X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Fgame.c;h=218c47f0b59bfc26ce7ec4e5e3ec8a2070500e3b;hb=ffda824157292e928e191ac15981652ad745e7c4;hp=6a771c300a535dfcf90c638b1d79970a64e4ae89;hpb=615a8c2934804dacec082ba713078d9fd7070b12;p=rocksndiamonds.git

diff --git a/src/game.c b/src/game.c
index 6a771c30..218c47f0 100644
--- a/src/game.c
+++ b/src/game.c
@@ -114,6 +114,9 @@ static void CloseAllOpenTimegates(void);
 static void CheckGravityMovement(struct PlayerInfo *);
 static void KillHeroUnlessProtected(int, int);
 
+static void CheckTriggeredElementChange(int, int);
+static void ChangeElementDoIt(int, int, int);
+
 static void PlaySoundLevel(int, int, int);
 static void PlaySoundLevelNearest(int, int, int);
 static void PlaySoundLevelAction(int, int, int);
@@ -300,8 +303,13 @@ static struct ChangingElementInfo changing_element_list[] =
 };
 
 static struct ChangingElementInfo changing_element[MAX_NUM_ELEMENTS];
+static unsigned long trigger_events[MAX_NUM_ELEMENTS];
 
 #define IS_AUTO_CHANGING(e)  (changing_element[e].base_element != EL_UNDEFINED)
+#define IS_JUST_CHANGING(x, y)	(ChangeDelay[x][y] != 0)
+#define IS_CHANGING(x, y)	(IS_AUTO_CHANGING(Feld[x][y]) || \
+				 IS_JUST_CHANGING(x, y))
+#define TRIGGERS_BY_COLLECTING(e) (trigger_events[e] & CE_OTHER_COLLECTING)
 
 
 void GetPlayerConfig()
@@ -377,7 +385,9 @@ static int getBeltDirFromBeltSwitchElement(int element)
 
 static void InitField(int x, int y, boolean init_game)
 {
-  switch (Feld[x][y])
+  int element = Feld[x][y];
+
+  switch (element)
   {
     case EL_SP_MURPHY:
       if (init_game)
@@ -574,6 +584,8 @@ static void InitField(int x, int y, boolean init_game)
       break;
 
     default:
+      if (IS_CUSTOM_ELEMENT(element) && CAN_MOVE(element))
+	InitMovDir(x, y);
       break;
   }
 }
@@ -635,32 +647,6 @@ static void InitGameEngine()
   game.initial_move_delay_value =
     (level.double_speed ? MOVE_DELAY_HIGH_SPEED : MOVE_DELAY_NORMAL_SPEED);
 
-#if 0
-  /* dynamically adjust element properties according to game engine version */
-  {
-    static int ep_em_slippery_wall[] =
-    {
-      EL_STEELWALL,
-      EL_WALL,
-      EL_EXPANDABLE_WALL,
-      EL_EXPANDABLE_WALL_HORIZONTAL,
-      EL_EXPANDABLE_WALL_VERTICAL,
-      EL_EXPANDABLE_WALL_ANY
-    };
-    static int ep_em_slippery_wall_num = SIZEOF_ARRAY_INT(ep_em_slippery_wall);
-
-    /* special EM style gems behaviour */
-    for (i=0; i<ep_em_slippery_wall_num; i++)
-      SET_PROPERTY(ep_em_slippery_wall[i], EP_EM_SLIPPERY_WALL,
-		   level.em_slippery_gems);
-
-    /* "EL_EXPANDABLE_WALL_GROWING" wasn't slippery for EM gems in 2.0.1 */
-    SET_PROPERTY(EL_EXPANDABLE_WALL_GROWING, EP_EM_SLIPPERY_WALL,
-		 (level.em_slippery_gems &&
-		  game.engine_version > VERSION_IDENT(2,0,1)));
-  }
-#endif
-
   /* initialize changing elements information */
   for (i=0; i<MAX_NUM_ELEMENTS; i++)
   {
@@ -696,7 +682,7 @@ static void InitGameEngine()
     struct ElementChangeInfo *change = &element_info[element].change;
 
     /* only add custom elements that change after fixed/random frame delay */
-    if (!IS_CHANGEABLE(element) || !HAS_CHANGE_EVENT(element, CE_DELAY))
+    if (!CAN_CHANGE(element) || !HAS_CHANGE_EVENT(element, CE_DELAY))
       continue;
 
     changing_element[element].base_element = element;
@@ -704,6 +690,16 @@ static void InitGameEngine()
     changing_element[element].change_delay = (change->delay_fixed *
 					      change->delay_frames);
   }
+
+  /* initialize trigger events information */
+  for (i=0; i<MAX_NUM_ELEMENTS; i++)
+    trigger_events[i] = EP_BITMASK_DEFAULT;
+
+  /* add trigger events from element change event properties */
+  for (i=0; i<MAX_NUM_ELEMENTS; i++)
+    if (HAS_CHANGE_EVENT(i, CE_BY_OTHER))
+      trigger_events[element_info[i].change.trigger] |=
+	element_info[i].change.events;
 }
 
 
@@ -857,6 +853,7 @@ void InitGame()
     {
       Feld[x][y] = Ur[x][y];
       MovPos[x][y] = MovDir[x][y] = MovDelay[x][y] = 0;
+      ChangeDelay[x][y] = 0;
       Store[x][y] = Store2[x][y] = StorePlayer[x][y] = Back[x][y] = 0;
       AmoebaNr[x][y] = 0;
       JustStopped[x][y] = 0;
@@ -1161,30 +1158,66 @@ void InitMovDir(int x, int y)
       break;
 
     default:
-      MovDir[x][y] = 1 << RND(4);
-      if (element != EL_BUG &&
-	  element != EL_SPACESHIP &&
-	  element != EL_BD_BUTTERFLY &&
-	  element != EL_BD_FIREFLY)
-	break;
-
-      for (i=0; i<4; i++)
+      if (IS_CUSTOM_ELEMENT(element))
       {
-	int x1 = x + xy[i][0];
-	int y1 = y + xy[i][1];
-
-	if (!IN_LEV_FIELD(x1, y1) || !IS_FREE(x1, y1))
+	if (element_info[element].move_direction_initial != MV_NO_MOVING)
+	  MovDir[x][y] = element_info[element].move_direction_initial;
+	else if (element_info[element].move_pattern == MV_ALL_DIRECTIONS)
+	  MovDir[x][y] = 1 << RND(4);
+	else if (element_info[element].move_pattern == MV_HORIZONTAL)
+	  MovDir[x][y] = (RND(2) ? MV_LEFT : MV_RIGHT);
+	else if (element_info[element].move_pattern == MV_VERTICAL)
+	  MovDir[x][y] = (RND(2) ? MV_UP : MV_DOWN);
+	else if (element_info[element].move_pattern & MV_ANY_DIRECTION)
+	  MovDir[x][y] = element_info[element].move_pattern;
+	else if (element_info[element].move_pattern == MV_ALONG_LEFT_SIDE ||
+		 element_info[element].move_pattern == MV_ALONG_RIGHT_SIDE)
 	{
-	  if (element == EL_BUG || element == EL_BD_BUTTERFLY)
+	  for (i=0; i<4; i++)
 	  {
-	    MovDir[x][y] = direction[0][i];
-	    break;
+	    int x1 = x + xy[i][0];
+	    int y1 = y + xy[i][1];
+
+	    if (!IN_LEV_FIELD(x1, y1) || !IS_FREE(x1, y1))
+	    {
+	      if (element_info[element].move_pattern == MV_ALONG_RIGHT_SIDE)
+		MovDir[x][y] = direction[0][i];
+	      else
+		MovDir[x][y] = direction[1][i];
+
+	      break;
+	    }
 	  }
-	  else if (element == EL_SPACESHIP || element == EL_BD_FIREFLY ||
-		   element == EL_SP_SNIKSNAK || element == EL_SP_ELECTRON)
+	}		 
+      }
+      else
+      {
+	MovDir[x][y] = 1 << RND(4);
+
+	if (element != EL_BUG &&
+	    element != EL_SPACESHIP &&
+	    element != EL_BD_BUTTERFLY &&
+	    element != EL_BD_FIREFLY)
+	  break;
+
+	for (i=0; i<4; i++)
+	{
+	  int x1 = x + xy[i][0];
+	  int y1 = y + xy[i][1];
+
+	  if (!IN_LEV_FIELD(x1, y1) || !IS_FREE(x1, y1))
 	  {
-	    MovDir[x][y] = direction[1][i];
-	    break;
+	    if (element == EL_BUG || element == EL_BD_BUTTERFLY)
+	    {
+	      MovDir[x][y] = direction[0][i];
+	      break;
+	    }
+	    else if (element == EL_SPACESHIP || element == EL_BD_FIREFLY ||
+		     element == EL_SP_SNIKSNAK || element == EL_SP_ELECTRON)
+	    {
+	      MovDir[x][y] = direction[1][i];
+	      break;
+	    }
 	  }
 	}
       }
@@ -1516,6 +1549,7 @@ static void RemoveField(int x, int y)
   MovPos[x][y] = 0;
   MovDir[x][y] = 0;
   MovDelay[x][y] = 0;
+  ChangeDelay[x][y] = 0;
 }
 
 void RemoveMovingField(int x, int y)
@@ -1552,6 +1586,7 @@ void RemoveMovingField(int x, int y)
   Feld[newx][newy] = EL_EMPTY;
   MovPos[oldx][oldy] = MovDir[oldx][oldy] = MovDelay[oldx][oldy] = 0;
   MovPos[newx][newy] = MovDir[newx][newy] = MovDelay[newx][newy] = 0;
+  ChangeDelay[oldx][oldy] = ChangeDelay[newx][newy] = 0;
   GfxAction[oldx][oldy] = GfxAction[newx][newy] = ACTION_DEFAULT;
 
   DrawLevelField(oldx, oldy);
@@ -1772,7 +1807,11 @@ void Explode(int ex, int ey, int phase, int mode)
       }
 
       Feld[x][y] = EL_EXPLOSION;
+#if 1
+      GfxElement[x][y] = center_element;
+#else
       GfxElement[x][y] = EL_UNDEFINED;
+#endif
       MovDir[x][y] = MovPos[x][y] = 0;
       AmoebaNr[x][y] = 0;
       ExplodePhase[x][y] = 1;
@@ -1811,7 +1850,7 @@ void Explode(int ex, int ey, int phase, int mode)
 
     if (IS_PLAYER(x, y))
       KillHeroUnlessProtected(x, y);
-    else if (CAN_EXPLODE(element))
+    else if (CAN_EXPLODE_BY_FIRE(element))
     {
       Feld[x][y] = Store2[x][y];
       Store2[x][y] = 0;
@@ -1827,12 +1866,13 @@ void Explode(int ex, int ey, int phase, int mode)
 
     element = Feld[x][y] = Store[x][y];
     Store[x][y] = Store2[x][y] = 0;
+    GfxElement[x][y] = EL_UNDEFINED;
 
     if (Back[x][y] && IS_INDESTRUCTIBLE(Back[x][y]))
       element = Feld[x][y] = Back[x][y];
     Back[x][y] = 0;
 
-    MovDir[x][y] = MovPos[x][y] = MovDelay[x][y] = 0;
+    MovDir[x][y] = MovPos[x][y] = MovDelay[x][y] = ChangeDelay[x][y] = 0;
     InitField(x, y, FALSE);
     if (CAN_MOVE(element))
       InitMovDir(x, y);
@@ -1843,10 +1883,14 @@ void Explode(int ex, int ey, int phase, int mode)
   }
   else if (phase >= delay && IN_SCR_FIELD(SCREENX(x), SCREENY(y)))
   {
+#if 1
+    int graphic = el_act2img(GfxElement[x][y], ACTION_EXPLODING);
+#else
     int stored = Store[x][y];
     int graphic = (game.emulation != EMU_SUPAPLEX ? IMG_EXPLOSION :
 		   stored == EL_SP_INFOTRON ? IMG_SP_EXPLOSION_INFOTRON :
 		   IMG_SP_EXPLOSION);
+#endif
     int frame = getGraphicAnimationFrame(graphic, phase - delay);
 
     if (phase == delay)
@@ -1923,10 +1967,22 @@ void Bang(int x, int y)
 {
   int element = Feld[x][y];
 
+  if (IS_PLAYER(x, y))
+  {
+    struct PlayerInfo *player = PLAYERINFO(x, y);
+
+    element = Feld[x][y] = (player->use_murphy_graphic ? EL_SP_MURPHY :
+			    player->element_nr);
+  }
+
+#if 1
+  PlaySoundLevelAction(x, y, ACTION_EXPLODING);
+#else
   if (game.emulation == EMU_SUPAPLEX)
     PlaySoundLevel(x, y, SND_SP_ELEMENT_EXPLODING);
   else
     PlaySoundLevel(x, y, SND_ELEMENT_EXPLODING);
+#endif
 
 #if 0
   if (IS_PLAYER(x, y))	/* remove objects that might cause smaller explosion */
@@ -1968,6 +2024,8 @@ void Bang(int x, int y)
       Explode(x, y, EX_PHASE_START, EX_NORMAL);
       break;
   }
+
+  CheckTriggeredElementChange(element, CE_OTHER_EXPLODING);
 }
 
 void SplashAcid(int x, int y)
@@ -2302,19 +2360,22 @@ void Impact(int x, int y)
 {
   boolean lastline = (y == lev_fieldy-1);
   boolean object_hit = FALSE;
+  boolean impact = (lastline || object_hit);
   int element = Feld[x][y];
-  int smashed = 0;
+  int smashed = EL_UNDEFINED;
 
   if (!lastline)	/* check if element below was hit */
   {
-    if (Feld[x][y+1] == EL_PLAYER_IS_LEAVING)
+    if (Feld[x][y + 1] == EL_PLAYER_IS_LEAVING)
       return;
 
-    object_hit = (!IS_FREE(x, y+1) && (!IS_MOVING(x, y+1) ||
-				      MovDir[x][y+1] != MV_DOWN ||
-				      MovPos[x][y+1] <= TILEY / 2));
+    object_hit = (!IS_FREE(x, y + 1) && (!IS_MOVING(x, y + 1) ||
+					 MovDir[x][y + 1] != MV_DOWN ||
+					 MovPos[x][y + 1] <= TILEY / 2));
     if (object_hit)
-      smashed = MovingOrBlocked2Element(x, y+1);
+      smashed = MovingOrBlocked2Element(x, y + 1);
+
+    impact = (lastline || object_hit);
   }
 
   if (!lastline && smashed == EL_ACID)	/* element falls into acid */
@@ -2323,33 +2384,46 @@ void Impact(int x, int y)
     return;
   }
 
-  if (lastline || object_hit)
+  if (impact)
   {
     ResetGfxAnimation(x, y);
     DrawLevelField(x, y);
   }
 
+#if 1
+  if (impact && CAN_EXPLODE_IMPACT(element))
+#else
   if ((element == EL_BOMB ||
        element == EL_SP_DISK_ORANGE ||
        element == EL_DX_SUPABOMB) &&
       (lastline || object_hit))		/* element is bomb */
+#endif
   {
     Bang(x, y);
     return;
   }
-  else if (element == EL_PEARL)
+  else if (impact && element == EL_PEARL)
   {
     Feld[x][y] = EL_PEARL_BREAKING;
     PlaySoundLevel(x, y, SND_PEARL_BREAKING);
     return;
   }
+  else if (impact && CAN_CHANGE(element) &&
+	   HAS_CHANGE_EVENT(element, CE_IMPACT))
+  {
+    PlaySoundLevelElementAction(x, y, element, ACTION_IMPACT);
+
+    ChangeElementDoIt(x, y, element_info[element].change.successor);
+
+    return;
+  }
 
-  if (element == EL_AMOEBA_DROP && (lastline || object_hit))
+  if (impact && element == EL_AMOEBA_DROP)
   {
-    if (object_hit && IS_PLAYER(x, y+1))
-      KillHeroUnlessProtected(x, y+1);
+    if (object_hit && IS_PLAYER(x, y + 1))
+      KillHeroUnlessProtected(x, y + 1);
     else if (object_hit && smashed == EL_PENGUIN)
-      Bang(x, y+1);
+      Bang(x, y + 1);
     else
     {
       Feld[x][y] = EL_AMOEBA_GROWING;
@@ -2360,7 +2434,11 @@ void Impact(int x, int y)
     return;
   }
 
+#if 1
+  if (object_hit)		/* check which object was hit */
+#else
   if (!lastline && object_hit)		/* check which object was hit */
+#endif
   {
     if (CAN_PASS_MAGIC_WALL(element) && 
 	(smashed == EL_MAGIC_WALL ||
@@ -2387,17 +2465,23 @@ void Impact(int x, int y)
 
     if (IS_PLAYER(x, y + 1))
     {
-      KillHeroUnlessProtected(x, y+1);
-      return;
+      if (CAN_SMASH_PLAYER(element))
+      {
+	KillHeroUnlessProtected(x, y + 1);
+	return;
+      }
     }
     else if (smashed == EL_PENGUIN)
     {
-      Bang(x, y + 1);
-      return;
+      if (CAN_SMASH_PLAYER(element))
+      {
+	Bang(x, y + 1);
+	return;
+      }
     }
     else if (element == EL_BD_DIAMOND)
     {
-      if (IS_ENEMY(smashed) && IS_BD_ELEMENT(smashed))
+      if (IS_CLASSIC_ENEMY(smashed) && IS_BD_ELEMENT(smashed))
       {
 	Bang(x, y + 1);
 	return;
@@ -2412,11 +2496,18 @@ void Impact(int x, int y)
       Bang(x, y + 1);
       return;
     }
+#if 1
+    else if (CAN_SMASH_EVERYTHING(element))
+#else
     else if (element == EL_ROCK ||
 	     element == EL_SP_ZONK ||
 	     element == EL_BD_ROCK)
+#endif
     {
-      if (IS_ENEMY(smashed) ||
+      if (IS_CLASSIC_ENEMY(smashed) ||
+#if 1
+	  CAN_EXPLODE_SMASHED(smashed))
+#else
 	  smashed == EL_BOMB ||
 	  smashed == EL_SP_DISK_ORANGE ||
 	  smashed == EL_DX_SUPABOMB ||
@@ -2424,11 +2515,16 @@ void Impact(int x, int y)
 	  smashed == EL_PIG ||
 	  smashed == EL_DRAGON ||
 	  smashed == EL_MOLE)
+#endif
       {
 	Bang(x, y + 1);
 	return;
       }
+#if 1
+      else if (!IS_MOVING(x, y + 1) && !IS_BLOCKED(x, y + 1))
+#else
       else if (!IS_MOVING(x, y + 1))
+#endif
       {
 	if (smashed == EL_LAMP ||
 	    smashed == EL_LAMP_ACTIVE)
@@ -2438,36 +2534,45 @@ void Impact(int x, int y)
 	}
 	else if (smashed == EL_NUT)
 	{
-	  Feld[x][y+1] = EL_NUT_BREAKING;
+	  Feld[x][y + 1] = EL_NUT_BREAKING;
 	  PlaySoundLevel(x, y, SND_NUT_BREAKING);
 	  RaiseScoreElement(EL_NUT);
 	  return;
 	}
 	else if (smashed == EL_PEARL)
 	{
-	  Feld[x][y+1] = EL_PEARL_BREAKING;
+	  Feld[x][y + 1] = EL_PEARL_BREAKING;
 	  PlaySoundLevel(x, y, SND_PEARL_BREAKING);
 	  return;
 	}
 	else if (smashed == EL_DIAMOND)
 	{
-	  Feld[x][y+1] = EL_EMPTY;
+#if 1
+	  Feld[x][y + 1] = EL_DIAMOND_BREAKING;
+#else
+	  Feld[x][y + 1] = EL_EMPTY;
+#endif
 	  PlaySoundLevel(x, y, SND_DIAMOND_BREAKING);
 	  return;
 	}
 	else if (IS_BELT_SWITCH(smashed))
 	{
-	  ToggleBeltSwitch(x, y+1);
+	  ToggleBeltSwitch(x, y + 1);
 	}
 	else if (smashed == EL_SWITCHGATE_SWITCH_UP ||
 		 smashed == EL_SWITCHGATE_SWITCH_DOWN)
 	{
-	  ToggleSwitchgateSwitch(x, y+1);
+	  ToggleSwitchgateSwitch(x, y + 1);
 	}
 	else if (smashed == EL_LIGHT_SWITCH ||
 		 smashed == EL_LIGHT_SWITCH_ACTIVE)
 	{
-	  ToggleLightSwitch(x, y+1);
+	  ToggleLightSwitch(x, y + 1);
+	}
+	else if (CAN_CHANGE(smashed) &&
+		 HAS_CHANGE_EVENT(smashed, CE_SMASHED))
+	{
+	  ChangeElementDoIt(x, y + 1, element_info[smashed].change.successor);
 	}
       }
     }
@@ -2475,12 +2580,12 @@ void Impact(int x, int y)
 
   /* play sound of magic wall / mill */
   if (!lastline &&
-      (Feld[x][y+1] == EL_MAGIC_WALL_ACTIVE ||
-       Feld[x][y+1] == EL_BD_MAGIC_WALL_ACTIVE))
+      (Feld[x][y + 1] == EL_MAGIC_WALL_ACTIVE ||
+       Feld[x][y + 1] == EL_BD_MAGIC_WALL_ACTIVE))
   {
-    if (Feld[x][y+1] == EL_MAGIC_WALL_ACTIVE)
+    if (Feld[x][y + 1] == EL_MAGIC_WALL_ACTIVE)
       PlaySoundLevel(x, y, SND_MAGIC_WALL_FILLING);
-    else if (Feld[x][y+1] == EL_BD_MAGIC_WALL_ACTIVE)
+    else if (Feld[x][y + 1] == EL_BD_MAGIC_WALL_ACTIVE)
       PlaySoundLevel(x, y, SND_BD_MAGIC_WALL_FILLING);
 
     return;
@@ -2498,26 +2603,26 @@ void TurnRound(int x, int y)
     int x, y;
   } move_xy[] =
   {
-    { 0, 0 },
-    {-1, 0 },
-    {+1, 0 },
-    { 0, 0 },
-    { 0, -1 },
-    { 0, 0 }, { 0, 0 }, { 0, 0 },
-    { 0, +1 }
+    {  0,  0 },
+    { -1,  0 },
+    { +1,  0 },
+    {  0,  0 },
+    {  0, -1 },
+    {  0,  0 }, { 0, 0 }, { 0, 0 },
+    {  0, +1 }
   };
   static struct
   {
     int left, right, back;
   } turn[] =
   {
-    { 0,	0,		0 },
+    { 0,	0,		0	 },
     { MV_DOWN,	MV_UP,		MV_RIGHT },
-    { MV_UP,	MV_DOWN,	MV_LEFT },
-    { 0,	0,		0 },
-    { MV_LEFT,	MV_RIGHT,	MV_DOWN },
-    { 0,0,0 },	{ 0,0,0 },	{ 0,0,0 },
-    { MV_RIGHT,	MV_LEFT,	MV_UP }
+    { MV_UP,	MV_DOWN,	MV_LEFT	 },
+    { 0,	0,		0	 },
+    { MV_LEFT,	MV_RIGHT,	MV_DOWN	 },
+    { 0,0,0 },	{ 0,0,0 },	{ 0,0,0	 },
+    { MV_RIGHT,	MV_LEFT,	MV_UP	 }
   };
 
   int element = Feld[x][y];
@@ -2836,8 +2941,8 @@ void TurnRound(int x, int y)
 
       for (i=0; i<4; i++)
       {
-    	int ex = x + xy[i%4][0];
-    	int ey = y + xy[i%4][1];
+    	int ex = x + xy[i % 4][0];
+    	int ey = y + xy[i % 4][1];
 
     	if (IN_LEV_FIELD(ex, ey) && Feld[ex][ey] == EL_EXIT_OPEN)
 	{
@@ -2849,21 +2954,21 @@ void TurnRound(int x, int y)
     }
 
     MovDir[x][y] = MV_NO_MOVING;
-    if (attr_x<x)
+    if (attr_x < x)
       MovDir[x][y] |= (AllPlayersGone ? MV_RIGHT : MV_LEFT);
-    else if (attr_x>x)
+    else if (attr_x > x)
       MovDir[x][y] |= (AllPlayersGone ? MV_LEFT : MV_RIGHT);
-    if (attr_y<y)
+    if (attr_y < y)
       MovDir[x][y] |= (AllPlayersGone ? MV_DOWN : MV_UP);
-    else if (attr_y>y)
+    else if (attr_y > y)
       MovDir[x][y] |= (AllPlayersGone ? MV_UP : MV_DOWN);
 
     if (element == EL_ROBOT)
     {
       int newx, newy;
 
-      if ((MovDir[x][y]&(MV_LEFT|MV_RIGHT)) && (MovDir[x][y]&(MV_UP|MV_DOWN)))
-	MovDir[x][y] &= (RND(2) ? (MV_LEFT|MV_RIGHT) : (MV_UP|MV_DOWN));
+      if (MovDir[x][y] & MV_HORIZONTAL && MovDir[x][y] & MV_VERTICAL)
+	MovDir[x][y] &= (RND(2) ? MV_HORIZONTAL : MV_VERTICAL);
       Moving2Blocked(x, y, &newx, &newy);
 
       if (IN_LEV_FIELD(newx, newy) && IS_FREE_OR_PLAYER(newx, newy))
@@ -2877,13 +2982,13 @@ void TurnRound(int x, int y)
 
       MovDelay[x][y] = 1;
 
-      if ((MovDir[x][y]&(MV_LEFT|MV_RIGHT)) && (MovDir[x][y]&(MV_UP|MV_DOWN)))
+      if (MovDir[x][y] & MV_HORIZONTAL && MovDir[x][y] & MV_VERTICAL)
       {
 	boolean first_horiz = RND(2);
 	int new_move_dir = MovDir[x][y];
 
 	MovDir[x][y] =
-	  new_move_dir & (first_horiz ? (MV_LEFT|MV_RIGHT) : (MV_UP|MV_DOWN));
+	  new_move_dir & (first_horiz ? MV_HORIZONTAL : MV_VERTICAL);
 	Moving2Blocked(x, y, &newx, &newy);
 
 	if (IN_LEV_FIELD(newx, newy) &&
@@ -2895,7 +3000,7 @@ void TurnRound(int x, int y)
 	  return;
 
 	MovDir[x][y] =
-	  new_move_dir & (!first_horiz ? (MV_LEFT|MV_RIGHT) : (MV_UP|MV_DOWN));
+	  new_move_dir & (!first_horiz ? MV_HORIZONTAL : MV_VERTICAL);
 	Moving2Blocked(x, y, &newx, &newy);
 
 	if (IN_LEV_FIELD(newx, newy) &&
@@ -2911,6 +3016,148 @@ void TurnRound(int x, int y)
       }
     }
   }
+  else if (element_info[element].move_pattern == MV_ALL_DIRECTIONS)
+  {
+    boolean can_turn_left = FALSE, can_turn_right = FALSE;
+
+    if (IN_LEV_FIELD(left_x, left_y) &&
+	(IS_FREE(left_x, left_y) ||
+	 (DONT_COLLIDE_WITH(element) && IS_FREE_OR_PLAYER(left_x, left_y))))
+      can_turn_left = TRUE;
+    if (IN_LEV_FIELD(right_x, right_y) &&
+	(IS_FREE(right_x, right_y) ||
+	 (DONT_COLLIDE_WITH(element) && IS_FREE_OR_PLAYER(right_x, right_y))))
+      can_turn_right = TRUE;
+
+    if (can_turn_left && can_turn_right)
+      MovDir[x][y] = (RND(3) ? (RND(2) ? left_dir : right_dir) : back_dir);
+    else if (can_turn_left)
+      MovDir[x][y] = (RND(2) ? left_dir : back_dir);
+    else if (can_turn_right)
+      MovDir[x][y] = (RND(2) ? right_dir : back_dir);
+    else
+      MovDir[x][y] = back_dir;
+
+    MovDelay[x][y] = GET_NEW_MOVE_DELAY(element);
+  }
+  else if (element_info[element].move_pattern == MV_HORIZONTAL ||
+	   element_info[element].move_pattern == MV_VERTICAL)
+  {
+    if (element_info[element].move_pattern & old_move_dir)
+      MovDir[x][y] = back_dir;
+    else if (element_info[element].move_pattern == MV_HORIZONTAL)
+      MovDir[x][y] = (RND(2) ? MV_LEFT : MV_RIGHT);
+    else if (element_info[element].move_pattern == MV_VERTICAL)
+      MovDir[x][y] = (RND(2) ? MV_UP : MV_DOWN);
+
+    MovDelay[x][y] = GET_NEW_MOVE_DELAY(element);
+  }
+  else if (element_info[element].move_pattern & MV_ANY_DIRECTION)
+  {
+    MovDir[x][y] = element_info[element].move_pattern;
+    MovDelay[x][y] = GET_NEW_MOVE_DELAY(element);
+  }
+  else if (element_info[element].move_pattern == MV_ALONG_LEFT_SIDE)
+  {
+    if (IN_LEV_FIELD(left_x, left_y) &&
+	(IS_FREE(left_x, left_y) ||
+	 (DONT_COLLIDE_WITH(element) && IS_FREE_OR_PLAYER(left_x, left_y))))
+      MovDir[x][y] = left_dir;
+    else if (!IN_LEV_FIELD(move_x, move_y) ||
+	     (!IS_FREE(move_x, move_y) &&
+	      (!DONT_COLLIDE_WITH(element) || !IS_FREE_OR_PLAYER(move_x, move_y))))
+      MovDir[x][y] = right_dir;
+
+    if (MovDir[x][y] != old_move_dir)
+      MovDelay[x][y] = GET_NEW_MOVE_DELAY(element);
+  }
+  else if (element_info[element].move_pattern == MV_ALONG_RIGHT_SIDE)
+  {
+    if (IN_LEV_FIELD(right_x, right_y) &&
+	(IS_FREE(right_x, right_y) ||
+	 (DONT_COLLIDE_WITH(element) && IS_FREE_OR_PLAYER(right_x, right_y))))
+      MovDir[x][y] = right_dir;
+    else if (!IN_LEV_FIELD(move_x, move_y) ||
+	     (!IS_FREE(move_x, move_y) &&
+	      (!DONT_COLLIDE_WITH(element) || !IS_FREE_OR_PLAYER(move_x, move_y))))
+      MovDir[x][y] = left_dir;
+
+    if (MovDir[x][y] != old_move_dir)
+      MovDelay[x][y] = GET_NEW_MOVE_DELAY(element);
+  }
+  else if (element_info[element].move_pattern == MV_TOWARDS_PLAYER ||
+	   element_info[element].move_pattern == MV_AWAY_FROM_PLAYER)
+  {
+    int attr_x = -1, attr_y = -1;
+    int newx, newy;
+    boolean move_away =
+      (element_info[element].move_pattern == MV_AWAY_FROM_PLAYER);
+
+    if (AllPlayersGone)
+    {
+      attr_x = ExitX;
+      attr_y = ExitY;
+    }
+    else
+    {
+      int i;
+
+      for (i=0; i<MAX_PLAYERS; i++)
+      {
+	struct PlayerInfo *player = &stored_player[i];
+	int jx = player->jx, jy = player->jy;
+
+	if (!player->active)
+	  continue;
+
+	if (attr_x == -1 || ABS(jx-x)+ABS(jy-y) < ABS(attr_x-x)+ABS(attr_y-y))
+	{
+	  attr_x = jx;
+	  attr_y = jy;
+	}
+      }
+    }
+
+    MovDir[x][y] = MV_NO_MOVING;
+    if (attr_x < x)
+      MovDir[x][y] |= (move_away ? MV_RIGHT : MV_LEFT);
+    else if (attr_x > x)
+      MovDir[x][y] |= (move_away ? MV_LEFT : MV_RIGHT);
+    if (attr_y < y)
+      MovDir[x][y] |= (move_away ? MV_DOWN : MV_UP);
+    else if (attr_y > y)
+      MovDir[x][y] |= (move_away ? MV_UP : MV_DOWN);
+
+    MovDelay[x][y] = GET_NEW_MOVE_DELAY(element);
+
+    if (MovDir[x][y] & MV_HORIZONTAL && MovDir[x][y] & MV_VERTICAL)
+    {
+      boolean first_horiz = RND(2);
+      int new_move_dir = MovDir[x][y];
+
+      MovDir[x][y] =
+	new_move_dir & (first_horiz ? MV_HORIZONTAL : MV_VERTICAL);
+      Moving2Blocked(x, y, &newx, &newy);
+
+      if (IN_LEV_FIELD(newx, newy) && (IS_FREE(newx, newy) ||
+				       (DONT_COLLIDE_WITH(element) &&
+					IS_FREE_OR_PLAYER(newx, newy)) ||
+				       Feld[newx][newy] == EL_ACID))
+	return;
+
+      MovDir[x][y] =
+	new_move_dir & (!first_horiz ? MV_HORIZONTAL : MV_VERTICAL);
+      Moving2Blocked(x, y, &newx, &newy);
+
+      if (IN_LEV_FIELD(newx, newy) && (IS_FREE(newx, newy) ||
+				       (DONT_COLLIDE_WITH(element) &&
+					IS_FREE_OR_PLAYER(newx, newy)) ||
+				       Feld[newx][newy] == EL_ACID))
+	return;
+
+      MovDir[x][y] = old_move_dir;
+    }
+  }
 }
 
 static boolean JustBeingPushed(int x, int y)
@@ -2953,7 +3200,7 @@ void StartMoving(int x, int y)
 
     if (element == EL_QUICKSAND_FULL)
     {
-      if (IS_FREE(x, y+1))
+      if (IS_FREE(x, y + 1))
       {
 	InitMovingField(x, y, MV_DOWN);
 	started_moving = TRUE;
@@ -2966,7 +3213,7 @@ void StartMoving(int x, int y)
 	PlaySoundLevel(x, y, SND_QUICKSAND_EMPTYING);
 #endif
       }
-      else if (Feld[x][y+1] == EL_QUICKSAND_EMPTY)
+      else if (Feld[x][y + 1] == EL_QUICKSAND_EMPTY)
       {
 	if (!MovDelay[x][y])
 	  MovDelay[x][y] = TILEY + 1;
@@ -2979,8 +3226,8 @@ void StartMoving(int x, int y)
 	}
 
 	Feld[x][y] = EL_QUICKSAND_EMPTY;
-	Feld[x][y+1] = EL_QUICKSAND_FULL;
-	Store[x][y+1] = Store[x][y];
+	Feld[x][y + 1] = EL_QUICKSAND_FULL;
+	Store[x][y + 1] = Store[x][y];
 	Store[x][y] = 0;
 #if 1
 	PlaySoundLevelAction(x, y, ACTION_FILLING);
@@ -2990,7 +3237,7 @@ void StartMoving(int x, int y)
       }
     }
     else if ((element == EL_ROCK || element == EL_BD_ROCK) &&
-	     Feld[x][y+1] == EL_QUICKSAND_EMPTY)
+	     Feld[x][y + 1] == EL_QUICKSAND_EMPTY)
     {
       InitMovingField(x, y, MV_DOWN);
       started_moving = TRUE;
@@ -3005,7 +3252,7 @@ void StartMoving(int x, int y)
     }
     else if (element == EL_MAGIC_WALL_FULL)
     {
-      if (IS_FREE(x, y+1))
+      if (IS_FREE(x, y + 1))
       {
 	InitMovingField(x, y, MV_DOWN);
 	started_moving = TRUE;
@@ -3013,7 +3260,7 @@ void StartMoving(int x, int y)
 	Feld[x][y] = EL_MAGIC_WALL_EMPTYING;
 	Store[x][y] = EL_CHANGED(Store[x][y]);
       }
-      else if (Feld[x][y+1] == EL_MAGIC_WALL_ACTIVE)
+      else if (Feld[x][y + 1] == EL_MAGIC_WALL_ACTIVE)
       {
 	if (!MovDelay[x][y])
 	  MovDelay[x][y] = TILEY/4 + 1;
@@ -3026,14 +3273,14 @@ void StartMoving(int x, int y)
 	}
 
 	Feld[x][y] = EL_MAGIC_WALL_ACTIVE;
-	Feld[x][y+1] = EL_MAGIC_WALL_FULL;
-	Store[x][y+1] = EL_CHANGED(Store[x][y]);
+	Feld[x][y + 1] = EL_MAGIC_WALL_FULL;
+	Store[x][y + 1] = EL_CHANGED(Store[x][y]);
 	Store[x][y] = 0;
       }
     }
     else if (element == EL_BD_MAGIC_WALL_FULL)
     {
-      if (IS_FREE(x, y+1))
+      if (IS_FREE(x, y + 1))
       {
 	InitMovingField(x, y, MV_DOWN);
 	started_moving = TRUE;
@@ -3041,7 +3288,7 @@ void StartMoving(int x, int y)
 	Feld[x][y] = EL_BD_MAGIC_WALL_EMPTYING;
 	Store[x][y] = EL_CHANGED2(Store[x][y]);
       }
-      else if (Feld[x][y+1] == EL_BD_MAGIC_WALL_ACTIVE)
+      else if (Feld[x][y + 1] == EL_BD_MAGIC_WALL_ACTIVE)
       {
 	if (!MovDelay[x][y])
 	  MovDelay[x][y] = TILEY/4 + 1;
@@ -3054,27 +3301,27 @@ void StartMoving(int x, int y)
 	}
 
 	Feld[x][y] = EL_BD_MAGIC_WALL_ACTIVE;
-	Feld[x][y+1] = EL_BD_MAGIC_WALL_FULL;
-	Store[x][y+1] = EL_CHANGED2(Store[x][y]);
+	Feld[x][y + 1] = EL_BD_MAGIC_WALL_FULL;
+	Store[x][y + 1] = EL_CHANGED2(Store[x][y]);
 	Store[x][y] = 0;
       }
     }
     else if (CAN_PASS_MAGIC_WALL(element) &&
-	     (Feld[x][y+1] == EL_MAGIC_WALL_ACTIVE ||
-	      Feld[x][y+1] == EL_BD_MAGIC_WALL_ACTIVE))
+	     (Feld[x][y + 1] == EL_MAGIC_WALL_ACTIVE ||
+	      Feld[x][y + 1] == EL_BD_MAGIC_WALL_ACTIVE))
     {
       InitMovingField(x, y, MV_DOWN);
       started_moving = TRUE;
 
       Feld[x][y] =
-	(Feld[x][y+1] == EL_MAGIC_WALL_ACTIVE ? EL_MAGIC_WALL_FILLING :
+	(Feld[x][y + 1] == EL_MAGIC_WALL_ACTIVE ? EL_MAGIC_WALL_FILLING :
 	 EL_BD_MAGIC_WALL_FILLING);
       Store[x][y] = element;
     }
 #if 0
-    else if (CAN_SMASH(element) && Feld[x][y+1] == EL_ACID)
+    else if (CAN_SMASH(element) && Feld[x][y + 1] == EL_ACID)
 #else
-    else if (CAN_FALL(element) && Feld[x][y+1] == EL_ACID)
+    else if (CAN_FALL(element) && Feld[x][y + 1] == EL_ACID)
 #endif
     {
       SplashAcid(x, y);
@@ -3085,15 +3332,15 @@ void StartMoving(int x, int y)
       Store[x][y] = EL_ACID;
 #if 0
       /* !!! TEST !!! better use "_FALLING" etc. !!! */
-      GfxAction[x][y+1] = ACTION_ACTIVE;
+      GfxAction[x][y + 1] = ACTION_ACTIVE;
 #endif
     }
-    else if (CAN_SMASH(element) && Feld[x][y+1] == EL_BLOCKED &&
+    else if (CAN_SMASH(element) && Feld[x][y + 1] == EL_BLOCKED &&
 	     JustStopped[x][y])
     {
       Impact(x, y);
     }
-    else if (IS_FREE(x, y+1) && element == EL_SPRING && use_spring_bug)
+    else if (IS_FREE(x, y + 1) && element == EL_SPRING && use_spring_bug)
     {
       if (MovDir[x][y] == MV_NO_MOVING)
       {
@@ -3101,7 +3348,7 @@ void StartMoving(int x, int y)
 	started_moving = TRUE;
       }
     }
-    else if (IS_FREE(x, y+1))
+    else if (IS_FREE(x, y + 1) || Feld[x][y + 1] == EL_DIAMOND_BREAKING)
     {
       if (JustStopped[x][y])	/* prevent animation from being restarted */
 	MovDir[x][y] = MV_DOWN;
@@ -3114,28 +3361,28 @@ void StartMoving(int x, int y)
       Feld[x][y] = EL_AMOEBA_GROWING;
       Store[x][y] = EL_AMOEBA_WET;
     }
-    /* Store[x][y+1] must be zero, because:
-       (EL_QUICKSAND_FULL -> EL_ROCK): Store[x][y+1] == EL_QUICKSAND_EMPTY
+    /* Store[x][y + 1] must be zero, because:
+       (EL_QUICKSAND_FULL -> EL_ROCK): Store[x][y + 1] == EL_QUICKSAND_EMPTY
     */
 #if 0
 #if OLD_GAME_BEHAVIOUR
-    else if (IS_SLIPPERY(Feld[x][y+1]) && !Store[x][y+1])
+    else if (IS_SLIPPERY(Feld[x][y + 1]) && !Store[x][y + 1])
 #else
-    else if (IS_SLIPPERY(Feld[x][y+1]) && !Store[x][y+1] &&
-	     !IS_FALLING(x, y+1) && !JustStopped[x][y+1] &&
+    else if (IS_SLIPPERY(Feld[x][y + 1]) && !Store[x][y + 1] &&
+	     !IS_FALLING(x, y + 1) && !JustStopped[x][y + 1] &&
 	     element != EL_DX_SUPABOMB)
 #endif
 #else
-    else if ((IS_SLIPPERY(Feld[x][y+1]) ||
-	      (IS_EM_SLIPPERY_WALL(Feld[x][y+1]) && IS_GEM(element))) &&
-	     !IS_FALLING(x, y+1) && !JustStopped[x][y+1] &&
+    else if ((IS_SLIPPERY(Feld[x][y + 1]) ||
+	      (IS_EM_SLIPPERY_WALL(Feld[x][y + 1]) && IS_GEM(element))) &&
+	     !IS_FALLING(x, y + 1) && !JustStopped[x][y + 1] &&
 	     element != EL_DX_SUPABOMB && element != EL_SP_DISK_ORANGE)
 #endif
     {
       boolean left  = (x>0 && IS_FREE(x-1, y) &&
-		       (IS_FREE(x-1, y+1) || Feld[x-1][y+1] == EL_ACID));
+		       (IS_FREE(x-1, y + 1) || Feld[x-1][y + 1] == EL_ACID));
       boolean right = (x<lev_fieldx-1 && IS_FREE(x+1, y) &&
-		       (IS_FREE(x+1, y+1) || Feld[x+1][y+1] == EL_ACID));
+		       (IS_FREE(x+1, y + 1) || Feld[x+1][y + 1] == EL_ACID));
 
       if (left || right)
       {
@@ -3148,11 +3395,11 @@ void StartMoving(int x, int y)
 	started_moving = TRUE;
       }
     }
-    else if (IS_BELT_ACTIVE(Feld[x][y+1]))
+    else if (IS_BELT_ACTIVE(Feld[x][y + 1]))
     {
       boolean left_is_free  = (x>0 && IS_FREE(x-1, y));
       boolean right_is_free = (x<lev_fieldx-1 && IS_FREE(x+1, y));
-      int belt_nr = getBeltNrFromBeltActiveElement(Feld[x][y+1]);
+      int belt_nr = getBeltNrFromBeltActiveElement(Feld[x][y + 1]);
       int belt_dir = game.belt_dir[belt_nr];
 
       if ((belt_dir == MV_LEFT  && left_is_free) ||
@@ -3198,7 +3445,8 @@ void StartMoving(int x, int y)
 
       if (element != EL_YAMYAM &&
 	  element != EL_DARK_YAMYAM &&
-	  element != EL_PACMAN)
+	  element != EL_PACMAN &&
+	  !(element_info[element].move_pattern & MV_ANY_DIRECTION))
       {
 	TurnRound(x, y);
 
@@ -3215,11 +3463,36 @@ void StartMoving(int x, int y)
     {
       MovDelay[x][y]--;
 
+#if 0
+      if (element == EL_YAMYAM)
+      {
+	printf("::: %d\n",
+	       el_act_dir2img(EL_YAMYAM, ACTION_WAITING, MV_LEFT));
+	DrawLevelElementAnimation(x, y, element);
+      }
+#endif
+
+      if (MovDelay[x][y])	/* element still has to wait some time */
+      {
+#if 0
+	/* !!! PLACE THIS SOMEWHERE AFTER "TurnRound()" !!! */
+	ResetGfxAnimation(x, y);
+#endif
+	GfxAction[x][y] = ACTION_WAITING;
+      }
+
       if (element == EL_ROBOT ||
+#if 0
+	  element == EL_PACMAN ||
+#endif
 	  element == EL_YAMYAM ||
 	  element == EL_DARK_YAMYAM)
       {
+#if 0
+	DrawLevelElementAnimation(x, y, element);
+#else
 	DrawLevelElementAnimationIfNeeded(x, y, element);
+#endif
 	PlaySoundLevelAction(x, y, ACTION_WAITING);
       }
       else if (element == EL_SP_ELECTRON)
@@ -3249,7 +3522,7 @@ void StartMoving(int x, int y)
 	  {
 	    int flamed = MovingOrBlocked2Element(xx, yy);
 
-	    if (IS_ENEMY(flamed) || CAN_EXPLODE(flamed))
+	    if (IS_CLASSIC_ENEMY(flamed) || CAN_EXPLODE_BY_FIRE(flamed))
 	      Bang(xx, yy);
 	    else
 	      RemoveMovingField(xx, yy);
@@ -3273,29 +3546,33 @@ void StartMoving(int x, int y)
 
 	return;
       }
+
+      GfxAction[x][y] = ACTION_MOVING;
     }
 
     /* now make next step */
 
     Moving2Blocked(x, y, &newx, &newy);	/* get next screen position */
 
-    if (IS_ENEMY(element) && IS_PLAYER(newx, newy) &&
+    if (DONT_COLLIDE_WITH(element) && IS_PLAYER(newx, newy) &&
 	!PLAYER_PROTECTED(newx, newy))
     {
-
 #if 1
       TestIfBadThingRunsIntoHero(x, y, MovDir[x][y]);
       return;
 #else
-      /* enemy got the player */
+      /* player killed by element which is deadly when colliding with */
       MovDir[x][y] = 0;
       KillHero(PLAYERINFO(newx, newy));
       return;
 #endif
 
     }
-    else if ((element == EL_PENGUIN || element == EL_ROBOT ||
-	      element == EL_SATELLITE || element == EL_BALLOON) &&
+    else if ((element == EL_PENGUIN ||
+	      element == EL_ROBOT ||
+	      element == EL_SATELLITE ||
+	      element == EL_BALLOON ||
+	      IS_CUSTOM_ELEMENT(element)) &&
 	     IN_LEV_FIELD(newx, newy) &&
 	     MovDir[x][y] == MV_DOWN && Feld[newx][newy] == EL_ACID)
     {
@@ -3329,6 +3606,8 @@ void StartMoving(int x, int y)
       }
       else if (!IS_FREE(newx, newy))
       {
+	GfxAction[x][y] = ACTION_WAITING;
+
 	if (IS_PLAYER(x, y))
 	  DrawPlayerField(x, y);
 	else
@@ -3380,7 +3659,9 @@ void StartMoving(int x, int y)
 	int element2 = (IN_LEV_FIELD(newx2, newy2) ?
 			MovingOrBlocked2Element(newx2, newy2) : EL_STEELWALL);
 
-	if ((wanna_flame || IS_ENEMY(element1) || IS_ENEMY(element2)) &&
+	if ((wanna_flame ||
+	     IS_CLASSIC_ENEMY(element1) ||
+	     IS_CLASSIC_ENEMY(element2)) &&
 	    element1 != EL_DRAGON && element2 != EL_DRAGON &&
 	    element1 != EL_FLAMES && element2 != EL_FLAMES)
 	{
@@ -3473,23 +3754,30 @@ void StartMoving(int x, int y)
 
       TurnRound(x, y);
 
-      if (element == EL_BUG || element == EL_SPACESHIP ||
+#if 1
+      DrawLevelElementAnimation(x, y, element);
+#else
+      if (element == EL_BUG ||
+	  element == EL_SPACESHIP ||
 	  element == EL_SP_SNIKSNAK)
 	DrawLevelField(x, y);
-      else if (element == EL_BUG || element == EL_SPACESHIP ||
-	       element == EL_SP_SNIKSNAK || element == EL_MOLE)
+      else if (element == EL_MOLE)
 	DrawLevelField(x, y);
-      else if (element == EL_BD_BUTTERFLY || element == EL_BD_FIREFLY)
+      else if (element == EL_BD_BUTTERFLY ||
+	       element == EL_BD_FIREFLY)
 	DrawLevelElementAnimationIfNeeded(x, y, element);
       else if (element == EL_SATELLITE)
 	DrawLevelElementAnimationIfNeeded(x, y, element);
       else if (element == EL_SP_ELECTRON)
 	DrawLevelElementAnimationIfNeeded(x, y, element);
+#endif
 
       if (DONT_TOUCH(element))
 	TestIfBadThingTouchesHero(x, y);
 
+#if 0
       PlaySoundLevelAction(x, y, ACTION_WAITING);
+#endif
 
       return;
     }
@@ -3511,7 +3799,7 @@ void ContinueMoving(int x, int y)
   int dy = (direction == MV_UP   ? -1 : direction == MV_DOWN  ? +1 : 0);
   int horiz_move = (dx != 0);
   int newx = x + dx, newy = y + dy;
-  int step = (horiz_move ? dx : dy) * TILEX / 8;
+  int step = (horiz_move ? dx : dy) * TILEX / MOVE_DELAY_NORMAL_SPEED;
 
   if (element == EL_AMOEBA_DROP || element == EL_AMOEBA_DROPPING)
     step /= 2;
@@ -3528,6 +3816,8 @@ void ContinueMoving(int x, int y)
     step /= 2;
   else if (element == EL_SPRING && horiz_move)
     step *= 2;
+  else if (IS_CUSTOM_ELEMENT(element))
+    step = SIGN(step) * element_info[element].move_stepsize;
 
 #if OLD_GAME_BEHAVIOUR
   else if (CAN_FALL(element) && horiz_move && !IS_SP_ELEMENT(element))
@@ -3540,6 +3830,7 @@ void ContinueMoving(int x, int y)
   {
     Feld[x][y] = EL_EMPTY;
     Feld[newx][newy] = element;
+    MovPos[x][y] = 0;	/* force "not moving" for "crumbled sand" */
 
     if (element == EL_MOLE)
     {
@@ -3619,6 +3910,9 @@ void ContinueMoving(int x, int y)
     MovPos[x][y] = MovDir[x][y] = MovDelay[x][y] = 0;
     MovDelay[newx][newy] = 0;
 
+    /* copy element change control values to new field */
+    ChangeDelay[newx][newy] = ChangeDelay[x][y];
+
     /* copy animation control values to new field */
     GfxFrame[newx][newy]  = GfxFrame[x][y];
     GfxAction[newx][newy] = GfxAction[x][y];	/* keep action one frame */
@@ -3657,9 +3951,15 @@ void ContinueMoving(int x, int y)
     else if (element == EL_PENGUIN)
       TestIfFriendTouchesBadThing(newx, newy);
 
+#if 1
+    if (CAN_FALL(element) && direction == MV_DOWN &&
+	(newy == lev_fieldy - 1 || !IS_FREE(x, newy + 1)))
+      Impact(x, newy);
+#else
     if (CAN_SMASH(element) && direction == MV_DOWN &&
-	(newy == lev_fieldy-1 || !IS_FREE(x, newy+1)))
+	(newy == lev_fieldy - 1 || !IS_FREE(x, newy + 1)))
       Impact(x, newy);
+#endif
   }
   else				/* still moving on */
   {
@@ -4157,7 +4457,7 @@ void Life(int ax, int ay)
 
 static void InitRobotWheel(int x, int y)
 {
-  MovDelay[x][y] = level.time_wheel * FRAMES_PER_SECOND;
+  ChangeDelay[x][y] = level.time_wheel * FRAMES_PER_SECOND;
 }
 
 static void RunRobotWheel(int x, int y)
@@ -4173,7 +4473,7 @@ static void StopRobotWheel(int x, int y)
 
 static void InitTimegateWheel(int x, int y)
 {
-  MovDelay[x][y] = level.time_wheel * FRAMES_PER_SECOND;
+  ChangeDelay[x][y] = level.time_wheel * FRAMES_PER_SECOND;
 }
 
 static void RunTimegateWheel(int x, int y)
@@ -4499,7 +4799,7 @@ static void InitBuggyBase(int x, int y)
   int element = Feld[x][y];
   int activating_delay = FRAMES_PER_SECOND / 4;
 
-  MovDelay[x][y] =
+  ChangeDelay[x][y] =
     (element == EL_SP_BUGGY_BASE ?
      2 * FRAMES_PER_SECOND + RND(5 * FRAMES_PER_SECOND) - activating_delay :
      element == EL_SP_BUGGY_BASE_ACTIVATING ?
@@ -4534,7 +4834,7 @@ static void WarnBuggyBase(int x, int y)
 
 static void InitTrap(int x, int y)
 {
-  MovDelay[x][y] = 2 * FRAMES_PER_SECOND + RND(5 * FRAMES_PER_SECOND);
+  ChangeDelay[x][y] = 2 * FRAMES_PER_SECOND + RND(5 * FRAMES_PER_SECOND);
 }
 
 static void ActivateTrap(int x, int y)
@@ -4551,23 +4851,66 @@ static void ChangeActiveTrap(int x, int y)
     DrawLevelFieldCrumbledSand(x, y);
 }
 
+static void ChangeElementDoIt(int x, int y, int element_new)
+{
+  CheckTriggeredElementChange(Feld[x][y], CE_OTHER_CHANGING);
+
+  RemoveField(x, y);
+  Feld[x][y] = element_new;
+
+  ResetGfxAnimation(x, y);
+  ResetRandomAnimationValue(x, y);
+
+  InitField(x, y, FALSE);
+  if (CAN_MOVE(Feld[x][y]))
+    InitMovDir(x, y);
+
+  DrawLevelField(x, y);
+
+  if (CAN_BE_CRUMBLED(Feld[x][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 void ChangeElement(int x, int y)
 {
   int element = Feld[x][y];
 
-  if (IS_MOVING(x, y))			/* never change a running system :-) */
-    return;
-
-  if (MovDelay[x][y] == 0)		/* initialize element change */
+  if (ChangeDelay[x][y] == 0)		/* initialize element change */
   {
-    MovDelay[x][y] = changing_element[element].change_delay + 1;
+    ChangeDelay[x][y] = changing_element[element].change_delay + 1;
 
     if (IS_CUSTOM_ELEMENT(element) && HAS_CHANGE_EVENT(element, CE_DELAY))
     {
       int max_random_delay = element_info[element].change.delay_random;
       int delay_frames = element_info[element].change.delay_frames;
 
-      MovDelay[x][y] += RND(max_random_delay * delay_frames);
+      ChangeDelay[x][y] += RND(max_random_delay * delay_frames);
     }
 
     ResetGfxAnimation(x, y);
@@ -4577,35 +4920,63 @@ static void ChangeElement(int x, int y)
       changing_element[element].pre_change_function(x, y);
   }
 
-  MovDelay[x][y]--;
+  ChangeDelay[x][y]--;
 
-  if (MovDelay[x][y] != 0)		/* continue element change */
+  if (ChangeDelay[x][y] != 0)		/* continue element change */
   {
-    if (IS_ANIMATED(el2img(element)))
-      DrawLevelElementAnimationIfNeeded(x, y, element);
+    int graphic = el_act_dir2img(element, GfxAction[x][y], MovDir[x][y]);
+
+    if (IS_ANIMATED(graphic))
+      DrawLevelGraphicAnimationIfNeeded(x, y, graphic);
 
     if (changing_element[element].change_function)
       changing_element[element].change_function(x, y);
   }
   else					/* finish element change */
   {
-    Feld[x][y] = changing_element[element].next_element;
+    int next_element = changing_element[element].next_element;
 
-    ResetGfxAnimation(x, y);
-    ResetRandomAnimationValue(x, y);
+    if (IS_MOVING(x, y))		/* never change a running system ;-) */
+    {
+      ChangeDelay[x][y] = 1;		/* try change after next move step */
 
-#if 1
-    InitField(x, y, FALSE);
-    if (CAN_MOVE(element))
-      InitMovDir(x, y);
-#endif
-    DrawLevelField(x, y);
+      return;
+    }
+
+    if (next_element != EL_UNDEFINED)
+      ChangeElementDoIt(x, y, next_element);
+    else
+      ChangeElementDoIt(x, y, element_info[element].change.successor);
 
     if (changing_element[element].post_change_function)
       changing_element[element].post_change_function(x, y);
   }
 }
 
+static void CheckTriggeredElementChange(int trigger_element, int trigger_event)
+{
+  int i, x, y;
+
+  if (!(trigger_events[trigger_element] & CH_EVENT_BIT(trigger_event)))
+    return;
+
+  for (i=0; i<MAX_NUM_ELEMENTS; i++)
+  {
+    if (!HAS_CHANGE_EVENT(i, trigger_event) ||
+	element_info[i].change.trigger != trigger_element)
+      continue;
+
+    for (y=0; y<lev_fieldy; y++) for (x=0; x<lev_fieldx; x++)
+    {
+      if (Feld[x][y] == i)
+      {
+	ChangeDelay[x][y] = 1;
+	ChangeElement(x, y);
+      }
+    }
+  }
+}
+
 static void PlayerActions(struct PlayerInfo *player, byte player_action)
 {
   static byte stored_player_action[MAX_PLAYERS];
@@ -4800,7 +5171,11 @@ void GameActions()
   for (y=0; y<lev_fieldy; y++) for (x=0; x<lev_fieldx; x++)
   {
     element = Feld[x][y];
+#if 1
+    graphic = el_act_dir2img(element, GfxAction[x][y], MovDir[x][y]);
+#else
     graphic = el2img(element);
+#endif
 
 #if 0
     if (element == -1)
@@ -4832,15 +5207,46 @@ void GameActions()
       continue;
     }
 
+#if 1
+    /* this may take place after moving, so 'element' may have changed */
+    if (IS_CHANGING(x, y))
+    {
+      ChangeElement(x, y);
+      element = Feld[x][y];
+      graphic = el_act_dir2img(element, GfxAction[x][y], MovDir[x][y]);
+    }
+#endif
+
     if (!IS_MOVING(x, y) && (CAN_FALL(element) || CAN_MOVE(element)))
     {
       StartMoving(x, y);
 
+#if 1
+      graphic = el_act_dir2img(element, GfxAction[x][y], MovDir[x][y]);
+#if 0
+      if (element == EL_PACMAN)
+	printf("::: %d, %d, %d\n",
+	       IS_ANIMATED(graphic), IS_MOVING(x, y), Stop[x][y]);
+#endif
+#if 0
+      if (element == EL_YAMYAM)
+	printf("::: %d, %d, %d\n",
+	       IS_ANIMATED(graphic), IS_MOVING(x, y), Stop[x][y]);
+#endif
+#endif
+
       if (IS_ANIMATED(graphic) &&
 	  !IS_MOVING(x, y) &&
 	  !Stop[x][y])
+      {
 	DrawLevelGraphicAnimationIfNeeded(x, y, graphic);
 
+#if 0
+	if (element == EL_YAMYAM)
+	  printf("::: %d, %d\n", graphic, GfxFrame[x][y]);
+#endif
+      }
+
       if (IS_GEM(element) || element == EL_SP_INFOTRON)
 	EdelsteinFunkeln(x, y);
     }
@@ -4893,11 +5299,11 @@ void GameActions()
 #endif
     else if (element == EL_EXPLOSION)
       ;	/* drawing of correct explosion animation is handled separately */
-    else if (IS_ANIMATED(graphic) && !IS_AUTO_CHANGING(element))
+    else if (IS_ANIMATED(graphic) && !IS_CHANGING(x, y))
       DrawLevelGraphicAnimationIfNeeded(x, y, graphic);
 
-#if 1
-    /* this may take place after moving, therefore element may have changed */
+#if 0
+    /* this may take place after moving, so 'element' may have changed */
     if (IS_AUTO_CHANGING(Feld[x][y]))
       ChangeElement(x, y);
 #endif
@@ -5273,7 +5679,7 @@ boolean MoveFigureOneStep(struct PlayerInfo *player,
   element = MovingOrBlocked2ElementIfNotLeaving(new_jx, new_jy);
 #endif
 
-  if (DONT_GO_TO(element))
+  if (DONT_RUN_INTO(element))
   {
     if (element == EL_ACID && dx == 0 && dy == 1)
     {
@@ -5611,11 +6017,11 @@ void TestIfGoodThingHitsBadThing(int good_x, int good_y, int good_move_dir)
     test_element = MovingOrBlocked2ElementIfNotLeaving(test_x, test_y);
 #endif
 
-    /* 1st case: good thing is moving towards DONT_GO_TO style bad thing;
+    /* 1st case: good thing is moving towards DONT_RUN_INTO style bad thing;
        2nd case: DONT_TOUCH style bad thing does not move away from good thing
     */
-    if ((DONT_GO_TO(test_element) && good_move_dir == test_dir[i]) ||
-	(DONT_TOUCH(test_element) && test_move_dir != test_dir[i]))
+    if ((DONT_RUN_INTO(test_element) && good_move_dir == test_dir[i]) ||
+	(DONT_TOUCH(test_element)    && test_move_dir != test_dir[i]))
     {
       kill_x = test_x;
       kill_y = test_y;
@@ -5675,11 +6081,11 @@ void TestIfBadThingHitsGoodThing(int bad_x, int bad_y, int bad_move_dir)
 
     test_element = Feld[test_x][test_y];
 
-    /* 1st case: good thing is moving towards DONT_GO_TO style bad thing;
+    /* 1st case: good thing is moving towards DONT_RUN_INTO style bad thing;
        2nd case: DONT_TOUCH style bad thing does not move away from good thing
     */
-    if ((DONT_GO_TO(bad_element) &&  bad_move_dir == test_dir[i]) ||
-	(DONT_TOUCH(bad_element) && test_move_dir != test_dir[i]))
+    if ((DONT_RUN_INTO(bad_element) &&  bad_move_dir == test_dir[i]) ||
+	(DONT_TOUCH(bad_element)    && test_move_dir != test_dir[i]))
     {
       /* good thing is player or penguin that does not move away */
       if (IS_PLAYER(test_x, test_y))
@@ -5831,7 +6237,11 @@ void BuryHero(struct PlayerInfo *player)
   if (!player->active)
     return;
 
+#if 1
+  PlaySoundLevelElementAction(jx, jy, player->element_nr, ACTION_DYING);
+#else
   PlaySoundLevel(jx, jy, SND_CLASS_PLAYER_DYING);
+#endif
   PlaySoundLevel(jx, jy, SND_GAME_LOSING);
 
   player->GameOver = TRUE;
@@ -5970,7 +6380,13 @@ int DigField(struct PlayerInfo *player,
 
   switch (element)
   {
+#if 0
     case EL_EMPTY:
+      PlaySoundLevelElementAction(x, y, player->element_nr, ACTION_MOVING);
+      break;
+#endif
+
+#if 0
     case EL_SAND:
     case EL_INVISIBLE_SAND:
     case EL_INVISIBLE_SAND_ACTIVE:
@@ -5979,15 +6395,16 @@ int DigField(struct PlayerInfo *player,
     case EL_SP_BUGGY_BASE:
     case EL_SP_BUGGY_BASE_ACTIVATING:
       RemoveField(x, y);
-#if 1
+
       if (mode != DF_SNAP && element != EL_EMPTY)
       {
 	GfxElement[x][y] = (CAN_BE_CRUMBLED(element) ? EL_SAND : element);
 	player->is_digging = TRUE;
       }
-#endif
+
       PlaySoundLevelElementAction(x, y, element, ACTION_DIGGING);
       break;
+#endif
 
     case EL_EMERALD:
     case EL_BD_DIAMOND:
@@ -5999,13 +6416,13 @@ int DigField(struct PlayerInfo *player,
     case EL_PEARL:
     case EL_CRYSTAL:
       RemoveField(x, y);
-#if 1
+
       if (mode != DF_SNAP)
       {
 	GfxElement[x][y] = element;
 	player->is_collecting = TRUE;
       }
-#endif
+
       local_player->gems_still_needed -= (element == EL_DIAMOND ? 3 :
 					  element == EL_PEARL ? 5 :
 					  element == EL_CRYSTAL ? 8 : 1);
@@ -6015,18 +6432,31 @@ int DigField(struct PlayerInfo *player,
       DrawText(DX_EMERALDS, DY_EMERALDS,
 	       int2str(local_player->gems_still_needed, 3), FONT_TEXT_2);
       PlaySoundLevelElementAction(x, y, element, ACTION_COLLECTING);
+      CheckTriggeredElementChange(element, CE_OTHER_COLLECTING);
       break;
 
     case EL_SPEED_PILL:
       RemoveField(x, y);
       player->move_delay_value = MOVE_DELAY_HIGH_SPEED;
+#if 1
+      PlaySoundLevelElementAction(x, y, element, ACTION_COLLECTING);
+#else
       PlaySoundLevel(x, y, SND_SPEED_PILL_COLLECTING);
+#endif
+      CheckTriggeredElementChange(element, CE_OTHER_COLLECTING);
       break;
 
+#if 0
     case EL_ENVELOPE:
       Feld[x][y] = EL_EMPTY;
+#if 1
+      PlaySoundLevelElementAction(x, y, element, ACTION_COLLECTING);
+#else
       PlaySoundLevel(x, y, SND_ENVELOPE_COLLECTING);
+#endif
+      CheckTriggeredElementChange(element, CE_OTHER_COLLECTING);
       break;
+#endif
 
     case EL_EXTRA_TIME:
       RemoveField(x, y);
@@ -6035,20 +6465,35 @@ int DigField(struct PlayerInfo *player,
 	TimeLeft += 10;
 	DrawText(DX_TIME, DY_TIME, int2str(TimeLeft, 3), FONT_TEXT_2);
       }
+#if 1
+      PlaySoundLevelElementAction(x, y, element, ACTION_COLLECTING);
+#else
       PlaySoundStereo(SND_EXTRA_TIME_COLLECTING, SOUND_MIDDLE);
+#endif
+      CheckTriggeredElementChange(element, CE_OTHER_COLLECTING);
       break;
 
     case EL_SHIELD_NORMAL:
       RemoveField(x, y);
       player->shield_normal_time_left += 10;
+#if 1
+      PlaySoundLevelElementAction(x, y, element, ACTION_COLLECTING);
+#else
       PlaySoundLevel(x, y, SND_SHIELD_NORMAL_COLLECTING);
+#endif
+      CheckTriggeredElementChange(element, CE_OTHER_COLLECTING);
       break;
 
     case EL_SHIELD_DEADLY:
       RemoveField(x, y);
       player->shield_normal_time_left += 10;
       player->shield_deadly_time_left += 10;
+#if 1
+      PlaySoundLevelElementAction(x, y, element, ACTION_COLLECTING);
+#else
       PlaySoundLevel(x, y, SND_SHIELD_DEADLY_COLLECTING);
+#endif
+      CheckTriggeredElementChange(element, CE_OTHER_COLLECTING);
       break;
 
     case EL_DYNAMITE:
@@ -6060,6 +6505,7 @@ int DigField(struct PlayerInfo *player,
       DrawText(DX_DYNAMITE, DY_DYNAMITE, int2str(local_player->dynamite, 3),
 	       FONT_TEXT_2);
       PlaySoundLevelElementAction(x, y, element, ACTION_COLLECTING);
+      CheckTriggeredElementChange(element, CE_OTHER_COLLECTING);
       break;
 
     case EL_DYNABOMB_INCREASE_NUMBER:
@@ -6067,21 +6513,36 @@ int DigField(struct PlayerInfo *player,
       player->dynabomb_count++;
       player->dynabombs_left++;
       RaiseScoreElement(EL_DYNAMITE);
+#if 1
+      PlaySoundLevelElementAction(x, y, element, ACTION_COLLECTING);
+#else
       PlaySoundLevel(x, y, SND_DYNABOMB_INCREASE_NUMBER_COLLECTING);
+#endif
+      CheckTriggeredElementChange(element, CE_OTHER_COLLECTING);
       break;
 
     case EL_DYNABOMB_INCREASE_SIZE:
       RemoveField(x, y);
       player->dynabomb_size++;
       RaiseScoreElement(EL_DYNAMITE);
+#if 1
+      PlaySoundLevelElementAction(x, y, element, ACTION_COLLECTING);
+#else
       PlaySoundLevel(x, y, SND_DYNABOMB_INCREASE_SIZE_COLLECTING);
+#endif
+      CheckTriggeredElementChange(element, CE_OTHER_COLLECTING);
       break;
 
     case EL_DYNABOMB_INCREASE_POWER:
       RemoveField(x, y);
       player->dynabomb_xl = TRUE;
       RaiseScoreElement(EL_DYNAMITE);
+#if 1
+      PlaySoundLevelElementAction(x, y, element, ACTION_COLLECTING);
+#else
       PlaySoundLevel(x, y, SND_DYNABOMB_INCREASE_POWER_COLLECTING);
+#endif
+      CheckTriggeredElementChange(element, CE_OTHER_COLLECTING);
       break;
 
     case EL_KEY_1:
@@ -6099,7 +6560,12 @@ int DigField(struct PlayerInfo *player,
 			 graphic);
       DrawMiniGraphicExt(window, DX_KEYS + key_nr * MINI_TILEX, DY_KEYS,
 			 graphic);
+#if 1
+      PlaySoundLevelElementAction(x, y, element, ACTION_COLLECTING);
+#else
       PlaySoundLevel(x, y, SND_CLASS_KEY_COLLECTING);
+#endif
+      CheckTriggeredElementChange(element, CE_OTHER_COLLECTING);
       break;
     }
 
@@ -6118,7 +6584,12 @@ int DigField(struct PlayerInfo *player,
 			 graphic);
       DrawMiniGraphicExt(window, DX_KEYS + key_nr * MINI_TILEX, DY_KEYS,
 			 graphic);
+#if 1
+      PlaySoundLevelElementAction(x, y, element, ACTION_COLLECTING);
+#else
       PlaySoundLevel(x, y, SND_CLASS_KEY_COLLECTING);
+#endif
+      CheckTriggeredElementChange(element, CE_OTHER_COLLECTING);
       break;
     }
 
@@ -6290,6 +6761,9 @@ int DigField(struct PlayerInfo *player,
 
       DrawLevelField(x + dx, y + dy);
       PlaySoundLevelElementAction(x, y, element, ACTION_PUSHING);
+
+      CheckTriggeredElementChange(element, CE_OTHER_PUSHING);
+
       break;
 
     case EL_GATE_1:
@@ -6476,8 +6950,10 @@ int DigField(struct PlayerInfo *player,
       return MF_ACTION;
       break;
 
+#if 0
     case EL_SOKOBAN_FIELD_EMPTY:
       break;
+#endif
 
     case EL_SOKOBAN_OBJECT:
     case EL_SOKOBAN_FIELD_FULL:
@@ -6575,6 +7051,8 @@ int DigField(struct PlayerInfo *player,
 	PlaySoundLevel(x, y, SND_GAME_SOKOBAN_SOLVING);
       }
 
+      CheckTriggeredElementChange(element, CE_OTHER_PUSHING);
+
       break;
 
     case EL_PENGUIN:
@@ -6586,19 +7064,20 @@ int DigField(struct PlayerInfo *player,
 
       if (IS_WALKABLE(element))
       {
+	PlaySoundLevelElementAction(x, y, player->element_nr, ACTION_MOVING);
 	break;
       }
       else if (IS_DIGGABLE(element))
       {
 	RemoveField(x, y);
-#if 1
+
 	if (mode != DF_SNAP)
 	{
 	  GfxElement[x][y] =
 	    (CAN_BE_CRUMBLED(element) ? EL_SAND : GFX_ELEMENT(element));
 	  player->is_digging = TRUE;
 	}
-#endif
+
 	PlaySoundLevelElementAction(x, y, element, ACTION_DIGGING);
 
 	break;
@@ -6606,15 +7085,17 @@ int DigField(struct PlayerInfo *player,
       else if (IS_COLLECTIBLE(element))
       {
 	RemoveField(x, y);
-#if 1
+
 	if (mode != DF_SNAP)
 	{
 	  GfxElement[x][y] = element;
 	  player->is_collecting = TRUE;
 	}
-#endif
+
 	PlaySoundLevelElementAction(x, y, element, ACTION_COLLECTING);
 
+	CheckTriggeredElementChange(element, CE_OTHER_COLLECTING);
+
 	break;
       }
       else if (IS_PUSHABLE(element))
@@ -6657,6 +7138,8 @@ int DigField(struct PlayerInfo *player,
 	DrawLevelField(x + dx, y + dy);
 	PlaySoundLevelElementAction(x, y, element, ACTION_PUSHING);
 
+	CheckTriggeredElementChange(element, CE_OTHER_PUSHING);
+
 	break;
       }