rnd-20070310-1-src
[rocksndiamonds.git] / src / editor.c
index 23b2dfdcd04c294edf4b352eda39df86ed67730b..009297ae66122de238e2126ce7312d66015739e3 100644 (file)
 
 /* values for elements with score for certain actions */
 #define MIN_SCORE                      0
-#define MAX_SCORE                      255
+#define MAX_SCORE                      999
 
 /* values for elements with count for collecting */
 #define MIN_COLLECT_COUNT              0
-#define MAX_COLLECT_COUNT              255
+#define MAX_COLLECT_COUNT              999
 
 /* values for random placement */
 #define RANDOM_USE_PERCENTAGE          0
@@ -1047,7 +1047,7 @@ static struct
   },
   {
     ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(9),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_LEVEL_TIMESCORE_DOWN,    GADGET_ID_LEVEL_TIMESCORE_UP,
     GADGET_ID_LEVEL_TIMESCORE_TEXT,    GADGET_ID_NONE,
     &level.score[SC_TIME_BONUS],
@@ -1173,7 +1173,7 @@ static struct
   },
   {
     ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(7),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_PUSH_DELAY_FIX_DOWN,     GADGET_ID_PUSH_DELAY_FIX_UP,
     GADGET_ID_PUSH_DELAY_FIX_TEXT,     GADGET_ID_NONE,
     &custom_element.push_delay_fixed,
@@ -1181,7 +1181,7 @@ static struct
   },
   {
     -1,                                        ED_ELEMENT_SETTINGS_YPOS(7),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_PUSH_DELAY_RND_DOWN,     GADGET_ID_PUSH_DELAY_RND_UP,
     GADGET_ID_PUSH_DELAY_RND_TEXT,     GADGET_ID_PUSH_DELAY_FIX_UP,
     &custom_element.push_delay_random,
@@ -1189,7 +1189,7 @@ static struct
   },
   {
     ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(8),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_DROP_DELAY_FIX_DOWN,     GADGET_ID_DROP_DELAY_FIX_UP,
     GADGET_ID_DROP_DELAY_FIX_TEXT,     GADGET_ID_NONE,
     &custom_element.drop_delay_fixed,
@@ -1197,7 +1197,7 @@ static struct
   },
   {
     -1,                                        ED_ELEMENT_SETTINGS_YPOS(8),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_DROP_DELAY_RND_DOWN,     GADGET_ID_DROP_DELAY_RND_UP,
     GADGET_ID_DROP_DELAY_RND_TEXT,     GADGET_ID_DROP_DELAY_FIX_UP,
     &custom_element.drop_delay_random,
@@ -1224,7 +1224,7 @@ static struct
   },
   {
     ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(12),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_EXPLOSION_DELAY_DOWN,    GADGET_ID_EXPLOSION_DELAY_UP,
     GADGET_ID_EXPLOSION_DELAY_TEXT,    GADGET_ID_NONE,
     &custom_element.explosion_delay,
@@ -1232,7 +1232,7 @@ static struct
   },
   {
     ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(13),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_IGNITION_DELAY_DOWN,     GADGET_ID_IGNITION_DELAY_UP,
     GADGET_ID_IGNITION_DELAY_TEXT,     GADGET_ID_NONE,
     &custom_element.ignition_delay,
@@ -8522,6 +8522,82 @@ static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
   return (element_new != EL_EMPTY ? element_new : element_old);
 }
 
+static int getOpenDirectionFromSteel2(int element)
+{
+  switch (element)
+  {
+    case EL_DC_STEELWALL_2_LEFT:       return (MV_RIGHT);
+    case EL_DC_STEELWALL_2_RIGHT:      return (MV_LEFT);
+    case EL_DC_STEELWALL_2_TOP:                return (MV_DOWN);
+    case EL_DC_STEELWALL_2_BOTTOM:     return (MV_UP);
+    case EL_DC_STEELWALL_2_HORIZONTAL: return (MV_HORIZONTAL);
+    case EL_DC_STEELWALL_2_VERTICAL:   return (MV_VERTICAL);
+    case EL_DC_STEELWALL_2_MIDDLE:     return (MV_ANY_DIRECTION);
+    case EL_DC_STEELWALL_2_SINGLE:     return (MV_NONE);
+  }
+
+  return MV_NONE;
+}
+
+static int getSteel2FromOpenDirection(int direction)
+{
+  switch (direction)
+  {
+    case (MV_RIGHT):                   return EL_DC_STEELWALL_2_LEFT;
+    case (MV_LEFT):                    return EL_DC_STEELWALL_2_RIGHT;
+    case (MV_DOWN):                    return EL_DC_STEELWALL_2_TOP;
+    case (MV_UP):                      return EL_DC_STEELWALL_2_BOTTOM;
+    case (MV_HORIZONTAL):              return EL_DC_STEELWALL_2_HORIZONTAL;
+    case (MV_VERTICAL):                        return EL_DC_STEELWALL_2_VERTICAL;
+    case (MV_ANY_DIRECTION):           return EL_DC_STEELWALL_2_MIDDLE;
+    case (MV_NONE):                    return EL_DC_STEELWALL_2_SINGLE;
+  }
+
+  return EL_EMPTY;
+}
+
+static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
+{
+  int element_new = getSteel2FromOpenDirection(direction);
+
+  return (element_new != EL_EMPTY ? element_new : element_old);
+}
+
+static int getOpenDirectionFromChip(int element)
+{
+  switch (element)
+  {
+    case EL_SP_CHIP_SINGLE:            return (MV_NONE);
+    case EL_SP_CHIP_LEFT:              return (MV_RIGHT);
+    case EL_SP_CHIP_RIGHT:             return (MV_LEFT);
+    case EL_SP_CHIP_TOP:               return (MV_DOWN);
+    case EL_SP_CHIP_BOTTOM:            return (MV_UP);
+  }
+
+  return MV_NONE;
+}
+
+static int getChipFromOpenDirection(int direction)
+{
+  switch (direction)
+  {
+    case (MV_NONE):                    return EL_SP_CHIP_SINGLE;
+    case (MV_LEFT):                    return EL_SP_CHIP_RIGHT;
+    case (MV_RIGHT):                   return EL_SP_CHIP_LEFT;
+    case (MV_UP):                      return EL_SP_CHIP_BOTTOM;
+    case (MV_DOWN):                    return EL_SP_CHIP_TOP;
+  }
+
+  return EL_EMPTY;
+}
+
+static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
+{
+  int element_new = getChipFromOpenDirection(direction);
+
+  return (element_new != EL_EMPTY ? element_new : element_old);
+}
+
 static int getClosedTube(int x, int y)
 {
   static int xy[4][2] =
@@ -8532,8 +8608,8 @@ static int getClosedTube(int x, int y)
     { 0, +1 }
   };
   int element_old = IntelliDrawBuffer[x][y];
-  int tube_direction_old = getOpenDirectionFromTube(element_old);
-  int tube_direction_new = MV_NONE;
+  int direction_old = getOpenDirectionFromTube(element_old);
+  int direction_new = MV_NONE;
   int i;
 
   for (i = 0; i < NUM_DIRECTIONS; i++)
@@ -8544,12 +8620,12 @@ static int getClosedTube(int x, int y)
     int dir_opposite = MV_DIR_OPPOSITE(dir);
 
     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
-       (tube_direction_old & dir) &&
+       (direction_old & dir) &&
        (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
-      tube_direction_new |= dir;
+      direction_new |= dir;
   }
 
-  return getTubeFromOpenDirectionNotEmpty(tube_direction_new, element_old);
+  return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
 }
 
 static int getClosedBelt(int x, int y)
@@ -8562,9 +8638,9 @@ static int getClosedBelt(int x, int y)
     { 0, +1 }
   };
   int element_old = IntelliDrawBuffer[x][y];
-  int belt_nr = getBeltNrFromBeltElement(element_old);
-  int belt_direction_old = getOpenDirectionFromBelt(element_old);
-  int belt_direction_new = MV_NONE;
+  int nr = getBeltNrFromBeltElement(element_old);
+  int direction_old = getOpenDirectionFromBelt(element_old);
+  int direction_new = MV_NONE;
   int i;
 
   for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
@@ -8575,12 +8651,12 @@ static int getClosedBelt(int x, int y)
     int dir_opposite = MV_DIR_OPPOSITE(dir);
 
     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
-       (belt_direction_old & dir) &&
+       (direction_old & dir) &&
        (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
-      belt_direction_new |= dir;
+      direction_new |= dir;
   }
 
-  return getBeltFromNrAndOpenDirection(belt_nr, belt_direction_new);
+  return getBeltFromNrAndOpenDirection(nr, direction_new);
 }
 
 static int getClosedPool(int x, int y)
@@ -8593,8 +8669,8 @@ static int getClosedPool(int x, int y)
     { 0, +1 }
   };
   int element_old = IntelliDrawBuffer[x][y];
-  int pool_direction_old = getOpenDirectionFromPool(element_old);
-  int pool_direction_new = MV_NONE;
+  int direction_old = getOpenDirectionFromPool(element_old);
+  int direction_new = MV_NONE;
   int i;
 
   for (i = 0; i < NUM_DIRECTIONS; i++)
@@ -8606,12 +8682,12 @@ static int getClosedPool(int x, int y)
 
     if (IN_LEV_FIELD(xx, yy) &&
        IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
-       (pool_direction_old & dir) &&
+       (direction_old & dir) &&
        (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
-      pool_direction_new |= dir;
+      direction_new |= dir;
   }
 
-  return getPoolFromOpenDirectionNotEmpty(pool_direction_new, element_old);
+  return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
 }
 
 static int getClosedPillar(int x, int y)
@@ -8624,8 +8700,8 @@ static int getClosedPillar(int x, int y)
     { 0, +1 }
   };
   int element_old = IntelliDrawBuffer[x][y];
-  int pillar_direction_old = getOpenDirectionFromPillar(element_old);
-  int pillar_direction_new = MV_NONE;
+  int direction_old = getOpenDirectionFromPillar(element_old);
+  int direction_new = MV_NONE;
   int i;
 
   for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
@@ -8636,12 +8712,72 @@ static int getClosedPillar(int x, int y)
     int dir_opposite = MV_DIR_OPPOSITE(dir);
 
     if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
-       (pillar_direction_old & dir) &&
+       (direction_old & dir) &&
        (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
-      pillar_direction_new |= dir;
+      direction_new |= dir;
   }
 
-  return getPillarFromOpenDirectionNotEmpty(pillar_direction_new, element_old);
+  return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
+}
+
+static int getClosedSteel2(int x, int y)
+{
+  static int xy[4][2] =
+  {
+    { -1, 0 },
+    { +1, 0 },
+    { 0, -1 },
+    { 0, +1 }
+  };
+  int element_old = IntelliDrawBuffer[x][y];
+  int direction_old = getOpenDirectionFromSteel2(element_old);
+  int direction_new = MV_NONE;
+  int i;
+
+  for (i = 0; i < NUM_DIRECTIONS; i++)
+  {
+    int xx = x + xy[i][0];
+    int yy = y + xy[i][1];
+    int dir = MV_DIR_FROM_BIT(i);
+    int dir_opposite = MV_DIR_OPPOSITE(dir);
+
+    if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
+       (direction_old & dir) &&
+       (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
+      direction_new |= dir;
+  }
+
+  return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
+}
+
+static int getClosedChip(int x, int y)
+{
+  static int xy[4][2] =
+  {
+    { -1, 0 },
+    { +1, 0 },
+    { 0, -1 },
+    { 0, +1 }
+  };
+  int element_old = IntelliDrawBuffer[x][y];
+  int direction_old = getOpenDirectionFromChip(element_old);
+  int direction_new = MV_NONE;
+  int i;
+
+  for (i = 0; i < NUM_DIRECTIONS; i++)
+  {
+    int xx = x + xy[i][0];
+    int yy = y + xy[i][1];
+    int dir = MV_DIR_FROM_BIT(i);
+    int dir_opposite = MV_DIR_OPPOSITE(dir);
+
+    if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
+       (direction_old & dir) &&
+       (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
+      direction_new |= dir;
+  }
+
+  return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
 }
 
 static void SetElementSimple(int x, int y, int element, boolean change_level)
@@ -8677,7 +8813,7 @@ static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
 }
 
 static void SetElementIntelliDraw(int x, int y, int new_element,
-                                 boolean change_level)
+                                 boolean change_level, int button)
 {
   static int xy[4][2] =
   {
@@ -8704,7 +8840,7 @@ static void SetElementIntelliDraw(int x, int y, int new_element,
     int direction = MV_NONE;
     int i;
 
-    /* if existing element is tube, keep all existing tube directions */
+    /* if old element is of same kind, keep all existing directions */
     if (IS_TUBE(old_element))
       direction |= getOpenDirectionFromTube(old_element);
 
@@ -8742,7 +8878,7 @@ static void SetElementIntelliDraw(int x, int y, int new_element,
     int direction = MV_NONE;
     int i;
 
-    /* if existing element is belt, keep all existing belt directions */
+    /* if old element is of same kind, keep all existing directions */
     if (IS_BELT(old_element))
       direction |= getOpenDirectionFromBelt(old_element);
 
@@ -8780,7 +8916,7 @@ static void SetElementIntelliDraw(int x, int y, int new_element,
     int direction = MV_NONE;
     int i;
 
-    /* if existing element is pool, keep all existing pool directions */
+    /* if old element is of same kind, keep all existing directions */
     if (IS_ACID_POOL_OR_ACID(old_element))
       direction |= getOpenDirectionFromPool(old_element);
 
@@ -8804,42 +8940,13 @@ static void SetElementIntelliDraw(int x, int y, int new_element,
       }
     }
 
-#if 1
-    int foo = last_element_new;
-
-    if (foo == EL_EMPTY)
-      foo = EL_ACID;
-
-    if (last_element_new == EL_EMPTY)
-      last_element_new = old_element;
-
-    if (last_element_new != EL_UNDEFINED)
-      new_element = getPoolFromOpenDirectionNotEmpty(direction,
-                                                    foo);
-    else
-      new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
-
-#else
-
-#if 0
+    /* special corrections needed for intuitively correct acid pool drawing */
     if (last_element_new == EL_EMPTY)
       last_element_new = new_element;
-#else
-    if (last_element_new == EL_EMPTY)
-      last_element_new = EL_ACID;
-#endif
+    else if (last_element_new != EL_UNDEFINED)
+      new_element = last_element_new;
 
-#if 1
-    if (last_element_new != EL_UNDEFINED)
-      new_element = getPoolFromOpenDirectionNotEmpty(direction,
-                                                    last_element_new);
-    else
-      new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
-#else
     new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
-#endif
-
-#endif
 
     if (last_element_new != EL_UNDEFINED)
       MergeAndCloseNeighbourElements(x, y, &new_element,
@@ -8852,7 +8959,7 @@ static void SetElementIntelliDraw(int x, int y, int new_element,
     int direction = MV_NONE;
     int i;
 
-    /* if existing element is pillar, keep all existing pillar directions */
+    /* if old element is of same kind, keep all existing directions */
     if (IS_EMC_PILLAR(old_element))
       direction |= getOpenDirectionFromPillar(old_element);
 
@@ -8883,6 +8990,127 @@ static void SetElementIntelliDraw(int x, int y, int new_element,
                                     last_x, last_y, &last_element_new,
                                     getClosedPillar, change_level);
   }
+  else if (IS_DC_STEELWALL_2(new_element))
+  {
+    int last_element_new = EL_UNDEFINED;
+    int direction = MV_NONE;
+    int i;
+
+    /* if old element is of same kind, keep all existing directions */
+    if (IS_DC_STEELWALL_2(old_element))
+      direction |= getOpenDirectionFromSteel2(old_element);
+
+    for (i = 0; i < NUM_DIRECTIONS; i++)
+    {
+      int xx = x + xy[i][0];
+      int yy = y + xy[i][1];
+
+      if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
+         IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
+      {
+       int dir = MV_DIR_FROM_BIT(i);
+       int dir_opposite = MV_DIR_OPPOSITE(dir);
+       int last_element_old = IntelliDrawBuffer[last_x][last_y];
+       int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
+       int last_direction_new = last_direction_old | dir_opposite;
+
+       last_element_new = getSteel2FromOpenDirection(last_direction_new);
+
+       direction |= dir;
+      }
+    }
+
+    new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
+
+    if (last_element_new != EL_UNDEFINED)
+      MergeAndCloseNeighbourElements(x, y, &new_element,
+                                    last_x, last_y, &last_element_new,
+                                    getClosedSteel2, change_level);
+  }
+  else if (IS_SP_CHIP(new_element))
+  {
+    int last_element_new = EL_UNDEFINED;
+    int direction = MV_NONE;
+    int i;
+
+    /* (do not keep existing directions, regardless of kind of old element) */
+
+    for (i = 0; i < NUM_DIRECTIONS; i++)
+    {
+      int xx = x + xy[i][0];
+      int yy = y + xy[i][1];
+
+      if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
+         IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
+      {
+       int dir = MV_DIR_FROM_BIT(i);
+       int dir_opposite = MV_DIR_OPPOSITE(dir);
+       int last_element_old = IntelliDrawBuffer[last_x][last_y];
+       int last_direction_old = getOpenDirectionFromChip(last_element_old);
+       int last_direction_new = last_direction_old | dir_opposite;
+
+       if (last_direction_old == MV_NONE)
+       {
+         last_element_new = getChipFromOpenDirection(last_direction_new);
+         direction |= dir;
+       }
+       else if (last_direction_old & (dir | dir_opposite))
+       {
+         direction |= MV_DIR_OPPOSITE(last_direction_old);
+       }
+       else
+       {
+         direction |= MV_DIR_OPPOSITE(dir);
+       }
+      }
+    }
+
+    new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
+
+    if (last_element_new != EL_UNDEFINED)
+      MergeAndCloseNeighbourElements(x, y, &new_element,
+                                    last_x, last_y, &last_element_new,
+                                    getClosedChip, change_level);
+  }
+  else if (IS_SP_HARDWARE_BASE(new_element))
+  {
+    int nr = GetSimpleRandom(6);
+
+    new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
+                  nr == 1 ? EL_SP_HARDWARE_BASE_2 :
+                  nr == 2 ? EL_SP_HARDWARE_BASE_3 :
+                  nr == 3 ? EL_SP_HARDWARE_BASE_4 :
+                  nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
+  }
+  else if (new_element == EL_SP_HARDWARE_GREEN ||
+          new_element == EL_SP_HARDWARE_BLUE ||
+          new_element == EL_SP_HARDWARE_RED)
+  {
+    int nr = GetSimpleRandom(3);
+
+    new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
+                  nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
+  }
+  else if (IS_GROUP_ELEMENT(new_element))
+  {
+    boolean connected_drawing = FALSE;
+    int i;
+
+    for (i = 0; i < NUM_DIRECTIONS; i++)
+    {
+      int xx = x + xy[i][0];
+      int yy = y + xy[i][1];
+
+      if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
+         IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
+       connected_drawing = TRUE;
+    }
+
+    if (!connected_drawing)
+      ResolveGroupElement(new_element);
+
+    new_element = GetElementFromGroupElement(new_element);
+  }
   else if (IS_BELT_SWITCH(old_element))
   {
     int belt_nr = getBeltNrFromBeltSwitchElement(old_element);
@@ -8940,7 +9168,107 @@ static void SetElementIntelliDraw(int x, int y, int new_element,
 
       { -1,                            -1                              },
     };
-    int i;
+    static int rotatable_elements[][4] =
+    {
+      {
+       EL_BUG_UP,
+       EL_BUG_RIGHT,
+       EL_BUG_DOWN,
+       EL_BUG_LEFT
+      },
+
+      {
+       EL_SPACESHIP_UP,
+       EL_SPACESHIP_RIGHT,
+       EL_SPACESHIP_DOWN,
+       EL_SPACESHIP_LEFT
+      },
+
+      {
+       EL_BD_BUTTERFLY_UP,
+       EL_BD_BUTTERFLY_RIGHT,
+       EL_BD_BUTTERFLY_DOWN,
+       EL_BD_BUTTERFLY_LEFT
+      },
+
+      {
+       EL_BD_FIREFLY_UP,
+       EL_BD_FIREFLY_RIGHT,
+       EL_BD_FIREFLY_DOWN,
+       EL_BD_FIREFLY_LEFT
+      },
+
+      {
+       EL_PACMAN_UP,
+       EL_PACMAN_RIGHT,
+       EL_PACMAN_DOWN,
+       EL_PACMAN_LEFT
+      },
+
+      {
+       EL_YAMYAM_UP,
+       EL_YAMYAM_RIGHT,
+       EL_YAMYAM_DOWN,
+       EL_YAMYAM_LEFT
+      },
+
+      {
+       EL_ARROW_UP,
+       EL_ARROW_RIGHT,
+       EL_ARROW_DOWN,
+       EL_ARROW_LEFT
+      },
+
+      {
+       EL_SP_PORT_UP,
+       EL_SP_PORT_RIGHT,
+       EL_SP_PORT_DOWN,
+       EL_SP_PORT_LEFT
+      },
+
+      {
+       EL_SP_GRAVITY_PORT_UP,
+       EL_SP_GRAVITY_PORT_RIGHT,
+       EL_SP_GRAVITY_PORT_DOWN,
+       EL_SP_GRAVITY_PORT_LEFT
+      },
+
+      {
+       EL_MOLE_UP,
+       EL_MOLE_RIGHT,
+       EL_MOLE_DOWN,
+       EL_MOLE_LEFT
+      },
+
+      {
+       EL_BALLOON_SWITCH_UP,
+       EL_BALLOON_SWITCH_RIGHT,
+       EL_BALLOON_SWITCH_DOWN,
+       EL_BALLOON_SWITCH_LEFT
+      },
+
+      {
+       EL_SP_GRAVITY_ON_PORT_UP,
+       EL_SP_GRAVITY_ON_PORT_RIGHT,
+       EL_SP_GRAVITY_ON_PORT_DOWN,
+       EL_SP_GRAVITY_ON_PORT_LEFT
+      },
+
+      {
+       EL_SP_GRAVITY_OFF_PORT_UP,
+       EL_SP_GRAVITY_OFF_PORT_RIGHT,
+       EL_SP_GRAVITY_OFF_PORT_DOWN,
+       EL_SP_GRAVITY_OFF_PORT_LEFT
+      },
+
+      {
+       -1,
+       -1,
+       -1,
+       -1,
+      },
+    };
+    int i, j;
 
     for (i = 0; swappable_elements[i][0] != -1; i++)
     {
@@ -8950,6 +9278,20 @@ static void SetElementIntelliDraw(int x, int y, int new_element,
       if (old_element == element1 || old_element == element2)
        new_element = (old_element == element1 ? element2 : element1);
     }
+
+    for (i = 0; rotatable_elements[i][0] != -1; i++)
+    {
+      for (j = 0; j < 4; j++)
+      {
+       int element = rotatable_elements[i][j];
+
+       if (old_element == element)
+         new_element = (button == 1 ? rotatable_elements[i][(j + 3) % 4] :
+                        button == 2 ? rotatable_elements[i][0]           :
+                        button == 3 ? rotatable_elements[i][(j + 1) % 4] :
+                        old_element);
+      }
+    }
   }
 
   SetElementSimple(x, y, new_element, change_level);
@@ -8966,22 +9308,28 @@ static void ResetIntelliDraw()
     for (y = 0; y < lev_fieldy; y++)
       IntelliDrawBuffer[x][y] = Feld[x][y];
 
-  SetElementIntelliDraw(-1, -1, EL_UNDEFINED, FALSE);
+  SetElementIntelliDraw(-1, -1, EL_UNDEFINED, FALSE, -1);
 }
 
-static void SetElementExt(int x, int y, int element, boolean change_level)
+static void SetElementExt(int x, int y, int element, boolean change_level,
+                         int button)
 {
   if (element < 0)
     SetElementSimple(x, y, Feld[x][y], change_level);
   else if (GetKeyModState() & KMOD_Shift)
-    SetElementIntelliDraw(x, y, element, change_level);
+    SetElementIntelliDraw(x, y, element, change_level, button);
   else
     SetElementSimple(x, y, element, change_level);
 }
 
 static void SetElement(int x, int y, int element)
 {
-  SetElementExt(x, y, element, TRUE);
+  SetElementExt(x, y, element, TRUE, -1);
+}
+
+static void SetElementButton(int x, int y, int element, int button)
+{
+  SetElementExt(x, y, element, TRUE, button);
 }
 
 static void DrawLineElement(int sx, int sy, int element, boolean change_level)
@@ -8989,7 +9337,7 @@ static void DrawLineElement(int sx, int sy, int element, boolean change_level)
   int lx = sx + level_xpos;
   int ly = sy + level_ypos;
 
-  SetElementExt(lx, ly, element, change_level);
+  SetElementExt(lx, ly, element, change_level, -1);
 }
 
 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
@@ -9534,6 +9882,10 @@ static void RandomPlacement(int new_element)
   int num_percentage, num_elements;
   int x, y;
 
+#if 1
+  ResetIntelliDraw();
+#endif
+
   /* determine number of free positions for randomly placing the new element */
   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
   {
@@ -9557,20 +9909,28 @@ static void RandomPlacement(int new_element)
     for (x = 0; x < lev_fieldx; x++)
       for (y = 0; y < lev_fieldy; y++)
        if (free_position[x][y])
+#if 1
+         SetElement(x, y, new_element);
+#else
          Feld[x][y] = new_element;
+#endif
   }
   else
   {
     while (num_elements > 0)
     {
-      x = RND(lev_fieldx);
-      y = RND(lev_fieldy);
+      x = GetSimpleRandom(lev_fieldx);
+      y = GetSimpleRandom(lev_fieldy);
 
       /* don't place element at the same position twice */
       if (free_position[x][y])
       {
        free_position[x][y] = FALSE;
+#if 1
+       SetElement(x, y, new_element);
+#else
        Feld[x][y] = new_element;
+#endif
        num_elements--;
       }
     }
@@ -9739,7 +10099,7 @@ static void HandleDrawingAreas(struct GadgetInfo *gi)
          }
 
 #if 1
-         SetElement(lx, ly, new_element);
+         SetElementButton(lx, ly, new_element, button);
 #else
          Feld[lx][ly] = new_element;
          DrawMiniElement(sx, sy, new_element);