X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Finit.c;h=376aa8c822c088880b0fa46a5a4a8c56e17250d1;hb=0ef9c7d4b387b42f40d2f226920e306d588544f7;hp=62109f0009e33f5e4ff5d755d5dc8c8a320b9b24;hpb=3fb68b18f28034e492534fb3b5579fd1da888292;p=rocksndiamonds.git

diff --git a/src/init.c b/src/init.c
index 62109f00..376aa8c8 100644
--- a/src/init.c
+++ b/src/init.c
@@ -24,7 +24,6 @@
 #include "network.h"
 #include "netserv.h"
 #include "cartoons.h"
-#include "config.h"
 
 #include "conf_e2g.c"	/* include auto-generated data structure definitions */
 #include "conf_esg.c"	/* include auto-generated data structure definitions */
@@ -261,21 +260,11 @@ static int getFontBitmapID(int font_nr)
 {
   int special = -1;
 
-  if (game_status == MAINMENU || game_status == TYPENAME)
+  if (game_status >= GAME_MODE_MAIN && game_status <= GAME_MODE_PSEUDO_PREVIEW)
+    special = game_status;
+  else if (game_status == GAME_MODE_PSEUDO_TYPENAME)
     special = GFX_SPECIAL_ARG_MAIN;
-  else if (game_status == CHOOSELEVEL)
-    special = GFX_SPECIAL_ARG_LEVELS;
-  else if (game_status == HALLOFFAME)
-    special = GFX_SPECIAL_ARG_SCORES;
-  else if (game_status == LEVELED)
-    special = GFX_SPECIAL_ARG_EDITOR;
-  else if (game_status == HELPSCREEN)
-    special = GFX_SPECIAL_ARG_INFO;
-  else if (game_status == SETUP)
-    special = GFX_SPECIAL_ARG_SETUP;
-  else if (game_status == PSEUDO_PREVIEW)
-    special = GFX_SPECIAL_ARG_PREVIEW;
-  else if (game_status == PLAYING || game_status == PSEUDO_DOOR)
+  else if (game_status == GAME_MODE_PLAYING)
     special = GFX_SPECIAL_ARG_DOOR;
 
   if (special != -1)
@@ -364,7 +353,7 @@ void InitFontGraphicInfo()
   /* ---------- initialize font bitmap array ---------- */
 
   if (font_bitmap_info != NULL)
-    free(font_bitmap_info);
+    FreeFontInfo(font_bitmap_info);
 
   font_bitmap_info =
     checked_calloc(num_font_bitmaps * sizeof(struct FontBitmapInfo));
@@ -384,6 +373,13 @@ void InitFontGraphicInfo()
       int font_bitmap_id = font_info[i].special_bitmap_id[j];
       int graphic = font_info[i].special_graphic[j];
 
+      /* set 'graphic_info' for font entries, if uninitialized (guessed) */
+      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;
+      }
+
       /* copy font relevant information from graphics information */
       font_bitmap_info[font_bitmap_id].bitmap = graphic_info[graphic].bitmap;
       font_bitmap_info[font_bitmap_id].src_x  = graphic_info[graphic].src_x;
@@ -392,6 +388,11 @@ void InitFontGraphicInfo()
       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].num_chars =
+	graphic_info[graphic].anim_frames;
+      font_bitmap_info[font_bitmap_id].num_chars_per_line =
+	graphic_info[graphic].anim_frames_per_line;
     }
   }
 
@@ -410,27 +411,59 @@ void InitElementGraphicInfo()
     for (act=0; act<NUM_ACTIONS; act++)
     {
       element_info[i].graphic[act] = -1;
+      element_info[i].crumbled[act] = -1;
 
       for (dir=0; dir<NUM_DIRECTIONS; dir++)
+      {
 	element_info[i].direction_graphic[act][dir] = -1;
+	element_info[i].direction_crumbled[act][dir] = -1;
+      }
     }
   }
 
   /* initialize normal element/graphic mapping from static configuration */
   for (i=0; element_to_graphic[i].element > -1; i++)
   {
-    int element   = element_to_graphic[i].element;
-    int action    = element_to_graphic[i].action;
-    int direction = element_to_graphic[i].direction;
-    int graphic   = element_to_graphic[i].graphic;
+    int element      = element_to_graphic[i].element;
+    int action       = element_to_graphic[i].action;
+    int direction    = element_to_graphic[i].direction;
+    boolean crumbled = element_to_graphic[i].crumbled;
+    int graphic      = element_to_graphic[i].graphic;
+
+    if (graphic_info[graphic].bitmap == NULL)
+      continue;
+
+    if ((action > -1 || direction > -1 || crumbled == TRUE) &&
+	el2img(element) != -1)
+    {
+      boolean base_redefined = getImageListEntry(el2img(element))->redefined;
+      boolean act_dir_redefined = getImageListEntry(graphic)->redefined;
+
+      /* if the base graphic ("emerald", for example) has been redefined,
+      	 but not the action graphic ("emerald.falling", for example), do not
+	 use an existing (in this case considered obsolete) action graphic
+	 anymore, but use the automatically determined default graphic */
+      if (base_redefined && !act_dir_redefined)
+	continue;
+    }
 
     if (action < 0)
       action = ACTION_DEFAULT;
 
-    if (direction > -1)
-      element_info[element].direction_graphic[action][direction] = graphic;
+    if (crumbled)
+    {
+      if (direction > -1)
+	element_info[element].direction_crumbled[action][direction] = graphic;
+      else
+	element_info[element].crumbled[action] = graphic;
+    }
     else
-      element_info[element].graphic[action] = graphic;
+    {
+      if (direction > -1)
+	element_info[element].direction_graphic[action][direction] = graphic;
+      else
+	element_info[element].graphic[action] = graphic;
+    }
   }
 
   /* initialize normal element/graphic mapping from dynamic configuration */
@@ -441,6 +474,16 @@ void InitElementGraphicInfo()
     int direction = property_mapping[i].ext2_index;
     int special   = property_mapping[i].ext3_index;
     int graphic   = property_mapping[i].artwork_index;
+    boolean crumbled = FALSE;
+
+    if (special == GFX_SPECIAL_ARG_CRUMBLED)
+    {
+      special = -1;
+      crumbled = TRUE;
+    }
+
+    if (graphic_info[graphic].bitmap == NULL)
+      continue;
 
     if (element >= MAX_NUM_ELEMENTS || special != -1)
       continue;
@@ -448,48 +491,147 @@ void InitElementGraphicInfo()
     if (action < 0)
       action = ACTION_DEFAULT;
 
-    if (direction > -1)
-      element_info[element].direction_graphic[action][direction] = graphic;
+    if (crumbled)
+    {
+      if (direction < 0)
+	for (dir=0; dir<NUM_DIRECTIONS; dir++)
+	  element_info[element].direction_crumbled[action][dir] = -1;
+
+      if (direction > -1)
+	element_info[element].direction_crumbled[action][direction] = graphic;
+      else
+	element_info[element].crumbled[action] = graphic;
+    }
     else
-      element_info[element].graphic[action] = graphic;
+    {
+      if (direction < 0)
+	for (dir=0; dir<NUM_DIRECTIONS; dir++)
+	  element_info[element].direction_graphic[action][dir] = -1;
+
+      if (direction > -1)
+	element_info[element].direction_graphic[action][direction] = graphic;
+      else
+	element_info[element].graphic[action] = graphic;
+    }
+  }
+
+  /* now copy all graphics that are defined to be cloned from other graphics */
+  for (i=0; i<MAX_NUM_ELEMENTS; i++)
+  {
+    int graphic = element_info[i].graphic[ACTION_DEFAULT];
+    int crumbled_like, diggable_like;
+
+    if (graphic == -1)
+      continue;
+
+    crumbled_like = graphic_info[graphic].crumbled_like;
+    diggable_like = graphic_info[graphic].diggable_like;
+
+    if (crumbled_like != -1 && element_info[i].crumbled[ACTION_DEFAULT] == -1)
+    {
+      for (act=0; act<NUM_ACTIONS; act++)
+	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++)
+	  element_info[i].direction_crumbled[act][dir] =
+	    element_info[crumbled_like].direction_crumbled[act][dir];
+    }
+
+    if (diggable_like != -1 && element_info[i].graphic[ACTION_DIGGING] == -1)
+    {
+      element_info[i].graphic[ACTION_DIGGING] =
+	element_info[diggable_like].graphic[ACTION_DIGGING];
+      for (dir=0; dir<NUM_DIRECTIONS; dir++)
+	element_info[i].direction_graphic[ACTION_DIGGING][dir] =
+	  element_info[diggable_like].direction_graphic[ACTION_DIGGING][dir];
+    }
   }
 
   /* now set all '-1' values to element specific default values */
   for (i=0; i<MAX_NUM_ELEMENTS; i++)
   {
-    int default_action_graphic = element_info[i].graphic[ACTION_DEFAULT];
-    int default_action_direction_graphic[NUM_DIRECTIONS];
+    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];
 
-    if (default_action_graphic == -1)
-      default_action_graphic = IMG_CHAR_QUESTION;
+    if (default_graphic == -1)
+      default_graphic = IMG_CHAR_QUESTION;
+    if (default_crumbled == -1)
+      default_crumbled = IMG_EMPTY;
 
     for (dir=0; dir<NUM_DIRECTIONS; dir++)
     {
-      default_action_direction_graphic[dir] =
+      default_direction_graphic[dir] =
 	element_info[i].direction_graphic[ACTION_DEFAULT][dir];
+      default_direction_crumbled[dir] =
+	element_info[i].direction_crumbled[ACTION_DEFAULT][dir];
 
-      if (default_action_direction_graphic[dir] == -1)
-	default_action_direction_graphic[dir] = default_action_graphic;
+      if (default_direction_graphic[dir] == -1)
+	default_direction_graphic[dir] = default_graphic;
+      if (default_direction_crumbled[dir] == -1)
+	default_direction_crumbled[dir] = default_crumbled;
     }
 
     for (act=0; act<NUM_ACTIONS; act++)
     {
+      boolean act_remove = (act == ACTION_DIGGING ||
+			    act == ACTION_SNAPPING ||
+			    act == ACTION_COLLECTING);
+
+      /* generic default action graphic (defined by "[default]" directive) */
+      int default_action_graphic = element_info[EL_DEFAULT].graphic[act];
+      int default_action_crumbled = element_info[EL_DEFAULT].crumbled[act];
+
+      /* look for special default action graphic (classic game specific) */
+      if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].graphic[act] != -1)
+	default_action_graphic = element_info[EL_BD_DEFAULT].graphic[act];
+      if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].graphic[act] != -1)
+	default_action_graphic = element_info[EL_SP_DEFAULT].graphic[act];
+      if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].graphic[act] != -1)
+	default_action_graphic = element_info[EL_SB_DEFAULT].graphic[act];
+
+      if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].crumbled[act] != -1)
+	default_action_crumbled = element_info[EL_BD_DEFAULT].crumbled[act];
+      if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].crumbled[act] != -1)
+	default_action_crumbled = element_info[EL_SP_DEFAULT].crumbled[act];
+      if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].crumbled[act] != -1)
+	default_action_crumbled = element_info[EL_SB_DEFAULT].crumbled[act];
+
+      if (default_action_graphic == -1)
+	default_action_graphic = default_graphic;
+      if (default_action_crumbled == -1)
+	default_action_crumbled = default_crumbled;
+
       for (dir=0; dir<NUM_DIRECTIONS; dir++)
       {
-	int default_direction_graphic = element_info[i].graphic[act];
+	int default_action_direction_graphic = element_info[i].graphic[act];
+	int default_action_direction_crumbled = element_info[i].crumbled[act];
 
 	/* no graphic for current action -- use default direction graphic */
-	if (default_direction_graphic == -1)
-	  default_direction_graphic = default_action_direction_graphic[dir];
+	if (default_action_direction_graphic == -1)
+	  default_action_direction_graphic =
+	    (act_remove ? IMG_EMPTY : default_direction_graphic[dir]);
+	if (default_action_direction_crumbled == -1)
+	  default_action_direction_crumbled =
+	    (act_remove ? IMG_EMPTY : default_direction_crumbled[dir]);
 
 	if (element_info[i].direction_graphic[act][dir] == -1)
 	  element_info[i].direction_graphic[act][dir] =
-	    default_direction_graphic;
+	    default_action_direction_graphic;
+	if (element_info[i].direction_crumbled[act][dir] == -1)
+	  element_info[i].direction_crumbled[act][dir] =
+	    default_action_direction_crumbled;
       }
 
       /* no graphic for this specific action -- use default action graphic */
       if (element_info[i].graphic[act] == -1)
-	element_info[i].graphic[act] = default_action_graphic;
+	element_info[i].graphic[act] =
+	  (act_remove ? IMG_EMPTY : default_action_graphic);
+      if (element_info[i].crumbled[act] == -1)
+	element_info[i].crumbled[act] =
+	  (act_remove ? IMG_EMPTY : default_action_crumbled);
     }
   }
 
@@ -528,6 +670,10 @@ void InitElementSpecialGraphicInfo()
     boolean base_redefined = getImageListEntry(el2img(element))->redefined;
     boolean special_redefined = getImageListEntry(graphic)->redefined;
 
+    /* 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
+       anymore, but use the automatically created (down-scaled) graphic */
     if (base_redefined && !special_redefined)
       continue;
 
@@ -549,20 +695,36 @@ void InitElementSpecialGraphicInfo()
   }
 }
 
+static int get_element_from_token(char *token)
+{
+  int i;
+
+  for (i=0; i < MAX_NUM_ELEMENTS; i++)
+    if (strcmp(element_info[i].token_name, token) == 0)
+      return i;
+
+  return -1;
+}
+
 static void set_graphic_parameters(int graphic, char **parameter_raw)
 {
   Bitmap *src_bitmap = getBitmapFromImageID(graphic);
-  int num_xtiles = (src_bitmap ? src_bitmap->width          : TILEX) / TILEX;
-  int num_ytiles = (src_bitmap ? src_bitmap->height * 2 / 3 : TILEY) / TILEY;
   int parameter[NUM_GFX_ARGS];
+  int anim_frames_per_row = 1, anim_frames_per_col = 1;
+  int anim_frames_per_line = 1;
   int i;
 
   /* get integer values from string parameters */
   for (i=0; i < NUM_GFX_ARGS; i++)
+  {
     parameter[i] =
       get_parameter_value(image_config_suffix[i].token, parameter_raw[i],
 			  image_config_suffix[i].type);
 
+    if (image_config_suffix[i].type == TYPE_TOKEN)
+      parameter[i] = get_element_from_token(parameter_raw[i]);
+  }
+
   graphic_info[graphic].bitmap = src_bitmap;
 
   /* start with reliable default values */
@@ -572,6 +734,8 @@ static void set_graphic_parameters(int graphic, char **parameter_raw)
   graphic_info[graphic].height = TILEY;
   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].crumbled_like = -1;	/* do not use clone element */
+  graphic_info[graphic].diggable_like = -1;	/* do not use clone element */
 
   /* optional x and y tile position of animation frame sequence */
   if (parameter[GFX_ARG_XPOS] != ARG_UNDEFINED_VALUE)
@@ -591,20 +755,26 @@ static void set_graphic_parameters(int graphic, char **parameter_raw)
   if (parameter[GFX_ARG_HEIGHT] != ARG_UNDEFINED_VALUE)
     graphic_info[graphic].height = parameter[GFX_ARG_HEIGHT];
 
-  /* correct x or y offset dependant of vertical or horizontal frame order */
+  if (src_bitmap)
+  {
+    anim_frames_per_row = src_bitmap->width  / graphic_info[graphic].width;
+    anim_frames_per_col = src_bitmap->height / graphic_info[graphic].height;
+  }
+
+  /* correct x or y offset dependent of vertical or horizontal frame order */
   if (parameter[GFX_ARG_VERTICAL])	/* frames are ordered vertically */
   {
-    if (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE)
-      graphic_info[graphic].offset_y = parameter[GFX_ARG_OFFSET];
-    else
-      graphic_info[graphic].offset_y = graphic_info[graphic].height;
+    graphic_info[graphic].offset_y =
+      (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
+       parameter[GFX_ARG_OFFSET] : graphic_info[graphic].height);
+    anim_frames_per_line = anim_frames_per_col;
   }
   else					/* frames are ordered horizontally */
   {
-    if (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE)
-      graphic_info[graphic].offset_x = parameter[GFX_ARG_OFFSET];
-    else
-      graphic_info[graphic].offset_x = graphic_info[graphic].width;
+    graphic_info[graphic].offset_x =
+      (parameter[GFX_ARG_OFFSET] != ARG_UNDEFINED_VALUE ?
+       parameter[GFX_ARG_OFFSET] : graphic_info[graphic].width);
+    anim_frames_per_line = anim_frames_per_row;
   }
 
   /* optionally, the x and y offset of frames can be specified directly */
@@ -617,20 +787,23 @@ static void set_graphic_parameters(int graphic, char **parameter_raw)
   if (parameter[GFX_ARG_FRAMES] != ARG_UNDEFINED_VALUE)
     graphic_info[graphic].anim_frames = parameter[GFX_ARG_FRAMES];
   else if (parameter[GFX_ARG_XPOS] == 0 && !parameter[GFX_ARG_VERTICAL])
-    graphic_info[graphic].anim_frames =	num_xtiles;
+    graphic_info[graphic].anim_frames =	anim_frames_per_row;
   else if (parameter[GFX_ARG_YPOS] == 0 && parameter[GFX_ARG_VERTICAL])
-    graphic_info[graphic].anim_frames =	num_ytiles;
+    graphic_info[graphic].anim_frames =	anim_frames_per_col;
   else
     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);
+
   graphic_info[graphic].anim_delay = parameter[GFX_ARG_DELAY];
   if (graphic_info[graphic].anim_delay == 0)	/* delay must be at least 1 */
     graphic_info[graphic].anim_delay = 1;
 
-  if (parameter[GFX_ARG_ANIM_MODE] != ANIM_NONE)
-    graphic_info[graphic].anim_mode = parameter[GFX_ARG_ANIM_MODE];
-  else if (graphic_info[graphic].anim_frames > 1)
-    graphic_info[graphic].anim_mode = ANIM_LOOP;
+  graphic_info[graphic].anim_mode = parameter[GFX_ARG_ANIM_MODE];
+  if (graphic_info[graphic].anim_frames == 1)
+    graphic_info[graphic].anim_mode = ANIM_NONE;
 
   /* automatically determine correct start frame, if not defined */
   if (parameter[GFX_ARG_START_FRAME] == ARG_UNDEFINED_VALUE)
@@ -644,6 +817,14 @@ static void set_graphic_parameters(int graphic, char **parameter_raw)
   /* animation synchronized with global frame counter, not move position */
   graphic_info[graphic].anim_global_sync = parameter[GFX_ARG_GLOBAL_SYNC];
 
+  /* optional element for cloning crumble graphics */
+  if (parameter[GFX_ARG_CRUMBLED_LIKE] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].crumbled_like = parameter[GFX_ARG_CRUMBLED_LIKE];
+
+  /* optional element for cloning digging graphics */
+  if (parameter[GFX_ARG_DIGGABLE_LIKE] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].diggable_like = parameter[GFX_ARG_DIGGABLE_LIKE];
+
   /* this is only used for toon animations */
   graphic_info[graphic].step_offset = parameter[GFX_ARG_STEP_OFFSET];
   graphic_info[graphic].step_delay  = parameter[GFX_ARG_STEP_DELAY];
@@ -697,6 +878,16 @@ static void InitGraphicInfo()
     int src_x, src_y;
     int first_frame, last_frame;
 
+#if 0
+    printf("::: image: '%s'\n", image->token);
+#endif
+
+#if 0
+    printf("::: image # %d: '%s' ['%s']\n",
+	   i, image->token,
+	   getTokenFromImageID(i));
+#endif
+
     set_graphic_parameters(i, image->parameter);
 
     /* now check if no animation frames are outside of the loaded image */
@@ -829,48 +1020,61 @@ static void InitElementSoundInfo()
 	  element_info[j].sound[action] = sound;
   }
 
-  /* initialize element/sound mapping from dynamic configuration */
+  /* initialize element class/sound mapping from dynamic configuration */
   for (i=0; i < num_property_mappings; i++)
   {
-    int element = property_mapping[i].base_index;
-    int action  = property_mapping[i].ext1_index;
-    int sound   = property_mapping[i].artwork_index;
+    int element_class = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
+    int action        = property_mapping[i].ext1_index;
+    int sound         = property_mapping[i].artwork_index;
 
-    if (element >= MAX_NUM_ELEMENTS)
+    if (element_class < 0 || element_class >= MAX_NUM_ELEMENTS)
       continue;
 
     if (action < 0)
       action = ACTION_DEFAULT;
 
-    element_info[element].sound[action] = sound;
+    for (j=0; j < MAX_NUM_ELEMENTS; j++)
+      if (strcmp(element_info[j].class_name,
+		 element_info[element_class].class_name) == 0)
+	element_info[j].sound[action] = sound;
   }
 
-  /* initialize element class/sound mapping from dynamic configuration */
+  /* initialize element/sound mapping from dynamic configuration */
   for (i=0; i < num_property_mappings; i++)
   {
-    int element_class = property_mapping[i].base_index - MAX_NUM_ELEMENTS;
-    int action        = property_mapping[i].ext1_index;
-    int sound         = property_mapping[i].artwork_index;
+    int element = property_mapping[i].base_index;
+    int action  = property_mapping[i].ext1_index;
+    int sound   = property_mapping[i].artwork_index;
 
-    if (element_class < 0 || element_class >= MAX_NUM_ELEMENTS)
+    if (element >= MAX_NUM_ELEMENTS)
       continue;
 
     if (action < 0)
       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)
-	element_info[j].sound[action] = sound;
+    element_info[element].sound[action] = sound;
   }
 
   /* now set all '-1' values to element specific default values */
   for (i=0; i<MAX_NUM_ELEMENTS; i++)
   {
-    int default_action_sound = element_info[i].sound[ACTION_DEFAULT];
-
     for (act=0; act < NUM_ACTIONS; act++)
     {
+      /* generic default action sound (defined by "[default]" directive) */
+      int default_action_sound = element_info[EL_DEFAULT].sound[act];
+
+      /* look for special default action sound (classic game specific) */
+      if (IS_BD_ELEMENT(i) && element_info[EL_BD_DEFAULT].sound[act] != -1)
+	default_action_sound = element_info[EL_BD_DEFAULT].sound[act];
+      if (IS_SP_ELEMENT(i) && element_info[EL_SP_DEFAULT].sound[act] != -1)
+	default_action_sound = element_info[EL_SP_DEFAULT].sound[act];
+      if (IS_SB_ELEMENT(i) && element_info[EL_SB_DEFAULT].sound[act] != -1)
+	default_action_sound = element_info[EL_SB_DEFAULT].sound[act];
+
+      /* look for element specific default sound (independent from action) */
+      if (element_info[i].sound[ACTION_DEFAULT] != -1)
+	default_action_sound = element_info[i].sound[ACTION_DEFAULT];
+
       /* no sound for this specific action -- use default action sound */
       if (element_info[i].sound[act] == -1)
 	element_info[i].sound[act] = default_action_sound;
@@ -896,8 +1100,10 @@ static void set_sound_parameters(int sound, char **parameter_raw)
 
 static void InitSoundInfo()
 {
+#if 0
   struct PropertyMapping *property_mapping = getSoundListPropertyMapping();
   int num_property_mappings = getSoundListPropertyMappingSize();
+#endif
   int *sound_effect_properties;
   int num_sounds = getSoundListSize();
   int i, j;
@@ -921,6 +1127,10 @@ static void InitSoundInfo()
     sound_effect_properties[i] = ACTION_OTHER;
     sound_info[i].loop = FALSE;
 
+#if 0
+    printf("::: sound %d: '%s'\n", i, sound->token);
+#endif
+
     /* determine all loop sounds and identify certain sound classes */
 
     for (j=0; element_action_info[j].suffix; j++)
@@ -932,12 +1142,17 @@ static void InitSoundInfo()
 		 element_action_info[j].suffix) == 0)
       {
 	sound_effect_properties[i] = element_action_info[j].value;
+	sound_info[i].loop = element_action_info[j].is_loop_sound;
 
-	if (element_action_info[j].is_loop_sound)
-	  sound_info[i].loop = TRUE;
+	break;
       }
     }
 
+#if 0
+    if (strcmp(sound->token, "custom_42") == 0)
+      printf("::: '%s' -> %d\n", sound->token, sound_info[i].loop);
+#endif
+
     /* associate elements and some selected sound actions */
 
     for (j=0; j<MAX_NUM_ELEMENTS; j++)
@@ -963,6 +1178,8 @@ static void InitSoundInfo()
 
   free(sound_effect_properties);
 
+#if 0
+  /* !!! now handled in InitElementSoundInfo() !!! */
   /* initialize element/sound mapping from dynamic configuration */
   for (i=0; i < num_property_mappings; i++)
   {
@@ -973,8 +1190,12 @@ static void InitSoundInfo()
     if (action < 0)
       action = ACTION_DEFAULT;
 
+    printf("::: %d: %d, %d, %d ['%s']\n",
+	   i, element, action, sound, element_info[element].token_name);
+
     element_info[element].sound[action] = sound;
   }
+#endif
 
 #if 0
   /* TEST ONLY */
@@ -1015,9 +1236,9 @@ static void InitSoundInfo()
 
 static void ReinitializeGraphics()
 {
+  InitGraphicInfo();			/* graphic properties mapping */
   InitElementGraphicInfo();		/* element game graphic mapping */
   InitElementSpecialGraphicInfo();	/* element special graphic mapping */
-  InitGraphicInfo();			/* graphic properties mapping */
 
   InitElementSmallImages();		/* create editor and preview images */
   InitFontGraphicInfo();		/* initialize text drawing functions */
@@ -1031,12 +1252,8 @@ static void ReinitializeGraphics()
 
 static void ReinitializeSounds()
 {
-  InitElementSoundInfo();	/* element game sound mapping */
   InitSoundInfo();		/* sound properties mapping */
-
-#if 1
   InitElementSoundInfo();	/* element game sound mapping */
-#endif
 
   InitPlaySoundLevel();		/* internal game sound settings */
 }
@@ -1046,31 +1263,35 @@ static void ReinitializeMusic()
   /* currently nothing to do */
 }
 
-void InitElementProperties()
+void InitElementPropertiesStatic()
 {
-  int i, j;
-
-  static int ep_amoebalive[] =
+  static int ep_diggable[] =
   {
-    EL_AMOEBA_WET,
-    EL_AMOEBA_DRY,
-    EL_AMOEBA_FULL,
-    EL_BD_AMOEBA
-  };
-  static int ep_amoebalive_num = SIZEOF_ARRAY_INT(ep_amoebalive);
+    EL_SAND,
+    EL_SP_BASE,
+    EL_SP_BUGGY_BASE,
+    EL_SP_BUGGY_BASE_ACTIVATING,
+    EL_TRAP,
+    EL_INVISIBLE_SAND,
+    EL_INVISIBLE_SAND_ACTIVE,
 
-  static int ep_amoeboid[] =
-  {
-    EL_AMOEBA_DEAD,
-    EL_AMOEBA_WET,
-    EL_AMOEBA_DRY,
-    EL_AMOEBA_FULL,
-    EL_BD_AMOEBA
+    /* !!! currently not diggable, but handled by 'ep_dont_run_into' !!! */
+#if 0
+    EL_LANDMINE,
+    EL_TRAP_ACTIVE,
+    EL_SP_BUGGY_BASE_ACTIVE,
+#endif
+    -1
   };
-  static int ep_amoeboid_num = SIZEOF_ARRAY_INT(ep_amoeboid);
 
-  static int ep_schluessel[] =
+  static int ep_collectible[] =
   {
+    EL_BD_DIAMOND,
+    EL_EMERALD,
+    EL_DIAMOND,
+    EL_EMERALD_YELLOW,
+    EL_EMERALD_RED,
+    EL_EMERALD_PURPLE,
     EL_KEY_1,
     EL_KEY_2,
     EL_KEY_3,
@@ -1078,12 +1299,134 @@ void InitElementProperties()
     EL_EM_KEY_1,
     EL_EM_KEY_2,
     EL_EM_KEY_3,
-    EL_EM_KEY_4
+    EL_EM_KEY_4,
+    EL_DYNAMITE,
+    EL_DYNABOMB_INCREASE_NUMBER,
+    EL_DYNABOMB_INCREASE_SIZE,
+    EL_DYNABOMB_INCREASE_POWER,
+    EL_SP_INFOTRON,
+    EL_SP_DISK_RED,
+    EL_PEARL,
+    EL_CRYSTAL,
+    EL_KEY_WHITE,
+    EL_SHIELD_NORMAL,
+    EL_SHIELD_DEADLY,
+    EL_EXTRA_TIME,
+    EL_ENVELOPE,
+    EL_SPEED_PILL,
+    -1
+  };
+
+  static int ep_dont_run_into[] =
+  {
+    /* same elements as in 'ep_dont_touch' */
+    EL_BUG,
+    EL_SPACESHIP,
+    EL_BD_BUTTERFLY,
+    EL_BD_FIREFLY,
+
+    /* same elements as in 'ep_dont_collide_with' */
+    EL_YAMYAM,
+    EL_DARK_YAMYAM,
+    EL_ROBOT,
+    EL_PACMAN,
+    EL_SP_SNIKSNAK,
+    EL_SP_ELECTRON,
+
+    /* new elements */
+    EL_AMOEBA_DROP,
+    EL_ACID,
+
+    /* !!! maybe this should better be handled by 'ep_diggable' !!! */
+#if 1
+    EL_SP_BUGGY_BASE_ACTIVE,
+    EL_TRAP_ACTIVE,
+    EL_LANDMINE,
+#endif
+    -1
+  };
+
+  static int ep_dont_collide_with[] =
+  {
+    /* same elements as in 'ep_dont_touch' */
+    EL_BUG,
+    EL_SPACESHIP,
+    EL_BD_BUTTERFLY,
+    EL_BD_FIREFLY,
+
+    /* new elements */
+    EL_YAMYAM,
+    EL_DARK_YAMYAM,
+    EL_ROBOT,
+    EL_PACMAN,
+    EL_SP_SNIKSNAK,
+    EL_SP_ELECTRON,
+    -1
+  };
+
+  static int ep_dont_touch[] =
+  {
+    EL_BUG,
+    EL_SPACESHIP,
+    EL_BD_BUTTERFLY,
+    EL_BD_FIREFLY,
+    -1
   };
-  static int ep_schluessel_num = SIZEOF_ARRAY_INT(ep_schluessel);
 
-  static int ep_pforte[] =
+  static int ep_indestructible[] =
   {
+    EL_STEELWALL,
+    EL_ACID,
+    EL_ACID_POOL_TOPLEFT,
+    EL_ACID_POOL_TOPRIGHT,
+    EL_ACID_POOL_BOTTOMLEFT,
+    EL_ACID_POOL_BOTTOM,
+    EL_ACID_POOL_BOTTOMRIGHT,
+    EL_SP_HARDWARE_GRAY,
+    EL_SP_HARDWARE_GREEN,
+    EL_SP_HARDWARE_BLUE,
+    EL_SP_HARDWARE_RED,
+    EL_SP_HARDWARE_YELLOW,
+    EL_SP_HARDWARE_BASE_1,
+    EL_SP_HARDWARE_BASE_2,
+    EL_SP_HARDWARE_BASE_3,
+    EL_SP_HARDWARE_BASE_4,
+    EL_SP_HARDWARE_BASE_5,
+    EL_SP_HARDWARE_BASE_6,
+    EL_INVISIBLE_STEELWALL,
+    EL_INVISIBLE_STEELWALL_ACTIVE,
+    EL_CONVEYOR_BELT_1_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
+    EL_CONVEYOR_BELT_2_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
+    EL_CONVEYOR_BELT_3_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
+    EL_CONVEYOR_BELT_4_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
+    EL_LIGHT_SWITCH,
+    EL_LIGHT_SWITCH_ACTIVE,
+    EL_SIGN_EXCLAMATION,
+    EL_SIGN_RADIOACTIVITY,
+    EL_SIGN_STOP,
+    EL_SIGN_WHEELCHAIR,
+    EL_SIGN_PARKING,
+    EL_SIGN_ONEWAY,
+    EL_SIGN_HEART,
+    EL_SIGN_TRIANGLE,
+    EL_SIGN_ROUND,
+    EL_SIGN_EXIT,
+    EL_SIGN_YINYANG,
+    EL_SIGN_OTHER,
+    EL_STEELWALL_SLIPPERY,
+    EL_EMC_STEELWALL_1,
+    EL_EMC_STEELWALL_2,
+    EL_EMC_STEELWALL_3,
+    EL_EMC_STEELWALL_4,
+    EL_CRYSTAL,
     EL_GATE_1,
     EL_GATE_2,
     EL_GATE_3,
@@ -1104,257 +1447,18 @@ void InitElementProperties()
     EL_SWITCHGATE_OPENING,
     EL_SWITCHGATE_CLOSED,
     EL_SWITCHGATE_CLOSING,
+#if 0
+    EL_SWITCHGATE_SWITCH_UP,
+    EL_SWITCHGATE_SWITCH_DOWN,
+#endif
     EL_TIMEGATE_OPEN,
     EL_TIMEGATE_OPENING,
     EL_TIMEGATE_CLOSED,
     EL_TIMEGATE_CLOSING,
-    EL_TUBE_ANY,
-    EL_TUBE_VERTICAL,
-    EL_TUBE_HORIZONTAL,
-    EL_TUBE_VERTICAL_LEFT,
-    EL_TUBE_VERTICAL_RIGHT,
-    EL_TUBE_HORIZONTAL_UP,
-    EL_TUBE_HORIZONTAL_DOWN,
-    EL_TUBE_LEFT_UP,
-    EL_TUBE_LEFT_DOWN,
-    EL_TUBE_RIGHT_UP,
-    EL_TUBE_RIGHT_DOWN
-  };
-  static int ep_pforte_num = SIZEOF_ARRAY_INT(ep_pforte);
-
-  static int ep_solid[] =
-  {
-    EL_WALL,
-    EL_EXPANDABLE_WALL,
-    EL_EXPANDABLE_WALL_HORIZONTAL,
-    EL_EXPANDABLE_WALL_VERTICAL,
-    EL_EXPANDABLE_WALL_ANY,
-    EL_BD_WALL,
-    EL_WALL_CRUMBLED,
-    EL_EXIT_CLOSED,
-    EL_EXIT_OPENING,
-    EL_EXIT_OPEN,
-    EL_AMOEBA_DEAD,
-    EL_AMOEBA_WET,
-    EL_AMOEBA_DRY,
-    EL_AMOEBA_FULL,
-    EL_BD_AMOEBA,
-    EL_QUICKSAND_EMPTY,
-    EL_QUICKSAND_FULL,
-    EL_QUICKSAND_FILLING,
-    EL_QUICKSAND_EMPTYING,
-    EL_MAGIC_WALL,
-    EL_MAGIC_WALL_ACTIVE,
-    EL_MAGIC_WALL_EMPTYING,
-    EL_MAGIC_WALL_FILLING,
-    EL_MAGIC_WALL_FULL,
-    EL_MAGIC_WALL_DEAD,
-    EL_BD_MAGIC_WALL,
-    EL_BD_MAGIC_WALL_ACTIVE,
-    EL_BD_MAGIC_WALL_EMPTYING,
-    EL_BD_MAGIC_WALL_FULL,
-    EL_BD_MAGIC_WALL_FILLING,
-    EL_BD_MAGIC_WALL_DEAD,
-    EL_GAME_OF_LIFE,
-    EL_BIOMAZE,
-    EL_SP_CHIP_SINGLE,
-    EL_SP_CHIP_LEFT,
-    EL_SP_CHIP_RIGHT,
-    EL_SP_CHIP_TOP,
-    EL_SP_CHIP_BOTTOM,
-    EL_SP_TERMINAL,
-    EL_SP_TERMINAL_ACTIVE,
-    EL_SP_EXIT_CLOSED,
-    EL_SP_EXIT_OPEN,
-    EL_INVISIBLE_WALL,
-    EL_INVISIBLE_WALL_ACTIVE,
-    EL_SWITCHGATE_SWITCH_UP,
-    EL_SWITCHGATE_SWITCH_DOWN,
+#if 0
     EL_TIMEGATE_SWITCH,
     EL_TIMEGATE_SWITCH_ACTIVE,
-    EL_EMC_WALL_1,
-    EL_EMC_WALL_2,
-    EL_EMC_WALL_3,
-    EL_EMC_WALL_4,
-    EL_EMC_WALL_5,
-    EL_EMC_WALL_6,
-    EL_EMC_WALL_7,
-    EL_EMC_WALL_8,
-    EL_WALL_PEARL,
-    EL_WALL_CRYSTAL,
-
-    /* the following elements are a direct copy of "indestructible" elements,
-       except "EL_ACID", which is "indestructible", but not "solid"! */
-#if 0
-    EL_ACID,
 #endif
-    EL_STEELWALL,
-    EL_ACID_POOL_TOPLEFT,
-    EL_ACID_POOL_TOPRIGHT,
-    EL_ACID_POOL_BOTTOMLEFT,
-    EL_ACID_POOL_BOTTOM,
-    EL_ACID_POOL_BOTTOMRIGHT,
-    EL_SP_HARDWARE_GRAY,
-    EL_SP_HARDWARE_GREEN,
-    EL_SP_HARDWARE_BLUE,
-    EL_SP_HARDWARE_RED,
-    EL_SP_HARDWARE_YELLOW,
-    EL_SP_HARDWARE_BASE_1,
-    EL_SP_HARDWARE_BASE_2,
-    EL_SP_HARDWARE_BASE_3,
-    EL_SP_HARDWARE_BASE_4,
-    EL_SP_HARDWARE_BASE_5,
-    EL_SP_HARDWARE_BASE_6,
-    EL_INVISIBLE_STEELWALL,
-    EL_INVISIBLE_STEELWALL_ACTIVE,
-    EL_CONVEYOR_BELT_1_SWITCH_LEFT,
-    EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
-    EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
-    EL_CONVEYOR_BELT_2_SWITCH_LEFT,
-    EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
-    EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
-    EL_CONVEYOR_BELT_3_SWITCH_LEFT,
-    EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
-    EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
-    EL_CONVEYOR_BELT_4_SWITCH_LEFT,
-    EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
-    EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
-    EL_LIGHT_SWITCH,
-    EL_LIGHT_SWITCH_ACTIVE,
-    EL_SIGN_EXCLAMATION,
-    EL_SIGN_RADIOACTIVITY,
-    EL_SIGN_STOP,
-    EL_SIGN_WHEELCHAIR,
-    EL_SIGN_PARKING,
-    EL_SIGN_ONEWAY,
-    EL_SIGN_HEART,
-    EL_SIGN_TRIANGLE,
-    EL_SIGN_ROUND,
-    EL_SIGN_EXIT,
-    EL_SIGN_YINYANG,
-    EL_SIGN_OTHER,
-    EL_STEELWALL_SLANTED,
-    EL_EMC_STEELWALL_1,
-    EL_EMC_STEELWALL_2,
-    EL_EMC_STEELWALL_3,
-    EL_EMC_STEELWALL_4,
-    EL_CRYSTAL,
-    EL_GATE_1,
-    EL_GATE_2,
-    EL_GATE_3,
-    EL_GATE_4,
-    EL_GATE_1_GRAY,
-    EL_GATE_2_GRAY,
-    EL_GATE_3_GRAY,
-    EL_GATE_4_GRAY,
-    EL_EM_GATE_1,
-    EL_EM_GATE_2,
-    EL_EM_GATE_3,
-    EL_EM_GATE_4,
-    EL_EM_GATE_1_GRAY,
-    EL_EM_GATE_2_GRAY,
-    EL_EM_GATE_3_GRAY,
-    EL_EM_GATE_4_GRAY,
-    EL_SWITCHGATE_OPEN,
-    EL_SWITCHGATE_OPENING,
-    EL_SWITCHGATE_CLOSED,
-    EL_SWITCHGATE_CLOSING,
-    EL_TIMEGATE_OPEN,
-    EL_TIMEGATE_OPENING,
-    EL_TIMEGATE_CLOSED,
-    EL_TIMEGATE_CLOSING,
-    EL_TUBE_ANY,
-    EL_TUBE_VERTICAL,
-    EL_TUBE_HORIZONTAL,
-    EL_TUBE_VERTICAL_LEFT,
-    EL_TUBE_VERTICAL_RIGHT,
-    EL_TUBE_HORIZONTAL_UP,
-    EL_TUBE_HORIZONTAL_DOWN,
-    EL_TUBE_LEFT_UP,
-    EL_TUBE_LEFT_DOWN,
-    EL_TUBE_RIGHT_UP,
-    EL_TUBE_RIGHT_DOWN
-  };
-  static int ep_solid_num = SIZEOF_ARRAY_INT(ep_solid);
-
-  static int ep_indestructible[] =
-  {
-    EL_STEELWALL,
-    EL_ACID,
-    EL_ACID_POOL_TOPLEFT,
-    EL_ACID_POOL_TOPRIGHT,
-    EL_ACID_POOL_BOTTOMLEFT,
-    EL_ACID_POOL_BOTTOM,
-    EL_ACID_POOL_BOTTOMRIGHT,
-    EL_SP_HARDWARE_GRAY,
-    EL_SP_HARDWARE_GREEN,
-    EL_SP_HARDWARE_BLUE,
-    EL_SP_HARDWARE_RED,
-    EL_SP_HARDWARE_YELLOW,
-    EL_SP_HARDWARE_BASE_1,
-    EL_SP_HARDWARE_BASE_2,
-    EL_SP_HARDWARE_BASE_3,
-    EL_SP_HARDWARE_BASE_4,
-    EL_SP_HARDWARE_BASE_5,
-    EL_SP_HARDWARE_BASE_6,
-    EL_INVISIBLE_STEELWALL,
-    EL_INVISIBLE_STEELWALL_ACTIVE,
-    EL_CONVEYOR_BELT_1_SWITCH_LEFT,
-    EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
-    EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
-    EL_CONVEYOR_BELT_2_SWITCH_LEFT,
-    EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
-    EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
-    EL_CONVEYOR_BELT_3_SWITCH_LEFT,
-    EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
-    EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
-    EL_CONVEYOR_BELT_4_SWITCH_LEFT,
-    EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
-    EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
-    EL_LIGHT_SWITCH,
-    EL_LIGHT_SWITCH_ACTIVE,
-    EL_SIGN_EXCLAMATION,
-    EL_SIGN_RADIOACTIVITY,
-    EL_SIGN_STOP,
-    EL_SIGN_WHEELCHAIR,
-    EL_SIGN_PARKING,
-    EL_SIGN_ONEWAY,
-    EL_SIGN_HEART,
-    EL_SIGN_TRIANGLE,
-    EL_SIGN_ROUND,
-    EL_SIGN_EXIT,
-    EL_SIGN_YINYANG,
-    EL_SIGN_OTHER,
-    EL_STEELWALL_SLANTED,
-    EL_EMC_STEELWALL_1,
-    EL_EMC_STEELWALL_2,
-    EL_EMC_STEELWALL_3,
-    EL_EMC_STEELWALL_4,
-    EL_CRYSTAL,
-    EL_GATE_1,
-    EL_GATE_2,
-    EL_GATE_3,
-    EL_GATE_4,
-    EL_GATE_1_GRAY,
-    EL_GATE_2_GRAY,
-    EL_GATE_3_GRAY,
-    EL_GATE_4_GRAY,
-    EL_EM_GATE_1,
-    EL_EM_GATE_2,
-    EL_EM_GATE_3,
-    EL_EM_GATE_4,
-    EL_EM_GATE_1_GRAY,
-    EL_EM_GATE_2_GRAY,
-    EL_EM_GATE_3_GRAY,
-    EL_EM_GATE_4_GRAY,
-    EL_SWITCHGATE_OPEN,
-    EL_SWITCHGATE_OPENING,
-    EL_SWITCHGATE_CLOSED,
-    EL_SWITCHGATE_CLOSING,
-    EL_TIMEGATE_OPEN,
-    EL_TIMEGATE_OPENING,
-    EL_TIMEGATE_CLOSED,
-    EL_TIMEGATE_CLOSING,
     EL_TUBE_ANY,
     EL_TUBE_VERTICAL,
     EL_TUBE_HORIZONTAL,
@@ -1365,13 +1469,13 @@ void InitElementProperties()
     EL_TUBE_LEFT_UP,
     EL_TUBE_LEFT_DOWN,
     EL_TUBE_RIGHT_UP,
-    EL_TUBE_RIGHT_DOWN
+    EL_TUBE_RIGHT_DOWN,
+    -1
   };
-  static int ep_indestructible_num = SIZEOF_ARRAY_INT(ep_indestructible);
 
   static int ep_slippery[] =
   {
-    EL_WALL_CRUMBLED,
+    EL_WALL_SLIPPERY,
     EL_BD_WALL,
     EL_ROCK,
     EL_BD_ROCK,
@@ -1400,13 +1504,18 @@ void InitElementProperties()
     EL_SP_CHIP_TOP,
     EL_SP_CHIP_BOTTOM,
     EL_SPEED_PILL,
-    EL_STEELWALL_SLANTED,
+    EL_STEELWALL_SLIPPERY,
     EL_PEARL,
-    EL_CRYSTAL
+    EL_CRYSTAL,
+    -1
+  };
+
+  static int ep_can_change[] =
+  {
+    -1
   };
-  static int ep_slippery_num = SIZEOF_ARRAY_INT(ep_slippery);
 
-  static int ep_enemy[] =
+  static int ep_can_move[] =
   {
     EL_BUG,
     EL_SPACESHIP,
@@ -1416,82 +1525,19 @@ void InitElementProperties()
     EL_DARK_YAMYAM,
     EL_ROBOT,
     EL_PACMAN,
+    EL_MOLE,
+    EL_PENGUIN,
+    EL_PIG,
+    EL_DRAGON,
+    EL_SATELLITE,
     EL_SP_SNIKSNAK,
-    EL_SP_ELECTRON
+    EL_SP_ELECTRON,
+    EL_BALLOON,
+    EL_SPRING,
+    -1
   };
-  static int ep_enemy_num = SIZEOF_ARRAY_INT(ep_enemy);
 
-  static int ep_mauer[] =
-  {
-    EL_STEELWALL,
-    EL_GATE_1,
-    EL_GATE_2,
-    EL_GATE_3,
-    EL_GATE_4,
-    EL_GATE_1_GRAY,
-    EL_GATE_2_GRAY,
-    EL_GATE_3_GRAY,
-    EL_GATE_4_GRAY,
-    EL_EM_GATE_1,
-    EL_EM_GATE_2,
-    EL_EM_GATE_3,
-    EL_EM_GATE_4,
-    EL_EM_GATE_1_GRAY,
-    EL_EM_GATE_2_GRAY,
-    EL_EM_GATE_3_GRAY,
-    EL_EM_GATE_4_GRAY,
-    EL_EXIT_CLOSED,
-    EL_EXIT_OPENING,
-    EL_EXIT_OPEN,
-    EL_WALL,
-    EL_WALL_CRUMBLED,
-    EL_EXPANDABLE_WALL,
-    EL_EXPANDABLE_WALL_HORIZONTAL,
-    EL_EXPANDABLE_WALL_VERTICAL,
-    EL_EXPANDABLE_WALL_ANY,
-    EL_EXPANDABLE_WALL_GROWING,
-    EL_BD_WALL,
-    EL_SP_CHIP_SINGLE,
-    EL_SP_CHIP_LEFT,
-    EL_SP_CHIP_RIGHT,
-    EL_SP_CHIP_TOP,
-    EL_SP_CHIP_BOTTOM,
-    EL_SP_HARDWARE_GRAY,
-    EL_SP_HARDWARE_GREEN,
-    EL_SP_HARDWARE_BLUE,
-    EL_SP_HARDWARE_RED,
-    EL_SP_HARDWARE_YELLOW,
-    EL_SP_HARDWARE_BASE_1,
-    EL_SP_HARDWARE_BASE_2,
-    EL_SP_HARDWARE_BASE_3,
-    EL_SP_HARDWARE_BASE_4,
-    EL_SP_HARDWARE_BASE_5,
-    EL_SP_HARDWARE_BASE_6,
-    EL_SP_TERMINAL,
-    EL_SP_TERMINAL_ACTIVE,
-    EL_SP_EXIT_CLOSED,
-    EL_SP_EXIT_OPEN,
-    EL_INVISIBLE_STEELWALL,
-    EL_INVISIBLE_STEELWALL_ACTIVE,
-    EL_INVISIBLE_WALL,
-    EL_INVISIBLE_WALL_ACTIVE,
-    EL_STEELWALL_SLANTED,
-    EL_EMC_STEELWALL_1,
-    EL_EMC_STEELWALL_2,
-    EL_EMC_STEELWALL_3,
-    EL_EMC_STEELWALL_4,
-    EL_EMC_WALL_1,
-    EL_EMC_WALL_2,
-    EL_EMC_WALL_3,
-    EL_EMC_WALL_4,
-    EL_EMC_WALL_5,
-    EL_EMC_WALL_6,
-    EL_EMC_WALL_7,
-    EL_EMC_WALL_8
-  };
-  static int ep_mauer_num = SIZEOF_ARRAY_INT(ep_mauer);
-
-  static int ep_can_fall[] =
+  static int ep_can_fall[] =
   {
     EL_ROCK,
     EL_BD_ROCK,
@@ -1515,11 +1561,11 @@ void InitElementProperties()
     EL_PEARL,
     EL_CRYSTAL,
     EL_SPRING,
-    EL_DX_SUPABOMB
+    EL_DX_SUPABOMB,
+    -1
   };
-  static int ep_can_fall_num = SIZEOF_ARRAY_INT(ep_can_fall);
 
-  static int ep_can_smash[] =
+  static int ep_can_smash_player[] =
   {
     EL_ROCK,
     EL_BD_ROCK,
@@ -1540,198 +1586,89 @@ void InitElementProperties()
     EL_PEARL,
     EL_CRYSTAL,
     EL_SPRING,
-    EL_DX_SUPABOMB
+    EL_DX_SUPABOMB,
+    -1
   };
-  static int ep_can_smash_num = SIZEOF_ARRAY_INT(ep_can_smash);
 
-  static int ep_can_change[] =
+  static int ep_can_smash_enemies[] =
   {
     EL_ROCK,
     EL_BD_ROCK,
-    EL_EMERALD,
-    EL_BD_DIAMOND,
-    EL_EMERALD_YELLOW,
-    EL_EMERALD_RED,
-    EL_EMERALD_PURPLE,
-    EL_DIAMOND
+    EL_SP_ZONK,
+    -1
   };
-  static int ep_can_change_num = SIZEOF_ARRAY_INT(ep_can_change);
 
-  static int ep_can_move[] =
+  static int ep_can_smash_everything[] =
   {
-    EL_BUG,
-    EL_SPACESHIP,
-    EL_BD_BUTTERFLY,
-    EL_BD_FIREFLY,
-    EL_YAMYAM,
-    EL_DARK_YAMYAM,
-    EL_ROBOT,
-    EL_PACMAN,
-    EL_MOLE,
-    EL_PENGUIN,
-    EL_PIG,
-    EL_DRAGON,
-    EL_SATELLITE,
-    EL_SP_SNIKSNAK,
-    EL_SP_ELECTRON,
-    EL_BALLOON,
-    EL_SPRING
-  };
-  static int ep_can_move_num = SIZEOF_ARRAY_INT(ep_can_move);
-
-  static int ep_could_move[] =
-  {
-    EL_BUG_RIGHT,
-    EL_BUG_UP,
-    EL_BUG_LEFT,
-    EL_BUG_DOWN,
-    EL_SPACESHIP_RIGHT,
-    EL_SPACESHIP_UP,
-    EL_SPACESHIP_LEFT,
-    EL_SPACESHIP_DOWN,
-    EL_BD_BUTTERFLY_RIGHT,
-    EL_BD_BUTTERFLY_UP,
-    EL_BD_BUTTERFLY_LEFT,
-    EL_BD_BUTTERFLY_DOWN,
-    EL_BD_FIREFLY_RIGHT,
-    EL_BD_FIREFLY_UP,
-    EL_BD_FIREFLY_LEFT,
-    EL_BD_FIREFLY_DOWN,
-    EL_PACMAN_RIGHT,
-    EL_PACMAN_UP,
-    EL_PACMAN_LEFT,
-    EL_PACMAN_DOWN
+    EL_ROCK,
+    EL_BD_ROCK,
+    EL_SP_ZONK,
+    -1
   };
-  static int ep_could_move_num = SIZEOF_ARRAY_INT(ep_could_move);
 
-  static int ep_dont_touch[] =
+  static int ep_can_explode_by_fire[] =
   {
-    EL_BUG,
-    EL_SPACESHIP,
-    EL_BD_BUTTERFLY,
-    EL_BD_FIREFLY
-  };
-  static int ep_dont_touch_num = SIZEOF_ARRAY_INT(ep_dont_touch);
+    /* same elements as in 'ep_can_explode_impact' */
+    EL_BOMB,
+    EL_SP_DISK_ORANGE,
+    EL_DX_SUPABOMB,
 
-  static int ep_dont_go_to[] =
-  {
+    /* same elements as in 'ep_can_explode_smashed' */
+    EL_SATELLITE,
+    EL_PIG,
+    EL_DRAGON,
+    EL_MOLE,
+
+    /* new elements */
+    EL_DYNAMITE_ACTIVE,
+    EL_DYNAMITE,
+    EL_DYNABOMB_PLAYER_1_ACTIVE,
+    EL_DYNABOMB_PLAYER_2_ACTIVE,
+    EL_DYNABOMB_PLAYER_3_ACTIVE,
+    EL_DYNABOMB_PLAYER_4_ACTIVE,
+    EL_DYNABOMB_INCREASE_NUMBER,
+    EL_DYNABOMB_INCREASE_SIZE,
+    EL_DYNABOMB_INCREASE_POWER,
+    EL_SP_DISK_RED_ACTIVE,
     EL_BUG,
-    EL_SPACESHIP,
-    EL_BD_BUTTERFLY,
-    EL_BD_FIREFLY,
-    EL_YAMYAM,
-    EL_DARK_YAMYAM,
-    EL_ROBOT,
-    EL_PACMAN,
-    EL_AMOEBA_DROP,
-    EL_ACID,
+    EL_PENGUIN,
+    EL_SP_DISK_RED,
+    EL_SP_DISK_YELLOW,
     EL_SP_SNIKSNAK,
     EL_SP_ELECTRON,
-    EL_SP_BUGGY_BASE_ACTIVE,
-    EL_TRAP_ACTIVE,
-    EL_LANDMINE
-  };
-  static int ep_dont_go_to_num = SIZEOF_ARRAY_INT(ep_dont_go_to);
-
-  static int ep_mampf2[] =
-  {
-    EL_SAND,
-    EL_BUG,
-    EL_SPACESHIP,
-    EL_BD_BUTTERFLY,
-    EL_BD_FIREFLY,
-    EL_YAMYAM,
-    EL_ROBOT,
-    EL_PACMAN,
-    EL_AMOEBA_DROP,
-    EL_AMOEBA_DEAD,
-    EL_AMOEBA_WET,
-    EL_AMOEBA_DRY,
-    EL_AMOEBA_FULL,
-    EL_BD_AMOEBA,
-    EL_EMERALD,
-    EL_BD_DIAMOND,
-    EL_EMERALD_YELLOW,
-    EL_EMERALD_RED,
-    EL_EMERALD_PURPLE,
-    EL_DIAMOND,
-    EL_PEARL,
-    EL_CRYSTAL
+    -1
   };
-  static int ep_mampf2_num = SIZEOF_ARRAY_INT(ep_mampf2);
 
-  static int ep_bd_element[] =
+  static int ep_can_explode_smashed[] =
   {
-    EL_EMPTY,
-    EL_SAND,
-    EL_WALL_CRUMBLED,
-    EL_BD_WALL,
-    EL_ROCK,
-    EL_BD_ROCK,
-    EL_BD_DIAMOND,
-    EL_BD_MAGIC_WALL,
-    EL_EXIT_CLOSED,
-    EL_EXIT_OPEN,
-    EL_STEELWALL,
-    EL_PLAYER_1,
-    EL_BD_FIREFLY,
-    EL_BD_FIREFLY_1,
-    EL_BD_FIREFLY_2,
-    EL_BD_FIREFLY_3,
-    EL_BD_FIREFLY_4,
-    EL_BD_BUTTERFLY,
-    EL_BD_BUTTERFLY_1,
-    EL_BD_BUTTERFLY_2,
-    EL_BD_BUTTERFLY_3,
-    EL_BD_BUTTERFLY_4,
-    EL_BD_AMOEBA,
-    EL_CHAR_QUESTION
-  };
-  static int ep_bd_element_num = SIZEOF_ARRAY_INT(ep_bd_element);
+    /* same elements as in 'ep_can_explode_impact' */
+    EL_BOMB,
+    EL_SP_DISK_ORANGE,
+    EL_DX_SUPABOMB,
 
-  static int ep_sb_element[] =
-  {
-    EL_EMPTY,
-    EL_STEELWALL,
-    EL_SOKOBAN_OBJECT,
-    EL_SOKOBAN_FIELD_EMPTY,
-    EL_SOKOBAN_FIELD_FULL,
-    EL_PLAYER_1,
-    EL_INVISIBLE_STEELWALL
+    /* new elements */
+    EL_SATELLITE,
+    EL_PIG,
+    EL_DRAGON,
+    EL_MOLE,
+    -1
   };
-  static int ep_sb_element_num = SIZEOF_ARRAY_INT(ep_sb_element);
 
-  static int ep_gem[] =
+  static int ep_can_explode_impact[] =
   {
-    EL_EMERALD,
-    EL_BD_DIAMOND,
-    EL_EMERALD_YELLOW,
-    EL_EMERALD_RED,
-    EL_EMERALD_PURPLE,
-    EL_DIAMOND
+    EL_BOMB,
+    EL_SP_DISK_ORANGE,
+    EL_DX_SUPABOMB,
+    -1
   };
-  static int ep_gem_num = SIZEOF_ARRAY_INT(ep_gem);
 
-  static int ep_inactive[] =
+  static int ep_walkable_over[] =
   {
-    EL_EMPTY,
-    EL_SAND,
-    EL_WALL,
-    EL_BD_WALL,
-    EL_WALL_CRUMBLED,
-    EL_STEELWALL,
-    EL_AMOEBA_DEAD,
-    EL_QUICKSAND_EMPTY,
-    EL_STONEBLOCK,
-    EL_ROBOT_WHEEL,
-    EL_KEY_1,
-    EL_KEY_2,
-    EL_KEY_3,
-    EL_KEY_4,
-    EL_EM_KEY_1,
-    EL_EM_KEY_2,
-    EL_EM_KEY_3,
-    EL_EM_KEY_4,
+    EL_EMPTY_SPACE,
+    EL_SP_EMPTY_SPACE,
+    EL_SOKOBAN_FIELD_EMPTY,
+    EL_EXIT_OPEN,
+    EL_SP_EXIT_OPEN,
     EL_GATE_1,
     EL_GATE_2,
     EL_GATE_3,
@@ -1740,6 +1677,35 @@ void InitElementProperties()
     EL_GATE_2_GRAY,
     EL_GATE_3_GRAY,
     EL_GATE_4_GRAY,
+    EL_PENGUIN,
+    EL_PIG,
+    EL_DRAGON,
+    -1
+  };
+
+  static int ep_walkable_inside[] =
+  {
+    EL_TUBE_ANY,
+    EL_TUBE_VERTICAL,
+    EL_TUBE_HORIZONTAL,
+    EL_TUBE_VERTICAL_LEFT,
+    EL_TUBE_VERTICAL_RIGHT,
+    EL_TUBE_HORIZONTAL_UP,
+    EL_TUBE_HORIZONTAL_DOWN,
+    EL_TUBE_LEFT_UP,
+    EL_TUBE_LEFT_DOWN,
+    EL_TUBE_RIGHT_UP,
+    EL_TUBE_RIGHT_DOWN,
+    -1
+  };
+
+  static int ep_walkable_under[] =
+  {
+    -1
+  };
+
+  static int ep_passable_over[] =
+  {
     EL_EM_GATE_1,
     EL_EM_GATE_2,
     EL_EM_GATE_3,
@@ -1748,196 +1714,141 @@ void InitElementProperties()
     EL_EM_GATE_2_GRAY,
     EL_EM_GATE_3_GRAY,
     EL_EM_GATE_4_GRAY,
-    EL_DYNAMITE,
-    EL_INVISIBLE_STEELWALL,
-    EL_INVISIBLE_WALL,
-    EL_INVISIBLE_SAND,
-    EL_LAMP,
-    EL_LAMP_ACTIVE,
-    EL_WALL_EMERALD,
-    EL_WALL_DIAMOND,
-    EL_WALL_BD_DIAMOND,
-    EL_WALL_EMERALD_YELLOW,
-    EL_DYNABOMB_INCREASE_NUMBER,
-    EL_DYNABOMB_INCREASE_SIZE,
-    EL_DYNABOMB_INCREASE_POWER,
-    EL_SOKOBAN_OBJECT,
-    EL_SOKOBAN_FIELD_EMPTY,
-    EL_SOKOBAN_FIELD_FULL,
-    EL_WALL_EMERALD_RED,
-    EL_WALL_EMERALD_PURPLE,
-    EL_ACID_POOL_TOPLEFT,
-    EL_ACID_POOL_TOPRIGHT,
-    EL_ACID_POOL_BOTTOMLEFT,
-    EL_ACID_POOL_BOTTOM,
-    EL_ACID_POOL_BOTTOMRIGHT,
-    EL_MAGIC_WALL,
-    EL_MAGIC_WALL_DEAD,
-    EL_BD_MAGIC_WALL,
-    EL_BD_MAGIC_WALL_DEAD,
-    EL_AMOEBA_TO_DIAMOND,
-    EL_BLOCKED,
-    EL_SP_EMPTY,
-    EL_SP_BASE,
-    EL_SP_PORT_RIGHT,
-    EL_SP_PORT_DOWN,
+    EL_SWITCHGATE_OPEN,
+    EL_TIMEGATE_OPEN,
+    -1
+  };
+
+  static int ep_passable_inside[] =
+  {
     EL_SP_PORT_LEFT,
+    EL_SP_PORT_RIGHT,
     EL_SP_PORT_UP,
-    EL_SP_GRAVITY_PORT_RIGHT,
-    EL_SP_GRAVITY_PORT_DOWN,
-    EL_SP_GRAVITY_PORT_LEFT,
-    EL_SP_GRAVITY_PORT_UP,
+    EL_SP_PORT_DOWN,
     EL_SP_PORT_HORIZONTAL,
     EL_SP_PORT_VERTICAL,
     EL_SP_PORT_ANY,
-    EL_SP_DISK_RED,
-    EL_SP_DISK_YELLOW,
-    EL_SP_CHIP_SINGLE,
-    EL_SP_CHIP_LEFT,
-    EL_SP_CHIP_RIGHT,
-    EL_SP_CHIP_TOP,
-    EL_SP_CHIP_BOTTOM,
-    EL_SP_HARDWARE_GRAY,
-    EL_SP_HARDWARE_GREEN,
-    EL_SP_HARDWARE_BLUE,
-    EL_SP_HARDWARE_RED,
-    EL_SP_HARDWARE_YELLOW,
-    EL_SP_HARDWARE_BASE_1,
-    EL_SP_HARDWARE_BASE_2,
-    EL_SP_HARDWARE_BASE_3,
-    EL_SP_HARDWARE_BASE_4,
-    EL_SP_HARDWARE_BASE_5,
-    EL_SP_HARDWARE_BASE_6,
-    EL_CONVEYOR_BELT_1_SWITCH_LEFT,
-    EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
-    EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
-    EL_CONVEYOR_BELT_2_SWITCH_LEFT,
-    EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
-    EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
-    EL_CONVEYOR_BELT_3_SWITCH_LEFT,
-    EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
-    EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
-    EL_CONVEYOR_BELT_4_SWITCH_LEFT,
-    EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
-    EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
-    EL_SIGN_EXCLAMATION,
-    EL_SIGN_RADIOACTIVITY,
-    EL_SIGN_STOP,
-    EL_SIGN_WHEELCHAIR,
-    EL_SIGN_PARKING,
-    EL_SIGN_ONEWAY,
-    EL_SIGN_HEART,
-    EL_SIGN_TRIANGLE,
-    EL_SIGN_ROUND,
-    EL_SIGN_EXIT,
-    EL_SIGN_YINYANG,
-    EL_SIGN_OTHER,
-    EL_STEELWALL_SLANTED,
-    EL_EMC_STEELWALL_1,
-    EL_EMC_STEELWALL_2,
-    EL_EMC_STEELWALL_3,
-    EL_EMC_STEELWALL_4,
-    EL_EMC_WALL_1,
-    EL_EMC_WALL_2,
-    EL_EMC_WALL_3,
-    EL_EMC_WALL_4,
-    EL_EMC_WALL_5,
-    EL_EMC_WALL_6,
-    EL_EMC_WALL_7,
-    EL_EMC_WALL_8
-  };
-  static int ep_inactive_num = SIZEOF_ARRAY_INT(ep_inactive);
-
-  static int ep_explosive[] =
-  {
-    EL_BOMB,
-    EL_DYNAMITE_ACTIVE,
-    EL_DYNAMITE,
-    EL_DYNABOMB_PLAYER_1_ACTIVE,
-    EL_DYNABOMB_PLAYER_2_ACTIVE,
-    EL_DYNABOMB_PLAYER_3_ACTIVE,
-    EL_DYNABOMB_PLAYER_4_ACTIVE,
-    EL_DYNABOMB_INCREASE_NUMBER,
-    EL_DYNABOMB_INCREASE_SIZE,
-    EL_DYNABOMB_INCREASE_POWER,
-    EL_SP_DISK_RED_ACTIVE,
-    EL_BUG,
-    EL_MOLE,
-    EL_PENGUIN,
-    EL_PIG,
-    EL_DRAGON,
-    EL_SATELLITE,
-    EL_SP_DISK_RED,
-    EL_SP_DISK_ORANGE,
-    EL_SP_DISK_YELLOW,
-    EL_SP_SNIKSNAK,
-    EL_SP_ELECTRON,
-    EL_DX_SUPABOMB
+    EL_SP_GRAVITY_PORT_LEFT,
+    EL_SP_GRAVITY_PORT_RIGHT,
+    EL_SP_GRAVITY_PORT_UP,
+    EL_SP_GRAVITY_PORT_DOWN,
+    -1
   };
-  static int ep_explosive_num = SIZEOF_ARRAY_INT(ep_explosive);
 
-  static int ep_mampf3[] =
+  static int ep_passable_under[] =
   {
-    EL_EMERALD,
-    EL_BD_DIAMOND,
-    EL_EMERALD_YELLOW,
-    EL_EMERALD_RED,
-    EL_EMERALD_PURPLE,
-    EL_DIAMOND,
-    EL_PEARL,
-    EL_CRYSTAL
+    -1
   };
-  static int ep_mampf3_num = SIZEOF_ARRAY_INT(ep_mampf3);
 
   static int ep_pushable[] =
   {
     EL_ROCK,
-    EL_BD_ROCK,
     EL_BOMB,
+    EL_DX_SUPABOMB,
     EL_NUT,
     EL_TIME_ORB_EMPTY,
-    EL_SOKOBAN_FIELD_FULL,
-    EL_SOKOBAN_OBJECT,
-    EL_SATELLITE,
     EL_SP_ZONK,
     EL_SP_DISK_ORANGE,
+    EL_SPRING,
+    EL_BD_ROCK,
+    EL_SOKOBAN_OBJECT,
+    EL_SOKOBAN_FIELD_FULL,
+    EL_SATELLITE,
     EL_SP_DISK_YELLOW,
     EL_BALLOON,
-    EL_SPRING,
-    EL_DX_SUPABOMB
+    -1
+  };
+
+  static int ep_can_be_crumbled[] =
+  {
+    EL_SAND,
+    EL_LANDMINE,
+    EL_TRAP,
+    EL_TRAP_ACTIVE,
+    -1
   };
-  static int ep_pushable_num = SIZEOF_ARRAY_INT(ep_pushable);
 
   static int ep_player[] =
   {
     EL_PLAYER_1,
     EL_PLAYER_2,
     EL_PLAYER_3,
-    EL_PLAYER_4
+    EL_PLAYER_4,
+    -1
   };
-  static int ep_player_num = SIZEOF_ARRAY_INT(ep_player);
 
-  static int ep_has_content[] =
+  static int ep_can_pass_magic_wall[] =
   {
-    EL_YAMYAM,
-    EL_AMOEBA_WET,
-    EL_AMOEBA_DRY,
-    EL_AMOEBA_FULL,
-    EL_BD_AMOEBA
+    EL_ROCK,
+    EL_BD_ROCK,
+    EL_EMERALD,
+    EL_BD_DIAMOND,
+    EL_EMERALD_YELLOW,
+    EL_EMERALD_RED,
+    EL_EMERALD_PURPLE,
+    EL_DIAMOND,
+    -1
+  };
+
+  static int ep_switchable[] =
+  {
+    EL_ROBOT_WHEEL,
+    EL_SP_TERMINAL,
+    EL_CONVEYOR_BELT_1_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
+    EL_CONVEYOR_BELT_2_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
+    EL_CONVEYOR_BELT_3_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
+    EL_CONVEYOR_BELT_4_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
+    EL_SWITCHGATE_SWITCH_UP,
+    EL_SWITCHGATE_SWITCH_DOWN,
+    EL_LIGHT_SWITCH,
+    EL_LIGHT_SWITCH_ACTIVE,
+    EL_TIMEGATE_SWITCH,
+    EL_BALLOON_SWITCH_LEFT,
+    EL_BALLOON_SWITCH_RIGHT,
+    EL_BALLOON_SWITCH_UP,
+    EL_BALLOON_SWITCH_DOWN,
+    EL_BALLOON_SWITCH_ANY,
+    EL_LAMP,
+    EL_TIME_ORB_FULL,
+    -1
   };
-  static int ep_has_content_num = SIZEOF_ARRAY_INT(ep_has_content);
 
-  static int ep_eatable[] =
+  static int ep_bd_element[] =
   {
+    EL_EMPTY,
     EL_SAND,
-    EL_SP_BASE,
-    EL_SP_BUGGY_BASE,
-    EL_SP_BUGGY_BASE_ACTIVATING,
-    EL_TRAP,
-    EL_INVISIBLE_SAND,
-    EL_INVISIBLE_SAND_ACTIVE
+    EL_WALL_SLIPPERY,
+    EL_BD_WALL,
+    EL_ROCK,
+    EL_BD_ROCK,
+    EL_BD_DIAMOND,
+    EL_BD_MAGIC_WALL,
+    EL_EXIT_CLOSED,
+    EL_EXIT_OPEN,
+    EL_STEELWALL,
+    EL_PLAYER_1,
+    EL_BD_FIREFLY,
+    EL_BD_FIREFLY_1,
+    EL_BD_FIREFLY_2,
+    EL_BD_FIREFLY_3,
+    EL_BD_FIREFLY_4,
+    EL_BD_BUTTERFLY,
+    EL_BD_BUTTERFLY_1,
+    EL_BD_BUTTERFLY_2,
+    EL_BD_BUTTERFLY_3,
+    EL_BD_BUTTERFLY_4,
+    EL_BD_AMOEBA,
+    EL_CHAR_QUESTION,
+    -1
   };
-  static int ep_eatable_num = SIZEOF_ARRAY_INT(ep_eatable);
 
   static int ep_sp_element[] =
   {
@@ -1985,73 +1896,329 @@ void InitElementProperties()
     /* additional elements that appeared in newer Supaplex levels */
     EL_INVISIBLE_WALL,
     /* more than one murphy in a level results in an inactive clone */
-    EL_SP_MURPHY_CLONE
+    EL_SP_MURPHY_CLONE,
+    /* runtime elements*/
+    EL_SP_DISK_RED_ACTIVE,
+    EL_SP_TERMINAL_ACTIVE,
+    EL_SP_BUGGY_BASE_ACTIVATING,
+    EL_SP_BUGGY_BASE_ACTIVE,
+    -1
   };
-  static int ep_sp_element_num = SIZEOF_ARRAY_INT(ep_sp_element);
 
-  static int ep_quick_gate[] =
+  static int ep_sb_element[] =
   {
-    EL_EM_GATE_1,
-    EL_EM_GATE_2,
-    EL_EM_GATE_3,
-    EL_EM_GATE_4,
-    EL_EM_GATE_1_GRAY,
-    EL_EM_GATE_2_GRAY,
-    EL_EM_GATE_3_GRAY,
-    EL_EM_GATE_4_GRAY,
-    EL_SP_PORT_LEFT,
-    EL_SP_PORT_RIGHT,
-    EL_SP_PORT_UP,
-    EL_SP_PORT_DOWN,
-    EL_SP_GRAVITY_PORT_LEFT,
-    EL_SP_GRAVITY_PORT_RIGHT,
-    EL_SP_GRAVITY_PORT_UP,
-    EL_SP_GRAVITY_PORT_DOWN,
-    EL_SP_PORT_HORIZONTAL,
-    EL_SP_PORT_VERTICAL,
-    EL_SP_PORT_ANY,
-    EL_SWITCHGATE_OPEN,
-    EL_TIMEGATE_OPEN
+    EL_EMPTY,
+    EL_STEELWALL,
+    EL_SOKOBAN_OBJECT,
+    EL_SOKOBAN_FIELD_EMPTY,
+    EL_SOKOBAN_FIELD_FULL,
+    EL_PLAYER_1,
+    EL_INVISIBLE_STEELWALL,
+    -1
   };
-  static int ep_quick_gate_num = SIZEOF_ARRAY_INT(ep_quick_gate);
 
-  static int ep_over_player[] =
+  static int ep_gem[] =
   {
-    EL_SP_PORT_LEFT,
-    EL_SP_PORT_RIGHT,
-    EL_SP_PORT_UP,
-    EL_SP_PORT_DOWN,
-    EL_SP_GRAVITY_PORT_LEFT,
-    EL_SP_GRAVITY_PORT_RIGHT,
-    EL_SP_GRAVITY_PORT_UP,
-    EL_SP_GRAVITY_PORT_DOWN,
-    EL_SP_PORT_HORIZONTAL,
-    EL_SP_PORT_VERTICAL,
-    EL_SP_PORT_ANY,
-    EL_TUBE_ANY,
-    EL_TUBE_VERTICAL,
-    EL_TUBE_HORIZONTAL,
-    EL_TUBE_VERTICAL_LEFT,
-    EL_TUBE_VERTICAL_RIGHT,
-    EL_TUBE_HORIZONTAL_UP,
-    EL_TUBE_HORIZONTAL_DOWN,
-    EL_TUBE_LEFT_UP,
-    EL_TUBE_LEFT_DOWN,
-    EL_TUBE_RIGHT_UP,
-    EL_TUBE_RIGHT_DOWN
+    EL_BD_DIAMOND,
+    EL_EMERALD,
+    EL_EMERALD_YELLOW,
+    EL_EMERALD_RED,
+    EL_EMERALD_PURPLE,
+    EL_DIAMOND,
+    -1
   };
-  static int ep_over_player_num = SIZEOF_ARRAY_INT(ep_over_player);
 
-  static int ep_active_bomb[] =
+  static int ep_food_dark_yamyam[] =
   {
-    EL_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
+    EL_SAND,
+    EL_BUG,
+    EL_SPACESHIP,
+    EL_BD_BUTTERFLY,
+    EL_BD_FIREFLY,
+    EL_YAMYAM,
+    EL_ROBOT,
+    EL_PACMAN,
+    EL_AMOEBA_DROP,
+    EL_AMOEBA_DEAD,
+    EL_AMOEBA_WET,
+    EL_AMOEBA_DRY,
+    EL_AMOEBA_FULL,
+    EL_BD_AMOEBA,
+    EL_EMERALD,
+    EL_BD_DIAMOND,
+    EL_EMERALD_YELLOW,
+    EL_EMERALD_RED,
+    EL_EMERALD_PURPLE,
+    EL_DIAMOND,
+    EL_PEARL,
+    EL_CRYSTAL,
+    -1
+  };
+
+  static int ep_food_penguin[] =
+  {
+    EL_EMERALD,
+    EL_BD_DIAMOND,
+    EL_EMERALD_YELLOW,
+    EL_EMERALD_RED,
+    EL_EMERALD_PURPLE,
+    EL_DIAMOND,
+    EL_PEARL,
+    EL_CRYSTAL,
+    -1
+  };
+
+  static int ep_food_pig[] =
+  {
+    EL_EMERALD,
+    EL_BD_DIAMOND,
+    EL_EMERALD_YELLOW,
+    EL_EMERALD_RED,
+    EL_EMERALD_PURPLE,
+    EL_DIAMOND,
+    -1
+  };
+
+  static int ep_historic_wall[] =
+  {
+    EL_STEELWALL,
+    EL_GATE_1,
+    EL_GATE_2,
+    EL_GATE_3,
+    EL_GATE_4,
+    EL_GATE_1_GRAY,
+    EL_GATE_2_GRAY,
+    EL_GATE_3_GRAY,
+    EL_GATE_4_GRAY,
+    EL_EM_GATE_1,
+    EL_EM_GATE_2,
+    EL_EM_GATE_3,
+    EL_EM_GATE_4,
+    EL_EM_GATE_1_GRAY,
+    EL_EM_GATE_2_GRAY,
+    EL_EM_GATE_3_GRAY,
+    EL_EM_GATE_4_GRAY,
+    EL_EXIT_CLOSED,
+    EL_EXIT_OPENING,
+    EL_EXIT_OPEN,
+    EL_WALL,
+    EL_WALL_SLIPPERY,
+    EL_EXPANDABLE_WALL,
+    EL_EXPANDABLE_WALL_HORIZONTAL,
+    EL_EXPANDABLE_WALL_VERTICAL,
+    EL_EXPANDABLE_WALL_ANY,
+    EL_EXPANDABLE_WALL_GROWING,
+    EL_BD_WALL,
+    EL_SP_CHIP_SINGLE,
+    EL_SP_CHIP_LEFT,
+    EL_SP_CHIP_RIGHT,
+    EL_SP_CHIP_TOP,
+    EL_SP_CHIP_BOTTOM,
+    EL_SP_HARDWARE_GRAY,
+    EL_SP_HARDWARE_GREEN,
+    EL_SP_HARDWARE_BLUE,
+    EL_SP_HARDWARE_RED,
+    EL_SP_HARDWARE_YELLOW,
+    EL_SP_HARDWARE_BASE_1,
+    EL_SP_HARDWARE_BASE_2,
+    EL_SP_HARDWARE_BASE_3,
+    EL_SP_HARDWARE_BASE_4,
+    EL_SP_HARDWARE_BASE_5,
+    EL_SP_HARDWARE_BASE_6,
+    EL_SP_TERMINAL,
+    EL_SP_TERMINAL_ACTIVE,
+    EL_SP_EXIT_CLOSED,
+    EL_SP_EXIT_OPEN,
+    EL_INVISIBLE_STEELWALL,
+    EL_INVISIBLE_STEELWALL_ACTIVE,
+    EL_INVISIBLE_WALL,
+    EL_INVISIBLE_WALL_ACTIVE,
+    EL_STEELWALL_SLIPPERY,
+    EL_EMC_STEELWALL_1,
+    EL_EMC_STEELWALL_2,
+    EL_EMC_STEELWALL_3,
+    EL_EMC_STEELWALL_4,
+    EL_EMC_WALL_1,
+    EL_EMC_WALL_2,
+    EL_EMC_WALL_3,
+    EL_EMC_WALL_4,
+    EL_EMC_WALL_5,
+    EL_EMC_WALL_6,
+    EL_EMC_WALL_7,
+    EL_EMC_WALL_8,
+    -1
+  };
+
+  static int ep_historic_solid[] =
+  {
+    EL_WALL,
+    EL_EXPANDABLE_WALL,
+    EL_EXPANDABLE_WALL_HORIZONTAL,
+    EL_EXPANDABLE_WALL_VERTICAL,
+    EL_EXPANDABLE_WALL_ANY,
+    EL_BD_WALL,
+    EL_WALL_SLIPPERY,
+    EL_EXIT_CLOSED,
+    EL_EXIT_OPENING,
+    EL_EXIT_OPEN,
+    EL_AMOEBA_DEAD,
+    EL_AMOEBA_WET,
+    EL_AMOEBA_DRY,
+    EL_AMOEBA_FULL,
+    EL_BD_AMOEBA,
+    EL_QUICKSAND_EMPTY,
+    EL_QUICKSAND_FULL,
+    EL_QUICKSAND_FILLING,
+    EL_QUICKSAND_EMPTYING,
+    EL_MAGIC_WALL,
+    EL_MAGIC_WALL_ACTIVE,
+    EL_MAGIC_WALL_EMPTYING,
+    EL_MAGIC_WALL_FILLING,
+    EL_MAGIC_WALL_FULL,
+    EL_MAGIC_WALL_DEAD,
+    EL_BD_MAGIC_WALL,
+    EL_BD_MAGIC_WALL_ACTIVE,
+    EL_BD_MAGIC_WALL_EMPTYING,
+    EL_BD_MAGIC_WALL_FULL,
+    EL_BD_MAGIC_WALL_FILLING,
+    EL_BD_MAGIC_WALL_DEAD,
+    EL_GAME_OF_LIFE,
+    EL_BIOMAZE,
+    EL_SP_CHIP_SINGLE,
+    EL_SP_CHIP_LEFT,
+    EL_SP_CHIP_RIGHT,
+    EL_SP_CHIP_TOP,
+    EL_SP_CHIP_BOTTOM,
+    EL_SP_TERMINAL,
+    EL_SP_TERMINAL_ACTIVE,
+    EL_SP_EXIT_CLOSED,
+    EL_SP_EXIT_OPEN,
+    EL_INVISIBLE_WALL,
+    EL_INVISIBLE_WALL_ACTIVE,
+    EL_SWITCHGATE_SWITCH_UP,
+    EL_SWITCHGATE_SWITCH_DOWN,
+    EL_TIMEGATE_SWITCH,
+    EL_TIMEGATE_SWITCH_ACTIVE,
+    EL_EMC_WALL_1,
+    EL_EMC_WALL_2,
+    EL_EMC_WALL_3,
+    EL_EMC_WALL_4,
+    EL_EMC_WALL_5,
+    EL_EMC_WALL_6,
+    EL_EMC_WALL_7,
+    EL_EMC_WALL_8,
+    EL_WALL_PEARL,
+    EL_WALL_CRYSTAL,
+
+    /* the following elements are a direct copy of "indestructible" elements,
+       except "EL_ACID", which is "indestructible", but not "solid"! */
+#if 0
+    EL_ACID,
+#endif
+    EL_STEELWALL,
+    EL_ACID_POOL_TOPLEFT,
+    EL_ACID_POOL_TOPRIGHT,
+    EL_ACID_POOL_BOTTOMLEFT,
+    EL_ACID_POOL_BOTTOM,
+    EL_ACID_POOL_BOTTOMRIGHT,
+    EL_SP_HARDWARE_GRAY,
+    EL_SP_HARDWARE_GREEN,
+    EL_SP_HARDWARE_BLUE,
+    EL_SP_HARDWARE_RED,
+    EL_SP_HARDWARE_YELLOW,
+    EL_SP_HARDWARE_BASE_1,
+    EL_SP_HARDWARE_BASE_2,
+    EL_SP_HARDWARE_BASE_3,
+    EL_SP_HARDWARE_BASE_4,
+    EL_SP_HARDWARE_BASE_5,
+    EL_SP_HARDWARE_BASE_6,
+    EL_INVISIBLE_STEELWALL,
+    EL_INVISIBLE_STEELWALL_ACTIVE,
+    EL_CONVEYOR_BELT_1_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
+    EL_CONVEYOR_BELT_2_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
+    EL_CONVEYOR_BELT_3_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
+    EL_CONVEYOR_BELT_4_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
+    EL_LIGHT_SWITCH,
+    EL_LIGHT_SWITCH_ACTIVE,
+    EL_SIGN_EXCLAMATION,
+    EL_SIGN_RADIOACTIVITY,
+    EL_SIGN_STOP,
+    EL_SIGN_WHEELCHAIR,
+    EL_SIGN_PARKING,
+    EL_SIGN_ONEWAY,
+    EL_SIGN_HEART,
+    EL_SIGN_TRIANGLE,
+    EL_SIGN_ROUND,
+    EL_SIGN_EXIT,
+    EL_SIGN_YINYANG,
+    EL_SIGN_OTHER,
+    EL_STEELWALL_SLIPPERY,
+    EL_EMC_STEELWALL_1,
+    EL_EMC_STEELWALL_2,
+    EL_EMC_STEELWALL_3,
+    EL_EMC_STEELWALL_4,
+    EL_CRYSTAL,
+    EL_GATE_1,
+    EL_GATE_2,
+    EL_GATE_3,
+    EL_GATE_4,
+    EL_GATE_1_GRAY,
+    EL_GATE_2_GRAY,
+    EL_GATE_3_GRAY,
+    EL_GATE_4_GRAY,
+    EL_EM_GATE_1,
+    EL_EM_GATE_2,
+    EL_EM_GATE_3,
+    EL_EM_GATE_4,
+    EL_EM_GATE_1_GRAY,
+    EL_EM_GATE_2_GRAY,
+    EL_EM_GATE_3_GRAY,
+    EL_EM_GATE_4_GRAY,
+    EL_SWITCHGATE_OPEN,
+    EL_SWITCHGATE_OPENING,
+    EL_SWITCHGATE_CLOSED,
+    EL_SWITCHGATE_CLOSING,
+    EL_TIMEGATE_OPEN,
+    EL_TIMEGATE_OPENING,
+    EL_TIMEGATE_CLOSED,
+    EL_TIMEGATE_CLOSING,
+    EL_TUBE_ANY,
+    EL_TUBE_VERTICAL,
+    EL_TUBE_HORIZONTAL,
+    EL_TUBE_VERTICAL_LEFT,
+    EL_TUBE_VERTICAL_RIGHT,
+    EL_TUBE_HORIZONTAL_UP,
+    EL_TUBE_HORIZONTAL_DOWN,
+    EL_TUBE_LEFT_UP,
+    EL_TUBE_LEFT_DOWN,
+    EL_TUBE_RIGHT_UP,
+    EL_TUBE_RIGHT_DOWN,
+    -1
+  };
+
+  static int ep_classic_enemy[] =
+  {
+    EL_BUG,
+    EL_SPACESHIP,
+    EL_BD_BUTTERFLY,
+    EL_BD_FIREFLY,
+
+    EL_YAMYAM,
+    EL_DARK_YAMYAM,
+    EL_ROBOT,
+    EL_PACMAN,
+    EL_SP_SNIKSNAK,
+    EL_SP_ELECTRON,
+    -1
   };
-  static int ep_active_bomb_num = SIZEOF_ARRAY_INT(ep_active_bomb);
 
   static int ep_belt[] =
   {
@@ -2067,8 +2234,8 @@ void InitElementProperties()
     EL_CONVEYOR_BELT_4_LEFT,
     EL_CONVEYOR_BELT_4_MIDDLE,
     EL_CONVEYOR_BELT_4_RIGHT,
+    -1
   };
-  static int ep_belt_num = SIZEOF_ARRAY_INT(ep_belt);
 
   static int ep_belt_active[] =
   {
@@ -2084,8 +2251,8 @@ void InitElementProperties()
     EL_CONVEYOR_BELT_4_LEFT_ACTIVE,
     EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE,
     EL_CONVEYOR_BELT_4_RIGHT_ACTIVE,
+    -1
   };
-  static int ep_belt_active_num = SIZEOF_ARRAY_INT(ep_belt_active);
 
   static int ep_belt_switch[] =
   {
@@ -2101,166 +2268,581 @@ void InitElementProperties()
     EL_CONVEYOR_BELT_4_SWITCH_LEFT,
     EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
+    -1
+  };
+
+  static int ep_tube[] =
+  {
+    EL_TUBE_LEFT_UP,
+    EL_TUBE_LEFT_DOWN,
+    EL_TUBE_RIGHT_UP,
+    EL_TUBE_RIGHT_DOWN,
+    EL_TUBE_HORIZONTAL,
+    EL_TUBE_HORIZONTAL_UP,
+    EL_TUBE_HORIZONTAL_DOWN,
+    EL_TUBE_VERTICAL,
+    EL_TUBE_VERTICAL_LEFT,
+    EL_TUBE_VERTICAL_RIGHT,
+    EL_TUBE_ANY,
+    -1
+  };
+
+  static int ep_keygate[] =
+  {
+    EL_GATE_1,
+    EL_GATE_2,
+    EL_GATE_3,
+    EL_GATE_4,
+    EL_GATE_1_GRAY,
+    EL_GATE_2_GRAY,
+    EL_GATE_3_GRAY,
+    EL_GATE_4_GRAY,
+    EL_EM_GATE_1,
+    EL_EM_GATE_2,
+    EL_EM_GATE_3,
+    EL_EM_GATE_4,
+    EL_EM_GATE_1_GRAY,
+    EL_EM_GATE_2_GRAY,
+    EL_EM_GATE_3_GRAY,
+    EL_EM_GATE_4_GRAY,
+    -1
+  };
+
+  static int ep_amoeboid[] =
+  {
+    EL_AMOEBA_DEAD,
+    EL_AMOEBA_WET,
+    EL_AMOEBA_DRY,
+    EL_AMOEBA_FULL,
+    EL_BD_AMOEBA,
+    -1
+  };
+
+  static int ep_amoebalive[] =
+  {
+    EL_AMOEBA_WET,
+    EL_AMOEBA_DRY,
+    EL_AMOEBA_FULL,
+    EL_BD_AMOEBA,
+    -1
+  };
+
+  static int ep_has_content[] =
+  {
+    EL_YAMYAM,
+    EL_AMOEBA_WET,
+    EL_AMOEBA_DRY,
+    EL_AMOEBA_FULL,
+    EL_BD_AMOEBA,
+    -1
+  };
+
+  static int ep_active_bomb[] =
+  {
+    EL_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
+  };
+
+  static int ep_inactive[] =
+  {
+    EL_EMPTY,
+    EL_SAND,
+    EL_WALL,
+    EL_BD_WALL,
+    EL_WALL_SLIPPERY,
+    EL_STEELWALL,
+    EL_AMOEBA_DEAD,
+    EL_QUICKSAND_EMPTY,
+    EL_STONEBLOCK,
+    EL_ROBOT_WHEEL,
+    EL_KEY_1,
+    EL_KEY_2,
+    EL_KEY_3,
+    EL_KEY_4,
+    EL_EM_KEY_1,
+    EL_EM_KEY_2,
+    EL_EM_KEY_3,
+    EL_EM_KEY_4,
+    EL_GATE_1,
+    EL_GATE_2,
+    EL_GATE_3,
+    EL_GATE_4,
+    EL_GATE_1_GRAY,
+    EL_GATE_2_GRAY,
+    EL_GATE_3_GRAY,
+    EL_GATE_4_GRAY,
+    EL_EM_GATE_1,
+    EL_EM_GATE_2,
+    EL_EM_GATE_3,
+    EL_EM_GATE_4,
+    EL_EM_GATE_1_GRAY,
+    EL_EM_GATE_2_GRAY,
+    EL_EM_GATE_3_GRAY,
+    EL_EM_GATE_4_GRAY,
+    EL_DYNAMITE,
+    EL_INVISIBLE_STEELWALL,
+    EL_INVISIBLE_WALL,
+    EL_INVISIBLE_SAND,
+    EL_LAMP,
+    EL_LAMP_ACTIVE,
+    EL_WALL_EMERALD,
+    EL_WALL_DIAMOND,
+    EL_WALL_BD_DIAMOND,
+    EL_WALL_EMERALD_YELLOW,
+    EL_DYNABOMB_INCREASE_NUMBER,
+    EL_DYNABOMB_INCREASE_SIZE,
+    EL_DYNABOMB_INCREASE_POWER,
+#if 0
+    EL_SOKOBAN_OBJECT,
+#endif
+    EL_SOKOBAN_FIELD_EMPTY,
+    EL_SOKOBAN_FIELD_FULL,
+    EL_WALL_EMERALD_RED,
+    EL_WALL_EMERALD_PURPLE,
+    EL_ACID_POOL_TOPLEFT,
+    EL_ACID_POOL_TOPRIGHT,
+    EL_ACID_POOL_BOTTOMLEFT,
+    EL_ACID_POOL_BOTTOM,
+    EL_ACID_POOL_BOTTOMRIGHT,
+    EL_MAGIC_WALL,
+    EL_MAGIC_WALL_DEAD,
+    EL_BD_MAGIC_WALL,
+    EL_BD_MAGIC_WALL_DEAD,
+    EL_AMOEBA_TO_DIAMOND,
+    EL_BLOCKED,
+    EL_SP_EMPTY,
+    EL_SP_BASE,
+    EL_SP_PORT_RIGHT,
+    EL_SP_PORT_DOWN,
+    EL_SP_PORT_LEFT,
+    EL_SP_PORT_UP,
+    EL_SP_GRAVITY_PORT_RIGHT,
+    EL_SP_GRAVITY_PORT_DOWN,
+    EL_SP_GRAVITY_PORT_LEFT,
+    EL_SP_GRAVITY_PORT_UP,
+    EL_SP_PORT_HORIZONTAL,
+    EL_SP_PORT_VERTICAL,
+    EL_SP_PORT_ANY,
+    EL_SP_DISK_RED,
+#if 0
+    EL_SP_DISK_YELLOW,
+#endif
+    EL_SP_CHIP_SINGLE,
+    EL_SP_CHIP_LEFT,
+    EL_SP_CHIP_RIGHT,
+    EL_SP_CHIP_TOP,
+    EL_SP_CHIP_BOTTOM,
+    EL_SP_HARDWARE_GRAY,
+    EL_SP_HARDWARE_GREEN,
+    EL_SP_HARDWARE_BLUE,
+    EL_SP_HARDWARE_RED,
+    EL_SP_HARDWARE_YELLOW,
+    EL_SP_HARDWARE_BASE_1,
+    EL_SP_HARDWARE_BASE_2,
+    EL_SP_HARDWARE_BASE_3,
+    EL_SP_HARDWARE_BASE_4,
+    EL_SP_HARDWARE_BASE_5,
+    EL_SP_HARDWARE_BASE_6,
+    EL_CONVEYOR_BELT_1_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_1_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_1_SWITCH_RIGHT,
+    EL_CONVEYOR_BELT_2_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_2_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_2_SWITCH_RIGHT,
+    EL_CONVEYOR_BELT_3_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_3_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_3_SWITCH_RIGHT,
+    EL_CONVEYOR_BELT_4_SWITCH_LEFT,
+    EL_CONVEYOR_BELT_4_SWITCH_MIDDLE,
+    EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
+    EL_SIGN_EXCLAMATION,
+    EL_SIGN_RADIOACTIVITY,
+    EL_SIGN_STOP,
+    EL_SIGN_WHEELCHAIR,
+    EL_SIGN_PARKING,
+    EL_SIGN_ONEWAY,
+    EL_SIGN_HEART,
+    EL_SIGN_TRIANGLE,
+    EL_SIGN_ROUND,
+    EL_SIGN_EXIT,
+    EL_SIGN_YINYANG,
+    EL_SIGN_OTHER,
+    EL_STEELWALL_SLIPPERY,
+    EL_EMC_STEELWALL_1,
+    EL_EMC_STEELWALL_2,
+    EL_EMC_STEELWALL_3,
+    EL_EMC_STEELWALL_4,
+    EL_EMC_WALL_1,
+    EL_EMC_WALL_2,
+    EL_EMC_WALL_3,
+    EL_EMC_WALL_4,
+    EL_EMC_WALL_5,
+    EL_EMC_WALL_6,
+    EL_EMC_WALL_7,
+    EL_EMC_WALL_8,
+    -1
   };
-  static int ep_belt_switch_num = SIZEOF_ARRAY_INT(ep_belt_switch);
 
-  static int ep_tube[] =
+  static struct
   {
-    EL_TUBE_ANY,
-    EL_TUBE_VERTICAL,
-    EL_TUBE_HORIZONTAL,
-    EL_TUBE_VERTICAL_LEFT,
-    EL_TUBE_VERTICAL_RIGHT,
-    EL_TUBE_HORIZONTAL_UP,
-    EL_TUBE_HORIZONTAL_DOWN,
-    EL_TUBE_LEFT_UP,
-    EL_TUBE_LEFT_DOWN,
-    EL_TUBE_RIGHT_UP,
-    EL_TUBE_RIGHT_DOWN
-  };
-  static int ep_tube_num = SIZEOF_ARRAY_INT(ep_tube);
-
-  static long ep1_bit[] =
-  {
-    EP_BIT_AMOEBALIVE,
-    EP_BIT_AMOEBOID,
-    EP_BIT_SCHLUESSEL,
-    EP_BIT_PFORTE,
-    EP_BIT_SOLID,
-    EP_BIT_INDESTRUCTIBLE,
-    EP_BIT_SLIPPERY,
-    EP_BIT_ENEMY,
-    EP_BIT_MAUER,
-    EP_BIT_CAN_FALL,
-    EP_BIT_CAN_SMASH,
-    EP_BIT_CAN_CHANGE,
-    EP_BIT_CAN_MOVE,
-    EP_BIT_COULD_MOVE,
-    EP_BIT_DONT_TOUCH,
-    EP_BIT_DONT_GO_TO,
-    EP_BIT_MAMPF2,
-    EP_BIT_BD_ELEMENT,
-    EP_BIT_SB_ELEMENT,
-    EP_BIT_GEM,
-    EP_BIT_INACTIVE,
-    EP_BIT_EXPLOSIVE,
-    EP_BIT_MAMPF3,
-    EP_BIT_PUSHABLE,
-    EP_BIT_PLAYER,
-    EP_BIT_HAS_CONTENT,
-    EP_BIT_EATABLE,
-    EP_BIT_SP_ELEMENT,
-    EP_BIT_QUICK_GATE,
-    EP_BIT_OVER_PLAYER,
-    EP_BIT_ACTIVE_BOMB
+    int *elements;
+    int property;
+  } element_properties[] =
+  {
+    { ep_diggable,		EP_DIGGABLE		},
+    { ep_collectible,		EP_COLLECTIBLE		},
+    { 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_can_explode_by_fire,	EP_CAN_EXPLODE_BY_FIRE	},
+    { ep_can_explode_smashed,	EP_CAN_EXPLODE_SMASHED	},
+    { ep_can_explode_impact,	EP_CAN_EXPLODE_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_pushable,		EP_PUSHABLE		},
+
+    { ep_can_be_crumbled,	EP_CAN_BE_CRUMBLED	},
+
+    { 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_active_bomb,		EP_ACTIVE_BOMB		},
+    { ep_inactive,		EP_INACTIVE		},
+
+    { NULL,			-1			}
   };
-  static long ep2_bit[] =
+
+  static int copy_properties[][5] =
   {
-    EP_BIT_BELT,
-    EP_BIT_BELT_ACTIVE,
-    EP_BIT_BELT_SWITCH,
-    EP_BIT_TUBE
-  };
-  static int *ep1_array[] =
-  {
-    ep_amoebalive,
-    ep_amoeboid,
-    ep_schluessel,
-    ep_pforte,
-    ep_solid,
-    ep_indestructible,
-    ep_slippery,
-    ep_enemy,
-    ep_mauer,
-    ep_can_fall,
-    ep_can_smash,
-    ep_can_change,
-    ep_can_move,
-    ep_could_move,
-    ep_dont_touch,
-    ep_dont_go_to,
-    ep_mampf2,
-    ep_bd_element,
-    ep_sb_element,
-    ep_gem,
-    ep_inactive,
-    ep_explosive,
-    ep_mampf3,
-    ep_pushable,
-    ep_player,
-    ep_has_content,
-    ep_eatable,
-    ep_sp_element,
-    ep_quick_gate,
-    ep_over_player,
-    ep_active_bomb
+    {
+      EL_BUG,
+      EL_BUG_LEFT,		EL_BUG_RIGHT,
+      EL_BUG_UP,		EL_BUG_DOWN
+    },
+    {
+      EL_SPACESHIP,
+      EL_SPACESHIP_LEFT,	EL_SPACESHIP_RIGHT,
+      EL_SPACESHIP_UP,		EL_SPACESHIP_DOWN
+    },
+    {
+      EL_BD_BUTTERFLY,
+      EL_BD_BUTTERFLY_LEFT,	EL_BD_BUTTERFLY_RIGHT,
+      EL_BD_BUTTERFLY_UP,	EL_BD_BUTTERFLY_DOWN
+    },
+    {
+      EL_BD_FIREFLY,
+      EL_BD_FIREFLY_LEFT,	EL_BD_FIREFLY_RIGHT,
+      EL_BD_FIREFLY_UP,		EL_BD_FIREFLY_DOWN
+    },
+    {
+      EL_PACMAN,
+      EL_PACMAN_LEFT,		EL_PACMAN_RIGHT,
+      EL_PACMAN_UP,		EL_PACMAN_DOWN
+    },
+    {
+      -1,
+      -1, -1, -1, -1
+    }
   };
-  static int *ep2_array[] =
-  {
-    ep_belt,
-    ep_belt_active,
-    ep_belt_switch,
-    ep_tube
+
+  int i, j, k;
+
+  /* always start with reliable default values (element has no properties) */
+  for (i=0; i < MAX_NUM_ELEMENTS; i++)
+    for (j=0; j < NUM_ELEMENT_PROPERTIES; j++)
+      SET_PROPERTY(i, j, FALSE);
+
+  /* set all base element properties from above array definitions */
+  for (i=0; element_properties[i].elements != NULL; i++)
+    for (j=0; (element_properties[i].elements)[j] != -1; j++)
+      SET_PROPERTY((element_properties[i].elements)[j],
+		   element_properties[i].property, TRUE);
+
+  /* copy properties to some elements that are only stored in level file */
+  for (i=0; i < NUM_ELEMENT_PROPERTIES; i++)
+    for (j=0; copy_properties[j][0] != -1; j++)
+      if (HAS_PROPERTY(copy_properties[j][0], i))
+	for (k=1; k<=4; k++)
+	  SET_PROPERTY(copy_properties[j][k], i, TRUE);
+}
+
+void InitElementPropertiesEngine(int engine_version)
+{
+#if 0
+  static int active_properties[] =
+  {
+    EP_AMOEBALIVE,
+    EP_AMOEBOID,
+    EP_PFORTE,
+    EP_DONT_COLLIDE_WITH,
+    EP_MAUER,
+    EP_CAN_FALL,
+    EP_CAN_SMASH,
+    EP_CAN_PASS_MAGIC_WALL,
+    EP_CAN_MOVE,
+    EP_DONT_TOUCH,
+    EP_DONT_RUN_INTO,
+    EP_GEM,
+    EP_CAN_EXPLODE_BY_FIRE,
+    EP_PUSHABLE,
+    EP_PLAYER,
+    EP_HAS_CONTENT,
+    EP_DIGGABLE,
+    EP_PASSABLE_INSIDE,
+    EP_OVER_PLAYER,
+    EP_ACTIVE_BOMB,
+
+    EP_BELT,
+    EP_BELT_ACTIVE,
+    EP_BELT_SWITCH,
+    EP_WALKABLE_UNDER,
+    EP_EM_SLIPPERY_WALL,
+    EP_CAN_BE_CRUMBLED,
   };
-  static int *ep1_num[] =
-  {
-    &ep_amoebalive_num,
-    &ep_amoeboid_num,
-    &ep_schluessel_num,
-    &ep_pforte_num,
-    &ep_solid_num,
-    &ep_indestructible_num,
-    &ep_slippery_num,
-    &ep_enemy_num,
-    &ep_mauer_num,
-    &ep_can_fall_num,
-    &ep_can_smash_num,
-    &ep_can_change_num,
-    &ep_can_move_num,
-    &ep_could_move_num,
-    &ep_dont_touch_num,
-    &ep_dont_go_to_num,
-    &ep_mampf2_num,
-    &ep_bd_element_num,
-    &ep_sb_element_num,
-    &ep_gem_num,
-    &ep_inactive_num,
-    &ep_explosive_num,
-    &ep_mampf3_num,
-    &ep_pushable_num,
-    &ep_player_num,
-    &ep_has_content_num,
-    &ep_eatable_num,
-    &ep_sp_element_num,
-    &ep_quick_gate_num,
-    &ep_over_player_num,
-    &ep_active_bomb_num
+#endif
+
+  static int no_wall_properties[] =
+  {
+    EP_DIGGABLE,
+    EP_COLLECTIBLE,
+    EP_DONT_RUN_INTO,
+    EP_DONT_COLLIDE_WITH,
+    EP_CAN_MOVE,
+    EP_CAN_FALL,
+    EP_CAN_SMASH_PLAYER,
+    EP_CAN_SMASH_ENEMIES,
+    EP_CAN_SMASH_EVERYTHING,
+    EP_PUSHABLE,
+
+    EP_CAN_BE_CRUMBLED,
+
+    EP_PLAYER,
+    EP_GEM,
+    EP_FOOD_DARK_YAMYAM,
+    EP_FOOD_PENGUIN,
+    EP_BELT,
+    EP_BELT_ACTIVE,
+    EP_TUBE,
+    EP_AMOEBOID,
+    EP_AMOEBALIVE,
+    EP_ACTIVE_BOMB,
+
+    EP_ACCESSIBLE,
+    -1
   };
-  static int *ep2_num[] =
+
+  int i, j;
+
+#if 0
+  InitElementPropertiesStatic();
+#endif
+
+  /* set all special, combined or engine dependent element properties */
+  for (i=0; i < MAX_NUM_ELEMENTS; i++)
   {
-    &ep_belt_num,
-    &ep_belt_active_num,
-    &ep_belt_switch_num,
-    &ep_tube_num
-  };
-  static int num_properties1 = SIZEOF_ARRAY(ep1_num, int *);
-  static int num_properties2 = SIZEOF_ARRAY(ep2_num, int *);
+#if 0
+    for (j=EP_ACCESSIBLE_OVER; j < NUM_ELEMENT_PROPERTIES; j++)
+      SET_PROPERTY(i, j, FALSE);
+#endif
 
-  for (i=0; i<MAX_NUM_ELEMENTS; i++)
+    /* ---------- INACTIVE ------------------------------------------------- */
+    if (i >= EL_CHAR_START && i <= EL_CHAR_END)
+      SET_PROPERTY(i, EP_INACTIVE, TRUE);
+
+    /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
+    SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
+				  IS_WALKABLE_INSIDE(i) ||
+				  IS_WALKABLE_UNDER(i)));
+
+    SET_PROPERTY(i, EP_PASSABLE, (IS_PASSABLE_OVER(i) ||
+				  IS_PASSABLE_INSIDE(i) ||
+				  IS_PASSABLE_UNDER(i)));
+
+    SET_PROPERTY(i, EP_ACCESSIBLE_OVER, (IS_WALKABLE_OVER(i) ||
+					 IS_PASSABLE_OVER(i)));
+
+    SET_PROPERTY(i, EP_ACCESSIBLE_INSIDE, (IS_WALKABLE_INSIDE(i) ||
+					   IS_PASSABLE_INSIDE(i)));
+
+    SET_PROPERTY(i, EP_ACCESSIBLE_UNDER, (IS_WALKABLE_UNDER(i) ||
+					  IS_PASSABLE_UNDER(i)));
+
+    SET_PROPERTY(i, EP_ACCESSIBLE, (IS_WALKABLE(i) ||
+				    IS_PASSABLE(i)));
+
+    /* ---------- SNAPPABLE ------------------------------------------------ */
+    SET_PROPERTY(i, EP_SNAPPABLE, (IS_DIGGABLE(i) ||
+				   IS_COLLECTIBLE(i) ||
+				   IS_SWITCHABLE(i) ||
+				   i == EL_BD_ROCK));
+
+    /* ---------- WALL ----------------------------------------------------- */
+    SET_PROPERTY(i, EP_WALL, TRUE);	/* default: element is wall */
+
+    for (j=0; no_wall_properties[j] != -1; j++)
+      if (HAS_PROPERTY(i, no_wall_properties[j]) ||
+	  i >= EL_FIRST_RUNTIME_UNREAL)
+	SET_PROPERTY(i, EP_WALL, FALSE);
+
+    if (IS_HISTORIC_WALL(i))
+      SET_PROPERTY(i, EP_WALL, TRUE);
+
+    /* ---------- SOLID_FOR_PUSHING ---------------------------------------- */
+    if (engine_version < VERSION_IDENT(2,2,0))
+      SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, IS_HISTORIC_SOLID(i));
+    else
+      SET_PROPERTY(i, EP_SOLID_FOR_PUSHING, (!IS_WALKABLE(i) &&
+					     !IS_DIGGABLE(i) &&
+					     !IS_COLLECTIBLE(i)));
+
+    /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
+
+    if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
+      SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
+    else
+      SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, (IS_CUSTOM_ELEMENT(i) &&
+					    IS_INDESTRUCTIBLE(i)));
+
+    /* ---------- EXPLOSION_PROOF ------------------------------------------ */
+    if (i == EL_FLAMES)
+      SET_PROPERTY(i, EP_EXPLOSION_PROOF, TRUE);
+    else if (engine_version < VERSION_IDENT(2,2,0))
+      SET_PROPERTY(i, EP_EXPLOSION_PROOF, IS_INDESTRUCTIBLE(i));
+    else
+      SET_PROPERTY(i, EP_EXPLOSION_PROOF, (IS_INDESTRUCTIBLE(i) &&
+					   !IS_WALKABLE_OVER(i) &&
+					   !IS_WALKABLE_UNDER(i)));
+
+    if (IS_CUSTOM_ELEMENT(i))
+    {
+      /* ---------- DONT_COLLIDE_WITH / DONT_RUN_INTO ---------------------- */
+      if (DONT_TOUCH(i))
+	SET_PROPERTY(i, EP_DONT_COLLIDE_WITH, TRUE);
+      if (DONT_COLLIDE_WITH(i))
+	SET_PROPERTY(i, EP_DONT_RUN_INTO, TRUE);
+
+      /* ---------- CAN_SMASH_ENEMIES / CAN_SMASH_PLAYER ------------------- */
+      if (CAN_SMASH_EVERYTHING(i))
+	SET_PROPERTY(i, EP_CAN_SMASH_ENEMIES, TRUE);
+      if (CAN_SMASH_ENEMIES(i))
+	SET_PROPERTY(i, EP_CAN_SMASH_PLAYER, TRUE);
+    }
+
+    /* ---------- CAN_SMASH ------------------------------------------------ */
+    SET_PROPERTY(i, EP_CAN_SMASH, (CAN_SMASH_PLAYER(i) ||
+				   CAN_SMASH_ENEMIES(i) ||
+				   CAN_SMASH_EVERYTHING(i)));
+
+    /* ---------- CAN_EXPLODE ---------------------------------------------- */
+    SET_PROPERTY(i, EP_CAN_EXPLODE, (CAN_EXPLODE_BY_FIRE(i) ||
+				     CAN_EXPLODE_SMASHED(i) ||
+				     CAN_EXPLODE_IMPACT(i)));
+
+    /* ---------- CAN_BE_CRUMBLED ------------------------------------------ */
+    SET_PROPERTY(i, EP_CAN_BE_CRUMBLED,
+		 element_info[i].crumbled[ACTION_DEFAULT] != IMG_EMPTY);
+
+#if 0
+    if (CAN_BE_CRUMBLED(i))
+      printf("::: '%s' can be crumbled [%d]\n",
+	     element_info[i].token_name,
+	     element_info[i].crumbled[ACTION_DEFAULT]);
+#endif
+  }
+
+#if 0
+  /* determine inactive elements (used for engine main loop optimization) */
+  for (i=0; i < MAX_NUM_ELEMENTS; i++)
+  {
+    boolean active = FALSE;
+
+    for (j=0; i < NUM_ELEMENT_PROPERTIES; j++)
+    {
+      if (HAS_PROPERTY(i, j))
+	active = TRUE;
+    }
+
+#if 0
+    if (!active)
+      SET_PROPERTY(i, EP_INACTIVE, TRUE);
+#endif
+  }
+#endif
+
+  /* dynamically adjust element properties according to game engine version */
   {
-    Properties1[i] = 0;
-    Properties2[i] = 0;
+    static int ep_em_slippery_wall[] =
+    {
+      EL_STEELWALL,
+      EL_WALL,
+      EL_EXPANDABLE_WALL,
+      EL_EXPANDABLE_WALL_HORIZONTAL,
+      EL_EXPANDABLE_WALL_VERTICAL,
+      EL_EXPANDABLE_WALL_ANY,
+      -1
+    };
+
+    /* special EM style gems behaviour */
+    for (i=0; ep_em_slippery_wall[i] != -1; i++)
+      SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
+		   level.em_slippery_gems);
+
+    /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
+    SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
+		 (level.em_slippery_gems &&
+		  engine_version > VERSION_IDENT(2,0,1)));
   }
 
-  for (i=0; i<num_properties1; i++)
-    for (j=0; j<*(ep1_num[i]); j++)
-      Properties1[(ep1_array[i])[j]] |= ep1_bit[i];
-  for (i=0; i<num_properties2; i++)
-    for (j=0; j<*(ep2_num[i]); j++)
-      Properties2[(ep2_array[i])[j]] |= ep2_bit[i];
+#if 0
+  /* dynamically adjust element properties according to game engine version */
+#if 0
+  if (engine_version < RELEASE_IDENT(2,2,0,7))
+#endif
+  {
+    for (i=0; i < NUM_CUSTOM_ELEMENTS; i++)
+    {
+      int element = EL_CUSTOM_START + i;
 
-  for (i=EL_CHAR_START; i<=EL_CHAR_END; i++)
-    Properties1[i] |= (EP_BIT_CHAR | EP_BIT_INACTIVE);
+      element_info[element].push_delay_fixed = 2;
+      element_info[element].push_delay_random = 8;
+    }
+  }
+#endif
 }
 
 static void InitGlobal()
@@ -2329,7 +2911,7 @@ void Execute_Command(char *command)
     if (access(filename, F_OK) != 0)
       Error(ERR_EXIT, "cannot open file '%s'", filename);
 
-    LoadLevelFromFilename(filename);
+    LoadLevelFromFilename(&level, filename);
     DumpLevel(&level);
 
     exit(0);
@@ -2394,6 +2976,16 @@ static void InitArtworkInfo()
   LoadArtworkInfo();
 }
 
+static char *get_string_in_brackets(char *string)
+{
+  char *string_in_brackets = checked_malloc(strlen(string) + 3);
+
+  sprintf(string_in_brackets, "[%s]", string);
+
+  return string_in_brackets;
+}
+
+#if 0
 static char *get_element_class_token(int element)
 {
   char *element_class_name = element_info[element].class_name;
@@ -2404,35 +2996,62 @@ static char *get_element_class_token(int element)
   return element_class_token;
 }
 
+static char *get_action_class_token(int action)
+{
+  char *action_class_name = &element_action_info[action].suffix[1];
+  char *action_class_token = checked_malloc(strlen(action_class_name) + 3);
+
+  sprintf(action_class_token, "[%s]", action_class_name);
+
+  return action_class_token;
+}
+#endif
+
 static void InitArtworkConfig()
 {
   static char *image_id_prefix[MAX_NUM_ELEMENTS + NUM_FONTS + 1];
-  static char *sound_id_prefix[MAX_NUM_ELEMENTS + MAX_NUM_ELEMENTS + 1];
+  static char *sound_id_prefix[2 * MAX_NUM_ELEMENTS + 1];
   static char *action_id_suffix[NUM_ACTIONS + 1];
   static char *direction_id_suffix[NUM_DIRECTIONS + 1];
   static char *special_id_suffix[NUM_SPECIAL_GFX_ARGS + 1];
   static char *dummy[1] = { NULL };
-  static char *ignore_image_tokens[] =
-  {
-    "name",
-    "sort_priority",
-    "global.num_toons",
-    "menu.draw_xoffset",
-    "menu.draw_yoffset",
-    "menu.draw_xoffset.MAIN",
-    "menu.draw_yoffset.MAIN",
-    "door.step_offset",
-    "door.step_delay",
-    NULL
-  };
-  static char *ignore_sound_tokens[] =
+  static char *ignore_generic_tokens[] =
   {
     "name",
     "sort_priority",
     NULL
   };
+  static char **ignore_image_tokens, **ignore_sound_tokens;
+  int num_ignore_generic_tokens;
+  int num_ignore_image_tokens, num_ignore_sound_tokens;
   int i;
 
+  /* dynamically determine list of generic tokens to be ignored */
+  num_ignore_generic_tokens = 0;
+  for (i=0; ignore_generic_tokens[i] != NULL; i++)
+    num_ignore_generic_tokens++;
+
+  /* dynamically determine list of image tokens to be ignored */
+  num_ignore_image_tokens = num_ignore_generic_tokens;
+  for (i=0; image_config_vars[i].token != NULL; i++)
+    num_ignore_image_tokens++;
+  ignore_image_tokens =
+    checked_malloc((num_ignore_image_tokens + 1) * sizeof(char *));
+  for (i=0; i < num_ignore_generic_tokens; i++)
+    ignore_image_tokens[i] = ignore_generic_tokens[i];
+  for (i=0; i < num_ignore_image_tokens - num_ignore_generic_tokens; i++)
+    ignore_image_tokens[num_ignore_generic_tokens + i] =
+      image_config_vars[i].token;
+  ignore_image_tokens[num_ignore_image_tokens] = NULL;
+
+  /* dynamically determine list of sound tokens to be ignored */
+  num_ignore_sound_tokens = num_ignore_generic_tokens;
+  ignore_sound_tokens =
+    checked_malloc((num_ignore_sound_tokens + 1) * sizeof(char *));
+  for (i=0; i < num_ignore_generic_tokens; i++)
+    ignore_sound_tokens[i] = ignore_generic_tokens[i];
+  ignore_sound_tokens[num_ignore_sound_tokens] = NULL;
+
   for (i=0; i<MAX_NUM_ELEMENTS; i++)
     image_id_prefix[i] = element_info[i].token_name;
   for (i=0; i<NUM_FONTS; i++)
@@ -2442,8 +3061,9 @@ static void InitArtworkConfig()
   for (i=0; i<MAX_NUM_ELEMENTS; i++)
     sound_id_prefix[i] = element_info[i].token_name;
   for (i=0; i<MAX_NUM_ELEMENTS; i++)
-    sound_id_prefix[MAX_NUM_ELEMENTS + i] = get_element_class_token(i);
-  sound_id_prefix[MAX_NUM_ELEMENTS + MAX_NUM_ELEMENTS] = NULL;
+    sound_id_prefix[MAX_NUM_ELEMENTS + i] =
+      get_string_in_brackets(element_info[i].class_name);
+  sound_id_prefix[2 * MAX_NUM_ELEMENTS] = NULL;
 
   for (i=0; i<NUM_ACTIONS; i++)
     action_id_suffix[i] = element_action_info[i].suffix;
@@ -2462,7 +3082,7 @@ static void InitArtworkConfig()
 		special_id_suffix, ignore_image_tokens);
   InitSoundList(sound_config, NUM_SOUND_FILES, sound_config_suffix,
 		sound_id_prefix, action_id_suffix, dummy,
-		dummy, ignore_sound_tokens);
+		special_id_suffix, ignore_sound_tokens);
 }
 
 static void InitMixer()
@@ -2505,20 +3125,27 @@ void InitGfx()
     }
   }
 
+  for (j=0; j < NUM_INITIAL_FONTS; j++)
+  {
+    font_initial[j].num_chars = DEFAULT_NUM_CHARS_PER_FONT;
+    font_initial[j].num_chars_per_line = DEFAULT_NUM_CHARS_PER_LINE;
+  }
+
   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 */
+  bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
+  bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
+
   /* initialize screen properties */
   InitGfxFieldInfo(SX, SY, SXSIZE, SYSIZE,
-		   REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
+		   REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE,
+		   bitmap_db_field);
   InitGfxDoor1Info(DX, DY, DXSIZE, DYSIZE);
   InitGfxDoor2Info(VX, VY, VXSIZE, VYSIZE);
   InitGfxScrollbufferInfo(FXSIZE, FYSIZE);
 
-  /* create additional image buffers for double-buffering */
-  bitmap_db_field = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
-  bitmap_db_door  = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
-
   bitmap_font_initial = LoadCustomImage(filename_font_initial);
 
   for (j=0; j < NUM_INITIAL_FONTS; j++)
@@ -2568,6 +3195,19 @@ void InitLevelArtworkInfo()
 
 static void InitImages()
 {
+#if 1
+  setLevelArtworkDir(artwork.gfx_first);
+#endif
+
+#if 0
+  printf("::: InitImages for '%s' ['%s', '%s'] ['%s', '%s']\n",
+	 leveldir_current->identifier,
+	 artwork.gfx_current_identifier,
+	 artwork.gfx_current->identifier,
+	 leveldir_current->graphics_set,
+	 leveldir_current->graphics_path);
+#endif
+
   ReloadCustomImages();
 
   LoadCustomElementDescriptions();
@@ -2578,12 +3218,16 @@ static void InitImages()
 
 static void InitSound()
 {
+  setLevelArtworkDir(artwork.snd_first);
+
   InitReloadCustomSounds(artwork.snd_current->identifier);
   ReinitializeSounds();
 }
 
 static void InitMusic()
 {
+  setLevelArtworkDir(artwork.mus_first);
+
   InitReloadCustomMusic(artwork.mus_current->identifier);
   ReinitializeMusic();
 }
@@ -2617,14 +3261,28 @@ void ReloadCustomArtwork()
   static boolean last_override_level_graphics = FALSE;
   static boolean last_override_level_sounds = FALSE;
   static boolean last_override_level_music = FALSE;
+  static boolean last_own_level_graphics_set = FALSE;
+  static boolean last_own_level_sounds_set = FALSE;
+  static boolean last_own_level_music_set = FALSE;
+  boolean level_graphics_set_changed = FALSE;
+  boolean level_sounds_set_changed = FALSE;
+  boolean level_music_set_changed = FALSE;
   /* identifier for new artwork; default: artwork configured in setup */
+#if 0
   char *gfx_new_identifier = artwork.gfx_current->identifier;
   char *snd_new_identifier = artwork.snd_current->identifier;
   char *mus_new_identifier = artwork.mus_current->identifier;
+#else
+  char *gfx_new_identifier = artwork.gfx_current_identifier;
+  char *snd_new_identifier = artwork.snd_current_identifier;
+  char *mus_new_identifier = artwork.mus_current_identifier;
+#endif
   boolean redraw_screen = FALSE;
 
+#if 0
   if (leveldir_current_identifier == NULL)
     leveldir_current_identifier = leveldir_current->identifier;
+#endif
 
 #if 0
   printf("CURRENT GFX: '%s' ['%s']\n", artwork.gfx_current->identifier,
@@ -2648,27 +3306,72 @@ void ReloadCustomArtwork()
 
   /* when a new level series was selected, check if there was a change
      in custom artwork stored in level series directory */
-  if (leveldir_current_identifier != leveldir_current->identifier)
+  if (1 || leveldir_current_identifier != leveldir_current->identifier)
   {
+#if 0
     char *identifier_old = leveldir_current_identifier;
+#endif
     char *identifier_new = leveldir_current->identifier;
 
-    if (getTreeInfoFromIdentifier(artwork.gfx_first, identifier_old) !=
-	getTreeInfoFromIdentifier(artwork.gfx_first, identifier_new))
+#if 0
+    printf("::: 1: ['%s'] '%s', '%s' [%lx, %lx]\n",
+	   gfx_new_identifier, identifier_old, identifier_new,
+	   getTreeInfoFromIdentifier(artwork.gfx_first, identifier_old),
+	   getTreeInfoFromIdentifier(artwork.gfx_first, identifier_new));
+#endif
+
+#if 0
+    if (getTreeInfoFromIdentifier(artwork.gfx_first, identifier_new) == NULL)
+      gfx_new_identifier = GRAPHICS_SUBDIR;
+    else if (getTreeInfoFromIdentifier(artwork.gfx_first, identifier_old) !=
+	     getTreeInfoFromIdentifier(artwork.gfx_first, identifier_new))
+      gfx_new_identifier = identifier_new;
+#else
+    if (getTreeInfoFromIdentifier(artwork.gfx_first, identifier_new))
       gfx_new_identifier = identifier_new;
-    if (getTreeInfoFromIdentifier(artwork.snd_first, identifier_old) !=
-	getTreeInfoFromIdentifier(artwork.snd_first, identifier_new))
+    else
+      gfx_new_identifier = setup.graphics_set;
+#endif
+
+#if 0
+    if (getTreeInfoFromIdentifier(artwork.snd_first, identifier_new) == NULL)
+      snd_new_identifier = SOUNDS_SUBDIR;
+    else if (getTreeInfoFromIdentifier(artwork.snd_first, identifier_old) !=
+	     getTreeInfoFromIdentifier(artwork.snd_first, identifier_new))
       snd_new_identifier = identifier_new;
-    if (getTreeInfoFromIdentifier(artwork.mus_first, identifier_new) !=
-	getTreeInfoFromIdentifier(artwork.mus_first, identifier_new))
+#else
+    if (getTreeInfoFromIdentifier(artwork.snd_first, identifier_new))
+      snd_new_identifier = identifier_new;
+    else
+      snd_new_identifier = setup.sounds_set;
+#endif
+
+#if 0
+    if (getTreeInfoFromIdentifier(artwork.mus_first, identifier_new) == NULL)
+      mus_new_identifier = MUSIC_SUBDIR;
+    else if (getTreeInfoFromIdentifier(artwork.mus_first, identifier_new) !=
+	     getTreeInfoFromIdentifier(artwork.mus_first, identifier_new))
+      mus_new_identifier = identifier_new;
+#else
+    if (getTreeInfoFromIdentifier(artwork.mus_first, identifier_new))
       mus_new_identifier = identifier_new;
+    else
+      mus_new_identifier = setup.music_set;
+#endif
+
+#if 0
+    printf("::: 2: ['%s'] '%s', '%s'\n",
+	   gfx_new_identifier, identifier_old, identifier_new);
+#endif
 
+#if 0
     leveldir_current_identifier = leveldir_current->identifier;
+#endif
   }
 
   /* custom level artwork configured in level series configuration file
      always overrides custom level artwork stored in level series directory
-     and (level independant) custom artwork configured in setup menue */
+     and (level independent) custom artwork configured in setup menu */
   if (leveldir_current->graphics_set != NULL)
     gfx_new_identifier = leveldir_current->graphics_set;
   if (leveldir_current->sounds_set != NULL)
@@ -2676,33 +3379,99 @@ void ReloadCustomArtwork()
   if (leveldir_current->music_set != NULL)
     mus_new_identifier = leveldir_current->music_set;
 
+  if (leveldir_current_identifier != leveldir_current->identifier)
+  {
+    if (last_own_level_graphics_set || leveldir_current->graphics_set != NULL)
+      level_graphics_set_changed = TRUE;
+
+    if (last_own_level_sounds_set || leveldir_current->sounds_set != NULL)
+      level_sounds_set_changed = TRUE;
+
+    if (last_own_level_music_set || leveldir_current->music_set != NULL)
+      level_music_set_changed = TRUE;
+
+    last_own_level_graphics_set = (leveldir_current->graphics_set != NULL);
+    last_own_level_sounds_set = (leveldir_current->sounds_set != NULL);
+    last_own_level_music_set = (leveldir_current->music_set != NULL);
+  }
+
+#if 1
+  leveldir_current_identifier = leveldir_current->identifier;
+#endif
+
+  if (setup.override_level_graphics)
+    gfx_new_identifier = artwork.gfx_current->identifier;
+  if (setup.override_level_sounds)
+    snd_new_identifier = artwork.snd_current->identifier;
+  if (setup.override_level_music)
+    mus_new_identifier = artwork.mus_current->identifier;
+
+
+#if 0
+  printf("CHECKING OLD/NEW GFX:\n  OLD: '%s'\n  NEW: '%s' ['%s', '%s'] [%d]\n",
+	 artwork.gfx_current_identifier, gfx_new_identifier,
+	 artwork.gfx_current->identifier, leveldir_current->graphics_set,
+	 level_graphics_set_changed);
+#endif
+
   if (strcmp(artwork.gfx_current_identifier, gfx_new_identifier) != 0 ||
-      last_override_level_graphics != setup.override_level_graphics)
+      last_override_level_graphics != setup.override_level_graphics ||
+      level_graphics_set_changed)
   {
 #if 0
-    printf("RELOADING GRAPHICS '%s' -> '%s' ('%s')\n",
+    printf("RELOADING GRAPHICS '%s' -> '%s' ['%s']\n",
 	   artwork.gfx_current_identifier,
-	   artwork.gfx_current->identifier,
-	   gfx_new_identifier);
+	   gfx_new_identifier,
+	   artwork.gfx_current->identifier);
+#endif
+
+#if 0
+    artwork.gfx_current =
+      getTreeInfoFromIdentifier(artwork.gfx_first, gfx_new_identifier);
+#endif
+#if 0
+    artwork.gfx_current_identifier = gfx_new_identifier;
 #endif
 
+#if 0
     setLevelArtworkDir(artwork.gfx_first);
+#endif
 
     ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
 
     InitImages();
 
+#if 0
+    printf("::: %d\n", menu.list_size[GAME_MODE_LEVELS]);
+#endif
+
     FreeTileClipmasks();
     InitTileClipmasks();
+#if 0
+    artwork.gfx_current =
+      getTreeInfoFromIdentifier(artwork.gfx_first, gfx_new_identifier);
+#endif
+#if 0
+    printf("::: '%s', %lx\n", gfx_new_identifier, artwork.gfx_current);
+#endif
 
+#if 0
     artwork.gfx_current_identifier = artwork.gfx_current->identifier;
+#endif
+    artwork.gfx_current_identifier = gfx_new_identifier;
     last_override_level_graphics = setup.override_level_graphics;
 
+#if 0
+    printf("DONE RELOADING GFX: '%s' ['%s']\n",
+	   artwork.gfx_current_identifier, artwork.gfx_current->identifier);
+#endif
+
     redraw_screen = TRUE;
   }
 
   if (strcmp(artwork.snd_current_identifier, snd_new_identifier) != 0 ||
-      last_override_level_sounds != setup.override_level_sounds)
+      last_override_level_sounds != setup.override_level_sounds ||
+      level_sounds_set_changed)
   {
 #if 0
     printf("RELOADING SOUNDS '%s' -> '%s' ('%s')\n",
@@ -2714,25 +3483,40 @@ void ReloadCustomArtwork()
     /* set artwork path to send it to the sound server process */
     setLevelArtworkDir(artwork.snd_first);
 
+    ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
+
     InitReloadCustomSounds(snd_new_identifier);
     ReinitializeSounds();
 
+#if 0
+    artwork.snd_current =
+      getTreeInfoFromIdentifier(artwork.snd_first, setup.sounds_set);
     artwork.snd_current_identifier = artwork.snd_current->identifier;
+#endif
+    artwork.snd_current_identifier = snd_new_identifier;
     last_override_level_sounds = setup.override_level_sounds;
 
     redraw_screen = TRUE;
   }
 
   if (strcmp(artwork.mus_current_identifier, mus_new_identifier) != 0 ||
-      last_override_level_music != setup.override_level_music)
+      last_override_level_music != setup.override_level_music ||
+      level_music_set_changed)
   {
     /* set artwork path to send it to the sound server process */
     setLevelArtworkDir(artwork.mus_first);
 
+    ClearRectangle(window, 0, 0, WIN_XSIZE, WIN_YSIZE);
+
     InitReloadCustomMusic(mus_new_identifier);
     ReinitializeMusic();
 
+#if 0
+    artwork.mus_current =
+      getTreeInfoFromIdentifier(artwork.mus_first, setup.music_set);
     artwork.mus_current_identifier = artwork.mus_current->identifier;
+#endif
+    artwork.mus_current_identifier = mus_new_identifier;
     last_override_level_music = setup.override_level_music;
 
     redraw_screen = TRUE;
@@ -2748,6 +3532,12 @@ void ReloadCustomArtwork()
   }
 }
 
+void KeyboardAutoRepeatOffUnlessAutoplay()
+{
+  if (global.autoplay_leveldir == NULL)
+    KeyboardAutoRepeatOff();
+}
+
 
 /* ========================================================================= */
 /* OpenAll()                                                                 */
@@ -2770,12 +3560,6 @@ void OpenAll()
     exit(0);	/* never reached */
   }
 
-  InitProgramInfo(UNIX_USERDATA_DIRECTORY,
-		  PROGRAM_TITLE_STRING, getWindowTitleString(),
-		  ICON_TITLE_STRING, X11_ICON_FILENAME, X11_ICONMASK_FILENAME,
-		  MSDOS_POINTER_FILENAME,
-		  COOKIE_PREFIX, FILENAME_PREFIX, GAME_VERSION_ACTUAL);
-
   InitSetup();
 
   InitPlayerInfo();
@@ -2785,8 +3569,10 @@ void OpenAll()
 
   InitCounter();
 
-  InitJoysticks();
   InitRND(NEW_RANDOMIZE);
+  InitSimpleRND(NEW_RANDOMIZE);
+
+  InitJoysticks();
 
   InitVideoDisplay();
   InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
@@ -2794,7 +3580,7 @@ void OpenAll()
 
   InitEventFilter(FilterMouseMotionEvents);
 
-  InitElementProperties();
+  InitElementPropertiesStatic();
 
   InitGfx();
 
@@ -2813,7 +3599,7 @@ void OpenAll()
     return;
   }
 
-  game_status = MAINMENU;
+  game_status = GAME_MODE_MAIN;
 
   DrawMainMenu();
 
@@ -2831,7 +3617,7 @@ void CloseAllAndExit(int exit_value)
   FreeTileClipmasks();
 
   CloseVideoDisplay();
-  ClosePlatformDependantStuff();
+  ClosePlatformDependentStuff();
 
   exit(exit_value);
 }