X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Ftools.c;h=d50b99dd3d23b79d09f4b142a573fc6ec869e852;hb=86b0ea5594dc5a9db7ac5d71fa2b7487a4fc1f9d;hp=f0db269659986d6d573ca212063ba71fa21b1b44;hpb=e4bf86b0ac3fd50612eee1439beba2fbaaa7cd09;p=rocksndiamonds.git

diff --git a/src/tools.c b/src/tools.c
index f0db2696..d50b99dd 100644
--- a/src/tools.c
+++ b/src/tools.c
@@ -34,6 +34,7 @@
 /* forward declaration for internal use */
 static void UnmapToolButtons();
 static void HandleToolButtons(struct GadgetInfo *);
+static int el_act_dir2crm(int, int, int);
 
 static struct GadgetInfo *tool_gadget[NUM_TOOL_BUTTONS];
 static int request_gadget_id = -1;
@@ -70,7 +71,7 @@ void SetDrawtoField(int mode)
 
 void RedrawPlayfield(boolean force_redraw, int x, int y, int width, int height)
 {
-  if (game_status == PLAYING)
+  if (game_status == GAME_MODE_PLAYING)
   {
     if (force_redraw)
     {
@@ -118,7 +119,7 @@ void BackToFront()
   int x,y;
   DrawBuffer *buffer = (drawto_field == window ? backbuffer : drawto_field);
 
-  if (setup.direct_draw && game_status == PLAYING)
+  if (setup.direct_draw && game_status == GAME_MODE_PLAYING)
     redraw_mask &= ~REDRAW_MAIN;
 
   if (redraw_mask & REDRAW_TILES && redraw_tiles > REDRAWTILES_THRESHOLD)
@@ -130,7 +131,7 @@ void BackToFront()
   if (redraw_mask == REDRAW_NONE)
     return;
 
-  if (global.fps_slowdown && game_status == PLAYING)
+  if (global.fps_slowdown && game_status == GAME_MODE_PLAYING)
   {
     static boolean last_frame_skipped = FALSE;
     boolean skip_even_when_not_scrolling = TRUE;
@@ -175,7 +176,8 @@ void BackToFront()
 
   if (redraw_mask & REDRAW_FIELD)
   {
-    if (game_status != PLAYING || redraw_mask & REDRAW_FROM_BACKBUFFER)
+    if (game_status != GAME_MODE_PLAYING ||
+	redraw_mask & REDRAW_FROM_BACKBUFFER)
     {
       BlitBitmap(backbuffer, window,
 		 REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE, REAL_SX, REAL_SY);
@@ -388,7 +390,7 @@ void ClearWindow()
 {
   DrawBackground(REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
 
-  if (setup.soft_scrolling && game_status == PLAYING)
+  if (setup.soft_scrolling && game_status == GAME_MODE_PLAYING)
   {
     ClearRectangle(fieldbuffer, 0, 0, FXSIZE, FYSIZE);
     SetDrawtoField(DRAW_BUFFERED);
@@ -396,7 +398,7 @@ void ClearWindow()
   else
     SetDrawtoField(DRAW_BACKBUFFER);
 
-  if (setup.direct_draw && game_status == PLAYING)
+  if (setup.direct_draw && game_status == GAME_MODE_PLAYING)
   {
     ClearRectangle(window, REAL_SX, REAL_SY, FULL_SXSIZE, FULL_SYSIZE);
     SetDrawtoField(DRAW_DIRECT);
@@ -482,7 +484,13 @@ void DrawLevelGraphicAnimation(int x, int y, int graphic)
 
 void DrawLevelElementAnimation(int x, int y, int element)
 {
+#if 1
+  int graphic = el_act_dir2img(element, GfxAction[x][y], MovDir[x][y]);
+
+  DrawGraphicAnimation(SCREENX(x), SCREENY(y), graphic);
+#else
   DrawGraphicAnimation(SCREENX(x), SCREENY(y), el2img(element));
+#endif
 }
 
 inline void DrawLevelGraphicAnimationIfNeeded(int x, int y, int graphic)
@@ -496,6 +504,9 @@ inline void DrawLevelGraphicAnimationIfNeeded(int x, int y, int graphic)
     return;
 
   DrawGraphicAnimation(sx, sy, graphic);
+
+  if (CAN_BE_CRUMBLED(Feld[x][y]))
+    DrawLevelFieldCrumbledSand(x, y);
 }
 
 void DrawLevelElementAnimationIfNeeded(int x, int y, int element)
@@ -512,6 +523,9 @@ void DrawLevelElementAnimationIfNeeded(int x, int y, int element)
     return;
 
   DrawGraphicAnimation(sx, sy, graphic);
+
+  if (CAN_BE_CRUMBLED(element))
+    DrawLevelFieldCrumbledSand(x, y);
 }
 
 void DrawAllPlayers()
@@ -533,6 +547,7 @@ void DrawPlayerField(int x, int y)
 
 void DrawPlayer(struct PlayerInfo *player)
 {
+#if 0
   int jx = player->jx, jy = player->jy;
   int last_jx = player->last_jx, last_jy = player->last_jy;
   int next_jx = jx + (jx - last_jx), next_jy = jy + (jy - last_jy);
@@ -544,6 +559,23 @@ void DrawPlayer(struct PlayerInfo *player)
   boolean player_is_moving = (last_jx != jx || last_jy != jy ? TRUE : FALSE);
   int move_dir = player->MovDir;
   int action = ACTION_DEFAULT;
+#else
+  int jx = player->jx, jy = player->jy;
+  int move_dir = player->MovDir;
+  int dx = (move_dir == MV_LEFT ? -1 : move_dir == MV_RIGHT ? +1 : 0);
+  int dy = (move_dir == MV_UP   ? -1 : move_dir == MV_DOWN  ? +1 : 0);
+  int last_jx = (player->is_moving ? jx - dx : jx);
+  int last_jy = (player->is_moving ? jy - dy : jy);
+  int next_jx = jx + dx;
+  int next_jy = jy + dy;
+  int sx = SCREENX(jx), sy = SCREENY(jy);
+  int sxx = 0, syy = 0;
+  int element = Feld[jx][jy], last_element = Feld[last_jx][last_jy];
+  int graphic;
+  int frame = 0;
+  boolean player_is_moving = (player->MovPos ? TRUE : FALSE);
+  int action = ACTION_DEFAULT;
+#endif
 
   if (!player->active || !IN_SCR_FIELD(SCREENX(last_jx), SCREENY(last_jy)))
     return;
@@ -567,17 +599,25 @@ void DrawPlayer(struct PlayerInfo *player)
 	    player->is_moving ? ACTION_MOVING :
 	    player->snapped ? ACTION_SNAPPING : ACTION_DEFAULT);
 
+#if 0
+  printf("::: '%s'\n", element_action_info[action].suffix);
+#endif
+
   InitPlayerGfxAnimation(player, action, move_dir);
 
   /* ----------------------------------------------------------------------- */
   /* draw things in the field the player is leaving, if needed               */
   /* ----------------------------------------------------------------------- */
 
+#if 1
+  if (player->is_moving)
+#else
   if (player_is_moving)
+#endif
   {
-    if (Store[last_jx][last_jy] && IS_DRAWABLE(last_element))
+    if (Back[last_jx][last_jy] && IS_DRAWABLE(last_element))
     {
-      DrawLevelElement(last_jx, last_jy, Store[last_jx][last_jy]);
+      DrawLevelElement(last_jx, last_jy, Back[last_jx][last_jy]);
 
       if (last_element == EL_DYNAMITE_ACTIVE ||
 	  last_element == EL_SP_DISK_RED_ACTIVE)
@@ -593,6 +633,10 @@ void DrawPlayer(struct PlayerInfo *player)
 
     if (player->Pushing && IN_SCR_FIELD(SCREENX(next_jx), SCREENY(next_jy)))
     {
+#if 1
+#if 1
+      DrawLevelElement(next_jx, next_jy, EL_EMPTY);
+#else
       if (player->GfxPos)
       {
   	if (Feld[next_jx][next_jy] == EL_SOKOBAN_FIELD_FULL)
@@ -602,6 +646,8 @@ void DrawPlayer(struct PlayerInfo *player)
       }
       else
   	DrawLevelField(next_jx, next_jy);
+#endif
+#endif
     }
   }
 
@@ -615,16 +661,21 @@ void DrawPlayer(struct PlayerInfo *player)
   /* draw things behind the player, if needed                                */
   /* ----------------------------------------------------------------------- */
 
-  if (Store[jx][jy])
-    DrawLevelElement(jx, jy, Store[jx][jy]);
+  if (Back[jx][jy])
+    DrawLevelElement(jx, jy, Back[jx][jy]);
   else if (IS_ACTIVE_BOMB(element))
     DrawLevelElement(jx, jy, EL_EMPTY);
   else
   {
     if (player_is_moving && GfxElement[jx][jy] != EL_UNDEFINED)
     {
+#if 1
+      if (CAN_BE_CRUMBLED(GfxElement[jx][jy]))
+	DrawLevelFieldCrumbledSandDigging(jx, jy, move_dir, player->StepFrame);
+#else
       if (GfxElement[jx][jy] == EL_SAND)
 	DrawLevelFieldCrumbledSandDigging(jx, jy, move_dir, player->StepFrame);
+#endif
       else
       {
 	int old_element = GfxElement[jx][jy];
@@ -689,29 +740,65 @@ void DrawPlayer(struct PlayerInfo *player)
   /* draw things the player is pushing, if needed                            */
   /* ----------------------------------------------------------------------- */
 
+#if 0
+  printf("::: %d, %d [%d, %d] [%d]\n",
+	 player->Pushing, player_is_moving, player->GfxAction,
+	 player->is_moving, player_is_moving);
+#endif
+
+#if 1
+  if (player->Pushing && player->is_moving)
+#else
   if (player->Pushing && player_is_moving)
+#endif
   {
     int px = SCREENX(next_jx), py = SCREENY(next_jy);
 
+    if (Back[next_jx][next_jy])
+      DrawLevelElement(next_jx, next_jy, Back[next_jx][next_jy]);
+
+#if 1
+    if ((sxx || syy) && element == EL_SOKOBAN_OBJECT)
+      DrawGraphicShiftedThruMask(px, py, sxx, syy, IMG_SOKOBAN_OBJECT, 0,
+				 NO_CUTTING);
+#else
     if ((sxx || syy) &&
 	(element == EL_SOKOBAN_FIELD_EMPTY ||
 	 Feld[next_jx][next_jy] == EL_SOKOBAN_FIELD_FULL))
       DrawGraphicShiftedThruMask(px, py, sxx, syy, IMG_SOKOBAN_OBJECT, 0,
 				 NO_CUTTING);
+#endif
     else
     {
+#if 1
+      int element = MovingOrBlocked2Element(next_jx, next_jy);
+#else
+#if 1
+      int element = Feld[jx][jy];
+#else
       int element = Feld[next_jx][next_jy];
+#endif
+#endif
+
+#if 1
       int graphic = el2img(element);
       int frame = 0;
 
+#if 0
       if ((sxx || syy) && IS_PUSHABLE(element))
+#endif
       {
-	graphic = el_act_dir2img(element, ACTION_MOVING, move_dir);
+	graphic = el_act_dir2img(element, ACTION_PUSHING, move_dir);
 	frame = getGraphicAnimationFrame(graphic, player->Frame);
       }
 
+#if 0
+      printf("::: pushing %d: %d ...\n", sxx, frame);
+#endif
+
       DrawGraphicShifted(px, py, sxx, syy, graphic, frame,
 			 NO_CUTTING, NO_MASKING);
+#endif
     }
   }
 
@@ -732,10 +819,14 @@ void DrawPlayer(struct PlayerInfo *player)
 
   if (player_is_moving && last_element == EL_EXPLOSION)
   {
+#if 1
+    int graphic = el_act2img(GfxElement[last_jx][last_jy], ACTION_EXPLODING);
+#else
     int stored = Store[last_jx][last_jy];
     int graphic = (game.emulation != EMU_SUPAPLEX ? IMG_EXPLOSION :
 		   stored == EL_SP_INFOTRON ? IMG_SP_EXPLOSION_INFOTRON :
 		   IMG_SP_EXPLOSION);
+#endif
     int delay = (game.emulation == EMU_SUPAPLEX ? 3 : 2);
     int phase = ExplodePhase[last_jx][last_jy] - 1;
     int frame = getGraphicAnimationFrame(graphic, phase - delay);
@@ -745,16 +836,20 @@ void DrawPlayer(struct PlayerInfo *player)
   }
 
   /* ----------------------------------------------------------------------- */
-  /* draw elements that stay over the player                                 */
+  /* draw elements the player is just walking/passing through/under          */
   /* ----------------------------------------------------------------------- */
 
   /* handle the field the player is leaving ... */
-  if (player_is_moving && IS_OVER_PLAYER(last_element))
+  if (player_is_moving && IS_ACCESSIBLE_INSIDE(last_element))
     DrawLevelField(last_jx, last_jy);
+  else if (player_is_moving && IS_ACCESSIBLE_UNDER(last_element))
+    DrawLevelFieldThruMask(last_jx, last_jy);
 
   /* ... and the field the player is entering */
-  if (IS_OVER_PLAYER(element))
+  if (IS_ACCESSIBLE_INSIDE(element))
     DrawLevelField(jx, jy);
+  else if (IS_ACCESSIBLE_UNDER(element))
+    DrawLevelFieldThruMask(jx, jy);
 
   if (setup.direct_draw)
   {
@@ -773,15 +868,29 @@ void DrawPlayer(struct PlayerInfo *player)
 
 void getGraphicSource(int graphic, int frame, Bitmap **bitmap, int *x, int *y)
 {
-  Bitmap *src_bitmap = graphic_info[graphic].bitmap;
-  int offset_x = graphic_info[graphic].offset_x;
-  int offset_y = graphic_info[graphic].offset_y;
-  int src_x = graphic_info[graphic].src_x + frame * offset_x;
-  int src_y = graphic_info[graphic].src_y + frame * offset_y;
+  struct GraphicInfo *g = &graphic_info[graphic];
 
-  *bitmap = src_bitmap;
-  *x = src_x;
-  *y = src_y;
+  *bitmap = g->bitmap;
+
+  if (g->offset_y == 0)		/* frames are ordered horizontally */
+  {
+    int max_width = g->anim_frames_per_line * g->width;
+
+    *x = (g->src_x + frame * g->offset_x) % max_width;
+    *y = g->src_y + (g->src_x + frame * g->offset_x) / max_width * g->height;
+  }
+  else if (g->offset_x == 0)	/* frames are ordered vertically */
+  {
+    int max_height = g->anim_frames_per_line * g->height;
+
+    *x = g->src_x + (g->src_y + frame * g->offset_y) / max_height * g->width;
+    *y = (g->src_y + frame * g->offset_y) % max_height;
+  }
+  else				/* frames are ordered diagonally */
+  {
+    *x = g->src_x + frame * g->offset_x;
+    *y = g->src_y + frame * g->offset_y;
+  }
 }
 
 void DrawGraphic(int x, int y, int graphic, int frame)
@@ -799,36 +908,13 @@ void DrawGraphic(int x, int y, int graphic, int frame)
   MarkTileDirty(x, y);
 }
 
-#if 0
-void DrawOldGraphicExt(DrawBuffer *dst_bitmap, int x, int y, int graphic)
-{
-  Bitmap *src_bitmap;
-  int src_x, src_y;
-
-  getOldGraphicSource(graphic, &src_bitmap, &src_x, &src_y);
-  BlitBitmap(src_bitmap, dst_bitmap, src_x, src_y, TILEX, TILEY, x, y);
-}
-#endif
-
 void DrawGraphicExt(DrawBuffer *dst_bitmap, int x, int y, int graphic,
 		    int frame)
 {
-#if 1
   Bitmap *src_bitmap;
   int src_x, src_y;
 
   getGraphicSource(graphic, frame, &src_bitmap, &src_x, &src_y);
-#else
-  Bitmap *src_bitmap = graphic_info[graphic].bitmap;
-  int src_x = graphic_info[graphic].src_x;
-  int src_y = graphic_info[graphic].src_y;
-  int offset_x = graphic_info[graphic].offset_x;
-  int offset_y = graphic_info[graphic].offset_y;
-
-  src_x += frame * offset_x;
-  src_y += frame * offset_y;
-#endif
-
   BlitBitmap(src_bitmap, dst_bitmap, src_x, src_y, TILEX, TILEY, x, y);
 }
 
@@ -883,32 +969,13 @@ void DrawMiniGraphic(int x, int y, int graphic)
 
 void getMiniGraphicSource(int graphic, Bitmap **bitmap, int *x, int *y)
 {
-  Bitmap *src_bitmap = graphic_info[graphic].bitmap;
+  struct GraphicInfo *g = &graphic_info[graphic];
   int mini_startx = 0;
-  int mini_starty = src_bitmap->height * 2 / 3;
-  int src_x = mini_startx + graphic_info[graphic].src_x / 2;
-  int src_y = mini_starty + graphic_info[graphic].src_y / 2;
+  int mini_starty = g->bitmap->height * 2 / 3;
 
-#if 0
-  /* !!! not needed anymore, because of automatically created mini graphics */
-  if (src_x + MINI_TILEX > src_bitmap->width ||
-      src_y + MINI_TILEY > src_bitmap->height)
-  {
-    /* graphic of desired size seems not to be contained in this image;
-       dirty workaround: get it from the middle of the normal sized image */
-
-    printf("::: using dirty workaround for %d (%d, %d)\n",
-	   graphic, src_bitmap->width, src_bitmap->height);
-
-    getGraphicSource(graphic, 0, &src_bitmap, &src_x, &src_y);
-    src_x += (TILEX / 2 - MINI_TILEX / 2);
-    src_y += (TILEY / 2 - MINI_TILEY / 2);
-  }
-#endif
-
-  *bitmap = src_bitmap;
-  *x = src_x;
-  *y = src_y;
+  *bitmap = g->bitmap;
+  *x = mini_startx + g->src_x / 2;
+  *y = mini_starty + g->src_y / 2;
 }
 
 void DrawMiniGraphicExt(DrawBuffer *d, int x, int y, int graphic)
@@ -925,11 +992,7 @@ void DrawGraphicShifted(int x,int y, int dx,int dy, int graphic, int frame,
 {
   Bitmap *src_bitmap;
   GC drawing_gc;
-  int src_x;
-  int src_y;
-  int offset_x;
-  int offset_y;
-
+  int src_x, src_y;
   int width = TILEX, height = TILEY;
   int cx = 0, cy = 0;
   int dest_x, dest_y;
@@ -1004,16 +1067,20 @@ void DrawGraphicShifted(int x,int y, int dx,int dy, int graphic, int frame,
       MarkTileDirty(x, y + SIGN(dy));
   }
 
+#if 1
+  getGraphicSource(graphic, frame, &src_bitmap, &src_x, &src_y);
+#else
   src_bitmap = graphic_info[graphic].bitmap;
   src_x = graphic_info[graphic].src_x;
   src_y = graphic_info[graphic].src_y;
   offset_x = graphic_info[graphic].offset_x;
   offset_y = graphic_info[graphic].offset_y;
 
-  drawing_gc = src_bitmap->stored_clip_gc;
-
   src_x += frame * offset_x;
   src_y += frame * offset_y;
+#endif
+
+  drawing_gc = src_bitmap->stored_clip_gc;
 
   src_x += cx;
   src_y += cy;
@@ -1073,9 +1140,9 @@ void DrawScreenElementExt(int x, int y, int dx, int dy, int element,
   {
     boolean left_stopped = FALSE, right_stopped = FALSE;
 
-    if (!IN_LEV_FIELD(lx - 1, ly) || IS_MAUER(Feld[lx - 1][ly]))
+    if (!IN_LEV_FIELD(lx - 1, ly) || IS_WALL(Feld[lx - 1][ly]))
       left_stopped = TRUE;
-    if (!IN_LEV_FIELD(lx + 1, ly) || IS_MAUER(Feld[lx + 1][ly]))
+    if (!IN_LEV_FIELD(lx + 1, ly) || IS_WALL(Feld[lx + 1][ly]))
       right_stopped = TRUE;
 
     if (left_stopped && right_stopped)
@@ -1091,27 +1158,6 @@ void DrawScreenElementExt(int x, int y, int dx, int dy, int element,
       frame = graphic_info[graphic].anim_frames - 1;
     }
   }
-#if 0
-  else if (IS_AMOEBOID(element) || element == EL_AMOEBA_DROPPING)
-  {
-    graphic = (element == EL_BD_AMOEBA ? IMG_BD_AMOEBA_PART1 :
-	       element == EL_AMOEBA_WET ? IMG_AMOEBA_WET_PART1 :
-	       element == EL_AMOEBA_DRY ? IMG_AMOEBA_DRY_PART1 :
-	       element == EL_AMOEBA_FULL ? IMG_AMOEBA_FULL_PART1 :
-	       IMG_AMOEBA_DEAD_PART1);
-
-    graphic += (x + 2 * y + 4) % 4;
-  }
-#endif
-
-#if 0
-  if (IS_AMOEBOID(element) || element == EL_AMOEBA_DROPPING)
-  {
-    if (Feld[lx][ly] == EL_AMOEBA_DROPPING)
-      printf("---> %d -> %d / %d [%d]\n",
-	     element, graphic, frame, GfxRandom[lx][ly]);
-  }
-#endif
 
   if (dx || dy)
     DrawGraphicShifted(x, y, dx, dy, graphic, frame, cut_mode, mask_mode);
@@ -1141,18 +1187,6 @@ void DrawLevelElementShifted(int x, int y, int dx, int dy, int element,
   DrawLevelElementExt(x, y, dx, dy, element, cut_mode, NO_MASKING);
 }
 
-#if 0
-void DrawOldScreenElementThruMask(int x, int y, int element)
-{
-  DrawOldScreenElementExt(x, y, 0, 0, element, NO_CUTTING, USE_MASKING);
-}
-
-void DrawScreenElementThruMask(int x, int y, int element)
-{
-  DrawScreenElementExt(x, y, 0, 0, element, NO_CUTTING, USE_MASKING);
-}
-#endif
-
 void DrawLevelElementThruMask(int x, int y, int element)
 {
   DrawLevelElementExt(x, y, 0, 0, element, NO_CUTTING, USE_MASKING);
@@ -1182,10 +1216,11 @@ static void DrawLevelFieldCrumbledSandExt(int x, int y, int graphic, int frame)
   if (!IN_LEV_FIELD(x, y))
     return;
 
-  element = (GfxElement[x][y] != EL_UNDEFINED ? GfxElement[x][y] : Feld[x][y]);
+  element = (GfxElement[x][y] != EL_UNDEFINED && Feld[x][y] != EL_EXPLOSION ?
+	     GfxElement[x][y] : Feld[x][y]);
 
   /* crumble field itself */
-  if (CAN_BE_CRUMBLED(element))
+  if (CAN_BE_CRUMBLED(element) && !IS_MOVING(x, y))
   {
     if (!IN_SCR_FIELD(sx, sy))
       return;
@@ -1197,11 +1232,19 @@ static void DrawLevelFieldCrumbledSandExt(int x, int y, int graphic, int frame)
       int xx = x + xy[i][0];
       int yy = y + xy[i][1];
 
-      element = (IN_LEV_FIELD(xx, yy) ? Feld[xx][yy] : EL_STEELWALL);
+      element = (IN_LEV_FIELD(xx, yy) ? Feld[xx][yy] : BorderElement);
 
-      if (CAN_BE_CRUMBLED(element))	/* neighbour is of same type */
+      /* check if neighbour field is of same type */
+      if (CAN_BE_CRUMBLED(element) && !IS_MOVING(xx, yy))
 	continue;
 
+#if 0
+      if (Feld[x][y] == EL_CUSTOM_START + 123)
+	printf("::: crumble [%d] THE CHAOS ENGINE (%d, %d): %d, %d\n",
+	       i, Feld[x][y], element,
+	       CAN_BE_CRUMBLED(element), IS_MOVING(x, y));
+#endif
+
       if (i == 1 || i == 2)
       {
 	width = snip;
@@ -1236,7 +1279,8 @@ static void DrawLevelFieldCrumbledSandExt(int x, int y, int graphic, int frame)
 
       if (!IN_LEV_FIELD(xx, yy) ||
 	  !IN_SCR_FIELD(sxx, syy) ||
-	  !CAN_BE_CRUMBLED(Feld[xx][yy]))
+	  !CAN_BE_CRUMBLED(Feld[xx][yy]) ||
+	  IS_MOVING(xx, yy))
 	continue;
 
       if (i == 1 || i == 2)
@@ -1270,8 +1314,13 @@ void DrawLevelFieldCrumbledSand(int x, int y)
 void DrawLevelFieldCrumbledSandDigging(int x, int y, int direction,
 				       int step_frame)
 {
+#if 1
+  int graphic1 = el_act_dir2img(GfxElement[x][y], ACTION_DIGGING, direction);
+  int graphic2 = el_act_dir2crm(GfxElement[x][y], ACTION_DIGGING, direction);
+#else
   int graphic1 = el_act_dir2img(EL_SAND,          ACTION_DIGGING, direction);
   int graphic2 = el_act_dir2img(EL_SAND_CRUMBLED, ACTION_DIGGING, direction);
+#endif
   int frame1 = getGraphicAnimationFrame(graphic1, step_frame);
   int frame2 = getGraphicAnimationFrame(graphic2, step_frame);
   int sx = SCREENX(x), sy = SCREENY(y);
@@ -1280,6 +1329,35 @@ void DrawLevelFieldCrumbledSandDigging(int x, int y, int direction,
   DrawLevelFieldCrumbledSandExt(x, y, graphic2, frame2);
 }
 
+void DrawLevelFieldCrumbledSandNeighbours(int x, int y)
+{
+  int sx = SCREENX(x), sy = SCREENY(y);
+  static int xy[4][2] =
+  {
+    { 0, -1 },
+    { -1, 0 },
+    { +1, 0 },
+    { 0, +1 }
+  };
+  int i;
+
+  for(i=0; i<4; i++)
+  {
+    int xx = x + xy[i][0];
+    int yy = y + xy[i][1];
+    int sxx = sx + xy[i][0];
+    int syy = sy + xy[i][1];
+
+    if (!IN_LEV_FIELD(xx, yy) ||
+	!IN_SCR_FIELD(sxx, syy) ||
+	!CAN_BE_CRUMBLED(Feld[xx][yy]) ||
+	IS_MOVING(xx, yy))
+      continue;
+
+    DrawLevelField(xx, yy);
+  }
+}
+
 static int getBorderElement(int x, int y)
 {
   int border[7][2] =
@@ -1293,12 +1371,12 @@ static int getBorderElement(int x, int y)
     { EL_STEELWALL,			EL_INVISIBLE_STEELWALL		   }
   };
   int steel_type = (BorderElement == EL_STEELWALL ? 0 : 1);
-  int steel_position = (x == -1 && y == -1			? 0 :
-			x == lev_fieldx && y == -1		? 1 :
-			x == -1 && y == lev_fieldy		? 2 :
-			x == lev_fieldx && y == lev_fieldy	? 3 :
-			x == -1 || x == lev_fieldx		? 4 :
-			y == -1 || y == lev_fieldy		? 5 : 6);
+  int steel_position = (x == -1		&& y == -1		? 0 :
+			x == lev_fieldx	&& y == -1		? 1 :
+			x == -1		&& y == lev_fieldy	? 2 :
+			x == lev_fieldx	&& y == lev_fieldy	? 3 :
+			x == -1		|| x == lev_fieldx	? 4 :
+			y == -1		|| y == lev_fieldy	? 5 : 6);
 
   return border[steel_position][steel_type];
 }
@@ -1447,6 +1525,31 @@ void DrawMiniElementOrWall(int sx, int sy, int scroll_x, int scroll_y)
     DrawMiniGraphic(sx, sy, el2edimg(getBorderElement(x, y)));
 }
 
+void DrawEnvelopeBorder(int sx, int sy, int ex, int ey)
+{
+  int border[8][2] =
+  {
+    { EL_STEELWALL_TOPLEFT,		EL_INVISIBLE_STEELWALL_TOPLEFT     },
+    { EL_STEELWALL_TOPRIGHT,		EL_INVISIBLE_STEELWALL_TOPRIGHT    },
+    { EL_STEELWALL_BOTTOMLEFT,		EL_INVISIBLE_STEELWALL_BOTTOMLEFT  },
+    { EL_STEELWALL_BOTTOMRIGHT,		EL_INVISIBLE_STEELWALL_BOTTOMRIGHT },
+    { EL_STEELWALL_VERTICAL,		EL_INVISIBLE_STEELWALL_VERTICAL    },
+    { EL_STEELWALL_HORIZONTAL,		EL_INVISIBLE_STEELWALL_HORIZONTAL  },
+    { EL_STEELWALL,			EL_INVISIBLE_STEELWALL		   },
+    { EL_EMPTY,				EL_EMPTY			   }
+  };
+  int steel_type = (BorderElement == EL_STEELWALL ? 0 : 1);
+  int steel_position = (ex == -1 && ey == -1 ? 0 :
+			ex == +1 && ey == -1 ? 1 :
+			ex == -1 && ey == +1 ? 2 :
+			ex == +1 && ey == +1 ? 3 :
+			ex == -1 || ex == +1 ? 4 :
+			ey == -1 || ey == +1 ? 5 : 7);
+  int element = border[steel_position][steel_type];
+
+  DrawMiniGraphic(sx, sy, el2edimg(element));
+}
+
 void getMicroGraphicSource(int graphic, Bitmap **bitmap, int *x, int *y)
 {
   Bitmap *src_bitmap = graphic_info[graphic].bitmap;
@@ -1455,17 +1558,6 @@ void getMicroGraphicSource(int graphic, Bitmap **bitmap, int *x, int *y)
   int src_x = mini_startx + graphic_info[graphic].src_x / 8;
   int src_y = mini_starty + graphic_info[graphic].src_y / 8;
 
-  if (src_x + MICRO_TILEX > src_bitmap->width ||
-      src_y + MICRO_TILEY > src_bitmap->height)
-  {
-    /* graphic of desired size seems not to be contained in this image;
-       dirty workaround: get it from the middle of the normal sized image */
-
-    getGraphicSource(graphic, 0, &src_bitmap, &src_x, &src_y);
-    src_x += (TILEX / 2 - MICRO_TILEX / 2);
-    src_y += (TILEY / 2 - MICRO_TILEY / 2);
-  }
-
   *bitmap = src_bitmap;
   *x = src_x;
   *y = src_y;
@@ -1529,7 +1621,7 @@ static void DrawMicroLevelExt(int xpos, int ypos, int from_x, int from_y)
 
       if (lx >= 0 && lx < lev_fieldx && ly >= 0 && ly < lev_fieldy)
 	DrawMicroElement(xpos + x * MICRO_TILEX, ypos + y * MICRO_TILEY,
-			 Ur[lx][ly]);
+			 level.field[lx][ly]);
       else if (lx >= -1 && lx < lev_fieldx+1 && ly >= -1 && ly < lev_fieldy+1
 	       && BorderElement != EL_EMPTY)
 	DrawMicroElement(xpos + x * MICRO_TILEX, ypos + y * MICRO_TILEY,
@@ -1571,8 +1663,7 @@ static void DrawMicroLevelLabelExt(int mode)
 
   if (strlen(label_text) > 0)
   {
-    int text_width = strlen(label_text) * getFontWidth(font_nr);
-    int lxpos = SX + (SXSIZE - text_width) / 2;
+    int lxpos = SX + (SXSIZE - getTextWidth(label_text, font_nr)) / 2;
     int lypos = MICROLABEL_YPOS;
 
     DrawText(lxpos, lypos, label_text, font_nr);
@@ -1589,7 +1680,8 @@ void DrawMicroLevel(int xpos, int ypos, boolean restart)
   static int label_state, label_counter;
   int last_game_status = game_status;	/* save current game status */
 
-  game_status = PSEUDO_PREVIEW;	/* force PREVIEW font on preview level */
+  /* force PREVIEW font on preview level */
+  game_status = GAME_MODE_PSEUDO_PREVIEW;
 
   if (restart)
   {
@@ -1607,8 +1699,8 @@ void DrawMicroLevel(int xpos, int ypos, boolean restart)
 
     if (leveldir_current->name)
     {
-      int len = strlen(leveldir_current->name);
-      int lxpos = SX + (SXSIZE - len * getFontWidth(FONT_TEXT_1)) / 2;
+      int text_width = getTextWidth(leveldir_current->name, FONT_TEXT_1);
+      int lxpos = SX + (SXSIZE - text_width) / 2;
       int lypos = SY + 352;
 
       DrawText(lxpos, lypos, leveldir_current->name, FONT_TEXT_1);
@@ -1709,16 +1801,24 @@ boolean Request(char *text, unsigned int req_state)
   unsigned int old_door_state;
   int last_game_status = game_status;	/* save current game status */
 
+#if 1
+  SetMouseCursor(CURSOR_DEFAULT);
+#endif
+
 #if defined(PLATFORM_UNIX)
   /* pause network game while waiting for request to answer */
   if (options.network &&
-      game_status == PLAYING &&
+      game_status == GAME_MODE_PLAYING &&
       req_state & REQUEST_WAIT_FOR)
     SendToServer_PausePlaying();
 #endif
 
   old_door_state = GetDoorState();
 
+  /* simulate releasing mouse button over last gadget, if still pressed */
+  if (button_status)
+    HandleGadgets(-1, -1, 0);
+
   UnmapAllGadgets();
 
   CloseDoor(DOOR_CLOSE_1);
@@ -1733,7 +1833,8 @@ boolean Request(char *text, unsigned int req_state)
   /* clear door drawing field */
   DrawBackground(DX, DY, DXSIZE, DYSIZE);
 
-  game_status = PSEUDO_DOOR;	/* force DOOR font on preview level */
+  /* force DOOR font on preview level */
+  game_status = GAME_MODE_PSEUDO_DOOR;
 
   /* write text for request */
   for(ty=0; ty < MAX_REQUEST_LINES; ty++)
@@ -1805,7 +1906,7 @@ boolean Request(char *text, unsigned int req_state)
     return FALSE;
   }
 
-  if (game_status != MAINMENU)
+  if (game_status != GAME_MODE_MAIN)
     InitAnimation();
 
   button_status = MB_RELEASED;
@@ -1814,6 +1915,10 @@ boolean Request(char *text, unsigned int req_state)
 
   SetDrawBackgroundMask(REDRAW_FIELD | REDRAW_DOOR_1);
 
+#if 0
+  SetMouseCursor(CURSOR_DEFAULT);
+#endif
+
   while(result < 0)
   {
     if (PendingEvent())
@@ -1929,7 +2034,7 @@ boolean Request(char *text, unsigned int req_state)
     Delay(10);
   }
 
-  if (game_status != MAINMENU)
+  if (game_status != GAME_MODE_MAIN)
     StopAnimation();
 
   UnmapToolButtons();
@@ -1954,7 +2059,7 @@ boolean Request(char *text, unsigned int req_state)
 #if defined(PLATFORM_UNIX)
   /* continue network game after request */
   if (options.network &&
-      game_status == PLAYING &&
+      game_status == GAME_MODE_PLAYING &&
       req_state & REQUEST_WAIT_FOR)
     SendToServer_ContinuePlaying();
 #endif
@@ -2008,8 +2113,8 @@ unsigned int MoveDoor(unsigned int door_state)
   static int door1 = DOOR_OPEN_1;
   static int door2 = DOOR_CLOSE_2;
   static unsigned long door_delay = 0;
-  int x, start, stepsize = global.door_step_offset;
-  unsigned long door_delay_value = global.door_step_delay;
+  int x, start, stepsize = door.step_offset;
+  unsigned long door_delay_value = door.step_delay;
 
   if (door_state == DOOR_GET_STATE)
     return(door1 | door2);
@@ -2147,7 +2252,7 @@ unsigned int MoveDoor(unsigned int door_state)
 
       BackToFront();
 
-      if (game_status == MAINMENU)
+      if (game_status == GAME_MODE_MAIN)
 	DoAnimation();
     }
   }
@@ -2189,21 +2294,6 @@ void UndrawSpecialEditorDoor()
   redraw_mask |= REDRAW_ALL;
 }
 
-#ifndef	TARGET_SDL
-int ReadPixel(DrawBuffer *bitmap, int x, int y)
-{
-  XImage *pixel_image;
-  unsigned long pixel_value;
-
-  pixel_image = XGetImage(display, bitmap->drawable,
-			  x, y, 1, 1, AllPlanes, ZPixmap);
-  pixel_value = XGetPixel(pixel_image, 0, 0);
-
-  XDestroyImage(pixel_image);
-
-  return pixel_value;
-}
-#endif
 
 /* ---------- new tool button stuff ---------------------------------------- */
 
@@ -2403,32 +2493,51 @@ int get_next_element(int element)
 
 int el_act_dir2img(int element, int action, int direction)
 {
+  element = GFX_ELEMENT(element);
   direction = MV_DIR_BIT(direction);
 
   return element_info[element].direction_graphic[action][direction];
 }
 
+static int el_act_dir2crm(int element, int action, int direction)
+{
+  element = GFX_ELEMENT(element);
+  direction = MV_DIR_BIT(direction);
+
+  return element_info[element].direction_crumbled[action][direction];
+}
+
 int el_act2img(int element, int action)
 {
+  element = GFX_ELEMENT(element);
+
   return element_info[element].graphic[action];
 }
 
 int el_dir2img(int element, int direction)
 {
+  element = GFX_ELEMENT(element);
+
   return el_act_dir2img(element, ACTION_DEFAULT, direction);
 }
 
 int el2img(int element)
 {
+  element = GFX_ELEMENT(element);
+
   return element_info[element].graphic[ACTION_DEFAULT];
 }
 
 int el2edimg(int element)
 {
+  element = GFX_ELEMENT(element);
+
   return element_info[element].special_graphic[GFX_SPECIAL_ARG_EDITOR];
 }
 
 int el2preimg(int element)
 {
+  element = GFX_ELEMENT(element);
+
   return element_info[element].special_graphic[GFX_SPECIAL_ARG_PREVIEW];
 }