rnd-20030829-R-src
[rocksndiamonds.git] / src / game.c
index 0f2aff310c07a1e89555c6d5fa9be3a317eb6a66..7b3017e95a7f2864f62b877f913e4bebceccb933 100644 (file)
@@ -171,6 +171,7 @@ static void TestIfElementTouchesCustomElement(int, int);
 
 static boolean CheckTriggeredElementChange(int, int, int, int);
 static boolean CheckElementChange(int, int, int, int);
+static void ChangeElementNow(int, int, int);
 
 static void PlaySoundLevel(int, int, int);
 static void PlaySoundLevelNearest(int, int, int);
@@ -215,7 +216,7 @@ struct ChangingElementInfo
   void (*post_change_function)(int x, int y);
 };
 
-static struct ChangingElementInfo change_delay_list[] =
+static struct ChangingElementInfo changing_element_list[] =
 {
   {
     EL_NUT_BREAKING,
@@ -414,16 +415,14 @@ collect_count_list[] =
   { EL_UNDEFINED,              0 },
 };
 
+static boolean changing_element[MAX_NUM_ELEMENTS];
 static unsigned long trigger_events[MAX_NUM_ELEMENTS];
 
-#define IS_AUTO_CHANGING(e)    (element_info[e].change_events & \
-                                CH_EVENT_BIT(CE_DELAY))
+#define IS_AUTO_CHANGING(e)    (changing_element[e])
 #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 CE_PAGE(e, ce)         (element_info[e].event_page[ce])
-
 
 void GetPlayerConfig()
 {
@@ -743,7 +742,7 @@ void DrawGameDoorValues()
 
 static void InitGameEngine()
 {
-  int i, j, k;
+  int i;
 
   /* set game engine from tape file when re-playing, else from level file */
   game.engine_version = (tape.playing ? tape.engine_version :
@@ -774,82 +773,78 @@ static void InitGameEngine()
   /* ---------- initialize changing elements ------------------------------- */
 
   /* initialize changing elements information */
-  for (i=0; i < MAX_NUM_ELEMENTS; i++)
+  for (i=0; i<MAX_NUM_ELEMENTS; i++)
   {
-    struct ElementInfo *ei = &element_info[i];
-
-    /* this pointer might have been changed in the level editor */
-    ei->change = &ei->change_page[0];
+#if 1
+    element_info[i].change.pre_change_function = NULL;
+    element_info[i].change.change_function = NULL;
+    element_info[i].change.post_change_function = NULL;
 
     if (!IS_CUSTOM_ELEMENT(i))
     {
-      ei->change->target_element = EL_EMPTY_SPACE;
-      ei->change->delay_fixed = 0;
-      ei->change->delay_random = 0;
-      ei->change->delay_frames = 1;
+      element_info[i].change.target_element = EL_EMPTY_SPACE;
+      element_info[i].change.delay_fixed = 0;
+      element_info[i].change.delay_random = 0;
+      element_info[i].change.delay_frames = 1;
     }
 
-    ei->change_events = CE_BITMASK_DEFAULT;
-    for (j=0; j < NUM_CHANGE_EVENTS; j++)
-    {
-      ei->event_page_num[j] = 0;
-      ei->event_page[j] = &ei->change_page[0];
-    }
+    changing_element[i] = FALSE;
+#else
+    changing_element[i].base_element = EL_UNDEFINED;
+    changing_element[i].next_element = EL_UNDEFINED;
+    changing_element[i].change_delay = -1;
+    changing_element[i].pre_change_function = NULL;
+    changing_element[i].change_function = NULL;
+    changing_element[i].post_change_function = NULL;
+#endif
   }
 
   /* add changing elements from pre-defined list */
-  for (i=0; change_delay_list[i].element != EL_UNDEFINED; i++)
+  for (i=0; changing_element_list[i].element != EL_UNDEFINED; i++)
   {
-    struct ChangingElementInfo *ch_delay = &change_delay_list[i];
-    struct ElementInfo *ei = &element_info[ch_delay->element];
-
-    ei->change->target_element       = ch_delay->target_element;
-    ei->change->delay_fixed          = ch_delay->change_delay;
-
-    ei->change->pre_change_function  = ch_delay->pre_change_function;
-    ei->change->change_function      = ch_delay->change_function;
-    ei->change->post_change_function = ch_delay->post_change_function;
-
-    ei->change_events |= CH_EVENT_BIT(CE_DELAY);
-  }
+    int element = changing_element_list[i].element;
+    struct ChangingElementInfo *ce = &changing_element_list[i];
+    struct ElementChangeInfo *change = &element_info[element].change;
 
 #if 1
-  /* add change events from custom element configuration */
-  for (i=0; i < NUM_CUSTOM_ELEMENTS; i++)
-  {
-    struct ElementInfo *ei = &element_info[EL_CUSTOM_START + i];
-
-    for (j=0; j < ei->num_change_pages; j++)
-    {
-      if (!ei->change_page[j].can_change)
-       continue;
-
-      for (k=0; k < NUM_CHANGE_EVENTS; k++)
-      {
-       /* only add event page for the first page found with this event */
-       if (ei->change_page[j].events & CH_EVENT_BIT(k) &&
-           !(ei->change_events & CH_EVENT_BIT(k)))
-       {
-         ei->change_events |= CH_EVENT_BIT(k);
-         ei->event_page_num[k] = j;
-         ei->event_page[k] = &ei->change_page[j];
-       }
-      }
-    }
-  }
+    change->target_element       = ce->target_element;
+    change->delay_fixed          = ce->change_delay;
+    change->pre_change_function  = ce->pre_change_function;
+    change->change_function      = ce->change_function;
+    change->post_change_function = ce->post_change_function;
 
+    changing_element[element] = TRUE;
 #else
+    changing_element[element].base_element         = ce->base_element;
+    changing_element[element].next_element         = ce->next_element;
+    changing_element[element].change_delay         = ce->change_delay;
+    changing_element[element].pre_change_function  = ce->pre_change_function;
+    changing_element[element].change_function      = ce->change_function;
+    changing_element[element].post_change_function = ce->post_change_function;
+#endif
+  }
 
-  /* add change events from custom element configuration */
+  /* add changing elements from custom element configuration */
   for (i=0; i < NUM_CUSTOM_ELEMENTS; i++)
   {
     int element = EL_CUSTOM_START + i;
+#if 0
+    struct ElementChangeInfo *change = &element_info[element].change;
+#endif
 
     /* only add custom elements that change after fixed/random frame delay */
-    if (CAN_CHANGE(element) && HAS_CHANGE_EVENT(element, CE_DELAY))
-      element_info[element].change_events |= CH_EVENT_BIT(CE_DELAY);
-  }
+    if (!CAN_CHANGE(element) || !HAS_CHANGE_EVENT(element, CE_DELAY))
+      continue;
+
+#if 1
+    changing_element[element] = TRUE;
+#else
+    changing_element[element].base_element = element;
+    changing_element[element].next_element = change->target_element;
+    changing_element[element].change_delay = (change->delay_fixed *
+                                             change->delay_frames);
 #endif
+  }
 
   /* ---------- initialize trigger events ---------------------------------- */
 
@@ -857,32 +852,11 @@ static void InitGameEngine()
   for (i=0; i<MAX_NUM_ELEMENTS; i++)
     trigger_events[i] = EP_BITMASK_DEFAULT;
 
-#if 1
-  /* add trigger events from element change event properties */
-  for (i=0; i<MAX_NUM_ELEMENTS; i++)
-  {
-    struct ElementInfo *ei = &element_info[i];
-
-    for (j=0; j < ei->num_change_pages; j++)
-    {
-      if (!ei->change_page->can_change)
-       continue;
-
-      if (ei->change_page[j].events & CH_EVENT_BIT(CE_BY_OTHER))
-      {
-       int trigger_element = ei->change_page[j].trigger_element;
-
-       trigger_events[trigger_element] |= ei->change_page[j].events;
-      }
-    }
-  }
-#else
   /* 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] |=
-       element_info[i].change->events;
-#endif
+      trigger_events[element_info[i].change.trigger_element] |=
+       element_info[i].change.events;
 
   /* ---------- initialize push delay -------------------------------------- */
 
@@ -1262,19 +1236,16 @@ void InitGame()
 
       if (CAN_CHANGE(element))
       {
-       for (i=0; i < element_info[element].num_change_pages; i++)
-       {
-         content = element_info[element].change_page[i].target_element;
-         is_player = ELEM_IS_PLAYER(content);
+       content = element_info[element].change.target_element;
+       is_player = ELEM_IS_PLAYER(content);
 
-         if (is_player && (found_rating < 3 || element < found_element))
-         {
-           start_x = x;
-           start_y = y;
+       if (is_player && (found_rating < 3 || element < found_element))
+       {
+         start_x = x;
+         start_y = y;
 
-           found_rating = 3;
-           found_element = element;
-         }
+         found_rating = 3;
+         found_element = element;
        }
       }
 
@@ -1295,19 +1266,16 @@ void InitGame()
        if (!CAN_CHANGE(element))
          continue;
 
-       for (i=0; i < element_info[element].num_change_pages; i++)
-       {
-         content = element_info[element].change_page[i].content[xx][yy];
-         is_player = ELEM_IS_PLAYER(content);
+       content = element_info[element].change.content[xx][yy];
+       is_player = ELEM_IS_PLAYER(content);
 
-         if (is_player && (found_rating < 1 || element < found_element))
-         {
-           start_x = x + xx - 1;
-           start_y = y + yy - 1;
+       if (is_player && (found_rating < 1 || element < found_element))
+       {
+         start_x = x + xx - 1;
+         start_y = y + yy - 1;
 
-           found_rating = 1;
-           found_element = element;
-         }
+         found_rating = 1;
+         found_element = element;
        }
       }
     }
@@ -2897,12 +2865,24 @@ void Impact(int x, int y)
     PlaySoundLevel(x, y, SND_PEARL_BREAKING);
     return;
   }
+#if 1
   else if (impact && CheckElementChange(x, y, element, CE_IMPACT))
   {
     PlaySoundLevelElementAction(x, y, element, ACTION_IMPACT);
 
     return;
   }
+#else
+  else if (impact && CAN_CHANGE(element) &&
+          HAS_CHANGE_EVENT(element, CE_IMPACT))
+  {
+    PlaySoundLevelElementAction(x, y, element, ACTION_IMPACT);
+
+    ChangeElementNow(x, y, element);
+
+    return;
+  }
+#endif
 
   if (impact && element == EL_AMOEBA_DROP)
   {
@@ -3034,10 +3014,17 @@ void Impact(int x, int y)
        {
          ToggleLightSwitch(x, y + 1);
        }
+#if 1
        else
        {
          CheckElementChange(x, y + 1, smashed, CE_SMASHED);
        }
+#else
+       else if (CAN_CHANGE(smashed) && HAS_CHANGE_EVENT(smashed, CE_SMASHED))
+       {
+         ChangeElementNow(x, y + 1, smashed);
+       }
+#endif
       }
       else
       {
@@ -5327,7 +5314,7 @@ static void ChangeElementNowExt(int x, int y, int target_element)
 {
   /* check if element under player changes from accessible to unaccessible
      (needed for special case of dropping element which then changes) */
-  if (IS_PLAYER(x, y) && !PLAYER_PROTECTED(x, y) &&
+  if (IS_PLAYER(x, y) &&
       IS_ACCESSIBLE(Feld[x][y]) && !IS_ACCESSIBLE(target_element))
   {
     Bang(x, y);
@@ -5357,12 +5344,26 @@ static void ChangeElementNowExt(int x, int y, int target_element)
     RelocatePlayer(x, y, target_element);
 }
 
-static void ChangeElementNow(int x, int y, int element, int page)
+static void ChangeElementNow(int x, int y, int element)
 {
-  struct ElementChangeInfo *change = &element_info[element].change_page[page];
+  struct ElementChangeInfo *change = &element_info[element].change;
+
+#if 0
+  if (element >= EL_CUSTOM_START + 17 && element <= EL_CUSTOM_START + 39)
+    printf("::: changing... [%d]\n", FrameCounter);
+#endif
+
+#if 0
+  /* prevent CheckTriggeredElementChange() from looping */
+  Changing[x][y] = TRUE;
+#endif
 
   CheckTriggeredElementChange(x, y, Feld[x][y], CE_OTHER_IS_CHANGING);
 
+#if 0
+  Changing[x][y] = FALSE;
+#endif
+
   if (change->explode)
   {
     Bang(x, y);
@@ -5459,21 +5460,42 @@ static void ChangeElementNow(int x, int y, int element, int page)
   }
 }
 
-static void ChangeElement(int x, int y, int page)
+static void ChangeElement(int x, int y)
 {
+#if 1
   int element = MovingOrBlocked2Element(x, y);
-  struct ElementChangeInfo *change = &element_info[element].change_page[page];
+#else
+  int element = Feld[x][y];
+#endif
+  struct ElementChangeInfo *change = &element_info[element].change;
 
   if (ChangeDelay[x][y] == 0)          /* initialize element change */
   {
+#if 1
     ChangeDelay[x][y] = (    change->delay_fixed  * change->delay_frames +
                         RND(change->delay_random * change->delay_frames)) + 1;
+#else
+    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;
+
+      ChangeDelay[x][y] += RND(max_random_delay * delay_frames);
+    }
+#endif
 
     ResetGfxAnimation(x, y);
     ResetRandomAnimationValue(x, y);
 
+#if 1
     if (change->pre_change_function)
       change->pre_change_function(x, y);
+#else
+    if (changing_element[element].pre_change_function)
+      changing_element[element].pre_change_function(x, y);
+#endif
   }
 
   ChangeDelay[x][y]--;
@@ -5485,11 +5507,20 @@ static void ChangeElement(int x, int y, int page)
     if (IS_ANIMATED(graphic))
       DrawLevelGraphicAnimationIfNeeded(x, y, graphic);
 
+#if 1
     if (change->change_function)
       change->change_function(x, y);
+#else
+    if (changing_element[element].change_function)
+      changing_element[element].change_function(x, y);
+#endif
   }
   else                                 /* finish element change */
   {
+#if 0
+    int next_element = changing_element[element].next_element;
+#endif
+
     if (IS_MOVING(x, y))               /* never change a running system ;-) */
     {
       ChangeDelay[x][y] = 1;           /* try change after next move step */
@@ -5497,17 +5528,27 @@ static void ChangeElement(int x, int y, int page)
       return;
     }
 
-    ChangeElementNow(x, y, element, page);
+#if 1
+    ChangeElementNow(x, y, element);
 
     if (change->post_change_function)
       change->post_change_function(x, y);
+#else
+    if (next_element != EL_UNDEFINED)
+      ChangeElementNow(x, y, next_element);
+    else
+      ChangeElementNow(x, y, element_info[element].change.target_element);
+
+    if (changing_element[element].post_change_function)
+      changing_element[element].post_change_function(x, y);
+#endif
   }
 }
 
 static boolean CheckTriggeredElementChange(int lx, int ly, int trigger_element,
                                           int trigger_event)
 {
-  int i, j, x, y;
+  int i, x, y;
 
   if (!(trigger_events[trigger_element] & CH_EVENT_BIT(trigger_event)))
     return FALSE;
@@ -5516,40 +5557,12 @@ static boolean CheckTriggeredElementChange(int lx, int ly, int trigger_element,
   if (trigger_event == CE_OTHER_IS_CHANGING)
     Changing[lx][ly] = TRUE;
 
-  for (i=0; i < NUM_CUSTOM_ELEMENTS; i++)
+  for (i=0; i<MAX_NUM_ELEMENTS; i++)
   {
-    int element = EL_CUSTOM_START + i;
-
-#if 1
-    boolean change_element = FALSE;
-    int page;
-
-    if (!CAN_CHANGE(element) ||
-       !HAS_ANY_CHANGE_EVENT(element, trigger_event))
-      continue;
-
-    for (j=0; j < element_info[element].num_change_pages; j++)
-    {
-      if (element_info[element].change_page[j].trigger_element ==
-         trigger_element)
-      {
-       change_element = TRUE;
-       page = j;
-
-       break;
-      }
-    }
-
-    if (!change_element)
+    if (!CAN_CHANGE(i) || !HAS_CHANGE_EVENT(i, trigger_event) ||
+       element_info[i].change.trigger_element != trigger_element)
       continue;
 
-#else
-    if (!CAN_CHANGE(element) ||
-       !HAS_ANY_CHANGE_EVENT(element, trigger_event) ||
-       element_info[element].change->trigger_element != trigger_element)
-      continue;
-#endif
-
     for (y=0; y<lev_fieldy; y++) for (x=0; x<lev_fieldx; x++)
     {
       if (x == lx && y == ly)  /* do not change trigger element itself */
@@ -5558,10 +5571,10 @@ static boolean CheckTriggeredElementChange(int lx, int ly, int trigger_element,
       if (Changing[x][y])      /* do not change just changing elements */
        continue;
 
-      if (Feld[x][y] == element)
+      if (Feld[x][y] == i)
       {
        ChangeDelay[x][y] = 1;
-       ChangeElement(x, y, page);
+       ChangeElement(x, y);
 
        Changing[x][y] = TRUE;  /* do not change just changed elements */
       }
@@ -5575,28 +5588,20 @@ static boolean CheckTriggeredElementChange(int lx, int ly, int trigger_element,
   return TRUE;
 }
 
-static boolean CheckElementChangeExt(int x, int y, int element,
-                                    int trigger_event, int page)
+static boolean CheckElementChange(int x, int y, int element, int trigger_event)
 {
-  if (!CAN_CHANGE(element) || !HAS_ANY_CHANGE_EVENT(element, trigger_event))
+  if (!CAN_CHANGE(element) || !HAS_CHANGE_EVENT(element, trigger_event))
     return FALSE;
 
   if (Feld[x][y] == EL_BLOCKED)
     Blocked2Moving(x, y, &x, &y);
 
   ChangeDelay[x][y] = 1;
-  ChangeElement(x, y, page);
+  ChangeElement(x, y);
 
   return TRUE;
 }
 
-static boolean CheckElementChange(int x, int y, int element, int trigger_event)
-{
-  int page = element_info[element].event_page_num[trigger_event];
-
-  return CheckElementChangeExt(x, y, element, trigger_event, page);
-}
-
 static void PlayerActions(struct PlayerInfo *player, byte player_action)
 {
   static byte stored_player_action[MAX_PLAYERS];
@@ -5649,7 +5654,13 @@ static void PlayerActions(struct PlayerInfo *player, byte player_action)
     CheckGravityMovement(player);
 
     if (player->MovPos == 0)
+    {
+#if 0
+      printf("Trying... Player frame reset\n");
+#endif
+
       InitPlayerGfxAnimation(player, ACTION_DEFAULT, player->MovDir);
+    }
 
     if (player->MovPos == 0)   /* needed for tape.playing */
       player->is_moving = FALSE;
@@ -5860,7 +5871,7 @@ void GameActions()
     /* this may take place after moving, so 'element' may have changed */
     if (IS_CHANGING(x, y))
     {
-      ChangeElement(x, y, element_info[element].event_page_num[CE_DELAY]);
+      ChangeElement(x, y);
       element = Feld[x][y];
       graphic = el_act_dir2img(element, GfxAction[x][y], MovDir[x][y]);
     }
@@ -6699,9 +6710,8 @@ void TestIfElementTouchesCustomElement(int x, int y)
     { 0, +1 }
   };
   boolean change_center_element = FALSE;
-  int center_element_change_page = 0;
   int center_element = Feld[x][y];
-  int i, j;
+  int i;
 
   if (check_changing)  /* prevent this function from running into a loop */
     return;
@@ -6721,47 +6731,17 @@ void TestIfElementTouchesCustomElement(int x, int y)
 
     /* check for change of center element (but change it only once) */
     if (IS_CUSTOM_ELEMENT(center_element) &&
-       element_info[center_element].change_events & CE_OTHER_IS_TOUCHING &&
-       !change_center_element)
-    {
-      for (j=0; j < element_info[center_element].num_change_pages; j++)
-      {
-       struct ElementChangeInfo *change =
-         &element_info[center_element].change_page[j];
-
-       if (change->events & CE_OTHER_IS_TOUCHING &&
-           change->trigger_element == border_element)
-       {
-         change_center_element = TRUE;
-         center_element_change_page = j;
-
-         break;
-       }
-      }
-    }
+       border_element == element_info[center_element].change.trigger_element)
+      change_center_element = TRUE;
 
     /* check for change of border element */
     if (IS_CUSTOM_ELEMENT(border_element) &&
-       element_info[border_element].change_events & CE_OTHER_IS_TOUCHING)
-    {
-      for (j=0; j < element_info[border_element].num_change_pages; j++)
-      {
-       struct ElementChangeInfo *change =
-         &element_info[border_element].change_page[j];
-
-       if (change->events & CE_OTHER_IS_TOUCHING &&
-           change->trigger_element == center_element)
-       {
-         CheckElementChangeExt(xx,yy, border_element,CE_OTHER_IS_TOUCHING, j);
-         break;
-       }
-      }
-    }
+       center_element == element_info[border_element].change.trigger_element)
+      CheckElementChange(xx, yy, border_element, CE_OTHER_IS_TOUCHING);
   }
 
   if (change_center_element)
-    CheckElementChangeExt(x, y, center_element, CE_OTHER_IS_TOUCHING,
-                         center_element_change_page);
+    CheckElementChange(x, y, center_element, CE_OTHER_IS_TOUCHING);
 
   check_changing = FALSE;
 }