added support for level-specific preview colors for BD engine

[rocksndiamonds.git] / src / tools.c

diff --git a/src/tools.c b/src/tools.c
index 1d3607e446eb94000aace0fbc45a0439f6906f5c..c271314e406df9222193be7e68343322a07014f3 100644 (file)
--- a/src/tools.c
+++ b/src/tools.c
@@ -3396,6 +3396,14 @@ static void ShowEnvelopeRequest(char *text, unsigned int req_state, int action)
   game.envelope_active = FALSE;
 }
 
+static Bitmap *GetPreviewTileBitmap(Bitmap *bitmap)
+{
+  if (level.game_engine_type == GAME_ENGINE_TYPE_BD)
+    return GetPreviewTileBitmap_BD(bitmap);
+
+  return bitmap;
+}
+
 static void DrawPreviewElement(int dst_x, int dst_y, int element, int tilesize)
 {
   if (IS_MM_WALL(element))
@@ -3409,6 +3417,10 @@ static void DrawPreviewElement(int dst_x, int dst_y, int element, int tilesize)
     int graphic = el2preimg(element);
 
     getSizedGraphicSource(graphic, 0, tilesize, &src_bitmap, &src_x, &src_y);
+
+    // for BD style levels, maybe use bitmap with level-specific colors
+    src_bitmap = GetPreviewTileBitmap(src_bitmap);
+
     BlitBitmap(src_bitmap, drawto, src_x, src_y, tilesize, tilesize,
               dst_x, dst_y);
   }
@@ -3815,8 +3827,33 @@ void DrawPreviewPlayers(void)
   }
 }
 
+static void PreparePreviewTileBitmap(void)
+{
+  // check if special preview bitmap with level-specific colors should be created
+  if (level.game_engine_type != GAME_ENGINE_TYPE_BD)
+    return;
+
+  // use original sized bitmap (else reduced color palette is lost by downscaling)
+  int original_tilesize = MAX(MINI_TILESIZE, preview.tile_size);
+  int scale_down_factor = original_tilesize / preview.tile_size;
+  Bitmap *src_bitmap;
+  int src_x, src_y;
+  int element = EL_BD_ROCK;
+  int graphic = el2preimg(element);
+
+  // create special preview bitmap and scale it down to preview tile size
+  getSizedGraphicSource(graphic, 0, original_tilesize, &src_bitmap, &src_x, &src_y);
+  PreparePreviewTileBitmap_BD(src_bitmap, scale_down_factor);
+
+  // force using special preview bitmap to replace original preview bitmap
+  getSizedGraphicSource(graphic, 0, preview.tile_size, &src_bitmap, &src_x, &src_y);
+  SetPreviewTileBitmapReference_BD(src_bitmap);
+}
+
 void DrawPreviewLevelInitial(void)
 {
+  PreparePreviewTileBitmap();  // only needed for native BD style levels
+
   DrawPreviewLevelExt(TRUE);
   DrawPreviewPlayers();
 }
@@ -11221,6 +11258,11 @@ void OpenURLFromHash(SetupFileHash *hash, int hash_key)
   OpenURL(getHashEntry(hash, int2str(hash_key, 0)));
 }
 
+char *getCurrentLevelsetName(void)
+{
+  return leveldir_current->name;
+}
+
 
 // ============================================================================
 // tests
@@ -11316,9 +11358,9 @@ static unsigned int test_uuid_random_function_better(int max)
 
 static void TestGeneratingUUIDs_RunTest(int nr, int always_seed, int num_uuids)
 {
-  struct hashtable *hash_seeds =
+  HashTable *hash_seeds =
     create_hashtable(get_hash_from_string, hash_key_strings_are_equal, free, NULL);
-  struct hashtable *hash_uuids =
+  HashTable *hash_uuids =
     create_hashtable(get_hash_from_string, hash_key_strings_are_equal, free, NULL);
   static char message[100];
   int i;