added functions for masked drawing of sized elements

[rocksndiamonds.git] / src / files.c

diff --git a/src/files.c b/src/files.c
index 795aeda2befb595fc04508083404fd91e729275f..c60e08b45e80f88a623775853928bd937adbcd45 100644 (file)
--- a/src/files.c
+++ b/src/files.c
@@ -1603,6 +1603,7 @@ static void setLevelInfoToDefaults_Level(struct LevelInfo *level)
 
   setLevelInfoToDefaults_EM();
   setLevelInfoToDefaults_SP();
+  setLevelInfoToDefaults_MM();
 
   level->native_em_level = &native_em_level;
   level->native_sp_level = &native_sp_level;
@@ -1637,6 +1638,9 @@ static void setLevelInfoToDefaults_Level(struct LevelInfo *level)
 
   BorderElement = EL_STEELWALL;
 
+  /* detect custom elements when loading them */
+  level->file_has_custom_elements = FALSE;
+
   /* set all bug compatibility flags to "false" => do not emulate this bug */
   level->use_action_after_change_bug = FALSE;
 
@@ -1918,6 +1922,26 @@ static int getFileTypeFromBasename(char *basename)
   return LEVEL_FILE_TYPE_UNKNOWN;
 }
 
+static int getFileTypeFromMagicBytes(char *filename, int type)
+{
+  File *file;
+
+  if ((file = openFile(filename, MODE_READ)))
+  {
+    char chunk_name[CHUNK_ID_LEN + 1];
+
+    getFileChunkBE(file, chunk_name, NULL);
+
+    if (strEqual(chunk_name, "MMII") ||
+       strEqual(chunk_name, "MIRR"))
+      type = LEVEL_FILE_TYPE_MM;
+
+    closeFile(file);
+  }
+
+  return type;
+}
+
 static boolean checkForPackageFromBasename(char *basename)
 {
   /* !!! WON'T WORK ANYMORE IF getFileTypeFromBasename() ALSO DETECTS !!!
@@ -2184,6 +2208,9 @@ static void determineLevelFileInfo_Filetype(struct LevelFileInfo *lfi)
 {
   if (lfi->type == LEVEL_FILE_TYPE_UNKNOWN)
     lfi->type = getFileTypeFromBasename(lfi->basename);
+
+  if (lfi->type == LEVEL_FILE_TYPE_RND)
+    lfi->type = getFileTypeFromMagicBytes(lfi->filename, lfi->type);
 }
 
 static void setLevelFileInfo(struct LevelFileInfo *level_file_info, int nr)
@@ -2558,6 +2585,8 @@ static int LoadLevel_CUS1(File *file, int chunk_size, struct LevelInfo *level)
     element_info[element].push_delay_random = 8;
   }
 
+  level->file_has_custom_elements = TRUE;
+
   return chunk_size;
 }
 
@@ -2584,6 +2613,8 @@ static int LoadLevel_CUS2(File *file, int chunk_size, struct LevelInfo *level)
       Error(ERR_WARN, "invalid custom element number %d", element);
   }
 
+  level->file_has_custom_elements = TRUE;
+
   return chunk_size;
 }
 
@@ -2675,6 +2706,8 @@ static int LoadLevel_CUS3(File *file, int chunk_size, struct LevelInfo *level)
     ei->modified_settings = TRUE;
   }
 
+  level->file_has_custom_elements = TRUE;
+
   return chunk_size;
 }
 
@@ -2823,6 +2856,8 @@ static int LoadLevel_CUS4(File *file, int chunk_size, struct LevelInfo *level)
   /* mark this custom element as modified */
   ei->modified_settings = TRUE;
 
+  level->file_has_custom_elements = TRUE;
+
   return chunk_size;
 }
 
@@ -2867,6 +2902,8 @@ static int LoadLevel_GRP1(File *file, int chunk_size, struct LevelInfo *level)
   /* mark this group element as modified */
   element_info[element].modified_settings = TRUE;
 
+  level->file_has_custom_elements = TRUE;
+
   return chunk_size;
 }
 
@@ -3159,6 +3196,8 @@ static int LoadLevel_CUSX(File *file, int chunk_size, struct LevelInfo *level)
       break;
   }
 
+  level->file_has_custom_elements = TRUE;
+
   return real_chunk_size;
 }
 
@@ -3184,6 +3223,8 @@ static int LoadLevel_GRPX(File *file, int chunk_size, struct LevelInfo *level)
   *ei = xx_ei;
   *group = xx_group;
 
+  level->file_has_custom_elements = TRUE;
+
   return real_chunk_size;
 }
 
@@ -3917,7 +3958,8 @@ void CopyNativeLevel_RND_to_MM(struct LevelInfo *level)
 
   for (x = 0; x < level->fieldx; x++)
     for (y = 0; y < level->fieldy; y++)
-      level_mm->field[x][y] = map_element_RND_to_MM(level->field[x][y]);
+      Ur[x][y] =
+       level_mm->field[x][y] = map_element_RND_to_MM(level->field[x][y]);
 }
 
 void CopyNativeLevel_MM_to_RND(struct LevelInfo *level)
@@ -3936,7 +3978,10 @@ void CopyNativeLevel_MM_to_RND(struct LevelInfo *level)
   level->gems_needed = level_mm->kettles_needed;
 
   strcpy(level->name, level_mm->name);
-  strcpy(level->author, level_mm->author);
+
+  /* only overwrite author from 'levelinfo.conf' if author defined in level */
+  if (!strEqual(level_mm->author, ANONYMOUS_NAME))
+    strcpy(level->author, level_mm->author);
 
   level->score[SC_PACMAN]     = level_mm->score[SC_PACMAN];
   level->score[SC_KEY]        = level_mm->score[SC_PACMAN];
@@ -3947,6 +3992,17 @@ void CopyNativeLevel_MM_to_RND(struct LevelInfo *level)
   for (x = 0; x < level->fieldx; x++)
     for (y = 0; y < level->fieldy; y++)
       level->field[x][y] = map_element_MM_to_RND(level_mm->field[x][y]);
+
+  if (level_mm->auto_count_kettles)
+  {
+    level->gems_needed = 0;
+
+    for (x = 0; x < level->fieldx; x++)
+      for (y = 0; y < level->fieldy; y++)
+       if (level->field[x][y] == EL_MM_KETTLE ||
+           level->field[x][y] == EL_DF_CELL)
+         level->gems_needed++;
+  }
 }
 
 
@@ -6265,9 +6321,25 @@ static void LoadLevel_InitVersion(struct LevelInfo *level, char *filename)
     level->em_explodes_by_fire = TRUE;
 }
 
-static void LoadLevel_InitElements(struct LevelInfo *level, char *filename)
+static void LoadLevel_InitStandardElements(struct LevelInfo *level)
 {
-  int i, j, x, y;
+  int i, x, y;
+
+  /* map elements that have changed in newer versions */
+  level->amoeba_content = getMappedElementByVersion(level->amoeba_content,
+                                                   level->game_version);
+  for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
+    for (x = 0; x < 3; x++)
+      for (y = 0; y < 3; y++)
+       level->yamyam_content[i].e[x][y] =
+         getMappedElementByVersion(level->yamyam_content[i].e[x][y],
+                                   level->game_version);
+
+}
+
+static void LoadLevel_InitCustomElements(struct LevelInfo *level)
+{
+  int i, j;
 
   /* map custom element change events that have changed in newer versions
      (these following values were accidentally changed in version 3.0.1)
@@ -6381,19 +6453,30 @@ static void LoadLevel_InitElements(struct LevelInfo *level, char *filename)
     }
   }
 
-  /* map elements that have changed in newer versions */
-  level->amoeba_content = getMappedElementByVersion(level->amoeba_content,
-                                                   level->game_version);
-  for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
-    for (x = 0; x < 3; x++)
-      for (y = 0; y < 3; y++)
-       level->yamyam_content[i].e[x][y] =
-         getMappedElementByVersion(level->yamyam_content[i].e[x][y],
-                                   level->game_version);
+  /* set some other uninitialized values of custom elements in older levels */
+  if (level->game_version < VERSION_IDENT(3,1,0,0))
+  {
+    for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+    {
+      int element = EL_CUSTOM_START + i;
+
+      element_info[element].access_direction = MV_ALL_DIRECTIONS;
+
+      element_info[element].explosion_delay = 17;
+      element_info[element].ignition_delay = 8;
+    }
+  }
+}
+
+static void LoadLevel_InitElements(struct LevelInfo *level, char *filename)
+{
+  LoadLevel_InitStandardElements(level);
+
+  if (level->file_has_custom_elements)
+    LoadLevel_InitCustomElements(level);
 
   /* initialize element properties for level editor etc. */
   InitElementPropertiesEngine(level->game_version);
-  InitElementPropertiesAfterLoading(level->game_version);
   InitElementPropertiesGfxElement();
 }