rnd-20060805-5-src
[rocksndiamonds.git] / src / game.c
index 09eea8f3bf0c635affcf0b99b2916fe2c5378c75..daa0b30eb457c97ec29bd0aa69755f40964e19fd 100644 (file)
 #define USE_BOTH_SWITCHGATE_SWITCHES   (USE_NEW_STUFF          * 1)
 #define USE_PLAYER_GRAVITY             (USE_NEW_STUFF          * 1)
 #define USE_FIXED_BORDER_RUNNING_GFX   (USE_NEW_STUFF          * 1)
+#define USE_QUICKSAND_BD_ROCK_BUGFIX   (USE_NEW_STUFF          * 0)
 
 #define USE_QUICKSAND_IMPACT_BUGFIX    (USE_NEW_STUFF          * 0)
 
+#define USE_CODE_THAT_BREAKS_SNAKE_BITE        (USE_NEW_STUFF          * 1)
+
+
 /* for DigField() */
 #define DF_NO_PUSH             0
 #define DF_DIG                 1
        ((e) >= NUM_FILE_ELEMENTS ? EL_UNKNOWN : (e))
 #endif
 
-#define GET_TARGET_ELEMENT(e, ch, cv, cs)                              \
+#define RESOLVED_REFERENCE_ELEMENT(be, e)                              \
+       ((be) + (e) - EL_SELF < EL_CUSTOM_START ? EL_CUSTOM_START :     \
+        (be) + (e) - EL_SELF > EL_CUSTOM_END   ? EL_CUSTOM_END :       \
+        (be) + (e) - EL_SELF)
+
+#define GET_TARGET_ELEMENT(be, e, ch, cv, cs)                          \
        ((e) == EL_TRIGGER_PLAYER   ? (ch)->actual_trigger_player    :  \
         (e) == EL_TRIGGER_ELEMENT  ? (ch)->actual_trigger_element   :  \
         (e) == EL_TRIGGER_CE_VALUE ? (ch)->actual_trigger_ce_value  :  \
         (e) == EL_TRIGGER_CE_SCORE ? (ch)->actual_trigger_ce_score  :  \
         (e) == EL_CURRENT_CE_VALUE ? (cv) :                            \
-        (e) == EL_CURRENT_CE_SCORE ? (cs) : (e))
+        (e) == EL_CURRENT_CE_SCORE ? (cs) :                            \
+        (e) >= EL_LAST_CE_8 && (e) <= EL_NEXT_CE_8 ?                   \
+        RESOLVED_REFERENCE_ELEMENT(be, e) :                            \
+        (e))
 
 #define CAN_GROW_INTO(e)                                               \
        ((e) == EL_SAND || (IS_DIGGABLE(e) && level.grow_into_diggable))
@@ -1197,6 +1209,7 @@ static void InitField(int x, int y, boolean init_game)
        InitField(x, y, init_game);
 #endif
       }
+
       break;
   }
 
@@ -1451,6 +1464,18 @@ static void resolve_group_element(int group_element, int recursion_depth)
 }
 #endif
 
+#if 0
+static void replace_reference_element(int base_element, int *element)
+{
+  if (*element >= EL_LAST_CE_8 && *element <= EL_NEXT_CE_8)
+  {
+    *element = base_element + *element - EL_SELF;
+    *element = (*element < EL_CUSTOM_START ? EL_CUSTOM_START :
+               *element > EL_CUSTOM_END   ? EL_CUSTOM_END   : *element);
+  }
+}
+#endif
+
 /*
   =============================================================================
   InitGameEngine()
@@ -1753,6 +1778,11 @@ static void InitGameEngine()
              for (l = 0; l < group->num_elements_resolved; l++)
                trigger_events[group->element_resolved[l]][k] = TRUE;
            }
+#if 1
+           else if (trigger_element == EL_ANY_ELEMENT)
+             for (l = 0; l < MAX_NUM_ELEMENTS; l++)
+               trigger_events[l][k] = TRUE;
+#endif
            else
              trigger_events[trigger_element][k] = TRUE;
          }
@@ -1890,6 +1920,29 @@ static void InitGameEngine()
         EL_EMPTY);
     }
   }
+
+#if 0
+  /* ---------- initialize reference elements ------------------------------- */
+  for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+  {
+    int element = EL_CUSTOM_START + i;
+    struct ElementInfo *ei = &element_info[element];
+
+    for (y = 0; y < 3; y++) for (x = 0; x < 3; x++)
+      replace_reference_element(element, &ei->content.e[x][y]);
+
+    for (j = 0; j < ei->num_change_pages; j++)
+    {
+      struct ElementChangeInfo *change = &ei->change_page[j];
+
+      replace_reference_element(element, &change->target_element);
+      replace_reference_element(element, &change->trigger_element);
+
+      for (y = 0; y < 3; y++) for (x = 0; x < 3; x++)
+       replace_reference_element(element, &change->target_content.e[x][y]);
+    }
+  }
+#endif
 }
 
 int get_num_special_action(int element, int action_first, int action_last)
@@ -5861,7 +5914,12 @@ void StartMoving(int x, int y)
        started_moving = TRUE;
 
        Feld[x][y] = EL_QUICKSAND_EMPTYING;
+#if USE_QUICKSAND_BD_ROCK_BUGFIX
+       if (Store[x][y] != EL_ROCK && Store[x][y] != EL_BD_ROCK)
+         Store[x][y] = EL_ROCK;
+#else
        Store[x][y] = EL_ROCK;
+#endif
 
        PlayLevelSoundAction(x, y, ACTION_EMPTYING);
       }
@@ -7804,7 +7862,8 @@ void MauerAbleger(int ax, int ay)
 
   if (element == EL_EXPANDABLE_WALL_HORIZONTAL ||
       element == EL_EXPANDABLE_WALL_ANY ||
-      element == EL_EXPANDABLE_WALL)
+      element == EL_EXPANDABLE_WALL ||
+      element == EL_BD_EXPANDABLE_WALL)
   {
     if (links_frei)
     {
@@ -8413,6 +8472,8 @@ static void ExecuteCustomElementAction(int x, int y, int element, int page)
 
        if (ei->collect_score == 0)
        {
+         int xx, yy;
+
 #if 0
          printf("::: CE_SCORE_GETS_ZERO\n");
 #endif
@@ -8423,6 +8484,26 @@ static void ExecuteCustomElementAction(int x, int y, int element, int page)
 #if 0
          printf("::: RESULT: %d, %d\n", Feld[x][y], ChangePage[x][y]);
 #endif
+
+#if 1
+         /*
+           This is a very special case that seems to be a mixture between
+           CheckElementChange() and CheckTriggeredElementChange(): while
+           the first one only affects single elements that are triggered
+           directly, the second one affects multiple elements in the playfield
+           that are triggered indirectly by another element. This is a third
+           case: Changing the CE score always affects multiple identical CEs,
+           so every affected CE must be checked, not only the single CE for
+           which the CE score was changed in the first place (as every instance
+           of that CE shares the same CE score, and therefore also can change)!
+         */
+         SCAN_PLAYFIELD(xx, yy)
+         {
+           if (Feld[xx][yy] == element)
+             CheckElementChange(xx, yy, element, EL_UNDEFINED,
+                                CE_SCORE_GETS_ZERO);
+         }
+#endif
        }
       }
 
@@ -8455,7 +8536,12 @@ static void CreateFieldExt(int x, int y, int element, boolean is_change)
 #endif
   boolean new_element_is_player = ELEM_IS_PLAYER(new_element);
   boolean add_player_onto_element = (new_element_is_player &&
+#if USE_CODE_THAT_BREAKS_SNAKE_BITE
+                                    /* this breaks SnakeBite when a snake is
+                                       halfway through a door that closes */
+                                    /* NOW FIXED AT LEVEL INIT IN files.c */
                                     new_element != EL_SOKOBAN_FIELD_PLAYER &&
+#endif
                                     IS_WALKABLE(old_element));
 
 #if 0
@@ -8682,7 +8768,7 @@ static boolean ChangeElement(int x, int y, int element, int page)
          ChangeEvent[ex][ey] = ChangeEvent[x][y];
 
          content_element = change->target_content.e[xx][yy];
-         target_element = GET_TARGET_ELEMENT(content_element, change,
+         target_element = GET_TARGET_ELEMENT(element, content_element, change,
                                              ce_value, ce_score);
 
          CreateElementFromChange(ex, ey, target_element);
@@ -8704,7 +8790,7 @@ static boolean ChangeElement(int x, int y, int element, int page)
   }
   else
   {
-    target_element = GET_TARGET_ELEMENT(change->target_element, change,
+    target_element = GET_TARGET_ELEMENT(element, change->target_element, change,
                                        ce_value, ce_score);
 
     if (element == EL_DIAGONAL_GROWING ||
@@ -9644,6 +9730,10 @@ void GameActions_EM_Main()
   for (i = 0; i < MAX_PLAYERS; i++)
     effective_action[i] = stored_player[i].effective_action;
 
+#if 0
+  printf("::: %04d: %08x\n", FrameCounter, effective_action[0]);
+#endif
+
   GameActions_EM(effective_action, warp_mode);
 
   CheckLevelTime();
@@ -10014,7 +10104,8 @@ void GameActions_RND()
     else if (element == EL_EXPANDABLE_WALL ||
             element == EL_EXPANDABLE_WALL_HORIZONTAL ||
             element == EL_EXPANDABLE_WALL_VERTICAL ||
-            element == EL_EXPANDABLE_WALL_ANY)
+            element == EL_EXPANDABLE_WALL_ANY ||
+            element == EL_BD_EXPANDABLE_WALL)
       MauerAbleger(x, y);
     else if (element == EL_FLAMES)
       CheckForDragon(x, y);
@@ -10367,7 +10458,7 @@ static void CheckGravityMovement(struct PlayerInfo *player)
   {
     int move_dir_horizontal = player->effective_action & MV_HORIZONTAL;
     int move_dir_vertical   = player->effective_action & MV_VERTICAL;
-    boolean player_is_snapping = player->effective_action & JOY_BUTTON_1;
+    boolean player_is_snapping = (player->effective_action & JOY_BUTTON_1);
     int jx = player->jx, jy = player->jy;
     boolean player_is_moving_to_valid_field =
       (!player_is_snapping &&