 {
   static int group_nr;
   static struct ElementGroupInfo *group;
@@ -1814,10 +2119,13 @@ static void resolve_group_element(int group_element, int recursion_depth)
   if (recursion_depth == 0)                    /* initialization */
   {
     group = actual_group;
-    group_nr = group_element - EL_GROUP_START;
+    group_nr = GROUP_NR(group_element);
 
     group->num_elements_resolved = 0;
     group->choice_pos = 0;
+
+    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++)
@@ -1828,7 +2136,7 @@ static void resolve_group_element(int group_element, int recursion_depth)
       break;
 
     if (IS_GROUP_ELEMENT(element))
-      resolve_group_element(element, recursion_depth + 1);
+      ResolveGroupElementExt(element, recursion_depth + 1);
     else
     {
       group->element_resolved[group->num_elements_resolved++] = element;
@@ -1836,7 +2144,11 @@ static void resolve_group_element(int group_element, int recursion_depth)
     }
   }
 }
-#endif
+
+void ResolveGroupElement(int group_element)
+{
+  ResolveGroupElementExt(group_element, 0);
+}
 
 void InitElementPropertiesStatic()
 {
@@ -1855,6 +2167,7 @@ void InitElementPropertiesStatic()
     /* (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,
@@ -1892,7 +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,
@@ -1904,6 +2217,11 @@ void InitElementPropertiesStatic()
     EL_EMC_LENSES,
     EL_EMC_MAGNIFIER,
 
+#if 0
+    /* !!! handle separately !!! */
+    EL_DC_LANDMINE,    /* deadly when running into, but can be snapped */
+#endif
+
     -1
   };
 
@@ -1930,6 +2248,7 @@ 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,
@@ -2008,13 +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,
@@ -2057,21 +2407,25 @@ void InitElementPropertiesStatic()
     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,
@@ -2084,6 +2438,9 @@ 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
   };
@@ -2176,8 +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,
@@ -2305,8 +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,
@@ -2374,6 +2736,9 @@ void InitElementPropertiesStatic()
     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,
 
@@ -2486,6 +2851,9 @@ void InitElementPropertiesStatic()
     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,
 
@@ -2615,6 +2983,22 @@ void InitElementPropertiesStatic()
     -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
+  };
+
   static int ep_switchable[] =
   {
     EL_ROBOT_WHEEL,
@@ -2633,9 +3017,12 @@ 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,
@@ -2879,6 +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,
@@ -2928,6 +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,
@@ -2969,8 +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,
@@ -3025,13 +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,
@@ -3173,6 +3595,17 @@ void InitElementPropertiesStatic()
     -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
+  };
+
   static int ep_keygate[] =
   {
     EL_GATE_1,
@@ -3211,6 +3644,9 @@ void InitElementPropertiesStatic()
     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
   };
@@ -3246,6 +3682,10 @@ void InitElementPropertiesStatic()
     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,
@@ -3299,6 +3739,7 @@ void InitElementPropertiesStatic()
     EL_STEELWALL,
     EL_AMOEBA_DEAD,
     EL_QUICKSAND_EMPTY,
+    EL_QUICKSAND_FAST_EMPTY,
     EL_STONEBLOCK,
     EL_ROBOT_WHEEL,
     EL_KEY_1,
@@ -3349,6 +3790,10 @@ void InitElementPropertiesStatic()
     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,
@@ -3379,6 +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,
@@ -3439,13 +3886,40 @@ 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,
@@ -3484,6 +3958,7 @@ void InitElementPropertiesStatic()
   {
     EL_SAND,
     EL_LANDMINE,
+    EL_DC_LANDMINE,
     EL_TRAP,
     EL_TRAP_ACTIVE,
 
@@ -3501,10 +3976,11 @@ void InitElementPropertiesStatic()
     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_GENERIC_ACTIVE,
     EL_INTERNAL_CASCADE_DYNAMIC_ACTIVE,
 
     -1
@@ -3521,15 +3997,29 @@ void InitElementPropertiesStatic()
     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_GENERIC,
     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
+  };
+
   static struct
   {
     int *elements;
@@ -3569,6 +4059,7 @@ void InitElementPropertiesStatic()
 
     { 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                   },
@@ -3584,6 +4075,7 @@ void InitElementPropertiesStatic()
     { 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                   },
@@ -3600,6 +4092,8 @@ void InitElementPropertiesStatic()
     { ep_editor_cascade_active,                EP_EDITOR_CASCADE_ACTIVE        },
     { ep_editor_cascade_inactive,      EP_EDITOR_CASCADE_INACTIVE      },
 
+    { ep_obsolete,                     EP_OBSOLETE                     },
+
     { NULL,                            -1                              }
   };
 
@@ -3622,6 +4116,10 @@ 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)
@@ -3663,22 +4161,18 @@ void InitElementPropertiesEngine(int engine_version)
      property (which means that conditional property changes must be set to
      a reliable default value before) */
 
-#if 1
-  /* ---------- recursively resolve group elements ------------------------- */
-
-  for (i = 0; i < MAX_NUM_ELEMENTS; i++)
-    for (j = 0; j < NUM_GROUP_ELEMENTS; j++)
-      element_info[i].in_group[j] = FALSE;
-
+  /* resolve group elements */
   for (i = 0; i < NUM_GROUP_ELEMENTS; i++)
-    resolve_group_element(EL_GROUP_START + i, 0);
-#endif
+    ResolveGroupElement(EL_GROUP_START + i);
 
   /* set all special, combined or engine dependent element properties */
   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
   {
     /* ---------- 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) ||
@@ -3732,7 +4226,6 @@ void InitElementPropertiesEngine(int engine_version)
                                             !IS_COLLECTIBLE(i)));
 
     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
-
     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
     else
@@ -3855,12 +4348,16 @@ void InitElementPropertiesEngine(int 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
     };
 
@@ -3875,28 +4372,14 @@ void InitElementPropertiesEngine(int engine_version)
                  engine_version > VERSION_IDENT(2,0,1,0)));
   }
 
-  /* 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))
@@ -3911,19 +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
-
-  /* this is needed because some graphics depend on element properties */
-  if (game_status == GAME_MODE_PLAYING)
-    InitElementGraphicInfo();
 }
 
 static void InitGlobal()
@@ -3938,7 +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;
@@ -3947,13 +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");
@@ -3969,7 +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");
@@ -3985,7 +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");
@@ -4001,7 +4520,7 @@ 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");
@@ -4015,7 +4534,7 @@ void Execute_Command(char *command)
 
     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");
@@ -4026,13 +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");
@@ -4118,6 +4637,45 @@ void Execute_Command(char *command)
       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);
@@ -4313,6 +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) */
@@ -4326,18 +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);
       }
     }
@@ -4352,8 +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 */
@@ -4371,24 +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);
+
+  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++)
@@ -4557,8 +5136,8 @@ 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_PTR(artwork, type))= artwork_current_identifier;
@@ -4592,14 +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
@@ -4637,11 +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
   }
 }
 
@@ -4685,13 +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);
 
@@ -4700,8 +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 */
@@ -4709,6 +5308,10 @@ void OpenAll()
 
   InitGfxBackground();
 
+#if 1
+  em_open_all();
+#endif
+
   if (global.autoplay_leveldir)
   {
     AutoPlayTape();
@@ -4723,7 +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();
@@ -4752,5 +5360,8 @@ void CloseAllAndExit(int exit_value)
   CloseVideoDisplay();
   ClosePlatformDependentStuff();
 
+  if (exit_value != 0)
+    NotifyUserAboutErrorFile();
+
   exit(exit_value);
 }