X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Fgame_mm%2Fmm_game.c;h=d6ba5374db4d5e50448ab0e7ead370bda84bb6c8;hb=869bcbe4049f6135c202740019f6c2f60bde0425;hp=c97a7d3b09f0583080681e20d6bf168b080d077d;hpb=48d02823f8ca69be773caa16820adcd6ff9aa675;p=rocksndiamonds.git

diff --git a/src/game_mm/mm_game.c b/src/game_mm/mm_game.c
index c97a7d3b..d6ba5374 100644
--- a/src/game_mm/mm_game.c
+++ b/src/game_mm/mm_game.c
@@ -25,9 +25,8 @@
 
 // values for Explode_MM()
 #define EX_PHASE_START		0
-#define EX_NORMAL		0
-#define EX_KETTLE		1
-#define EX_SHORT		2
+#define EX_TYPE_NONE		0
+#define EX_TYPE_NORMAL		(1 << 0)
 
 // special positions in the game control window (relative to control window)
 #define XX_LEVEL		36
@@ -111,13 +110,27 @@ static int hold_x = -1, hold_y = -1;
 static int pacman_nr = -1;
 
 // various game engine delay counters
-static unsigned int rotate_delay = 0;
-static unsigned int pacman_delay = 0;
-static unsigned int energy_delay = 0;
-static unsigned int overload_delay = 0;
+static DelayCounter rotate_delay = { AUTO_ROTATE_DELAY };
+static DelayCounter pacman_delay = { PACMAN_MOVE_DELAY };
+static DelayCounter energy_delay = { ENERGY_DELAY };
+static DelayCounter overload_delay = { 0 };
+
+// element mask positions for scanning pixels of MM elements
+#define MM_MASK_MCDUFFIN_RIGHT	0
+#define MM_MASK_MCDUFFIN_UP	1
+#define MM_MASK_MCDUFFIN_LEFT	2
+#define MM_MASK_MCDUFFIN_DOWN	3
+#define MM_MASK_GRID_1		4
+#define MM_MASK_GRID_2		5
+#define MM_MASK_GRID_3		6
+#define MM_MASK_GRID_4		7
+#define MM_MASK_RECTANGLE	8
+#define MM_MASK_CIRCLE		9
+
+#define NUM_MM_MASKS		10
 
 // element masks for scanning pixels of MM elements
-static const char mm_masks[10][16][16 + 1] =
+static const char mm_masks[NUM_MM_MASKS][16][16 + 1] =
 {
   {
     "                ",
@@ -411,6 +424,20 @@ static void CheckExitMM(void)
     PlayLevelSound_MM(exit_x, exit_y, exit_element, MM_ACTION_OPENING);
 }
 
+static void SetLaserColor(int brightness)
+{
+  int color_min = 0x00;
+  int color_max = brightness;		// (0x00 <= brightness <= 0xFF)
+  int color_up   = color_max * laser.overload_value / MAX_LASER_OVERLOAD;
+  int color_down = color_max - color_up;
+
+  pen_ray =
+    GetPixelFromRGB(window,
+		    (game_mm.laser_red   ? color_max  : color_up),
+		    (game_mm.laser_green ? color_down : color_min),
+		    (game_mm.laser_blue  ? color_down : color_min));
+}
+
 static void InitMovDir_MM(int x, int y)
 {
   int element = Tile[x][y];
@@ -436,7 +463,7 @@ static void InitMovDir_MM(int x, int y)
   }
 }
 
-static void InitField(int x, int y, boolean init_game)
+static void InitField(int x, int y)
 {
   int element = Tile[x][y];
 
@@ -511,6 +538,19 @@ static void InitField(int x, int y, boolean init_game)
 	laser.start_edge.x = x;
 	laser.start_edge.y = y;
 	laser.start_angle = get_element_angle(element);
+
+        if (IS_MCDUFFIN(element))
+        {
+          game_mm.laser_red   = native_mm_level.mm_laser_red;
+          game_mm.laser_green = native_mm_level.mm_laser_green;
+          game_mm.laser_blue  = native_mm_level.mm_laser_blue;
+        }
+        else
+        {
+          game_mm.laser_red   = native_mm_level.df_laser_red;
+          game_mm.laser_green = native_mm_level.df_laser_green;
+          game_mm.laser_blue  = native_mm_level.df_laser_blue;
+        }
       }
 
       break;
@@ -537,7 +577,6 @@ static void InitCycleElements_RotateSingleStep(void)
 
     Tile[x][y] = next_element;
 
-    DrawField_MM(x, y);
     game_mm.cycle[i].steps -= step;
   }
 }
@@ -574,10 +613,7 @@ static void InitLaser(void)
 
   AddLaserEdge(LX, LY);		// set laser starting edge
 
-  pen_ray = GetPixelFromRGB(window,
-			    native_mm_level.laser_red   * 0xFF,
-			    native_mm_level.laser_green * 0xFF,
-			    native_mm_level.laser_blue  * 0xFF);
+  SetLaserColor(0xFF);
 }
 
 void InitGameEngine_MM(void)
@@ -602,6 +638,11 @@ void InitGameEngine_MM(void)
     (native_mm_level.auto_count_kettles ? 0 : native_mm_level.kettles_needed);
   game_mm.lights_still_needed = 0;
   game_mm.num_keys = 0;
+  game_mm.ball_choice_pos = 0;
+
+  game_mm.laser_red = FALSE;
+  game_mm.laser_green = FALSE;
+  game_mm.laser_blue = TRUE;
 
   game_mm.level_solved = FALSE;
   game_mm.game_over = FALSE;
@@ -624,6 +665,9 @@ void InitGameEngine_MM(void)
   laser.fuse_x = laser.fuse_y = -1;
 
   laser.dest_element = EL_EMPTY;
+  laser.dest_element_last = EL_EMPTY;
+  laser.dest_element_last_x = -1;
+  laser.dest_element_last_y = -1;
   laser.wall_mask = 0;
 
   last_LX = 0;
@@ -637,10 +681,10 @@ void InitGameEngine_MM(void)
 
   CT = Ct = 0;
 
-  rotate_delay = 0;
-  pacman_delay = 0;
-  energy_delay = 0;
-  overload_delay = 0;
+  rotate_delay.count = 0;
+  pacman_delay.count = 0;
+  energy_delay.count = 0;
+  overload_delay.count = 0;
 
   ClickElement(-1, -1, -1);
 
@@ -653,10 +697,9 @@ void InitGameEngine_MM(void)
       Angle[x][y] = 0;
       MovPos[x][y] = MovDir[x][y] = MovDelay[x][y] = 0;
       Store[x][y] = Store2[x][y] = 0;
-      Frame[x][y] = 0;
       Stop[x][y] = FALSE;
 
-      InitField(x, y, TRUE);
+      InitField(x, y);
     }
   }
 
@@ -691,6 +734,11 @@ void InitGameActions_MM(void)
       cycle_steps_done++;
     }
 
+    AdvanceFrameCounter();
+    AdvanceGfxFrame();
+
+    DrawLevel_MM();
+
     BackToFront();
 
     ColorCycling();
@@ -708,6 +756,52 @@ void InitGameActions_MM(void)
 
   SetTileCursorXY(laser.start_edge.x, laser.start_edge.y);
   SetTileCursorActive(TRUE);
+
+  // restart all delay counters after initially cycling game elements
+  ResetFrameCounter(&rotate_delay);
+  ResetFrameCounter(&pacman_delay);
+  ResetFrameCounter(&energy_delay);
+  ResetFrameCounter(&overload_delay);
+}
+
+static void FadeOutLaser(void)
+{
+  int i;
+
+  for (i = 15; i >= 0; i--)
+  {
+    SetLaserColor(0x11 * i);
+
+    DrawLaser(0, DL_LASER_ENABLED);
+
+    BackToFront();
+    Delay_WithScreenUpdates(50);
+  }
+
+  DrawLaser(0, DL_LASER_DISABLED);
+
+  StopSound_MM(SND_MM_GAME_HEALTH_CHARGING);
+}
+
+static void GameOver_MM(int game_over_cause)
+{
+  // do not handle game over if request dialog is already active
+  if (game.request_active)
+    return;
+
+  game_mm.game_over = TRUE;
+  game_mm.game_over_cause = game_over_cause;
+
+  if (setup.ask_on_game_over)
+    game.restart_game_message = (game_over_cause == GAME_OVER_BOMB ?
+				 "Bomb killed Mc Duffin! Play it again?" :
+				 game_over_cause == GAME_OVER_NO_ENERGY ?
+				 "Out of magic energy! Play it again?" :
+				 game_over_cause == GAME_OVER_OVERLOADED ?
+				 "Magic spell hit Mc Duffin! Play it again?" :
+				 NULL);
+
+  SetTileCursorActive(FALSE);
 }
 
 void AddLaserEdge(int lx, int ly)
@@ -731,6 +825,13 @@ void AddLaserEdge(int lx, int ly)
 
 void AddDamagedField(int ex, int ey)
 {
+  // prevent adding the same field position again
+  if (laser.num_damages > 0 &&
+      laser.damage[laser.num_damages - 1].x == ex &&
+      laser.damage[laser.num_damages - 1].y == ey &&
+      laser.damage[laser.num_damages - 1].edge == laser.num_edges)
+    return;
+
   laser.damage[laser.num_damages].is_mirror = FALSE;
   laser.damage[laser.num_damages].angle = laser.current_angle;
   laser.damage[laser.num_damages].edge = laser.num_edges;
@@ -757,13 +858,13 @@ static boolean StepBehind(void)
 static int getMaskFromElement(int element)
 {
   if (IS_GRID(element))
-    return IMG_MM_MASK_GRID_1 + get_element_phase(element);
+    return MM_MASK_GRID_1 + get_element_phase(element);
   else if (IS_MCDUFFIN(element))
-    return IMG_MM_MASK_MCDUFFIN_RIGHT + get_element_phase(element);
+    return MM_MASK_MCDUFFIN_RIGHT + get_element_phase(element);
   else if (IS_RECTANGLE(element) || IS_DF_GRID(element))
-    return IMG_MM_MASK_RECTANGLE;
+    return MM_MASK_RECTANGLE;
   else
-    return IMG_MM_MASK_CIRCLE;
+    return MM_MASK_CIRCLE;
 }
 
 static int ScanPixel(void)
@@ -817,7 +918,7 @@ static int ScanPixel(void)
 	}
 	else
 	{
-	  int pos = getMaskFromElement(element) - IMG_MM_MASK_MCDUFFIN_RIGHT;
+	  int pos = getMaskFromElement(element);
 
 	  pixel = (mm_masks[pos][dy / 2][dx / 2] == 'X' ? 1 : 0);
 	}
@@ -843,15 +944,45 @@ static int ScanPixel(void)
   return hit_mask;
 }
 
+static void DeactivateLaserTargetElement(void)
+{
+  if (laser.dest_element_last == EL_BOMB_ACTIVE ||
+      laser.dest_element_last == EL_MINE_ACTIVE ||
+      laser.dest_element_last == EL_GRAY_BALL_OPENING)
+  {
+    int x = laser.dest_element_last_x;
+    int y = laser.dest_element_last_y;
+    int element = laser.dest_element_last;
+
+    if (Tile[x][y] == element)
+      Tile[x][y] = (element == EL_BOMB_ACTIVE ? EL_BOMB :
+		    element == EL_MINE_ACTIVE ? EL_MINE : EL_BALL_GRAY);
+
+    if (Tile[x][y] == EL_BALL_GRAY)
+      MovDelay[x][y] = 0;
+
+    laser.dest_element_last = EL_EMPTY;
+    laser.dest_element_last_x = -1;
+    laser.dest_element_last_y = -1;
+  }
+}
+
 void ScanLaser(void)
 {
-  int element;
+  int element = EL_EMPTY;
+  int last_element = EL_EMPTY;
   int end = 0, rf = laser.num_edges;
 
   // do not scan laser again after the game was lost for whatever reason
   if (game_mm.game_over)
     return;
 
+  // do not scan laser if fuse is off
+  if (laser.fuse_off)
+    return;
+
+  DeactivateLaserTargetElement();
+
   laser.overloaded = FALSE;
   laser.stops_inside_element = FALSE;
 
@@ -925,6 +1056,8 @@ void ScanLaser(void)
 	  hit_mask, LX, LY, ELX, ELY);
 #endif
 
+    last_element = element;
+
     element = Tile[ELX][ELY];
     laser.dest_element = element;
 
@@ -943,9 +1076,15 @@ void ScanLaser(void)
 	    ELX, ELY, element);
 #endif
 
+    // special case: leaving fixed MM steel grid (upwards) with non-90° angle
+    if (element == EL_EMPTY &&
+	IS_GRID_STEEL(last_element) &&
+	laser.current_angle % 4)		// angle is not 90°
+      element = last_element;
+
     if (element == EL_EMPTY)
     {
-      if (!HitOnlyAnEdge(element, hit_mask))
+      if (!HitOnlyAnEdge(hit_mask))
 	break;
     }
     else if (element == EL_FUSE_ON)
@@ -1001,6 +1140,14 @@ void ScanLaser(void)
     if (rf)
       DrawLaser(rf - 1, DL_LASER_ENABLED);
     rf = laser.num_edges;
+
+    if (!IS_DF_WALL_STEEL(element))
+    {
+      // only used for scanning DF steel walls; reset for all other elements
+      last_LX = 0;
+      last_LY = 0;
+      last_hit_mask = 0;
+    }
   }
 
 #if 0
@@ -1227,6 +1374,13 @@ static void DrawLaserExt(int start_edge, int num_edges, int mode)
 
 void DrawLaser(int start_edge, int mode)
 {
+  // do not draw laser if fuse is off
+  if (laser.fuse_off && mode == DL_LASER_ENABLED)
+    return;
+
+  if (mode == DL_LASER_DISABLED)
+    DeactivateLaserTargetElement();
+
   if (laser.num_edges - start_edge < 0)
   {
     Warn("DrawLaser: laser.num_edges - start_edge < 0");
@@ -1315,7 +1469,7 @@ void DrawLaser_MM(void)
 
 boolean HitElement(int element, int hit_mask)
 {
-  if (HitOnlyAnEdge(element, hit_mask))
+  if (HitOnlyAnEdge(hit_mask))
     return FALSE;
 
   if (IS_MOVING(ELX, ELY) || IS_BLOCKED(ELX, ELY))
@@ -1339,6 +1493,10 @@ boolean HitElement(int element, int hit_mask)
   // this is more precise: check if laser would go through the center
   if ((ELX * TILEX + 14 - LX) * YS != (ELY * TILEY + 14 - LY) * XS)
   {
+    // prevent cutting through laser emitter with laser beam
+    if (IS_LASER(element))
+      return TRUE;
+
     // skip the whole element before continuing the scan
     do
     {
@@ -1459,14 +1617,14 @@ boolean HitElement(int element, int hit_mask)
     LX += step_size * XS;
     LY += step_size * YS;
 
-#if 0
     // draw sparkles on mirror
-    if ((IS_MIRROR(element) || IS_MIRROR_FIXED(element)) &&
+    if ((IS_MIRROR(element) ||
+	 IS_MIRROR_FIXED(element) ||
+	 element == EL_PRISM) &&
 	current_angle != laser.current_angle)
     {
-      MoveSprite(vp, &Pfeil[2], 4 + 16 * ELX, 5 + 16 * ELY + 1);
+      MovDelay[ELX][ELY] = 11;		// start animation
     }
-#endif
 
     if ((!IS_POLAR(element) && !IS_POLAR_CROSS(element)) &&
 	current_angle != laser.current_angle)
@@ -1490,6 +1648,12 @@ boolean HitElement(int element, int hit_mask)
   {
     PlayLevelSound_MM(ELX, ELY, element, MM_ACTION_HITTING);
 
+    Tile[ELX][ELY] = (element == EL_BOMB ? EL_BOMB_ACTIVE : EL_MINE_ACTIVE);
+
+    laser.dest_element_last = Tile[ELX][ELY];
+    laser.dest_element_last_x = ELX;
+    laser.dest_element_last_y = ELY;
+
     if (element == EL_MINE)
       laser.overloaded = TRUE;
   }
@@ -1499,9 +1663,11 @@ boolean HitElement(int element, int hit_mask)
       element == EL_KEY ||
       element == EL_LIGHTBALL ||
       element == EL_PACMAN ||
-      IS_PACMAN(element))
+      IS_PACMAN(element) ||
+      IS_ENVELOPE(element))
   {
-    if (!IS_PACMAN(element))
+    if (!IS_PACMAN(element) &&
+	!IS_ENVELOPE(element))
       Bang_MM(ELX, ELY);
 
     if (element == EL_PACMAN)
@@ -1529,6 +1695,10 @@ boolean HitElement(int element, int hit_mask)
     {
       DeletePacMan(ELX, ELY);
     }
+    else if (IS_ENVELOPE(element))
+    {
+      Tile[ELX][ELY] = EL_ENVELOPE_1_OPENING + ENVELOPE_NR(Tile[ELX][ELY]);
+    }
 
     RaiseScoreElement_MM(element);
 
@@ -1638,7 +1808,7 @@ boolean HitElement(int element, int hit_mask)
   return TRUE;
 }
 
-boolean HitOnlyAnEdge(int element, int hit_mask)
+boolean HitOnlyAnEdge(int hit_mask)
 {
   // check if the laser hit only the edge of an element and, if so, go on
 
@@ -1697,7 +1867,7 @@ boolean HitOnlyAnEdge(int element, int hit_mask)
 
 boolean HitPolarizer(int element, int hit_mask)
 {
-  if (HitOnlyAnEdge(element, hit_mask))
+  if (HitOnlyAnEdge(hit_mask))
     return FALSE;
 
   if (IS_DF_GRID(element))
@@ -1895,7 +2065,7 @@ boolean HitBlock(int element, int hit_mask)
 
 boolean HitLaserSource(int element, int hit_mask)
 {
-  if (HitOnlyAnEdge(element, hit_mask))
+  if (HitOnlyAnEdge(hit_mask))
     return FALSE;
 
   PlayLevelSound_MM(ELX, ELY, element, MM_ACTION_HITTING);
@@ -1907,7 +2077,7 @@ boolean HitLaserSource(int element, int hit_mask)
 
 boolean HitLaserDestination(int element, int hit_mask)
 {
-  if (HitOnlyAnEdge(element, hit_mask))
+  if (HitOnlyAnEdge(hit_mask))
     return FALSE;
 
   if (element != EL_EXIT_OPEN &&
@@ -2143,7 +2313,7 @@ boolean HitReflectingWalls(int element, int hit_mask)
     }
   }
 
-  if (!HitOnlyAnEdge(element, hit_mask))
+  if (!HitOnlyAnEdge(hit_mask))
   {
     laser.overloaded = TRUE;
 
@@ -2155,7 +2325,7 @@ boolean HitReflectingWalls(int element, int hit_mask)
 
 boolean HitAbsorbingWalls(int element, int hit_mask)
 {
-  if (HitOnlyAnEdge(element, hit_mask))
+  if (HitOnlyAnEdge(hit_mask))
     return FALSE;
 
   if (ABS(XS) == 4 &&
@@ -2303,13 +2473,16 @@ static void OpenSurpriseBall(int x, int y)
       BlitBitmap(bitmap, drawto, gx + dx, gy + dy, 6, 6,
 		 cSX + x * TILEX + dx, cSY + y * TILEY + dy);
 
+      laser.redraw = TRUE;
+
       MarkTileDirty(x, y);
     }
 
     if (!MovDelay[x][y])
     {
       Tile[x][y] = Store[x][y];
-      Store[x][y] = 0;
+      Store[x][y] = Store2[x][y] = 0;
+
       DrawField_MM(x, y);
 
       ScanLaser();
@@ -2317,6 +2490,42 @@ static void OpenSurpriseBall(int x, int y)
   }
 }
 
+static void OpenEnvelope(int x, int y)
+{
+  int num_frames = 8;		// seven frames plus final empty space
+
+  if (!MovDelay[x][y])		// next animation frame
+    MovDelay[x][y] = num_frames;
+
+  if (MovDelay[x][y])		// wait some time before next frame
+  {
+    int nr = ENVELOPE_OPENING_NR(Tile[x][y]);
+
+    MovDelay[x][y]--;
+
+    if (MovDelay[x][y] > 0 && IN_SCR_FIELD(x, y))
+    {
+      int graphic = el_act2gfx(EL_ENVELOPE_1 + nr, MM_ACTION_COLLECTING);
+      int frame = num_frames - MovDelay[x][y] - 1;
+
+      DrawGraphicAnimation_MM(x, y, graphic, frame);
+
+      laser.redraw = TRUE;
+    }
+
+    if (MovDelay[x][y] == 0)
+    {
+      Tile[x][y] = EL_EMPTY;
+
+      DrawField_MM(x, y);
+
+      ScanLaser();
+
+      ShowEnvelope_MM(nr);
+    }
+  }
+}
+
 static void MeltIce(int x, int y)
 {
   int frames = 5;
@@ -2398,6 +2607,46 @@ static void GrowAmoeba(int x, int y)
   }
 }
 
+static void DrawFieldAnimated_MM(int x, int y)
+{
+  DrawField_MM(x, y);
+
+  laser.redraw = TRUE;
+}
+
+static void DrawFieldAnimatedIfNeeded_MM(int x, int y)
+{
+  int element = Tile[x][y];
+  int graphic = el2gfx(element);
+
+  if (!getGraphicInfo_NewFrame(x, y, graphic))
+    return;
+
+  DrawField_MM(x, y);
+
+  laser.redraw = TRUE;
+}
+
+static void DrawFieldTwinkle(int x, int y)
+{
+  if (MovDelay[x][y] != 0)	// wait some time before next frame
+  {
+    MovDelay[x][y]--;
+
+    DrawField_MM(x, y);
+
+    if (MovDelay[x][y] != 0)
+    {
+      int graphic = IMG_TWINKLE_WHITE;
+      int frame = getGraphicAnimationFrame(graphic, 10 - MovDelay[x][y]);
+
+      DrawGraphicThruMask_MM(SCREENX(x), SCREENY(y), graphic, frame);
+    }
+
+    laser.redraw = TRUE;
+  }
+}
+
 static void Explode_MM(int x, int y, int phase, int mode)
 {
   int num_phase = 9, delay = 2;
@@ -2419,20 +2668,26 @@ static void Explode_MM(int x, int y, int phase, int mode)
       Tile[x][y] = center_element;
     }
 
-    if (center_element == EL_BOMB || IS_MCDUFFIN(center_element))
-      Store[x][y] = center_element;
-    else
-      Store[x][y] = EL_EMPTY;
-
+    Store[x][y] = center_element;
     Store2[x][y] = mode;
+
     Tile[x][y] = EL_EXPLODING_OPAQUE;
+
+    GfxElement[x][y] = (center_element == EL_BOMB_ACTIVE ? EL_BOMB :
+			IS_MCDUFFIN(center_element) ? EL_MCDUFFIN :
+			center_element);
+
     MovDir[x][y] = MovPos[x][y] = MovDelay[x][y] = 0;
-    Frame[x][y] = 1;
+
+    ExplodePhase[x][y] = 1;
 
     return;
   }
 
-  Frame[x][y] = (phase < last_phase ? phase + 1 : 0);
+  if (phase == 1)
+    GfxFrame[x][y] = 0;		// restart explosion animation
+
+  ExplodePhase[x][y] = (phase < last_phase ? phase + 1 : 0);
 
   if (phase == half_phase)
   {
@@ -2444,75 +2699,36 @@ static void Explode_MM(int x, int y, int phase, int mode)
 
   if (phase == last_phase)
   {
-    if (Store[x][y] == EL_BOMB)
+    if (Store[x][y] == EL_BOMB_ACTIVE)
     {
       DrawLaser(0, DL_LASER_DISABLED);
       InitLaser();
 
       Bang_MM(laser.start_edge.x, laser.start_edge.y);
-      Store[x][y] = EL_EMPTY;
-
-      game_mm.game_over = TRUE;
-      game_mm.game_over_cause = GAME_OVER_BOMB;
 
-      SetTileCursorActive(FALSE);
+      GameOver_MM(GAME_OVER_DELAYED);
 
       laser.overloaded = FALSE;
     }
     else if (IS_MCDUFFIN(Store[x][y]))
     {
-      Store[x][y] = EL_EMPTY;
-
-      game.restart_game_message = "Bomb killed Mc Duffin! Play it again?";
+      GameOver_MM(GAME_OVER_BOMB);
     }
 
-    Tile[x][y] = Store[x][y];
+    Tile[x][y] = EL_EMPTY;
+
     Store[x][y] = Store2[x][y] = 0;
     MovDir[x][y] = MovPos[x][y] = MovDelay[x][y] = 0;
 
-    InitField(x, y, FALSE);
+    InitField(x, y);
     DrawField_MM(x, y);
   }
   else if (!(phase % delay) && IN_SCR_FIELD(SCREENX(x), SCREENY(y)))
   {
-    int graphic = IMG_MM_DEFAULT_EXPLODING;
-    int graphic_phase = (phase / delay - 1);
-    Bitmap *bitmap;
-    int src_x, src_y;
-
-    if (Store2[x][y] == EX_KETTLE)
-    {
-      if (graphic_phase < 3)
-      {
-	graphic = IMG_MM_KETTLE_EXPLODING;
-      }
-      else if (graphic_phase < 5)
-      {
-	graphic_phase += 3;
-      }
-      else
-      {
-	graphic = IMG_EMPTY;
-	graphic_phase = 0;
-      }
-    }
-    else if (Store2[x][y] == EX_SHORT)
-    {
-      if (graphic_phase < 4)
-      {
-	graphic_phase += 4;
-      }
-      else
-      {
-	graphic = IMG_EMPTY;
-	graphic_phase = 0;
-      }
-    }
-
-    getGraphicSource(graphic, graphic_phase, &bitmap, &src_x, &src_y);
+    int graphic = el_act2gfx(GfxElement[x][y], MM_ACTION_EXPLODING);
+    int frame = getGraphicAnimationFrameXY(graphic, x, y);
 
-    BlitBitmap(bitmap, drawto_field, src_x, src_y, TILEX, TILEY,
-	       cFX + x * TILEX, cFY + y * TILEY);
+    DrawGraphicAnimation_MM(x, y, graphic, frame);
 
     MarkTileDirty(x, y);
   }
@@ -2521,38 +2737,21 @@ static void Explode_MM(int x, int y, int phase, int mode)
 static void Bang_MM(int x, int y)
 {
   int element = Tile[x][y];
-  int mode = EX_NORMAL;
 
 #if 0
   DrawLaser(0, DL_LASER_ENABLED);
 #endif
 
-  switch (element)
-  {
-    case EL_KETTLE:
-      mode = EX_KETTLE;
-      break;
-
-    case EL_GATE_STONE:
-    case EL_GATE_WOOD:
-      mode = EX_SHORT;
-      break;
-
-    default:
-      mode = EX_NORMAL;
-      break;
-  }
-
   if (IS_PACMAN(element))
     PlayLevelSound_MM(x, y, element, MM_ACTION_EXPLODING);
-  else if (element == EL_BOMB || IS_MCDUFFIN(element))
+  else if (element == EL_BOMB_ACTIVE || IS_MCDUFFIN(element))
     PlayLevelSound_MM(x, y, element, MM_ACTION_EXPLODING);
   else if (element == EL_KEY)
     PlayLevelSound_MM(x, y, element, MM_ACTION_EXPLODING);
   else
     PlayLevelSound_MM(x, y, element, MM_ACTION_EXPLODING);
 
-  Explode_MM(x, y, EX_PHASE_START, mode);
+  Explode_MM(x, y, EX_PHASE_START, EX_TYPE_NORMAL);
 }
 
 void TurnRound(int x, int y)
@@ -2709,8 +2908,7 @@ static void ContinueMoving_MM(int x, int y)
 
 boolean ClickElement(int x, int y, int button)
 {
-  static unsigned int click_delay = 0;
-  static int click_delay_value = CLICK_DELAY;
+  static DelayCounter click_delay = { CLICK_DELAY };
   static boolean new_button = TRUE;
   boolean element_clicked = FALSE;
   int element;
@@ -2718,8 +2916,8 @@ boolean ClickElement(int x, int y, int button)
   if (button == -1)
   {
     // initialize static variables
-    click_delay = 0;
-    click_delay_value = CLICK_DELAY;
+    click_delay.count = 0;
+    click_delay.value = CLICK_DELAY;
     new_button = TRUE;
 
     return FALSE;
@@ -2732,7 +2930,7 @@ boolean ClickElement(int x, int y, int button)
   if (button == MB_RELEASED)
   {
     new_button = TRUE;
-    click_delay_value = CLICK_DELAY;
+    click_delay.value = CLICK_DELAY;
 
     // release eventually hold auto-rotating mirror
     RotateMirror(x, y, MB_RELEASED);
@@ -2740,7 +2938,7 @@ boolean ClickElement(int x, int y, int button)
     return FALSE;
   }
 
-  if (!FrameReached(&click_delay, click_delay_value) && !new_button)
+  if (!FrameReached(&click_delay) && !new_button)
     return FALSE;
 
   if (button == MB_MIDDLEBUTTON)	// middle button has no function
@@ -2826,8 +3024,14 @@ boolean ClickElement(int x, int y, int button)
 
     element_clicked = TRUE;
   }
+  else if (IS_ENVELOPE(element))
+  {
+    Tile[x][y] = EL_ENVELOPE_1_OPENING + ENVELOPE_NR(element);
 
-  click_delay_value = (new_button ? CLICK_DELAY_FIRST : CLICK_DELAY);
+    element_clicked = TRUE;
+  }
+
+  click_delay.value = (new_button ? CLICK_DELAY_FIRST : CLICK_DELAY);
   new_button = FALSE;
 
   return element_clicked;
@@ -2908,8 +3112,6 @@ void RotateMirror(int x, int y, int button)
 	 IS_POLAR(Tile[x][y]) ||
 	 IS_POLAR_CROSS(Tile[x][y])) && x == ELX && y == ELY)
     {
-      check = 0;
-
       if (IS_BEAMER(Tile[x][y]))
       {
 #if 0
@@ -2917,10 +3119,13 @@ void RotateMirror(int x, int y, int button)
 	      LX, LY, laser.beamer_edge, laser.beamer[1].num);
 #endif
 
-	laser.num_edges--;
+	if (check == 1)
+	  laser.num_edges--;
       }
 
       ScanLaser();
+
+      check = 0;
     }
 
     if (check == 2)
@@ -2932,7 +3137,7 @@ static void AutoRotateMirrors(void)
 {
   int x, y;
 
-  if (!FrameReached(&rotate_delay, AUTO_ROTATE_DELAY))
+  if (!FrameReached(&rotate_delay))
     return;
 
   for (x = 0; x < lev_fieldx; x++)
@@ -3057,7 +3262,7 @@ void ColorCycling(void)
   }
 }
 
-static void GameActions_MM_Ext(struct MouseActionInfo action, boolean warp_mode)
+static void GameActions_MM_Ext(void)
 {
   int element;
   int x, y, i;
@@ -3076,15 +3281,27 @@ static void GameActions_MM_Ext(struct MouseActionInfo action, boolean warp_mode)
     else if (IS_MOVING(x, y))
       ContinueMoving_MM(x, y);
     else if (IS_EXPLODING(element))
-      Explode_MM(x, y, Frame[x][y], EX_NORMAL);
+      Explode_MM(x, y, ExplodePhase[x][y], EX_TYPE_NORMAL);
     else if (element == EL_EXIT_OPENING)
       OpenExit(x, y);
     else if (element == EL_GRAY_BALL_OPENING)
       OpenSurpriseBall(x, y);
+    else if (IS_ENVELOPE_OPENING(element))
+      OpenEnvelope(x, y);
     else if (IS_WALL_CHANGING(element) && Store[x][y] == EL_WALL_ICE)
       MeltIce(x, y);
     else if (IS_WALL_CHANGING(element) && Store[x][y] == EL_WALL_AMOEBA)
       GrowAmoeba(x, y);
+    else if (IS_MIRROR(element) ||
+	     IS_MIRROR_FIXED(element) ||
+	     element == EL_PRISM)
+      DrawFieldTwinkle(x, y);
+    else if (element == EL_GRAY_BALL_OPENING ||
+	     element == EL_BOMB_ACTIVE ||
+	     element == EL_MINE_ACTIVE)
+      DrawFieldAnimated_MM(x, y);
+    else if (!IS_BLOCKED(x, y))
+      DrawFieldAnimatedIfNeeded_MM(x, y);
   }
 
   AutoRotateMirrors();
@@ -3100,7 +3317,7 @@ static void GameActions_MM_Ext(struct MouseActionInfo action, boolean warp_mode)
 
   CT = FrameCounter;
 
-  if (game_mm.num_pacman && FrameReached(&pacman_delay, PACMAN_MOVE_DELAY))
+  if (game_mm.num_pacman && FrameReached(&pacman_delay))
   {
     MovePacMen();
 
@@ -3111,48 +3328,25 @@ static void GameActions_MM_Ext(struct MouseActionInfo action, boolean warp_mode)
     }
   }
 
-  if (FrameReached(&energy_delay, ENERGY_DELAY))
-  {
-    if (game_mm.energy_left > 0)
-    {
-      game_mm.energy_left--;
-
-      redraw_mask |= REDRAW_DOOR_1;
-    }
-    else if (game.time_limit && !game_mm.game_over)
-    {
-      int i;
-
-      for (i = 15; i >= 0; i--)
-      {
-#if 0
-	SetRGB(pen_ray, 0x0000, 0x0000, i * color_scale);
-#endif
-	pen_ray = GetPixelFromRGB(window,
-				  native_mm_level.laser_red   * 0x11 * i,
-				  native_mm_level.laser_green * 0x11 * i,
-				  native_mm_level.laser_blue  * 0x11 * i);
-
-	DrawLaser(0, DL_LASER_ENABLED);
-	BackToFront();
-	Delay_WithScreenUpdates(50);
-      }
+  // skip all following game actions if game is over
+  if (game_mm.game_over)
+    return;
 
-      StopSound_MM(SND_MM_GAME_HEALTH_CHARGING);
-#if 0
-      FadeMusic();
-#endif
+  if (game_mm.energy_left == 0 && !game.no_level_time_limit && game.time_limit)
+  {
+    FadeOutLaser();
 
-      DrawLaser(0, DL_LASER_DISABLED);
-      game_mm.game_over = TRUE;
-      game_mm.game_over_cause = GAME_OVER_NO_ENERGY;
+    GameOver_MM(GAME_OVER_NO_ENERGY);
 
-      SetTileCursorActive(FALSE);
+    return;
+  }
 
-      game.restart_game_message = "Out of magic energy! Play it again?";
+  if (FrameReached(&energy_delay))
+  {
+    if (game_mm.energy_left > 0)
+      game_mm.energy_left--;
 
-      return;
-    }
+    // when out of energy, wait another frame to play "out of time" sound
   }
 
   element = laser.dest_element;
@@ -3167,7 +3361,9 @@ static void GameActions_MM_Ext(struct MouseActionInfo action, boolean warp_mode)
 
   if (!laser.overloaded && laser.overload_value == 0 &&
       element != EL_BOMB &&
+      element != EL_BOMB_ACTIVE &&
       element != EL_MINE &&
+      element != EL_MINE_ACTIVE &&
       element != EL_BALL_GRAY &&
       element != EL_BLOCK_STONE &&
       element != EL_BLOCK_WOOD &&
@@ -3177,9 +3373,11 @@ static void GameActions_MM_Ext(struct MouseActionInfo action, boolean warp_mode)
       !IS_WALL_AMOEBA(element))
     return;
 
+  overload_delay.value = HEALTH_DELAY(laser.overloaded);
+
   if (((laser.overloaded && laser.overload_value < MAX_LASER_OVERLOAD) ||
        (!laser.overloaded && laser.overload_value > 0)) &&
-      FrameReached(&overload_delay, HEALTH_DELAY(laser.overloaded)))
+      FrameReached(&overload_delay))
   {
     if (laser.overloaded)
       laser.overload_value++;
@@ -3196,18 +3394,7 @@ static void GameActions_MM_Ext(struct MouseActionInfo action, boolean warp_mode)
 
     if (laser.overload_value < MAX_LASER_OVERLOAD - 8)
     {
-      int color_up = 0xFF * laser.overload_value / MAX_LASER_OVERLOAD;
-      int color_down = 0xFF - color_up;
-
-#if 0
-      SetRGB(pen_ray, (laser.overload_value / 6) * color_scale, 0x0000,
-	     (15 - (laser.overload_value / 6)) * color_scale);
-#endif
-      pen_ray =
-	GetPixelFromRGB(window,
-			(native_mm_level.laser_red  ? 0xFF : color_up),
-			(native_mm_level.laser_green ? color_down : 0x00),
-			(native_mm_level.laser_blue  ? color_down : 0x00));
+      SetLaserColor(0xFF);
 
       DrawLaser(0, DL_LASER_ENABLED);
     }
@@ -3245,31 +3432,11 @@ static void GameActions_MM_Ext(struct MouseActionInfo action, boolean warp_mode)
 
     if (laser.overload_value == MAX_LASER_OVERLOAD)
     {
-      int i;
-
       UpdateAndDisplayGameControlValues();
 
-      for (i = 15; i >= 0; i--)
-      {
-#if 0
-	SetRGB(pen_ray, i * color_scale, 0x0000, 0x0000);
-#endif
+      FadeOutLaser();
 
-	pen_ray = GetPixelFromRGB(window, 0x11 * i, 0x00, 0x00);
-
-	DrawLaser(0, DL_LASER_ENABLED);
-	BackToFront();
-	Delay_WithScreenUpdates(50);
-      }
-
-      DrawLaser(0, DL_LASER_DISABLED);
-
-      game_mm.game_over = TRUE;
-      game_mm.game_over_cause = GAME_OVER_OVERLOADED;
-
-      SetTileCursorActive(FALSE);
-
-      game.restart_game_message = "Magic spell hit Mc Duffin! Play it again?";
+      GameOver_MM(GAME_OVER_OVERLOADED);
 
       return;
     }
@@ -3304,26 +3471,42 @@ static void GameActions_MM_Ext(struct MouseActionInfo action, boolean warp_mode)
 
   if (element == EL_BALL_GRAY && CT > native_mm_level.time_ball)
   {
-    static int new_elements[] =
+    if (!Store2[ELX][ELY])	// check if content element not yet determined
     {
-      EL_MIRROR_START,
-      EL_MIRROR_FIXED_START,
-      EL_POLAR_START,
-      EL_POLAR_CROSS_START,
-      EL_PACMAN_START,
-      EL_KETTLE,
-      EL_BOMB,
-      EL_PRISM
-    };
-    int num_new_elements = sizeof(new_elements) / sizeof(int);
-    int new_element = new_elements[RND(num_new_elements)];
-
-    Store[ELX][ELY] = new_element + RND(get_num_elements(new_element));
+      int last_anim_random_frame = gfx.anim_random_frame;
+      int element_pos;
+
+      if (native_mm_level.ball_choice_mode == ANIM_RANDOM)
+	gfx.anim_random_frame = RND(native_mm_level.num_ball_contents);
+
+      element_pos = getAnimationFrame(native_mm_level.num_ball_contents, 1,
+				      native_mm_level.ball_choice_mode, 0,
+				      game_mm.ball_choice_pos);
+
+      if (native_mm_level.ball_choice_mode == ANIM_RANDOM)
+	gfx.anim_random_frame = last_anim_random_frame;
+
+      game_mm.ball_choice_pos++;
+
+      int new_element = native_mm_level.ball_content[element_pos];
+
+      // randomly rotate newly created game element, if needed
+      if (native_mm_level.rotate_ball_content)
+	new_element = get_rotated_element(new_element, RND(16));
+
+      Store[ELX][ELY] = new_element;
+      Store2[ELX][ELY] = TRUE;
+    }
+
     Tile[ELX][ELY] = EL_GRAY_BALL_OPENING;
 
     // !!! CHECK AGAIN: Laser on Polarizer !!!
     ScanLaser();
 
+    laser.dest_element_last = Tile[ELX][ELY];
+    laser.dest_element_last_x = ELX;
+    laser.dest_element_last_y = ELY;
+
     return;
 
 #if 0
@@ -3644,24 +3827,27 @@ static void GameActions_MM_Ext(struct MouseActionInfo action, boolean warp_mode)
 
   if (element == EL_FUEL_FULL && CT > 10)
   {
-    for (i = game_mm.energy_left; i <= MAX_LASER_ENERGY; i+=2)
+    int num_init_game_frames = INIT_GAME_ACTIONS_DELAY;
+    int start = num_init_game_frames * game_mm.energy_left / native_mm_level.time;
+
+    for (i = start; i <= num_init_game_frames; i++)
     {
-#if 0
-      BlitBitmap(pix[PIX_DOOR], drawto,
-		 DOOR_GFX_PAGEX4 + XX_ENERGY,
-		 DOOR_GFX_PAGEY1 + YY_ENERGY + ENERGY_YSIZE - i,
-		 ENERGY_XSIZE, i, DX_ENERGY,
-		 DY_ENERGY + ENERGY_YSIZE - i);
-#endif
+      if (i == num_init_game_frames)
+	StopSound_MM(SND_MM_GAME_LEVELTIME_CHARGING);
+      else if (setup.sound_loops)
+	PlaySoundLoop_MM(SND_MM_GAME_LEVELTIME_CHARGING);
+      else
+	PlaySound_MM(SND_MM_GAME_LEVELTIME_CHARGING);
 
-      redraw_mask |= REDRAW_DOOR_1;
-      BackToFront();
+      game_mm.energy_left = native_mm_level.time * i / num_init_game_frames;
 
-      Delay_WithScreenUpdates(20);
+      UpdateAndDisplayGameControlValues();
+
+      BackToFront();
     }
 
-    game_mm.energy_left = MAX_LASER_ENERGY;
-    Tile[ELX][ELY] = EL_FUEL_EMPTY;
+    Tile[ELX][ELY] = laser.dest_element = EL_FUEL_EMPTY;
+
     DrawField_MM(ELX, ELY);
 
     DrawLaser(0, DL_LASER_ENABLED);
@@ -3672,12 +3858,12 @@ static void GameActions_MM_Ext(struct MouseActionInfo action, boolean warp_mode)
   return;
 }
 
-void GameActions_MM(struct MouseActionInfo action, boolean warp_mode)
+void GameActions_MM(struct MouseActionInfo action)
 {
   boolean element_clicked = ClickElement(action.lx, action.ly, action.button);
   boolean button_released = (action.button == MB_RELEASED);
 
-  GameActions_MM_Ext(action, warp_mode);
+  GameActions_MM_Ext();
 
   CheckSingleStepMode_MM(element_clicked, button_released);
 }
@@ -3961,7 +4147,7 @@ void RaiseScoreElement_MM(int element)
 // Mirror Magic game engine snapshot handling functions
 // ----------------------------------------------------------------------------
 
-void SaveEngineSnapshotValues_MM(ListNode **buffers)
+void SaveEngineSnapshotValues_MM(void)
 {
   int x, y;
 
@@ -3976,7 +4162,6 @@ void SaveEngineSnapshotValues_MM(ListNode **buffers)
       engine_snapshot_mm.Hit[x][y]   = Hit[x][y];
       engine_snapshot_mm.Box[x][y]   = Box[x][y];
       engine_snapshot_mm.Angle[x][y] = Angle[x][y];
-      engine_snapshot_mm.Frame[x][y] = Frame[x][y];
     }
   }
 
@@ -4019,7 +4204,6 @@ void LoadEngineSnapshotValues_MM(void)
       Hit[x][y]   = engine_snapshot_mm.Hit[x][y];
       Box[x][y]   = engine_snapshot_mm.Box[x][y];
       Angle[x][y] = engine_snapshot_mm.Angle[x][y];
-      Frame[x][y] = engine_snapshot_mm.Frame[x][y];
     }
   }