rnd-20060319-2-src
[rocksndiamonds.git] / src / tools.c
index e630cd18f7654c51546de9d6de66d5f33fdac2b1..3bdf371f09e197e831f5e95ad620ddb7c7f3e937 100644 (file)
@@ -63,6 +63,12 @@ void DumpTile(int x, int y)
   int sx = SCREENX(x);
   int sy = SCREENY(y);
 
+  if (level.game_engine_type == GAME_ENGINE_TYPE_EM)
+  {
+    x--;
+    y--;
+  }
+
   printf_line("-", 79);
   printf("Field Info: SCREEN(%d, %d), LEVEL(%d, %d)\n", sx, sy, x, y);
   printf_line("-", 79);
@@ -127,7 +133,11 @@ void RedrawPlayfield(boolean force_redraw, int x, int y, int width, int height)
   if (game_status == GAME_MODE_PLAYING &&
       level.game_engine_type == GAME_ENGINE_TYPE_EM)
   {
+#if 1
+    RedrawPlayfield_EM(force_redraw);
+#else
     BlitScreenToBitmap_EM(backbuffer);
+#endif
   }
   else if (game_status == GAME_MODE_PLAYING && !game.envelope_active)
   {
@@ -737,11 +747,14 @@ inline static void DrawGraphicShiftedDouble(int x, int y, int dx, int dy,
   int y2 = y + SIGN(dy);
   int anim_frames = graphic_info[graphic].anim_frames;
   int sync_frame = (dx ? ABS(dx) : ABS(dy)) * anim_frames / TILESIZE;
+  boolean draw_start_tile = (cut_mode != CUT_ABOVE);   /* only for falling! */
+  boolean draw_end_tile   = (cut_mode != CUT_BELOW);   /* only for falling! */
 
   /* re-calculate animation frame for two-tile movement animation */
   frame = getGraphicAnimationFrame(graphic, sync_frame);
 
-  if (IN_SCR_FIELD(x1, y1))    /* movement start graphic inside screen area */
+  /* check if movement start graphic inside screen area and should be drawn */
+  if (draw_start_tile && IN_SCR_FIELD(x1, y1))
   {
     getGraphicSourceExt(graphic, frame, &src_bitmap, &src_x, &src_y, TRUE);
 
@@ -762,7 +775,8 @@ inline static void DrawGraphicShiftedDouble(int x, int y, int dx, int dy,
     MarkTileDirty(x1, y1);
   }
 
-  if (IN_SCR_FIELD(x2, y2))    /* movement end graphic inside screen area */
+  /* check if movement end graphic inside screen area and should be drawn */
+  if (draw_end_tile && IN_SCR_FIELD(x2, y2))
   {
     getGraphicSourceExt(graphic, frame, &src_bitmap, &src_x, &src_y, FALSE);
 
@@ -895,10 +909,6 @@ void DrawLevelFieldThruMask(int x, int y)
   DrawLevelElementExt(x, y, 0, 0, Feld[x][y], NO_CUTTING, USE_MASKING);
 }
 
-#define TILE_GFX_ELEMENT(x, y)                                             \
-       (GfxElement[x][y] != EL_UNDEFINED && Feld[x][y] != EL_EXPLOSION ?   \
-        GfxElement[x][y] : Feld[x][y])
-
 static void DrawLevelFieldCrumbledSandExt(int x, int y, int graphic, int frame)
 {
   Bitmap *src_bitmap;
@@ -976,6 +986,11 @@ static void DrawLevelFieldCrumbledSandExt(int x, int y, int graphic, int frame)
          IS_MOVING(xx, yy))
        continue;
 
+#if 1
+      if (Feld[xx][yy] == EL_ELEMENT_SNAPPING)
+       continue;
+#endif
+
       element = TILE_GFX_ELEMENT(xx, yy);
 
       if (!GFX_CRUMBLED(element))
@@ -988,7 +1003,11 @@ static void DrawLevelFieldCrumbledSandExt(int x, int y, int graphic, int frame)
        continue;
 #endif
 
+#if 1
+      graphic = el_act2crm(element, ACTION_DEFAULT);
+#else
       graphic = el_act2crm(Feld[xx][yy], ACTION_DEFAULT);
+#endif
       crumbled_border_size = graphic_info[graphic].border_size;
 
       getGraphicSource(graphic, frame, &src_bitmap, &src_x, &src_y);
@@ -1023,7 +1042,27 @@ void DrawLevelFieldCrumbledSand(int x, int y)
   if (!IN_LEV_FIELD(x, y))
     return;
 
+#if 1
+  /*
+  if (Feld[x][y] == EL_ELEMENT_SNAPPING &&
+      GFX_CRUMBLED(GfxElement[x][y]))
+  */
+
+  if (Feld[x][y] == EL_ELEMENT_SNAPPING &&
+      GfxElement[x][y] != EL_UNDEFINED &&
+      GFX_CRUMBLED(GfxElement[x][y]))
+  {
+    DrawLevelFieldCrumbledSandDigging(x, y, GfxDir[x][y], GfxFrame[x][y]);
+
+    return;
+  }
+#endif
+
+#if 1
+  graphic = el_act2crm(TILE_GFX_ELEMENT(x, y), ACTION_DEFAULT);
+#else
   graphic = el_act2crm(Feld[x][y], ACTION_DEFAULT);
+#endif
 
   DrawLevelFieldCrumbledSandExt(x, y, graphic, 0);
 }
@@ -1698,8 +1737,13 @@ inline void DrawLevelGraphicAnimationIfNeeded(int x, int y, int graphic)
 
   DrawGraphicAnimation(sx, sy, graphic);
 
+#if 1
+  if (GFX_CRUMBLED(TILE_GFX_ELEMENT(x, y)))
+    DrawLevelFieldCrumbledSand(x, y);
+#else
   if (GFX_CRUMBLED(Feld[x][y]))
     DrawLevelFieldCrumbledSand(x, y);
+#endif
 }
 
 void DrawLevelElementAnimationIfNeeded(int x, int y, int element)
@@ -1723,7 +1767,7 @@ void DrawLevelElementAnimationIfNeeded(int x, int y, int element)
 
 static int getPlayerGraphic(struct PlayerInfo *player, int move_dir)
 {
-  if (player->use_murphy_graphic)
+  if (player->use_murphy)
   {
     /* this works only because currently only one player can be "murphy" ... */
     static int last_horizontal_dir = MV_LEFT;
@@ -1742,7 +1786,7 @@ static int getPlayerGraphic(struct PlayerInfo *player, int move_dir)
     return graphic;
   }
   else
-    return el_act_dir2img(player->element_nr, player->GfxAction, move_dir);
+    return el_act_dir2img(player->artwork_element, player->GfxAction,move_dir);
 }
 
 static boolean equalGraphics(int graphic1, int graphic2)
@@ -1787,6 +1831,7 @@ void DrawPlayer(struct PlayerInfo *player)
   int next_jx = jx + dx;
   int next_jy = jy + dy;
   boolean player_is_moving = (player->MovPos ? TRUE : FALSE);
+  boolean player_is_opaque = FALSE;
   int sx = SCREENX(jx), sy = SCREENY(jy);
   int sxx = 0, syy = 0;
   int element = Feld[jx][jy], last_element = Feld[last_jx][last_jy];
@@ -1796,6 +1841,13 @@ void DrawPlayer(struct PlayerInfo *player)
   int last_player_frame = player->Frame;
   int frame = 0;
 
+#if 1
+  /* GfxElement[][] is set to the element the player is digging or collecting;
+     remove also for off-screen player if the player is not moving anymore */
+  if (IN_LEV_FIELD(jx, jy) && !player_is_moving)
+    GfxElement[jx][jy] = EL_UNDEFINED;
+#endif
+
   if (!player->active || !IN_SCR_FIELD(SCREENX(last_jx), SCREENY(last_jy)))
     return;
 
@@ -1820,6 +1872,11 @@ void DrawPlayer(struct PlayerInfo *player)
            player->is_dropping   ? ACTION_DROPPING        :
            player->is_waiting    ? player->action_waiting : ACTION_DEFAULT);
 
+#if 1
+  if (player->is_waiting)
+    move_dir = player->dir_waiting;
+#endif
+
   InitPlayerGfxAnimation(player, action, move_dir);
 
   /* ----------------------------------------------------------------------- */
@@ -1833,12 +1890,14 @@ void DrawPlayer(struct PlayerInfo *player)
       DrawLevelElement(last_jx, last_jy, Back[last_jx][last_jy]);
 
       if (last_element == EL_DYNAMITE_ACTIVE ||
+         last_element == EL_EM_DYNAMITE_ACTIVE ||
          last_element == EL_SP_DISK_RED_ACTIVE)
        DrawDynamite(last_jx, last_jy);
       else
        DrawLevelFieldThruMask(last_jx, last_jy);
     }
     else if (last_element == EL_DYNAMITE_ACTIVE ||
+            last_element == EL_EM_DYNAMITE_ACTIVE ||
             last_element == EL_SP_DISK_RED_ACTIVE)
       DrawDynamite(last_jx, last_jy);
     else
@@ -1866,16 +1925,17 @@ void DrawPlayer(struct PlayerInfo *player)
   {
     if (player_is_moving && GfxElement[jx][jy] != EL_UNDEFINED)
     {
-      if (GFX_CRUMBLED(GfxElement[jx][jy]))
+      int old_element = GfxElement[jx][jy];
+      int old_graphic = el_act_dir2img(old_element, action, move_dir);
+      int frame = getGraphicAnimationFrame(old_graphic, player->StepFrame);
+
+      if (GFX_CRUMBLED(old_element))
        DrawLevelFieldCrumbledSandDigging(jx, jy, move_dir, player->StepFrame);
       else
-      {
-       int old_element = GfxElement[jx][jy];
-       int old_graphic = el_act_dir2img(old_element, action, move_dir);
-       int frame = getGraphicAnimationFrame(old_graphic, player->StepFrame);
-
        DrawGraphic(sx, sy, old_graphic, frame);
-      }
+
+      if (graphic_info[old_graphic].anim_mode & ANIM_OPAQUE_PLAYER)
+       player_is_opaque = TRUE;
     }
     else
     {
@@ -1913,7 +1973,10 @@ void DrawPlayer(struct PlayerInfo *player)
   if (!setup.soft_scrolling && ScreenMovPos)
     sxx = syy = 0;
 
-  DrawGraphicShiftedThruMask(sx, sy, sxx, syy, graphic, frame, NO_CUTTING);
+  if (player_is_opaque)
+    DrawGraphicShifted(sx, sy, sxx, syy, graphic, frame,NO_CUTTING,NO_MASKING);
+  else
+    DrawGraphicShiftedThruMask(sx, sy, sxx, syy, graphic, frame, NO_CUTTING);
 
   if (SHIELD_ON(player))
   {
@@ -1976,7 +2039,9 @@ void DrawPlayer(struct PlayerInfo *player)
 
   if (player_is_moving && last_element == EL_EXPLOSION)
   {
-    int graphic = el_act2img(GfxElement[last_jx][last_jy], ACTION_EXPLODING);
+    int element = (GfxElement[last_jx][last_jy] != EL_UNDEFINED ?
+                  GfxElement[last_jx][last_jy] :  EL_EMPTY);
+    int graphic = el_act2img(element, ACTION_EXPLODING);
     int delay = (game.emulation == EMU_SUPAPLEX ? 3 : 2);
     int phase = ExplodePhase[last_jx][last_jy] - 1;
     int frame = getGraphicAnimationFrame(graphic, phase - delay);
@@ -2423,6 +2488,15 @@ unsigned int MoveDoor(unsigned int door_state)
   unsigned long door_delay_value;
   int stepsize = 1;
 
+  if (door_1.width < 0 || door_1.width > DXSIZE)
+    door_1.width = DXSIZE;
+  if (door_1.height < 0 || door_1.height > DYSIZE)
+    door_1.height = DYSIZE;
+  if (door_2.width < 0 || door_2.width > VXSIZE)
+    door_2.width = VXSIZE;
+  if (door_2.height < 0 || door_2.height > VYSIZE)
+    door_2.height = VYSIZE;
+
   if (door_state == DOOR_GET_STATE)
     return(door1 | door2);
 
@@ -2462,12 +2536,31 @@ unsigned int MoveDoor(unsigned int door_state)
 
   if (door_state & DOOR_ACTION)
   {
-    boolean door_1_done = !(door_state & DOOR_ACTION_1);
-    boolean door_2_done = !(door_state & DOOR_ACTION_2);
-    int start = ((door_state & DOOR_NO_DELAY) ? DXSIZE : 0);
+    boolean handle_door_1 = (door_state & DOOR_ACTION_1);
+    boolean handle_door_2 = (door_state & DOOR_ACTION_2);
+    boolean door_1_done = (!handle_door_1);
+    boolean door_2_done = (!handle_door_2);
+    boolean door_1_vertical = (door_1.anim_mode & ANIM_VERTICAL);
+    boolean door_2_vertical = (door_2.anim_mode & ANIM_VERTICAL);
+    int door_size_1 = (door_1_vertical ? door_1.height : door_1.width);
+    int door_size_2 = (door_2_vertical ? door_2.height : door_2.width);
+    int max_door_size_1 = (door_1_vertical ? DYSIZE : DXSIZE);
+    int max_door_size_2 = (door_2_vertical ? VYSIZE : VXSIZE);
+    int door_size     = (handle_door_1 ? door_size_1     : door_size_2);
+    int max_door_size = (handle_door_1 ? max_door_size_1 : max_door_size_2);
+    int door_skip = max_door_size - door_size;
+#if 1
+    int end = door_size;
+#else
     int end = (door_state & DOOR_ACTION_1 &&
-              door_1.anim_mode == ANIM_VERTICAL ? DYSIZE : DXSIZE);
-    int x;
+              door_1.anim_mode & ANIM_VERTICAL ? DYSIZE : DXSIZE);
+#endif
+#if 1
+    int start = ((door_state & DOOR_NO_DELAY) ? end : 0);
+#else
+    int start = ((door_state & DOOR_NO_DELAY) ? end : offset_skip);
+#endif
+    int k;
 
     if (!(door_state & DOOR_NO_DELAY) && !setup.quick_doors)
     {
@@ -2478,26 +2571,34 @@ unsigned int MoveDoor(unsigned int door_state)
        PlaySoundStereo(SND_DOOR_CLOSING, SOUND_MIDDLE);
     }
 
-    for (x = start; x <= end && !(door_1_done && door_2_done); x += stepsize)
+    for (k = start; k <= end && !(door_1_done && door_2_done); k += stepsize)
     {
+      int x = k;
       Bitmap *bitmap = graphic_info[IMG_GLOBAL_DOOR].bitmap;
       GC gc = bitmap->stored_clip_gc;
 
       if (door_state & DOOR_ACTION_1)
       {
        int a = MIN(x * door_1.step_offset, end);
-       int i = (door_state & DOOR_OPEN_1 ? end - a : a);
+       int p = (door_state & DOOR_OPEN_1 ? end - a : a);
+       int i = p + door_skip;
 
-       if (x <= a)
+       if (door_1.anim_mode & ANIM_STATIC_PANEL)
+       {
+         BlitBitmap(bitmap_db_door, drawto,
+                    DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1,
+                    DXSIZE, DYSIZE, DX, DY);
+       }
+       else if (x <= a)
        {
          BlitBitmap(bitmap_db_door, drawto,
-                    DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1 + i / 2,
-                    DXSIZE, DYSIZE - i / 2, DX, DY);
+                    DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1 + p / 2,
+                    DXSIZE, DYSIZE - p / 2, DX, DY);
 
-         ClearRectangle(drawto, DX, DY + DYSIZE - i / 2, DXSIZE, i / 2);
+         ClearRectangle(drawto, DX, DY + DYSIZE - p / 2, DXSIZE, p / 2);
        }
 
-       if (door_1.anim_mode == ANIM_HORIZONTAL && x <= DXSIZE)
+       if (door_1.anim_mode & ANIM_HORIZONTAL && x <= DXSIZE)
        {
          int src1_x = DXSIZE,          src1_y = DOOR_GFX_PAGEY1;
          int dst1_x = DX + DXSIZE - i, dst1_y = DY;
@@ -2513,7 +2614,7 @@ unsigned int MoveDoor(unsigned int door_state)
          BlitBitmapMasked(bitmap, drawto, src2_x, src2_y, width, height,
                           dst2_x, dst2_y);
        }
-       else if (door_1.anim_mode == ANIM_VERTICAL && x <= DYSIZE)
+       else if (door_1.anim_mode & ANIM_VERTICAL && x <= DYSIZE)
        {
          int src1_x = DXSIZE,          src1_y = DOOR_GFX_PAGEY1;
          int dst1_x = DX,              dst1_y = DY + DYSIZE - i;
@@ -2570,19 +2671,26 @@ unsigned int MoveDoor(unsigned int door_state)
 
       if (door_state & DOOR_ACTION_2)
       {
-       int a = MIN(x * door_2.step_offset, VXSIZE);
-       int i = (door_state & DOOR_OPEN_2 ? VXSIZE - a : a);
+       int a = MIN(x * door_2.step_offset, door_size_2);
+       int p = (door_state & DOOR_OPEN_2 ? door_size_2 - a : a);
+       int i = p + door_skip;
 
-       if (x <= VYSIZE)
+       if (door_2.anim_mode & ANIM_STATIC_PANEL)
        {
          BlitBitmap(bitmap_db_door, drawto,
-                    DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY2 + i / 2,
-                    VXSIZE, VYSIZE - i / 2, VX, VY);
+                    DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY2,
+                    VXSIZE, VYSIZE, VX, VY);
+       }
+       else if (x <= VYSIZE)
+       {
+         BlitBitmap(bitmap_db_door, drawto,
+                    DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY2 + p / 2,
+                    VXSIZE, VYSIZE - p / 2, VX, VY);
 
-         ClearRectangle(drawto, VX, VY + VYSIZE - i / 2, VXSIZE, i / 2);
+         ClearRectangle(drawto, VX, VY + VYSIZE - p / 2, VXSIZE, p / 2);
        }
 
-       if (door_2.anim_mode == ANIM_HORIZONTAL && x <= VXSIZE)
+       if (door_2.anim_mode & ANIM_HORIZONTAL && x <= VXSIZE)
        {
          int src1_x = VXSIZE,          src1_y = DOOR_GFX_PAGEY2;
          int dst1_x = VX + VXSIZE - i, dst1_y = VY;
@@ -2598,7 +2706,7 @@ unsigned int MoveDoor(unsigned int door_state)
          BlitBitmapMasked(bitmap, drawto, src2_x, src2_y, width, height,
                           dst2_x, dst2_y);
        }
-       else if (door_2.anim_mode == ANIM_VERTICAL && x <= VYSIZE)
+       else if (door_2.anim_mode & ANIM_VERTICAL && x <= VYSIZE)
        {
          int src1_x = VXSIZE,          src1_y = DOOR_GFX_PAGEY2;
          int dst1_x = VX,              dst1_y = VY + VYSIZE - i;
@@ -2667,8 +2775,8 @@ void DrawSpecialEditorDoor()
             DOOR_GFX_PAGEX7, 0, EXSIZE + 8, 8,
             EX - 4, EY - 12);
   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, drawto,
-            EX - 4, VY - 4, EXSIZE + 8, EYSIZE - VYSIZE + 4,
-            EX - 4, EY - 4);
+            EX - 6, VY - 4, EXSIZE + 12, EYSIZE - VYSIZE + 4,
+            EX - 6, EY - 4);
 
   redraw_mask |= REDRAW_ALL;
 }
@@ -2677,8 +2785,8 @@ void UndrawSpecialEditorDoor()
 {
   /* draw normal tape recorder window */
   BlitBitmap(graphic_info[IMG_GLOBAL_BORDER].bitmap, drawto,
-            EX - 4, EY - 12, EXSIZE + 8, EYSIZE - VYSIZE + 12,
-            EX - 4, EY - 12);
+            EX - 6, EY - 12, EXSIZE + 12, EYSIZE - VYSIZE + 12,
+            EX - 6, EY - 12);
 
   redraw_mask |= REDRAW_ALL;
 }
@@ -3266,11 +3374,11 @@ em_object_mapping_list[] =
   },
   {
     Yandroid_ne,                       FALSE,  FALSE,
-    EL_EMC_ANDROID,                    ACTION_TURNING_FROM_UP, MV_BIT_RIGHT
+    EL_EMC_ANDROID,                    ACTION_GROWING, MV_BIT_UPRIGHT
   },
   {
     Yandroid_neB,                      FALSE,  TRUE,
-    EL_EMC_ANDROID,                    ACTION_TURNING_FROM_UP, MV_BIT_RIGHT
+    EL_EMC_ANDROID,                    ACTION_SHRINKING, MV_BIT_UPRIGHT
   },
   {
     Yandroid_e,                                FALSE,  FALSE,
@@ -3282,11 +3390,11 @@ em_object_mapping_list[] =
   },
   {
     Yandroid_se,                       FALSE,  FALSE,
-    EL_EMC_ANDROID,                    ACTION_TURNING_FROM_DOWN, MV_BIT_RIGHT
+    EL_EMC_ANDROID,                    ACTION_GROWING, MV_BIT_DOWNRIGHT
   },
   {
     Yandroid_seB,                      FALSE,  TRUE,
-    EL_EMC_ANDROID,                    ACTION_TURNING_FROM_DOWN, MV_BIT_RIGHT
+    EL_EMC_ANDROID,                    ACTION_SHRINKING, MV_BIT_DOWNRIGHT
   },
   {
     Yandroid_s,                                FALSE,  FALSE,
@@ -3298,11 +3406,11 @@ em_object_mapping_list[] =
   },
   {
     Yandroid_sw,                       FALSE,  FALSE,
-    EL_EMC_ANDROID,                    ACTION_TURNING_FROM_DOWN, MV_BIT_LEFT
+    EL_EMC_ANDROID,                    ACTION_GROWING, MV_BIT_DOWNLEFT
   },
   {
     Yandroid_swB,                      FALSE,  TRUE,
-    EL_EMC_ANDROID,                    ACTION_TURNING_FROM_DOWN, MV_BIT_LEFT
+    EL_EMC_ANDROID,                    ACTION_SHRINKING, MV_BIT_DOWNLEFT
   },
   {
     Yandroid_w,                                FALSE,  FALSE,
@@ -3314,11 +3422,11 @@ em_object_mapping_list[] =
   },
   {
     Yandroid_nw,                       FALSE,  FALSE,
-    EL_EMC_ANDROID,                    ACTION_TURNING_FROM_UP, MV_BIT_LEFT
+    EL_EMC_ANDROID,                    ACTION_GROWING, MV_BIT_UPLEFT
   },
   {
     Yandroid_nwB,                      FALSE,  TRUE,
-    EL_EMC_ANDROID,                    ACTION_TURNING_FROM_UP, MV_BIT_LEFT
+    EL_EMC_ANDROID,                    ACTION_SHRINKING, MV_BIT_UPLEFT
   },
   {
     Xspring,                           TRUE,   FALSE,
@@ -3366,35 +3474,35 @@ em_object_mapping_list[] =
   },
   {
     Yspring_kill_e,                    FALSE,  FALSE,
-    EL_ROBOT,                          ACTION_SLURPED_BY_SPRING, MV_BIT_RIGHT
+    EL_SPRING,                         ACTION_EATING, MV_BIT_RIGHT
   },
   {
     Yspring_kill_eB,                   FALSE,  TRUE,
-    EL_ROBOT,                          ACTION_SLURPED_BY_SPRING, MV_BIT_RIGHT
+    EL_SPRING,                         ACTION_EATING, MV_BIT_RIGHT
   },
   {
     Yspring_kill_w,                    FALSE,  FALSE,
-    EL_ROBOT,                          ACTION_SLURPED_BY_SPRING, MV_BIT_LEFT
+    EL_SPRING,                         ACTION_EATING, MV_BIT_LEFT
   },
   {
     Yspring_kill_wB,                   FALSE,  TRUE,
-    EL_ROBOT,                          ACTION_SLURPED_BY_SPRING, MV_BIT_LEFT
+    EL_SPRING,                         ACTION_EATING, MV_BIT_LEFT
   },
   {
     Xeater_n,                          TRUE,   FALSE,
-    EL_YAMYAM,                         -1, -1
+    EL_YAMYAM_UP,                      -1, -1
   },
   {
-    Xeater_e,                          FALSE,  FALSE,
-    EL_YAMYAM,                         -1, -1
+    Xeater_e,                          TRUE,   FALSE,
+    EL_YAMYAM_RIGHT,                   -1, -1
   },
   {
-    Xeater_w,                          FALSE,  FALSE,
-    EL_YAMYAM,                         -1, -1
+    Xeater_w,                          TRUE,   FALSE,
+    EL_YAMYAM_LEFT,                    -1, -1
   },
   {
-    Xeater_s,                          FALSE,  FALSE,
-    EL_YAMYAM,                         -1, -1
+    Xeater_s,                          TRUE,   FALSE,
+    EL_YAMYAM_DOWN,                    -1, -1
   },
   {
     Yeater_n,                          FALSE,  FALSE,
@@ -4010,27 +4118,27 @@ em_object_mapping_list[] =
   },
   {
     Xdynamite,                         TRUE,   FALSE,
-    EL_DYNAMITE,                       -1, -1
+    EL_EM_DYNAMITE,                    -1, -1
   },
   {
     Ydynamite_eat,                     FALSE,  FALSE,
-    EL_DYNAMITE,                       ACTION_COLLECTING, -1
+    EL_EM_DYNAMITE,                    ACTION_COLLECTING, -1
   },
   {
     Xdynamite_1,                       TRUE,   FALSE,
-    EL_DYNAMITE_ACTIVE,                        -1, -1
+    EL_EM_DYNAMITE_ACTIVE,             -1, -1
   },
   {
     Xdynamite_2,                       FALSE,  FALSE,
-    EL_DYNAMITE_ACTIVE,                        -1, -1
+    EL_EM_DYNAMITE_ACTIVE,             -1, -1
   },
   {
     Xdynamite_3,                       FALSE,  FALSE,
-    EL_DYNAMITE_ACTIVE,                        -1, -1
+    EL_EM_DYNAMITE_ACTIVE,             -1, -1
   },
   {
     Xdynamite_4,                       FALSE,  FALSE,
-    EL_DYNAMITE_ACTIVE,                        -1, -1
+    EL_EM_DYNAMITE_ACTIVE,             -1, -1
   },
   {
     Xbumper,                           TRUE,   FALSE,
@@ -4504,10 +4612,6 @@ em_object_mapping_list[] =
     Xalpha_copyr,                      TRUE,   FALSE,
     EL_CHAR('©'),                      -1, -1
   },
-  {
-    Xalpha_copyr,                      TRUE,   FALSE,
-    EL_CHAR('©'),                      -1, -1
-  },
 
   {
     Xboom_bug,                         FALSE,  FALSE,
@@ -4667,6 +4771,110 @@ em_player_mapping_list[] =
     SPR_still,                         1,
     EL_PLAYER_2,                       ACTION_DEFAULT, -1,
   },
+  {
+    SPR_walk + 0,                      2,
+    EL_PLAYER_3,                       ACTION_MOVING, MV_BIT_UP,
+  },
+  {
+    SPR_walk + 1,                      2,
+    EL_PLAYER_3,                       ACTION_MOVING, MV_BIT_RIGHT,
+  },
+  {
+    SPR_walk + 2,                      2,
+    EL_PLAYER_3,                       ACTION_MOVING, MV_BIT_DOWN,
+  },
+  {
+    SPR_walk + 3,                      2,
+    EL_PLAYER_3,                       ACTION_MOVING, MV_BIT_LEFT,
+  },
+  {
+    SPR_push + 0,                      2,
+    EL_PLAYER_3,                       ACTION_PUSHING, MV_BIT_UP,
+  },
+  {
+    SPR_push + 1,                      2,
+    EL_PLAYER_3,                       ACTION_PUSHING, MV_BIT_RIGHT,
+  },
+  {
+    SPR_push + 2,                      2,
+    EL_PLAYER_3,                       ACTION_PUSHING, MV_BIT_DOWN,
+  },
+  {
+    SPR_push + 3,                      2,
+    EL_PLAYER_3,                       ACTION_PUSHING, MV_BIT_LEFT,
+  },
+  {
+    SPR_spray + 0,                     2,
+    EL_PLAYER_3,                       ACTION_SNAPPING, MV_BIT_UP,
+  },
+  {
+    SPR_spray + 1,                     2,
+    EL_PLAYER_3,                       ACTION_SNAPPING, MV_BIT_RIGHT,
+  },
+  {
+    SPR_spray + 2,                     2,
+    EL_PLAYER_3,                       ACTION_SNAPPING, MV_BIT_DOWN,
+  },
+  {
+    SPR_spray + 3,                     2,
+    EL_PLAYER_3,                       ACTION_SNAPPING, MV_BIT_LEFT,
+  },
+  {
+    SPR_walk + 0,                      3,
+    EL_PLAYER_4,                       ACTION_MOVING, MV_BIT_UP,
+  },
+  {
+    SPR_walk + 1,                      3,
+    EL_PLAYER_4,                       ACTION_MOVING, MV_BIT_RIGHT,
+  },
+  {
+    SPR_walk + 2,                      3,
+    EL_PLAYER_4,                       ACTION_MOVING, MV_BIT_DOWN,
+  },
+  {
+    SPR_walk + 3,                      3,
+    EL_PLAYER_4,                       ACTION_MOVING, MV_BIT_LEFT,
+  },
+  {
+    SPR_push + 0,                      3,
+    EL_PLAYER_4,                       ACTION_PUSHING, MV_BIT_UP,
+  },
+  {
+    SPR_push + 1,                      3,
+    EL_PLAYER_4,                       ACTION_PUSHING, MV_BIT_RIGHT,
+  },
+  {
+    SPR_push + 2,                      3,
+    EL_PLAYER_4,                       ACTION_PUSHING, MV_BIT_DOWN,
+  },
+  {
+    SPR_push + 3,                      3,
+    EL_PLAYER_4,                       ACTION_PUSHING, MV_BIT_LEFT,
+  },
+  {
+    SPR_spray + 0,                     3,
+    EL_PLAYER_4,                       ACTION_SNAPPING, MV_BIT_UP,
+  },
+  {
+    SPR_spray + 1,                     3,
+    EL_PLAYER_4,                       ACTION_SNAPPING, MV_BIT_RIGHT,
+  },
+  {
+    SPR_spray + 2,                     3,
+    EL_PLAYER_4,                       ACTION_SNAPPING, MV_BIT_DOWN,
+  },
+  {
+    SPR_spray + 3,                     3,
+    EL_PLAYER_4,                       ACTION_SNAPPING, MV_BIT_LEFT,
+  },
+  {
+    SPR_still,                         2,
+    EL_PLAYER_3,                       ACTION_DEFAULT, -1,
+  },
+  {
+    SPR_still,                         3,
+    EL_PLAYER_4,                       ACTION_DEFAULT, -1,
+  },
 
   {
     -1,                                        -1,
@@ -4731,639 +4939,83 @@ int map_element_EM_to_RND(int element_em)
   return EL_UNKNOWN;
 }
 
-#if 0
-
-int map_element_RND_to_EM(int element_rnd)
+void map_android_clone_elements_RND_to_EM(struct LevelInfo *level)
 {
-  static unsigned short mapping_RND_to_EM[NUM_FILE_ELEMENTS];
-  static boolean mapping_initialized = FALSE;
+  struct LevelInfo_EM *level_em = level->native_em_level;
+  struct LEVEL *lev = level_em->lev;
+  int i, j;
 
-  struct
-  {
-    int element_em;
-    int element_rnd;
-  }
-  mapping_RND_to_EM_list[] =
-  {
-    { Xblank,                  EL_EMPTY                        },
-    { Xstone,                  EL_ROCK                         },
-    { Xnut,                    EL_NUT                          },
-    { Xbug_n,                  EL_BUG_UP                       },
-    { Xbug_e,                  EL_BUG_RIGHT                    },
-    { Xbug_s,                  EL_BUG_DOWN                     },
-    { Xbug_w,                  EL_BUG_LEFT                     },
-    { Xtank_n,                 EL_SPACESHIP_UP                 },
-    { Xtank_e,                 EL_SPACESHIP_RIGHT              },
-    { Xtank_s,                 EL_SPACESHIP_DOWN               },
-    { Xtank_w,                 EL_SPACESHIP_LEFT               },
-    { Xandroid,                        EL_EMC_ANDROID                  },
-    { Xandroid_1_n,            EL_EMC_ANDROID_UP               },
-    { Xandroid_1_e,            EL_EMC_ANDROID_RIGHT            },
-    { Xandroid_1_w,            EL_EMC_ANDROID_LEFT             },
-    { Xandroid_1_s,            EL_EMC_ANDROID_DOWN             },
-    { Xspring,                 EL_SPRING                       },
-    { Xeater_n,                        EL_YAMYAM                       },
-    { Xalien,                  EL_ROBOT                        },
-    { Xemerald,                        EL_EMERALD                      },
-    { Xdiamond,                        EL_DIAMOND                      },
-    { Xdrip_fall,              EL_AMOEBA_DROP                  },
-    { Xbomb,                   EL_BOMB                         },
-    { Xballoon,                        EL_BALLOON                      },
-    { Xgrass,                  EL_EMC_GRASS                    },
-    { Xdirt,                   EL_SAND                         },
-    { Xacid_ne,                        EL_ACID_POOL_TOPRIGHT           },
-    { Xacid_se,                        EL_ACID_POOL_BOTTOMRIGHT        },
-    { Xacid_s,                 EL_ACID_POOL_BOTTOM             },
-    { Xacid_sw,                        EL_ACID_POOL_BOTTOMLEFT         },
-    { Xacid_nw,                        EL_ACID_POOL_TOPLEFT            },
-    { Xacid_1,                 EL_ACID                         },
-    { Xball_1,                 EL_EMC_MAGIC_BALL               },
-    { Xgrow_ns,                        EL_EMC_GROW                     },
-    { Xwonderwall,             EL_MAGIC_WALL                   },
-    { Xamoeba_1,               EL_AMOEBA_WET                   },
-    { Xdoor_1,                 EL_EM_GATE_1                    },
-    { Xdoor_2,                 EL_EM_GATE_2                    },
-    { Xdoor_3,                 EL_EM_GATE_3                    },
-    { Xdoor_4,                 EL_EM_GATE_4                    },
-    { Xdoor_5,                 EL_EMC_GATE_5                   },
-    { Xdoor_6,                 EL_EMC_GATE_6                   },
-    { Xdoor_7,                 EL_EMC_GATE_7                   },
-    { Xdoor_8,                 EL_EMC_GATE_8                   },
-    { Xkey_1,                  EL_EM_KEY_1                     },
-    { Xkey_2,                  EL_EM_KEY_2                     },
-    { Xkey_3,                  EL_EM_KEY_3                     },
-    { Xkey_4,                  EL_EM_KEY_4                     },
-    { Xkey_5,                  EL_EMC_KEY_5                    },
-    { Xkey_6,                  EL_EMC_KEY_6                    },
-    { Xkey_7,                  EL_EMC_KEY_7                    },
-    { Xkey_8,                  EL_EMC_KEY_8                    },
-    { Xwind_n,                 EL_BALLOON_SWITCH_UP            },
-    { Xwind_e,                 EL_BALLOON_SWITCH_RIGHT         },
-    { Xwind_s,                 EL_BALLOON_SWITCH_DOWN          },
-    { Xwind_w,                 EL_BALLOON_SWITCH_LEFT          },
-    { Xwind_nesw,              EL_BALLOON_SWITCH_ANY           },
-    { Xwind_stop,              EL_BALLOON_SWITCH_NONE          },
-    { Xexit,                   EL_EXIT_CLOSED                  },
-    { Xexit_1,                 EL_EXIT_OPEN                    },
-    { Xdynamite,               EL_DYNAMITE                     },
-    { Xdynamite_1,             EL_DYNAMITE_ACTIVE              },
-    { Xbumper,                 EL_EMC_BUMPER                   },
-    { Xwheel,                  EL_ROBOT_WHEEL                  },
-    { Xswitch,                 EL_UNKNOWN                      },
-    { Xsand,                   EL_QUICKSAND_EMPTY              },
-    { Xsand_stone,             EL_QUICKSAND_FULL               },
-    { Xplant,                  EL_EMC_PLANT                    },
-    { Xlenses,                 EL_EMC_LENSES                   },
-    { Xmagnify,                        EL_EMC_MAGNIFIER                },
-    { Xdripper,                        EL_UNKNOWN                      },
-    { Xfake_blank,             EL_INVISIBLE_WALL               },
-    { Xfake_grass,             EL_INVISIBLE_SAND               },
-    { Xfake_door_1,            EL_EM_GATE_1_GRAY               },
-    { Xfake_door_2,            EL_EM_GATE_2_GRAY               },
-    { Xfake_door_3,            EL_EM_GATE_3_GRAY               },
-    { Xfake_door_4,            EL_EM_GATE_4_GRAY               },
-    { Xfake_door_5,            EL_EMC_GATE_5_GRAY              },
-    { Xfake_door_6,            EL_EMC_GATE_6_GRAY              },
-    { Xfake_door_7,            EL_EMC_GATE_7_GRAY              },
-    { Xfake_door_8,            EL_EMC_GATE_8_GRAY              },
-    { Xsteel_1,                        EL_STEELWALL                    },
-    { Xsteel_2,                        EL_UNKNOWN                      },
-    { Xsteel_3,                        EL_EMC_STEELWALL_1              },
-    { Xsteel_4,                        EL_UNKNOWN                      },
-    { Xwall_1,                 EL_WALL                         },
-    { Xwall_2,                 EL_UNKNOWN                      },
-    { Xwall_3,                 EL_UNKNOWN                      },
-    { Xwall_4,                 EL_UNKNOWN                      },
-    { Xround_wall_1,           EL_WALL_SLIPPERY                },
-    { Xround_wall_2,           EL_UNKNOWN                      },
-    { Xround_wall_3,           EL_UNKNOWN                      },
-    { Xround_wall_4,           EL_UNKNOWN                      },
-    { Xdecor_1,                        EL_UNKNOWN                      },
-    { Xdecor_2,                        EL_EMC_WALL_6                   },
-    { Xdecor_3,                        EL_EMC_WALL_4                   },
-    { Xdecor_4,                        EL_EMC_WALL_5                   },
-    { Xdecor_5,                        EL_EMC_WALL_7                   },
-    { Xdecor_6,                        EL_EMC_WALL_8                   },
-    { Xdecor_7,                        EL_UNKNOWN                      },
-    { Xdecor_8,                        EL_EMC_WALL_1                   },
-    { Xdecor_9,                        EL_EMC_WALL_2                   },
-    { Xdecor_10,               EL_EMC_WALL_3                   },
-    { Xdecor_11,               EL_UNKNOWN                      },
-    { Xdecor_12,               EL_UNKNOWN                      },
-    { Xalpha_0,                        EL_CHAR('0')                    },
-    { Xalpha_1,                        EL_CHAR('1')                    },
-    { Xalpha_2,                        EL_CHAR('2')                    },
-    { Xalpha_3,                        EL_CHAR('3')                    },
-    { Xalpha_4,                        EL_CHAR('4')                    },
-    { Xalpha_5,                        EL_CHAR('5')                    },
-    { Xalpha_6,                        EL_CHAR('6')                    },
-    { Xalpha_7,                        EL_CHAR('7')                    },
-    { Xalpha_8,                        EL_CHAR('8')                    },
-    { Xalpha_9,                        EL_CHAR('9')                    },
-    { Xalpha_excla,            EL_CHAR('!')                    },
-    { Xalpha_quote,            EL_CHAR('"')                    },
-    { Xalpha_comma,            EL_CHAR(',')                    },
-    { Xalpha_minus,            EL_CHAR('-')                    },
-    { Xalpha_perio,            EL_CHAR('.')                    },
-    { Xalpha_colon,            EL_CHAR(':')                    },
-    { Xalpha_quest,            EL_CHAR('?')                    },
-    { Xalpha_a,                        EL_CHAR('A')                    },
-    { Xalpha_b,                        EL_CHAR('B')                    },
-    { Xalpha_c,                        EL_CHAR('C')                    },
-    { Xalpha_d,                        EL_CHAR('D')                    },
-    { Xalpha_e,                        EL_CHAR('E')                    },
-    { Xalpha_f,                        EL_CHAR('F')                    },
-    { Xalpha_g,                        EL_CHAR('G')                    },
-    { Xalpha_h,                        EL_CHAR('H')                    },
-    { Xalpha_i,                        EL_CHAR('I')                    },
-    { Xalpha_j,                        EL_CHAR('J')                    },
-    { Xalpha_k,                        EL_CHAR('K')                    },
-    { Xalpha_l,                        EL_CHAR('L')                    },
-    { Xalpha_m,                        EL_CHAR('M')                    },
-    { Xalpha_n,                        EL_CHAR('N')                    },
-    { Xalpha_o,                        EL_CHAR('O')                    },
-    { Xalpha_p,                        EL_CHAR('P')                    },
-    { Xalpha_q,                        EL_CHAR('Q')                    },
-    { Xalpha_r,                        EL_CHAR('R')                    },
-    { Xalpha_s,                        EL_CHAR('S')                    },
-    { Xalpha_t,                        EL_CHAR('T')                    },
-    { Xalpha_u,                        EL_CHAR('U')                    },
-    { Xalpha_v,                        EL_CHAR('V')                    },
-    { Xalpha_w,                        EL_CHAR('W')                    },
-    { Xalpha_x,                        EL_CHAR('X')                    },
-    { Xalpha_y,                        EL_CHAR('Y')                    },
-    { Xalpha_z,                        EL_CHAR('Z')                    },
-    { Xalpha_arrow_e,          EL_CHAR('>')                    },
-    { Xalpha_arrow_w,          EL_CHAR('<')                    },
-    { Xalpha_copyr,            EL_CHAR('©')                    },
-
-    { Zplayer,                 EL_PLAYER_1                     },
-    { Zplayer,                 EL_PLAYER_2                     },
-    { Zplayer,                 EL_PLAYER_3                     },
-    { Zplayer,                 EL_PLAYER_4                     },
-
-    { ZBORDER,                 EL_EMC_LEVEL_BORDER             },
-
-    { -1,                      -1                              }
-  };
+  for (i = 0; i < TILE_MAX; i++)
+    lev->android_array[i] = Xblank;
 
-  if (!mapping_initialized)
+  for (i = 0; i < level->num_android_clone_elements; i++)
   {
-    int i;
-
-    /* return "Xalpha_quest" for all undefined elements in mapping array */
-    for (i = 0; i < NUM_FILE_ELEMENTS; i++)
-      mapping_RND_to_EM[i] = Xalpha_quest;
-
-    for (i = 0; mapping_RND_to_EM_list[i].element_rnd != -1; i++)
-      mapping_RND_to_EM[mapping_RND_to_EM_list[i].element_rnd] =
-       mapping_RND_to_EM_list[i].element_em;
+    int element_rnd = level->android_clone_element[i];
+    int element_em = map_element_RND_to_EM(element_rnd);
 
-    mapping_initialized = TRUE;
+    for (j = 0; em_object_mapping_list[j].element_em != -1; j++)
+      if (em_object_mapping_list[j].element_rnd == element_rnd)
+       lev->android_array[em_object_mapping_list[j].element_em] = element_em;
   }
-
-  if (element_rnd >= 0 && element_rnd < NUM_FILE_ELEMENTS)
-    return mapping_RND_to_EM[element_rnd];
-
-  Error(ERR_WARN, "invalid RND level element %d", element_rnd);
-
-  return EL_UNKNOWN;
 }
 
-int map_element_EM_to_RND(int element_em)
+void map_android_clone_elements_EM_to_RND(struct LevelInfo *level)
 {
-  static unsigned short mapping_EM_to_RND[TILE_MAX];
-  static boolean mapping_initialized = FALSE;
+  struct LevelInfo_EM *level_em = level->native_em_level;
+  struct LEVEL *lev = level_em->lev;
+  int i, j;
 
-  struct
+  level->num_android_clone_elements = 0;
+
+  for (i = 0; i < TILE_MAX; i++)
   {
-    int element_em;
+    int element_em = lev->android_array[i];
     int element_rnd;
-  }
-  em_object_mapping_list[] =
-  {
-    { Xblank,                  EL_EMPTY                        },
-    { Yacid_splash_eB,         EL_EMPTY                        },
-    { Yacid_splash_wB,         EL_EMPTY                        },
-
-#ifdef EM_ENGINE_BAD_ROLL
-    { Xstone_force_e,          EL_ROCK                         },
-    { Xstone_force_w,          EL_ROCK                         },
-    { Xnut_force_e,            EL_NUT                          },
-    { Xnut_force_w,            EL_NUT                          },
-    { Xspring_force_e,         EL_SPRING                       },
-    { Xspring_force_w,         EL_SPRING                       },
-    { Xemerald_force_e,                EL_EMERALD                      },
-    { Xemerald_force_w,                EL_EMERALD                      },
-    { Xdiamond_force_e,                EL_DIAMOND                      },
-    { Xdiamond_force_w,                EL_DIAMOND                      },
-    { Xbomb_force_e,           EL_BOMB                         },
-    { Xbomb_force_w,           EL_BOMB                         },
-#endif
+    boolean element_found = FALSE;
 
-    { Xstone,                  EL_ROCK                         },
-    { Xstone_pause,            EL_ROCK                         },
-    { Xstone_fall,             EL_ROCK                         },
-    { Ystone_s,                        EL_ROCK                         },
-    { Ystone_sB,               EL_ROCK                         },
-    { Ystone_e,                        EL_ROCK                         },
-    { Ystone_eB,               EL_ROCK                         },
-    { Ystone_w,                        EL_ROCK                         },
-    { Ystone_wB,               EL_ROCK                         },
-    { Xnut,                    EL_NUT                          },
-    { Xnut_pause,              EL_NUT                          },
-    { Xnut_fall,               EL_NUT                          },
-    { Ynut_s,                  EL_NUT                          },
-    { Ynut_sB,                 EL_NUT                          },
-    { Ynut_e,                  EL_NUT                          },
-    { Ynut_eB,                 EL_NUT                          },
-    { Ynut_w,                  EL_NUT                          },
-    { Ynut_wB,                 EL_NUT                          },
-    { Xbug_n,                  EL_BUG_UP                       },
-    { Xbug_e,                  EL_BUG_RIGHT                    },
-    { Xbug_s,                  EL_BUG_DOWN                     },
-    { Xbug_w,                  EL_BUG_LEFT                     },
-    { Xbug_gon,                        EL_BUG_UP                       },
-    { Xbug_goe,                        EL_BUG_RIGHT                    },
-    { Xbug_gos,                        EL_BUG_DOWN                     },
-    { Xbug_gow,                        EL_BUG_LEFT                     },
-    { Ybug_n,                  EL_BUG_UP                       },
-    { Ybug_nB,                 EL_BUG_UP                       },
-    { Ybug_e,                  EL_BUG_RIGHT                    },
-    { Ybug_eB,                 EL_BUG_RIGHT                    },
-    { Ybug_s,                  EL_BUG_DOWN                     },
-    { Ybug_sB,                 EL_BUG_DOWN                     },
-    { Ybug_w,                  EL_BUG_LEFT                     },
-    { Ybug_wB,                 EL_BUG_LEFT                     },
-    { Ybug_w_n,                        EL_BUG_UP                       },
-    { Ybug_n_e,                        EL_BUG_RIGHT                    },
-    { Ybug_e_s,                        EL_BUG_DOWN                     },
-    { Ybug_s_w,                        EL_BUG_LEFT                     },
-    { Ybug_e_n,                        EL_BUG_UP                       },
-    { Ybug_s_e,                        EL_BUG_RIGHT                    },
-    { Ybug_w_s,                        EL_BUG_DOWN                     },
-    { Ybug_n_w,                        EL_BUG_LEFT                     },
-    { Ybug_stone,              EL_ROCK                         },
-    { Ybug_spring,             EL_SPRING                       },
-    { Xtank_n,                 EL_SPACESHIP_UP                 },
-    { Xtank_e,                 EL_SPACESHIP_RIGHT              },
-    { Xtank_s,                 EL_SPACESHIP_DOWN               },
-    { Xtank_w,                 EL_SPACESHIP_LEFT               },
-    { Xtank_gon,               EL_SPACESHIP_UP                 },
-    { Xtank_goe,               EL_SPACESHIP_RIGHT              },
-    { Xtank_gos,               EL_SPACESHIP_DOWN               },
-    { Xtank_gow,               EL_SPACESHIP_LEFT               },
-    { Ytank_n,                 EL_SPACESHIP_UP                 },
-    { Ytank_nB,                        EL_SPACESHIP_UP                 },
-    { Ytank_e,                 EL_SPACESHIP_RIGHT              },
-    { Ytank_eB,                        EL_SPACESHIP_RIGHT              },
-    { Ytank_s,                 EL_SPACESHIP_DOWN               },
-    { Ytank_sB,                        EL_SPACESHIP_DOWN               },
-    { Ytank_w,                 EL_SPACESHIP_LEFT               },
-    { Ytank_wB,                        EL_SPACESHIP_LEFT               },
-    { Ytank_w_n,               EL_SPACESHIP_UP                 },
-    { Ytank_n_e,               EL_SPACESHIP_RIGHT              },
-    { Ytank_e_s,               EL_SPACESHIP_DOWN               },
-    { Ytank_s_w,               EL_SPACESHIP_LEFT               },
-    { Ytank_e_n,               EL_SPACESHIP_UP                 },
-    { Ytank_s_e,               EL_SPACESHIP_RIGHT              },
-    { Ytank_w_s,               EL_SPACESHIP_DOWN               },
-    { Ytank_n_w,               EL_SPACESHIP_LEFT               },
-    { Ytank_stone,             EL_ROCK                         },
-    { Ytank_spring,            EL_SPRING                       },
-    { Xandroid,                        EL_EMC_ANDROID                  },
-    { Xandroid_1_n,            EL_EMC_ANDROID_UP               },
-    { Xandroid_2_n,            EL_EMC_ANDROID_UP               },
-    { Xandroid_1_e,            EL_EMC_ANDROID_RIGHT            },
-    { Xandroid_2_e,            EL_EMC_ANDROID_RIGHT            },
-    { Xandroid_1_w,            EL_EMC_ANDROID_LEFT             },
-    { Xandroid_2_w,            EL_EMC_ANDROID_LEFT             },
-    { Xandroid_1_s,            EL_EMC_ANDROID_DOWN             },
-    { Xandroid_2_s,            EL_EMC_ANDROID_DOWN             },
-    { Yandroid_n,              EL_EMC_ANDROID_UP               },
-    { Yandroid_nB,             EL_EMC_ANDROID_UP               },
-    { Yandroid_ne,             EL_EMC_ANDROID_RIGHT_UP         },
-    { Yandroid_neB,            EL_EMC_ANDROID_RIGHT_UP         },
-    { Yandroid_e,              EL_EMC_ANDROID_RIGHT            },
-    { Yandroid_eB,             EL_EMC_ANDROID_RIGHT            },
-    { Yandroid_se,             EL_EMC_ANDROID_RIGHT_DOWN       },
-    { Yandroid_seB,            EL_EMC_ANDROID_RIGHT_DOWN       },
-    { Yandroid_s,              EL_EMC_ANDROID_DOWN             },
-    { Yandroid_sB,             EL_EMC_ANDROID_DOWN             },
-    { Yandroid_sw,             EL_EMC_ANDROID_LEFT_DOWN        },
-    { Yandroid_swB,            EL_EMC_ANDROID_LEFT_DOWN        },
-    { Yandroid_w,              EL_EMC_ANDROID_LEFT             },
-    { Yandroid_wB,             EL_EMC_ANDROID_LEFT             },
-    { Yandroid_nw,             EL_EMC_ANDROID_LEFT_UP          },
-    { Yandroid_nwB,            EL_EMC_ANDROID_LEFT_UP          },
-    { Xspring,                 EL_SPRING                       },
-    { Xspring_pause,           EL_SPRING                       },
-    { Xspring_e,               EL_SPRING                       },
-    { Xspring_w,               EL_SPRING                       },
-    { Xspring_fall,            EL_SPRING                       },
-    { Yspring_s,               EL_SPRING                       },
-    { Yspring_sB,              EL_SPRING                       },
-    { Yspring_e,               EL_SPRING                       },
-    { Yspring_eB,              EL_SPRING                       },
-    { Yspring_w,               EL_SPRING                       },
-    { Yspring_wB,              EL_SPRING                       },
-    { Yspring_kill_e,          EL_SPRING                       },
-    { Yspring_kill_eB,         EL_SPRING                       },
-    { Yspring_kill_w,          EL_SPRING                       },
-    { Yspring_kill_wB,         EL_SPRING                       },
-    { Xeater_n,                        EL_YAMYAM                       },
-    { Xeater_e,                        EL_YAMYAM                       },
-    { Xeater_w,                        EL_YAMYAM                       },
-    { Xeater_s,                        EL_YAMYAM                       },
-    { Yeater_n,                        EL_YAMYAM                       },
-    { Yeater_nB,               EL_YAMYAM                       },
-    { Yeater_e,                        EL_YAMYAM                       },
-    { Yeater_eB,               EL_YAMYAM                       },
-    { Yeater_s,                        EL_YAMYAM                       },
-    { Yeater_sB,               EL_YAMYAM                       },
-    { Yeater_w,                        EL_YAMYAM                       },
-    { Yeater_wB,               EL_YAMYAM                       },
-    { Yeater_stone,            EL_ROCK                         },
-    { Yeater_spring,           EL_SPRING                       },
-    { Xalien,                  EL_ROBOT                        },
-    { Xalien_pause,            EL_ROBOT                        },
-    { Yalien_n,                        EL_ROBOT                        },
-    { Yalien_nB,               EL_ROBOT                        },
-    { Yalien_e,                        EL_ROBOT                        },
-    { Yalien_eB,               EL_ROBOT                        },
-    { Yalien_s,                        EL_ROBOT                        },
-    { Yalien_sB,               EL_ROBOT                        },
-    { Yalien_w,                        EL_ROBOT                        },
-    { Yalien_wB,               EL_ROBOT                        },
-    { Yalien_stone,            EL_ROCK                         },
-    { Yalien_spring,           EL_SPRING                       },
-    { Xemerald,                        EL_EMERALD                      },
-    { Xemerald_pause,          EL_EMERALD                      },
-    { Xemerald_fall,           EL_EMERALD                      },
-    { Xemerald_shine,          EL_EMERALD                      },
-    { Yemerald_s,              EL_EMERALD                      },
-    { Yemerald_sB,             EL_EMERALD                      },
-    { Yemerald_e,              EL_EMERALD                      },
-    { Yemerald_eB,             EL_EMERALD                      },
-    { Yemerald_w,              EL_EMERALD                      },
-    { Yemerald_wB,             EL_EMERALD                      },
-    { Yemerald_eat,            EL_EMERALD                      },
-    { Yemerald_stone,          EL_ROCK                         },
-    { Xdiamond,                        EL_DIAMOND                      },
-    { Xdiamond_pause,          EL_DIAMOND                      },
-    { Xdiamond_fall,           EL_DIAMOND                      },
-    { Xdiamond_shine,          EL_DIAMOND                      },
-    { Ydiamond_s,              EL_DIAMOND                      },
-    { Ydiamond_sB,             EL_DIAMOND                      },
-    { Ydiamond_e,              EL_DIAMOND                      },
-    { Ydiamond_eB,             EL_DIAMOND                      },
-    { Ydiamond_w,              EL_DIAMOND                      },
-    { Ydiamond_wB,             EL_DIAMOND                      },
-    { Ydiamond_eat,            EL_DIAMOND                      },
-    { Ydiamond_stone,          EL_ROCK                         },
-    { Xdrip_fall,              EL_AMOEBA_DROP                  },
-    { Xdrip_stretch,           EL_AMOEBA_DROP                  },
-    { Xdrip_stretchB,          EL_AMOEBA_DROP                  },
-    { Xdrip_eat,               EL_AMOEBA_DROP                  },
-    { Ydrip_s1,                        EL_AMOEBA_DROP                  },
-    { Ydrip_s1B,               EL_AMOEBA_DROP                  },
-    { Ydrip_s2,                        EL_AMOEBA_DROP                  },
-    { Ydrip_s2B,               EL_AMOEBA_DROP                  },
-    { Xbomb,                   EL_BOMB                         },
-    { Xbomb_pause,             EL_BOMB                         },
-    { Xbomb_fall,              EL_BOMB                         },
-    { Ybomb_s,                 EL_BOMB                         },
-    { Ybomb_sB,                        EL_BOMB                         },
-    { Ybomb_e,                 EL_BOMB                         },
-    { Ybomb_eB,                        EL_BOMB                         },
-    { Ybomb_w,                 EL_BOMB                         },
-    { Ybomb_wB,                        EL_BOMB                         },
-    { Ybomb_eat,               EL_BOMB                         },
-    { Xballoon,                        EL_BALLOON                      },
-    { Yballoon_n,              EL_BALLOON                      },
-    { Yballoon_nB,             EL_BALLOON                      },
-    { Yballoon_e,              EL_BALLOON                      },
-    { Yballoon_eB,             EL_BALLOON                      },
-    { Yballoon_s,              EL_BALLOON                      },
-    { Yballoon_sB,             EL_BALLOON                      },
-    { Yballoon_w,              EL_BALLOON                      },
-    { Yballoon_wB,             EL_BALLOON                      },
-    { Xgrass,                  EL_SAND                         },
-    { Ygrass_nB,               EL_SAND                         },
-    { Ygrass_eB,               EL_SAND                         },
-    { Ygrass_sB,               EL_SAND                         },
-    { Ygrass_wB,               EL_SAND                         },
-    { Xdirt,                   EL_SAND                         },
-    { Ydirt_nB,                        EL_SAND                         },
-    { Ydirt_eB,                        EL_SAND                         },
-    { Ydirt_sB,                        EL_SAND                         },
-    { Ydirt_wB,                        EL_SAND                         },
-    { Xacid_ne,                        EL_ACID_POOL_TOPRIGHT           },
-    { Xacid_se,                        EL_ACID_POOL_BOTTOMRIGHT        },
-    { Xacid_s,                 EL_ACID_POOL_BOTTOM             },
-    { Xacid_sw,                        EL_ACID_POOL_BOTTOMLEFT         },
-    { Xacid_nw,                        EL_ACID_POOL_TOPLEFT            },
-    { Xacid_1,                 EL_ACID                         },
-    { Xacid_2,                 EL_ACID                         },
-    { Xacid_3,                 EL_ACID                         },
-    { Xacid_4,                 EL_ACID                         },
-    { Xacid_5,                 EL_ACID                         },
-    { Xacid_6,                 EL_ACID                         },
-    { Xacid_7,                 EL_ACID                         },
-    { Xacid_8,                 EL_ACID                         },
-    { Xball_1,                 EL_EMC_MAGIC_BALL               },
-    { Xball_1B,                        EL_EMC_MAGIC_BALL               },
-    { Xball_2,                 EL_EMC_MAGIC_BALL               },
-    { Xball_2B,                        EL_EMC_MAGIC_BALL               },
-    { Yball_eat,               EL_EMC_MAGIC_BALL               },
-    { Xgrow_ns,                        EL_EMC_GROW                     },
-    { Ygrow_ns_eat,            EL_EMC_GROW                     },
-    { Xgrow_ew,                        EL_EMC_GROW                     },
-    { Ygrow_ew_eat,            EL_EMC_GROW                     },
-    { Xwonderwall,             EL_MAGIC_WALL                   },
-    { XwonderwallB,            EL_MAGIC_WALL                   },
-    { Xamoeba_1,               EL_AMOEBA_WET                   },
-    { Xamoeba_2,               EL_AMOEBA_WET                   },
-    { Xamoeba_3,               EL_AMOEBA_WET                   },
-    { Xamoeba_4,               EL_AMOEBA_WET                   },
-    { Xamoeba_5,               EL_AMOEBA_WET                   },
-    { Xamoeba_6,               EL_AMOEBA_WET                   },
-    { Xamoeba_7,               EL_AMOEBA_WET                   },
-    { Xamoeba_8,               EL_AMOEBA_WET                   },
-    { Xdoor_1,                 EL_EM_GATE_1                    },
-    { Xdoor_2,                 EL_EM_GATE_2                    },
-    { Xdoor_3,                 EL_EM_GATE_3                    },
-    { Xdoor_4,                 EL_EM_GATE_4                    },
-    { Xdoor_5,                 EL_EMC_GATE_5                   },
-    { Xdoor_6,                 EL_EMC_GATE_6                   },
-    { Xdoor_7,                 EL_EMC_GATE_7                   },
-    { Xdoor_8,                 EL_EMC_GATE_8                   },
-    { Xkey_1,                  EL_EM_KEY_1                     },
-    { Xkey_2,                  EL_EM_KEY_2                     },
-    { Xkey_3,                  EL_EM_KEY_3                     },
-    { Xkey_4,                  EL_EM_KEY_4                     },
-    { Xkey_5,                  EL_EMC_KEY_5                    },
-    { Xkey_6,                  EL_EMC_KEY_6                    },
-    { Xkey_7,                  EL_EMC_KEY_7                    },
-    { Xkey_8,                  EL_EMC_KEY_8                    },
-    { Xwind_n,                 EL_BALLOON_SWITCH_UP            },
-    { Xwind_e,                 EL_BALLOON_SWITCH_RIGHT         },
-    { Xwind_s,                 EL_BALLOON_SWITCH_DOWN          },
-    { Xwind_w,                 EL_BALLOON_SWITCH_LEFT          },
-    { Xwind_nesw,              EL_BALLOON_SWITCH_ANY           },
-    { Xwind_stop,              EL_BALLOON_SWITCH_NONE          },
-    { Xexit,                   EL_EXIT_CLOSED                  },
-    { Xexit_1,                 EL_EXIT_OPEN                    },
-    { Xexit_2,                 EL_EXIT_OPEN                    },
-    { Xexit_3,                 EL_EXIT_OPEN                    },
-    { Xdynamite,               EL_DYNAMITE                     },
-    { Ydynamite_eat,           EL_DYNAMITE                     },
-    { Xdynamite_1,             EL_DYNAMITE_ACTIVE              },
-    { Xdynamite_2,             EL_DYNAMITE_ACTIVE              },
-    { Xdynamite_3,             EL_DYNAMITE_ACTIVE              },
-    { Xdynamite_4,             EL_DYNAMITE_ACTIVE              },
-    { Xbumper,                 EL_EMC_BUMPER                   },
-    { XbumperB,                        EL_EMC_BUMPER                   },
-    { Xwheel,                  EL_ROBOT_WHEEL                  },
-    { XwheelB,                 EL_ROBOT_WHEEL                  },
-    { Xswitch,                 EL_UNKNOWN                      },
-    { XswitchB,                        EL_UNKNOWN                      },
-    { Xsand,                   EL_QUICKSAND_EMPTY              },
-    { Xsand_stone,             EL_QUICKSAND_FULL               },
-    { Xsand_stonein_1,         EL_QUICKSAND_FULL               },
-    { Xsand_stonein_2,         EL_QUICKSAND_FULL               },
-    { Xsand_stonein_3,         EL_QUICKSAND_FULL               },
-    { Xsand_stonein_4,         EL_QUICKSAND_FULL               },
-    { Xsand_stonesand_1,       EL_QUICKSAND_FULL               },
-    { Xsand_stonesand_2,       EL_QUICKSAND_FULL               },
-    { Xsand_stonesand_3,       EL_QUICKSAND_FULL               },
-    { Xsand_stonesand_4,       EL_QUICKSAND_FULL               },
-    { Xsand_stoneout_1,                EL_QUICKSAND_FULL               },
-    { Xsand_stoneout_2,                EL_QUICKSAND_FULL               },
-    { Xsand_sandstone_1,       EL_QUICKSAND_FULL               },
-    { Xsand_sandstone_2,       EL_QUICKSAND_FULL               },
-    { Xsand_sandstone_3,       EL_QUICKSAND_FULL               },
-    { Xsand_sandstone_4,       EL_QUICKSAND_FULL               },
-    { Xplant,                  EL_EMC_PLANT                    },
-    { Yplant,                  EL_EMC_PLANT                    },
-    { Xlenses,                 EL_EMC_LENSES                   },
-    { Xmagnify,                        EL_EMC_MAGNIFIER                },
-    { Xdripper,                        EL_UNKNOWN                      },
-    { XdripperB,               EL_UNKNOWN                      },
-    { Xfake_blank,             EL_INVISIBLE_WALL               },
-    { Xfake_blankB,            EL_INVISIBLE_WALL               },
-    { Xfake_grass,             EL_INVISIBLE_SAND               },
-    { Xfake_grassB,            EL_INVISIBLE_SAND               },
-    { Xfake_door_1,            EL_EM_GATE_1_GRAY               },
-    { Xfake_door_2,            EL_EM_GATE_2_GRAY               },
-    { Xfake_door_3,            EL_EM_GATE_3_GRAY               },
-    { Xfake_door_4,            EL_EM_GATE_4_GRAY               },
-    { Xfake_door_5,            EL_EMC_GATE_5_GRAY              },
-    { Xfake_door_6,            EL_EMC_GATE_6_GRAY              },
-    { Xfake_door_7,            EL_EMC_GATE_7_GRAY              },
-    { Xfake_door_8,            EL_EMC_GATE_8_GRAY              },
-    { Xsteel_1,                        EL_STEELWALL                    },
-    { Xsteel_2,                        EL_UNKNOWN                      },
-    { Xsteel_3,                        EL_EMC_STEELWALL_1              },
-    { Xsteel_4,                        EL_UNKNOWN                      },
-    { Xwall_1,                 EL_WALL                         },
-    { Xwall_2,                 EL_UNKNOWN                      },
-    { Xwall_3,                 EL_UNKNOWN                      },
-    { Xwall_4,                 EL_UNKNOWN                      },
-    { Xround_wall_1,           EL_WALL_SLIPPERY                },
-    { Xround_wall_2,           EL_UNKNOWN                      },
-    { Xround_wall_3,           EL_UNKNOWN                      },
-    { Xround_wall_4,           EL_UNKNOWN                      },
-    { Xdecor_1,                        EL_UNKNOWN                      },
-    { Xdecor_2,                        EL_EMC_WALL_6                   },
-    { Xdecor_3,                        EL_EMC_WALL_4                   },
-    { Xdecor_4,                        EL_EMC_WALL_5                   },
-    { Xdecor_5,                        EL_EMC_WALL_7                   },
-    { Xdecor_6,                        EL_EMC_WALL_8                   },
-    { Xdecor_7,                        EL_UNKNOWN                      },
-    { Xdecor_8,                        EL_EMC_WALL_1                   },
-    { Xdecor_9,                        EL_EMC_WALL_2                   },
-    { Xdecor_10,               EL_EMC_WALL_3                   },
-    { Xdecor_11,               EL_UNKNOWN                      },
-    { Xdecor_12,               EL_UNKNOWN                      },
-    { Xalpha_0,                        EL_CHAR('0')                    },
-    { Xalpha_1,                        EL_CHAR('1')                    },
-    { Xalpha_2,                        EL_CHAR('2')                    },
-    { Xalpha_3,                        EL_CHAR('3')                    },
-    { Xalpha_4,                        EL_CHAR('4')                    },
-    { Xalpha_5,                        EL_CHAR('5')                    },
-    { Xalpha_6,                        EL_CHAR('6')                    },
-    { Xalpha_7,                        EL_CHAR('7')                    },
-    { Xalpha_8,                        EL_CHAR('8')                    },
-    { Xalpha_9,                        EL_CHAR('9')                    },
-    { Xalpha_excla,            EL_CHAR('!')                    },
-    { Xalpha_quote,            EL_CHAR('"')                    },
-    { Xalpha_comma,            EL_CHAR(',')                    },
-    { Xalpha_minus,            EL_CHAR('-')                    },
-    { Xalpha_perio,            EL_CHAR('.')                    },
-    { Xalpha_colon,            EL_CHAR(':')                    },
-    { Xalpha_quest,            EL_CHAR('?')                    },
-    { Xalpha_a,                        EL_CHAR('A')                    },
-    { Xalpha_b,                        EL_CHAR('B')                    },
-    { Xalpha_c,                        EL_CHAR('C')                    },
-    { Xalpha_d,                        EL_CHAR('D')                    },
-    { Xalpha_e,                        EL_CHAR('E')                    },
-    { Xalpha_f,                        EL_CHAR('F')                    },
-    { Xalpha_g,                        EL_CHAR('G')                    },
-    { Xalpha_h,                        EL_CHAR('H')                    },
-    { Xalpha_i,                        EL_CHAR('I')                    },
-    { Xalpha_j,                        EL_CHAR('J')                    },
-    { Xalpha_k,                        EL_CHAR('K')                    },
-    { Xalpha_l,                        EL_CHAR('L')                    },
-    { Xalpha_m,                        EL_CHAR('M')                    },
-    { Xalpha_n,                        EL_CHAR('N')                    },
-    { Xalpha_o,                        EL_CHAR('O')                    },
-    { Xalpha_p,                        EL_CHAR('P')                    },
-    { Xalpha_q,                        EL_CHAR('Q')                    },
-    { Xalpha_r,                        EL_CHAR('R')                    },
-    { Xalpha_s,                        EL_CHAR('S')                    },
-    { Xalpha_t,                        EL_CHAR('T')                    },
-    { Xalpha_u,                        EL_CHAR('U')                    },
-    { Xalpha_v,                        EL_CHAR('V')                    },
-    { Xalpha_w,                        EL_CHAR('W')                    },
-    { Xalpha_x,                        EL_CHAR('X')                    },
-    { Xalpha_y,                        EL_CHAR('Y')                    },
-    { Xalpha_z,                        EL_CHAR('Z')                    },
-    { Xalpha_arrow_e,          EL_CHAR('>')                    },
-    { Xalpha_arrow_w,          EL_CHAR('<')                    },
-    { Xalpha_copyr,            EL_CHAR('©')                    },
-
-    { Zplayer,                 EL_PLAYER_1                     },
-
-    { ZBORDER,                 EL_EMC_LEVEL_BORDER             },
-
-    { -1,                      -1                              }
-  };
+    if (element_em == Xblank)
+      continue;
 
-  if (!mapping_initialized)
-  {
-    int i;
+    element_rnd = map_element_EM_to_RND(element_em);
 
-    /* return "EL_UNKNOWN" for all undefined elements in mapping array */
-    for (i = 0; i < TILE_MAX; i++)
-      mapping_EM_to_RND[i] = EL_UNKNOWN;
+    for (j = 0; j < level->num_android_clone_elements; j++)
+      if (level->android_clone_element[j] == element_rnd)
+       element_found = TRUE;
 
-    for (i = 0; em_object_mapping_list[i].element_em != -1; i++)
-      mapping_EM_to_RND[em_object_mapping_list[i].element_em] =
-       em_object_mapping_list[i].element_rnd;
+    if (!element_found)
+    {
+      level->android_clone_element[level->num_android_clone_elements++] =
+       element_rnd;
 
-    mapping_initialized = TRUE;
+      if (level->num_android_clone_elements == MAX_ANDROID_ELEMENTS)
+       break;
+    }
   }
 
-  if (element_em >= 0 && element_em < TILE_MAX)
-    return mapping_EM_to_RND[element_em];
-
-  Error(ERR_WARN, "invalid EM level element %d", element_em);
+  if (level->num_android_clone_elements == 0)
+  {
+    level->num_android_clone_elements = 1;
+    level->android_clone_element[0] = EL_EMPTY;
+  }
+}
 
-  return EL_UNKNOWN;
+int map_direction_RND_to_EM(int direction)
+{
+  return (direction == MV_UP    ? 0 :
+         direction == MV_RIGHT ? 1 :
+         direction == MV_DOWN  ? 2 :
+         direction == MV_LEFT  ? 3 :
+         -1);
 }
 
-#endif
+int map_direction_EM_to_RND(int direction)
+{
+  return (direction == 0 ? MV_UP    :
+         direction == 1 ? MV_RIGHT :
+         direction == 2 ? MV_DOWN  :
+         direction == 3 ? MV_LEFT  :
+         MV_NONE);
+}
 
 int get_next_element(int element)
 {
@@ -5389,7 +5041,7 @@ int el_act_dir2img(int element, int action, int direction)
   if (direction == MV_NONE)
     return element_info[element].graphic[action];
 
-  direction = MV_DIR_BIT(direction);
+  direction = MV_DIR_TO_BIT(direction);
 
   return element_info[element].direction_graphic[action][direction];
 }
@@ -5397,7 +5049,7 @@ int el_act_dir2img(int element, int action, int direction)
 int el_act_dir2img(int element, int action, int direction)
 {
   element = GFX_ELEMENT(element);
-  direction = MV_DIR_BIT(direction);   /* default: MV_NONE => MV_DOWN */
+  direction = MV_DIR_TO_BIT(direction);        /* default: MV_NONE => MV_DOWN */
 
   /* direction_graphic[][] == graphic[] for undefined direction graphics */
   return element_info[element].direction_graphic[action][direction];
@@ -5412,7 +5064,7 @@ static int el_act_dir2crm(int element, int action, int direction)
   if (direction == MV_NONE)
     return element_info[element].crumbled[action];
 
-  direction = MV_DIR_BIT(direction);
+  direction = MV_DIR_TO_BIT(direction);
 
   return element_info[element].direction_crumbled[action][direction];
 }
@@ -5420,7 +5072,7 @@ static int el_act_dir2crm(int element, int action, int direction)
 static int el_act_dir2crm(int element, int action, int direction)
 {
   element = GFX_ELEMENT(element);
-  direction = MV_DIR_BIT(direction);   /* default: MV_NONE => MV_DOWN */
+  direction = MV_DIR_TO_BIT(direction);        /* default: MV_NONE => MV_DOWN */
 
   /* direction_graphic[][] == graphic[] for undefined direction graphics */
   return element_info[element].direction_crumbled[action][direction];
@@ -5479,6 +5131,53 @@ int font2baseimg(int font_nr)
   return font_info[font_nr].special_graphic[GFX_SPECIAL_ARG_DEFAULT];
 }
 
+#if 0
+void setCenteredPlayerNr_EM(int centered_player_nr)
+{
+  game.centered_player_nr = game.centered_player_nr_next = centered_player_nr;
+}
+
+int getCenteredPlayerNr_EM()
+{
+#if 0
+  if (game.centered_player_nr_next >= 0 &&
+      !native_em_level.ply[game.centered_player_nr_next]->alive)
+    game.centered_player_nr_next = game.centered_player_nr;
+#endif
+
+  if (game.centered_player_nr != game.centered_player_nr_next)
+    game.centered_player_nr = game.centered_player_nr_next;
+
+  return game.centered_player_nr;
+}
+
+void setSetCenteredPlayer_EM(boolean set_centered_player)
+{
+  game.set_centered_player = set_centered_player;
+}
+
+boolean getSetCenteredPlayer_EM()
+{
+  return game.set_centered_player;
+}
+#endif
+
+int getNumActivePlayers_EM()
+{
+  int num_players = 0;
+  int i;
+
+  if (!tape.playing)
+    return -1;
+
+  for (i = 0; i < MAX_PLAYERS; i++)
+    if (tape.player_participates[i])
+      num_players++;
+
+  return num_players;
+}
+
+#if 1
 int getGameFrameDelay_EM(int native_em_game_frame_delay)
 {
   int game_frame_delay_value;
@@ -5493,6 +5192,7 @@ int getGameFrameDelay_EM(int native_em_game_frame_delay)
 
   return game_frame_delay_value;
 }
+#endif
 
 unsigned int InitRND(long seed)
 {
@@ -5507,7 +5207,7 @@ unsigned int InitRND(long seed)
 void InitGraphicInfo_EM(void)
 {
   struct Mapping_EM_to_RND_object object_mapping[TILE_MAX];
-  struct Mapping_EM_to_RND_player player_mapping[2][SPR_MAX];
+  struct Mapping_EM_to_RND_player player_mapping[MAX_PLAYERS][SPR_MAX];
   int i, j, p;
 
 #if DEBUG_EM_GFX
@@ -5529,7 +5229,7 @@ void InitGraphicInfo_EM(void)
   }
 
   /* always start with reliable default values */
-  for (p = 0; p < 2; p++)
+  for (p = 0; p < MAX_PLAYERS; p++)
   {
     for (i = 0; i < SPR_MAX; i++)
     {
@@ -5550,7 +5250,8 @@ void InitGraphicInfo_EM(void)
       object_mapping[e].action = em_object_mapping_list[i].action;
 
     if (em_object_mapping_list[i].direction != -1)
-      object_mapping[e].direction = (1 << em_object_mapping_list[i].direction);
+      object_mapping[e].direction =
+       MV_DIR_FROM_BIT(em_object_mapping_list[i].direction);
   }
 
   for (i = 0; em_player_mapping_list[i].action_em != -1; i++)
@@ -5565,7 +5266,7 @@ void InitGraphicInfo_EM(void)
 
     if (em_player_mapping_list[i].direction != -1)
       player_mapping[p][a].direction =
-       (1 << em_player_mapping_list[i].direction);
+       MV_DIR_FROM_BIT(em_player_mapping_list[i].direction);
   }
 
   for (i = 0; i < TILE_MAX; i++)
@@ -5712,9 +5413,9 @@ void InitGraphicInfo_EM(void)
                        i == Xexit_2 ? j + 8 :
                        i == Xexit_3 ? j + 16 :
                        i == Xdynamite_1 ? 0 :
-                       i == Xdynamite_2 ? 20 :
-                       i == Xdynamite_3 ? 40 :
-                       i == Xdynamite_4 ? 60 :
+                       i == Xdynamite_2 ? 8 :
+                       i == Xdynamite_3 ? 16 :
+                       i == Xdynamite_4 ? 24 :
                        i == Xsand_stonein_1 ? j + 1 :
                        i == Xsand_stonein_2 ? j + 9 :
                        i == Xsand_stonein_3 ? j + 17 :
@@ -5824,8 +5525,9 @@ void InitGraphicInfo_EM(void)
       }
 
       if (!g->double_movement && (effective_action == ACTION_FALLING ||
-                                 effective_action == ACTION_MOVING ||
-                                 effective_action == ACTION_PUSHING))
+                                 effective_action == ACTION_MOVING  ||
+                                 effective_action == ACTION_PUSHING ||
+                                 effective_action == ACTION_EATING))
       {
        int move_dir =
          (effective_action == ACTION_FALLING ? MV_DOWN : direction);
@@ -5872,6 +5574,15 @@ void InitGraphicInfo_EM(void)
        g_em->height = TILEY - cy * step;
       }
 
+#if 1
+      /* create unique graphic identifier to decide if tile must be redrawn */
+      /* bit 31 - 16 (16 bit): EM style graphic
+        bit 15 - 12 ( 4 bit): EM style frame
+        bit 11 -  6 ( 6 bit): graphic width
+        bit  5 -  0 ( 6 bit): graphic height */
+      g_em->unique_identifier =
+       (graphic << 16) | (frame << 12) | (g_em->width << 6) | g_em->height;
+#else
       /* create unique graphic identifier to decide if tile must be redrawn */
       /* bit 31 - 16 (16 bit): EM style element
         bit 15 - 12 ( 4 bit): EM style frame
@@ -5879,8 +5590,22 @@ void InitGraphicInfo_EM(void)
         bit  5 -  0 ( 6 bit): graphic height */
       g_em->unique_identifier =
        (i << 16) | (j << 12) | (g_em->width << 6) | g_em->height;
+#endif
+
+#if 0
+      if (effective_element == EL_ROCK)
+       printf("::: EL_ROCK(%d, %d): %d, %d => %d\n",
+              effective_action, j, graphic, frame, g_em->unique_identifier);
+#endif
 
 #if DEBUG_EM_GFX
+
+#if 1
+      /* skip check for EMC elements not contained in original EMC artwork */
+      if (element == EL_EMC_FAKE_ACID)
+       continue;
+#endif
+
       if (g_em->bitmap != debug_bitmap ||
          g_em->src_x != debug_src_x ||
          g_em->src_y != debug_src_y ||
@@ -5949,14 +5674,30 @@ void InitGraphicInfo_EM(void)
     {
       int element = object_mapping[i].element_rnd;
       int action = object_mapping[i].action;
+      int direction = object_mapping[i].direction;
+      boolean is_backside = object_mapping[i].is_backside;
+#if 1
+      int graphic_action  = el_act_dir2img(element, action, direction);
+      int graphic_default = el_act_dir2img(element, ACTION_DEFAULT, direction);
+#else
+      int graphic_action  = element_info[element].graphic[action];
+      int graphic_default = element_info[element].graphic[ACTION_DEFAULT];
+#endif
 
-      if (action == ACTION_SMASHED_BY_ROCK &&
-         element_info[element].graphic[action] ==
-         element_info[element].graphic[ACTION_DEFAULT])
+      if ((action == ACTION_SMASHED_BY_ROCK ||
+          action == ACTION_SMASHED_BY_SPRING ||
+          action == ACTION_EATING) &&
+         graphic_action == graphic_default)
       {
+       int e = (action == ACTION_SMASHED_BY_ROCK   ? Ystone_s  :
+                action == ACTION_SMASHED_BY_SPRING ? Yspring_s :
+                direction == MV_LEFT  ? (is_backside? Yspring_wB: Yspring_w) :
+                direction == MV_RIGHT ? (is_backside? Yspring_eB: Yspring_e) :
+                Xspring);
+
        /* no separate animation for "smashed by rock" -- use rock instead */
        struct GraphicInfo_EM *g_em = &graphic_info_em_object[i][7 - j];
-       struct GraphicInfo_EM *g_xx = &graphic_info_em_object[Ystone_s][7 - j];
+       struct GraphicInfo_EM *g_xx = &graphic_info_em_object[e][7 - j];
 
        g_em->bitmap            = g_xx->bitmap;
        g_em->src_x             = g_xx->src_x;
@@ -5967,13 +5708,17 @@ void InitGraphicInfo_EM(void)
        g_em->dst_offset_y      = g_xx->dst_offset_y;
        g_em->width             = g_xx->width;
        g_em->height            = g_xx->height;
+#if 1
+       g_em->unique_identifier = g_xx->unique_identifier;
+#endif
 
-       g_em->preserve_background = TRUE;
+       if (!is_backside)
+         g_em->preserve_background = TRUE;
       }
     }
   }
 
-  for (p = 0; p < 2; p++)
+  for (p = 0; p < MAX_PLAYERS; p++)
   {
     for (i = 0; i < SPR_MAX; i++)
     {
@@ -6020,6 +5765,14 @@ void InitGraphicInfo_EM(void)
        g_em->height = TILEY;
 
 #if DEBUG_EM_GFX
+
+#if 1
+       /* skip check for EMC elements not contained in original EMC artwork */
+       if (element == EL_PLAYER_3 ||
+           element == EL_PLAYER_4)
+         continue;
+#endif
+
        if (g_em->bitmap != debug_bitmap ||
            g_em->src_x != debug_src_x ||
            g_em->src_y != debug_src_y)