rnd-20070113-1-src
[rocksndiamonds.git] / src / init.c
index cc3b23d57273030597f55e17e1c56df70179b9cb..f081d19a6d0b685b24d0e82abe2c013624ef1256 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                            *
@@ -66,6 +66,11 @@ 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 +104,8 @@ void InitGadgets()
   CreateToolButtons();
   CreateScreenGadgets();
 
+  InitGadgetsSoundCallback(PlaySoundActivating, PlaySoundSelecting);
+
   gadgets_initialized = TRUE;
 }
 
@@ -109,6 +116,14 @@ 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;
@@ -124,6 +139,19 @@ void InitElementSmallImages()
   /* initialize images from dynamic configuration (may be elements or other) */
   for (i = 0; i < num_property_mappings; i++)
     InitElementSmallImagesScaledUp(property_mapping[i].artwork_index);
+
+  /* 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
@@ -139,7 +167,7 @@ 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 && game_status <= GAME_MODE_PSEUDO_PREVIEW)
     special = game_status;
   else if (game_status == GAME_MODE_PSEUDO_TYPENAME)
     special = GFX_SPECIAL_ARG_MAIN;
@@ -224,7 +252,7 @@ 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;
@@ -242,6 +270,54 @@ void InitFontGraphicInfo()
     }
   }
 
+  /* 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)
@@ -269,7 +345,7 @@ 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 */
@@ -278,8 +354,11 @@ 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;
@@ -308,7 +387,7 @@ 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;
@@ -392,7 +471,7 @@ 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)
@@ -403,7 +482,7 @@ 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)
@@ -431,7 +510,7 @@ 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];
     }
@@ -440,7 +519,7 @@ 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];
     }
@@ -451,6 +530,17 @@ void InitElementGraphicInfo()
   element_info[EL_AMOEBA_TO_DIAMOND].graphic[ACTION_DEFAULT] = IMG_AMOEBA_DEAD;
 #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++)
   {
@@ -466,7 +556,7 @@ 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)
@@ -485,7 +575,7 @@ void InitElementGraphicInfo()
   {
     for (act = 0; act < NUM_ACTIONS; act++)
     {
-      for (dir = 0; dir < NUM_DIRECTIONS; dir++)
+      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);
@@ -543,8 +633,8 @@ void InitElementGraphicInfo()
   {
     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;
@@ -557,7 +647,7 @@ void InitElementGraphicInfo()
       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];
@@ -630,7 +720,7 @@ void InitElementGraphicInfo()
        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];
@@ -689,6 +779,8 @@ 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++)
   {
@@ -702,7 +794,7 @@ 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];
@@ -714,6 +806,7 @@ void InitElementGraphicInfo()
       }
     }
   }
+#endif
 
 #if 0
 #if DEBUG
@@ -793,12 +886,12 @@ 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 !!! */
@@ -806,12 +899,12 @@ 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++;
@@ -858,13 +951,13 @@ 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 ... */
@@ -879,6 +972,26 @@ 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_delay = -1;
+  graphic_info[graphic].post_delay = -1;
+  graphic_info[graphic].auto_delay = -1;
+
+#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)
@@ -898,11 +1011,13 @@ 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)
   {
@@ -975,6 +1090,9 @@ 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);
@@ -1032,8 +1150,8 @@ 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];
@@ -1041,6 +1159,14 @@ 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 */
+  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];
 }
 
 static void set_cloned_graphic_parameters(int graphic)
@@ -1096,10 +1222,61 @@ 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,
+    IMG_BACKGROUND_MESSAGE,
+    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)
   {
@@ -1129,6 +1306,7 @@ 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;
 
@@ -1137,6 +1315,10 @@ 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;
@@ -1146,9 +1328,15 @@ 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:");
@@ -1175,8 +1363,8 @@ 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:");
@@ -1259,8 +1447,8 @@ 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;
   }
 
@@ -1278,8 +1466,8 @@ 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;
   }
 
@@ -1434,8 +1622,8 @@ 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;
@@ -1613,7 +1801,8 @@ 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 */
@@ -1658,7 +1847,7 @@ 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       },
@@ -1680,6 +1869,10 @@ 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       },
@@ -1700,6 +1893,7 @@ 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      },
   };
@@ -1765,6 +1959,53 @@ boolean getBitfieldProperty(int *bitfield, int property_bit_nr, int element)
   return FALSE;
 }
 
+static void resolve_group_element(int group_element, int recursion_depth)
+{
+  static int group_nr;
+  static struct ElementGroupInfo *group;
+  struct ElementGroupInfo *actual_group = element_info[group_element].group;
+  int i;
+
+  if (actual_group == NULL)                    /* not yet initialized */
+    return;
+
+  if (recursion_depth > NUM_GROUP_ELEMENTS)    /* recursion too deep */
+  {
+    Error(ERR_WARN, "recursion too deep when resolving group element %d",
+         group_element - EL_GROUP_START + 1);
+
+    /* replace element which caused too deep recursion by question mark */
+    group->element_resolved[group->num_elements_resolved++] = EL_UNKNOWN;
+
+    return;
+  }
+
+  if (recursion_depth == 0)                    /* initialization */
+  {
+    group = actual_group;
+    group_nr = group_element - EL_GROUP_START;
+
+    group->num_elements_resolved = 0;
+    group->choice_pos = 0;
+  }
+
+  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))
+      resolve_group_element(element, recursion_depth + 1);
+    else
+    {
+      group->element_resolved[group->num_elements_resolved++] = element;
+      element_info[element].in_group[group_nr] = TRUE;
+    }
+  }
+}
+
 void InitElementPropertiesStatic()
 {
   static int ep_diggable[] =
@@ -1786,6 +2027,7 @@ void InitElementPropertiesStatic()
     EL_SP_BUGGY_BASE_ACTIVE,
     EL_EMC_PLANT,
 #endif
+
     -1
   };
 
@@ -1810,6 +2052,7 @@ void InitElementPropertiesStatic()
     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,
@@ -1828,6 +2071,7 @@ void InitElementPropertiesStatic()
     EL_SPEED_PILL,
     EL_EMC_LENSES,
     EL_EMC_MAGNIFIER,
+
     -1
   };
 
@@ -1858,6 +2102,7 @@ void InitElementPropertiesStatic()
     EL_SP_BUGGY_BASE_ACTIVE,
     EL_EMC_PLANT,
 #endif
+
     -1
   };
 
@@ -1876,6 +2121,7 @@ void InitElementPropertiesStatic()
     EL_PACMAN,
     EL_SP_SNIKSNAK,
     EL_SP_ELECTRON,
+
     -1
   };
 
@@ -1885,6 +2131,7 @@ void InitElementPropertiesStatic()
     EL_SPACESHIP,
     EL_BD_BUTTERFLY,
     EL_BD_FIREFLY,
+
     -1
   };
 
@@ -1929,13 +2176,20 @@ 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_STEELWALL_SLIPPERY,
     EL_EMC_STEELWALL_1,
     EL_EMC_STEELWALL_2,
@@ -2005,6 +2259,7 @@ void InitElementPropertiesStatic()
     EL_TUBE_LEFT_DOWN,
     EL_TUBE_RIGHT_UP,
     EL_TUBE_RIGHT_DOWN,
+
     -1
   };
 
@@ -2046,6 +2301,9 @@ void InitElementPropertiesStatic()
     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
   };
 
@@ -2075,6 +2333,7 @@ void InitElementPropertiesStatic()
     EL_BALLOON,
     EL_SPRING,
     EL_EMC_ANDROID,
+
     -1
   };
 
@@ -2103,6 +2362,7 @@ void InitElementPropertiesStatic()
     EL_CRYSTAL,
     EL_SPRING,
     EL_DX_SUPABOMB,
+
     -1
   };
 
@@ -2128,6 +2388,7 @@ void InitElementPropertiesStatic()
     EL_CRYSTAL,
     EL_SPRING,
     EL_DX_SUPABOMB,
+
     -1
   };
 
@@ -2136,6 +2397,7 @@ void InitElementPropertiesStatic()
     EL_ROCK,
     EL_BD_ROCK,
     EL_SP_ZONK,
+
     -1
   };
 
@@ -2144,6 +2406,7 @@ void InitElementPropertiesStatic()
     EL_ROCK,
     EL_BD_ROCK,
     EL_SP_ZONK,
+
     -1
   };
 
@@ -2161,8 +2424,10 @@ 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,
@@ -2180,6 +2445,7 @@ void InitElementPropertiesStatic()
 #if 0
     EL_BLACK_ORB,
 #endif
+
     -1
   };
 
@@ -2195,6 +2461,7 @@ void InitElementPropertiesStatic()
     EL_PIG,
     EL_DRAGON,
     EL_MOLE,
+
     -1
   };
 
@@ -2203,6 +2470,7 @@ void InitElementPropertiesStatic()
     EL_BOMB,
     EL_SP_DISK_ORANGE,
     EL_DX_SUPABOMB,
+
     -1
   };
 
@@ -2229,6 +2497,7 @@ void InitElementPropertiesStatic()
     EL_PENGUIN,
     EL_PIG,
     EL_DRAGON,
+
     -1
   };
 
@@ -2245,6 +2514,7 @@ void InitElementPropertiesStatic()
     EL_TUBE_LEFT_DOWN,
     EL_TUBE_RIGHT_UP,
     EL_TUBE_RIGHT_DOWN,
+
     -1
   };
 
@@ -2281,6 +2551,7 @@ void InitElementPropertiesStatic()
     EL_EMC_GATE_8_GRAY_ACTIVE,
     EL_SWITCHGATE_OPEN,
     EL_TIMEGATE_OPEN,
+
     -1
   };
 
@@ -2305,6 +2576,7 @@ void InitElementPropertiesStatic()
     EL_SP_GRAVITY_OFF_PORT_RIGHT,
     EL_SP_GRAVITY_OFF_PORT_UP,
     EL_SP_GRAVITY_OFF_PORT_DOWN,
+
     -1
   };
 
@@ -2340,6 +2612,7 @@ void InitElementPropertiesStatic()
     EL_SP_DISK_YELLOW,
     EL_BALLOON,
     EL_EMC_ANDROID,
+
     -1
   };
 
@@ -2411,6 +2684,7 @@ void InitElementPropertiesStatic()
     EL_SP_GRAVITY_OFF_PORT_RIGHT,
     EL_SP_GRAVITY_OFF_PORT_UP,
     EL_SP_GRAVITY_OFF_PORT_DOWN,
+
     -1
   };
 
@@ -2433,8 +2707,10 @@ 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,
@@ -2452,6 +2728,7 @@ void InitElementPropertiesStatic()
 
     /* elements that can explode only by explosion */
     EL_BLACK_ORB,
+
     -1
   };
 
@@ -2482,6 +2759,7 @@ void InitElementPropertiesStatic()
     EL_SP_GRAVITY_OFF_PORT_UP,
     EL_SP_GRAVITY_OFF_PORT_DOWN,
     EL_EMC_GRASS,
+
     -1
   };
 
@@ -2494,6 +2772,7 @@ void InitElementPropertiesStatic()
     EL_SP_MURPHY,
     EL_SOKOBAN_FIELD_PLAYER,
     EL_TRIGGER_PLAYER,
+
     -1
   };
 
@@ -2507,6 +2786,7 @@ void InitElementPropertiesStatic()
     EL_EMERALD_RED,
     EL_EMERALD_PURPLE,
     EL_DIAMOND,
+
     -1
   };
 
@@ -2540,6 +2820,8 @@ void InitElementPropertiesStatic()
     EL_LAMP,
     EL_TIME_ORB_FULL,
     EL_EMC_MAGIC_BALL_SWITCH,
+    EL_EMC_MAGIC_BALL_SWITCH_ACTIVE,
+
     -1
   };
 
@@ -2573,6 +2855,7 @@ void InitElementPropertiesStatic()
     EL_BD_AMOEBA,
     EL_CHAR_QUESTION,
     EL_UNKNOWN,
+
     -1
   };
 
@@ -2647,6 +2930,7 @@ void InitElementPropertiesStatic()
     EL_SP_BUGGY_BASE_ACTIVE,
     EL_SP_EXIT_OPENING,
     EL_SP_EXIT_CLOSING,
+
     -1
   };
 
@@ -2663,6 +2947,7 @@ void InitElementPropertiesStatic()
     EL_PLAYER_3,
     EL_PLAYER_4,
     EL_INVISIBLE_STEELWALL,
+
     -1
   };
 
@@ -2674,6 +2959,7 @@ void InitElementPropertiesStatic()
     EL_EMERALD_RED,
     EL_EMERALD_PURPLE,
     EL_DIAMOND,
+
     -1
   };
 
@@ -2701,6 +2987,7 @@ void InitElementPropertiesStatic()
     EL_DIAMOND,
     EL_PEARL,
     EL_CRYSTAL,
+
     -1
   };
 
@@ -2714,6 +3001,7 @@ void InitElementPropertiesStatic()
     EL_DIAMOND,
     EL_PEARL,
     EL_CRYSTAL,
+
     -1
   };
 
@@ -2725,6 +3013,7 @@ void InitElementPropertiesStatic()
     EL_EMERALD_RED,
     EL_EMERALD_PURPLE,
     EL_DIAMOND,
+
     -1
   };
 
@@ -2765,6 +3054,7 @@ 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,
@@ -2803,6 +3093,7 @@ void InitElementPropertiesStatic()
     EL_EMC_WALL_6,
     EL_EMC_WALL_7,
     EL_EMC_WALL_8,
+
     -1
   };
 
@@ -2813,6 +3104,7 @@ 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,
@@ -2910,13 +3202,20 @@ 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_STEELWALL_SLIPPERY,
     EL_EMC_STEELWALL_1,
     EL_EMC_STEELWALL_2,
@@ -2966,6 +3265,7 @@ void InitElementPropertiesStatic()
     EL_TUBE_LEFT_DOWN,
     EL_TUBE_RIGHT_UP,
     EL_TUBE_RIGHT_DOWN,
+
     -1
   };
 
@@ -2982,6 +3282,7 @@ void InitElementPropertiesStatic()
     EL_PACMAN,
     EL_SP_SNIKSNAK,
     EL_SP_ELECTRON,
+
     -1
   };
 
@@ -2999,6 +3300,7 @@ void InitElementPropertiesStatic()
     EL_CONVEYOR_BELT_4_LEFT,
     EL_CONVEYOR_BELT_4_MIDDLE,
     EL_CONVEYOR_BELT_4_RIGHT,
+
     -1
   };
 
@@ -3016,6 +3318,7 @@ void InitElementPropertiesStatic()
     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
+
     -1
   };
 
@@ -3033,6 +3336,7 @@ void InitElementPropertiesStatic()
     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
+
     -1
   };
 
@@ -3049,6 +3353,7 @@ void InitElementPropertiesStatic()
     EL_TUBE_VERTICAL_LEFT,
     EL_TUBE_VERTICAL_RIGHT,
     EL_TUBE_ANY,
+
     -1
   };
 
@@ -3090,6 +3395,7 @@ void InitElementPropertiesStatic()
     EL_EMC_GATE_6_GRAY_ACTIVE,
     EL_EMC_GATE_7_GRAY_ACTIVE,
     EL_EMC_GATE_8_GRAY_ACTIVE,
+
     -1
   };
 
@@ -3100,6 +3406,8 @@ void InitElementPropertiesStatic()
     EL_AMOEBA_DRY,
     EL_AMOEBA_FULL,
     EL_BD_AMOEBA,
+    EL_EMC_DRIPPER,
+
     -1
   };
 
@@ -3109,16 +3417,30 @@ 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
   };
 
@@ -3137,17 +3459,21 @@ 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
   };
 
@@ -3212,6 +3538,7 @@ void InitElementPropertiesStatic()
     EL_EMC_GATE_7_GRAY_ACTIVE,
     EL_EMC_GATE_8_GRAY_ACTIVE,
     EL_DYNAMITE,
+    EL_EM_DYNAMITE,
     EL_INVISIBLE_STEELWALL,
     EL_INVISIBLE_WALL,
     EL_INVISIBLE_SAND,
@@ -3300,13 +3627,18 @@ 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_STEELWALL_SLIPPERY,
     EL_EMC_STEELWALL_1,
     EL_EMC_STEELWALL_2,
@@ -3332,6 +3664,7 @@ void InitElementPropertiesStatic()
     EL_EMC_WALL_14,
     EL_EMC_WALL_15,
     EL_EMC_WALL_16,
+
     -1
   };
 
@@ -3346,6 +3679,62 @@ void InitElementPropertiesStatic()
     EL_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_STEELCHARS_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_STEELCHARS,
+    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
   };
 
@@ -3355,68 +3744,73 @@ 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                      }
+    { 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_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;
@@ -3479,11 +3873,27 @@ void InitElementPropertiesEngine(int engine_version)
      property (which means that conditional property changes must be set to
      a reliable default value before) */
 
+  /* ---------- 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;
+
+  for (i = 0; i < NUM_GROUP_ELEMENTS; i++)
+    resolve_group_element(EL_GROUP_START + i, 0);
+
   /* 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_STEELCHAR_START &&
+                                  i <= EL_STEELCHAR_END)));
+
+    /* ---------- INDESTRUCTIBLE -------------------------------------------- */
+    if (i >= EL_STEELCHAR_START && i <= EL_STEELCHAR_END)
+      SET_PROPERTY(i, EP_INDESTRUCTIBLE, TRUE);
 
     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
@@ -3537,7 +3947,6 @@ 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
@@ -3618,6 +4027,12 @@ 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++)
@@ -3644,6 +4059,10 @@ void InitElementPropertiesEngine(int engine_version)
     SET_PROPERTY(i, EP_GFX_CRUMBLED,
                 element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
 #endif
+
+    /* ---------- EDITOR_CASCADE ------------------------------------------- */
+    SET_PROPERTY(i, EP_EDITOR_CASCADE, (IS_EDITOR_CASCADE_ACTIVE(i) ||
+                                       IS_EDITOR_CASCADE_INACTIVE(i)));
   }
 
   /* dynamically adjust element properties according to game engine version */
@@ -3670,28 +4089,14 @@ 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))
@@ -3706,19 +4111,6 @@ 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()
@@ -3734,6 +4126,10 @@ 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;
+
+#if 0
+    printf("%04d: %s\n", i, element_name_info[i].token_name);
+#endif
   }
 
   global.autoplay_leveldir = NULL;
@@ -3748,7 +4144,7 @@ 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");
@@ -3764,7 +4160,7 @@ 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");
@@ -3780,7 +4176,7 @@ 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");
@@ -3796,17 +4192,21 @@ 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");
@@ -3817,13 +4217,13 @@ 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");
@@ -3909,6 +4309,45 @@ 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);
@@ -3997,7 +4436,7 @@ 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 };
@@ -4071,9 +4510,9 @@ static void InitArtworkConfig()
     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;
@@ -4104,6 +4543,7 @@ 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) */
@@ -4117,18 +4557,18 @@ 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);
       }
     }
@@ -4143,8 +4583,10 @@ 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 */
@@ -4162,22 +4604,36 @@ 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);
+  RedrawBackground();
+
   ClearRectangle(backbuffer, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
   ClearRectangle(bitmap_db_door, 0, 0, 3 * DXSIZE, DYSIZE + VYSIZE);
 
@@ -4348,8 +4804,8 @@ 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;
@@ -4383,14 +4839,20 @@ 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
@@ -4428,7 +4890,7 @@ void ReloadCustomArtwork(int force_reload)
 
   if (redraw_screen)
   {
-    InitGfxBackground();
+    RedrawBackground();
 
     /* force redraw of (open or closed) door graphics */
     SetDoorState(DOOR_OPEN_ALL);
@@ -4476,13 +4938,12 @@ 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);
 
@@ -4491,8 +4952,11 @@ 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 */
@@ -4500,6 +4964,10 @@ void OpenAll()
 
   InitGfxBackground();
 
+#if 1
+  em_open_all();
+#endif
+
   if (global.autoplay_leveldir)
   {
     AutoPlayTape();
@@ -4513,10 +4981,6 @@ void OpenAll()
 
   game_status = GAME_MODE_MAIN;
 
-#if 1
-  em_open_all();
-#endif
-
   DrawMainMenu();
 
   InitNetworkServer();
@@ -4543,5 +5007,8 @@ void CloseAllAndExit(int exit_value)
   CloseVideoDisplay();
   ClosePlatformDependentStuff();
 
+  if (exit_value != 0)
+    NotifyUserAboutErrorFile();
+
   exit(exit_value);
 }