added screen redraw function for native BD engine

[rocksndiamonds.git] / src / game_bd / main_bd.c

diff --git a/src/game_bd/main_bd.c b/src/game_bd/main_bd.c
index 991523c5539e8d616a81508080a982c9543285a4..ccb04e23a3f211bebf515d870a31c23aadc57c25 100644 (file)
--- a/src/game_bd/main_bd.c
+++ b/src/game_bd/main_bd.c
@@ -187,3 +187,65 @@ boolean checkGameRunning_BD(void)
 {
   return (game_bd.game != NULL && game_bd.game->state_counter == GAME_INT_CAVE_RUNNING);
 }
+
+unsigned int InitEngineRandom_BD(int seed)
+{
+  if (seed == NEW_RANDOMIZE)
+  {
+    // get randomly selected seed to render the cave
+    seed = g_random_int_range(0, GD_CAVE_SEED_MAX);
+  }
+
+  game_bd.random_seed = seed;
+
+  return (unsigned int)seed;
+}
+
+
+// ============================================================================
+// graphics functions
+// ============================================================================
+
+void CoverScreen_BD(void)
+{
+  game_bd.cover_screen = FALSE;
+
+  if (setup.bd_skip_uncovering)
+    return;
+
+  game_bd.game->state_counter = GAME_INT_COVER_START;
+
+  // play game engine (with normal speed) until cave covered
+  while (game_bd.game->state_counter < GAME_INT_COVER_ALL + 1)
+  {
+    play_game_func(game_bd.game, 0);
+
+    RedrawPlayfield_BD(TRUE);
+
+    BlitScreenToBitmap_BD(backbuffer);
+
+    BackToFront();
+  }
+
+  // stop uncovering loop sound when not using native sound engine
+  FadeSounds();
+}
+
+void BlitScreenToBitmap_BD(Bitmap *target_bitmap)
+{
+  int xsize = SXSIZE;
+  int ysize = SYSIZE;
+  int full_xsize = native_bd_level.cave->w * TILESIZE_VAR;
+  int full_ysize = native_bd_level.cave->h * TILESIZE_VAR;
+  int sx = SX + (full_xsize < xsize ? (xsize - full_xsize) / 2 : 0);
+  int sy = SY + (full_ysize < ysize ? (ysize - full_ysize) / 2 : 0);
+  int sxsize = (full_xsize < xsize ? full_xsize : xsize);
+  int sysize = (full_ysize < ysize ? full_ysize : ysize);
+
+  BlitBitmap(gd_screen_bitmap, target_bitmap, 0, 0, sxsize, sysize, sx, sy);
+}
+
+void RedrawPlayfield_BD(boolean force_redraw)
+{
+  gd_drawcave(gd_screen_bitmap, game_bd.game, force_redraw);
+}