fixed drawing of crumbled borders for 64x64 sized game graphics

[rocksndiamonds.git] / src / game_em / graphics.c

diff --git a/src/game_em/graphics.c b/src/game_em/graphics.c
index 860cb36513544eaa4972a6d29e7569d18d5ac99c..54711e9536026e5bff44b1e90372c6452a212506 100644 (file)
--- a/src/game_em/graphics.c
+++ b/src/game_em/graphics.c
@@ -36,12 +36,11 @@ int screen_x, screen_y;                     /* current scroll position */
 /* tiles currently on screen */
 static int screentiles[MAX_PLAYFIELD_HEIGHT + 2][MAX_PLAYFIELD_WIDTH + 2];
 static int crumbled_state[MAX_PLAYFIELD_HEIGHT + 2][MAX_PLAYFIELD_WIDTH + 2];
-static boolean redraw[MAX_PLAYFIELD_WIDTH + 2][MAX_PLAYFIELD_HEIGHT + 2];
-
-/* copy the entire screen to the window at the scroll position */
 
 void BlitScreenToBitmap_EM(Bitmap *target_bitmap)
 {
+  /* blit all (up to four) parts of the scroll buffer to the target bitmap */
+
   int x = screen_x % (MAX_BUF_XSIZE * TILEX);
   int y = screen_y % (MAX_BUF_YSIZE * TILEY);
   int sx, sy, sxsize, sysize;
@@ -97,73 +96,7 @@ void BlitScreenToBitmap_EM(Bitmap *target_bitmap)
 
 void BackToFront_EM(void)
 {
-  static int screen_x_last = -1, screen_y_last = -1;
-  static boolean scrolling_last = FALSE;
-  int left = screen_x / TILEX;
-  int top  = screen_y / TILEY;
-  boolean scrolling = (screen_x != screen_x_last || screen_y != screen_y_last);
-  int x, y;
-
-  if (redraw_tiles > REDRAWTILES_THRESHOLD || scrolling || scrolling_last)
-  {
-    /* blit all (up to four) parts of the scroll buffer to the backbuffer */
-    BlitScreenToBitmap_EM(backbuffer);
-
-    /* blit the completely updated backbuffer to the window (in one blit) */
-    BlitBitmap(backbuffer, window, SX, SY, SXSIZE, SYSIZE, SX, SY);
-  }
-  else
-  {
-    boolean half_shifted_x = (screen_x % TILEX != 0);
-    boolean half_shifted_y = (screen_y % TILEY != 0);
-
-    int sx, sy;
-    int xsize = SXSIZE;
-    int ysize = SYSIZE;
-    int full_xsize = lev.width  * TILEX;
-    int full_ysize = lev.height * TILEY;
-
-    sx = SX + (full_xsize < xsize ? (xsize - full_xsize) / 2 : 0);
-    sy = SY + (full_ysize < ysize ? (ysize - full_ysize) / 2 : 0);
-
-    int x1 = 0, x2 = SCR_FIELDX - (half_shifted_x ? 0 : 1);
-    int y1 = 0, y2 = SCR_FIELDY - (half_shifted_y ? 0 : 1);
-    int scroll_xoffset = (half_shifted_x ? TILEX / 2 : 0);
-    int scroll_yoffset = (half_shifted_y ? TILEY / 2 : 0);
-
-    InitGfxClipRegion(TRUE, SX, SY, SXSIZE, SYSIZE);
-
-    for (x = x1; x <= x2; x++)
-    {
-      for (y = y1; y <= y2; y++)
-      {
-       int xx = (left + x) % MAX_BUF_XSIZE;
-       int yy = (top  + y) % MAX_BUF_YSIZE;
-
-       if (redraw[xx][yy])
-         BlitBitmap(screenBitmap, window,
-                    xx * TILEX, yy * TILEY, TILEX, TILEY,
-                    sx + x * TILEX - scroll_xoffset,
-                    sy + y * TILEY - scroll_yoffset);
-      }
-    }
-
-    InitGfxClipRegion(FALSE, -1, -1, -1, -1);
-  }
-
-  for (x = 0; x < MAX_BUF_XSIZE; x++)
-    for (y = 0; y < MAX_BUF_YSIZE; y++)
-      redraw[x][y] = FALSE;
-  redraw_tiles = 0;
-
-  screen_x_last = screen_x;
-  screen_y_last = screen_y;
-  scrolling_last = scrolling;
-}
-
-void blitscreen(void)
-{
-  BackToFront_EM();
+  BlitBitmap(backbuffer, window, SX, SY, SXSIZE, SYSIZE, SX, SY);
 }
 
 static struct GraphicInfo_EM *getObjectGraphic(int x, int y)
@@ -241,7 +174,8 @@ static void DrawLevelFieldCrumbled_EM(int x, int y, int sx, int sy,
 
   g = getObjectGraphic(x, y);
 
-  crumbled_border_size = g->crumbled_border_size * TILESIZE_VAR / TILESIZE;
+  crumbled_border_size =
+    g->crumbled_border_size * TILESIZE_VAR / g->crumbled_tile_size;
 
   for (i = 0; i < 4; i++)
   {
@@ -406,9 +340,6 @@ static void animscreen(void)
 
        screentiles[sy][sx] = obj;
        crumbled_state[sy][sx] = crm;
-
-       redraw[sx][sy] = TRUE;
-       redraw_tiles++;
       }
     }
   }
@@ -479,11 +410,6 @@ static void blitplayer(struct PLAYER *ply)
     /* redraw screen tiles in the next frame (player may have left the tiles) */
     screentiles[old_sy][old_sx] = -1;
     screentiles[new_sy][new_sx] = -1;
-
-    /* mark screen tiles as dirty (force screen refresh with changed content) */
-    redraw[old_sx][old_sy] = TRUE;
-    redraw[new_sx][new_sy] = TRUE;
-    redraw_tiles += 2;
   }
 }
 
@@ -727,7 +653,8 @@ void RedrawPlayfield_EM(boolean force_redraw)
       for (i = 0; i < MAX_PLAYERS; i++)
        blitplayer(&ply[i]);
 
-      blitscreen();
+      BlitScreenToBitmap_EM(backbuffer);
+      BackToFront_EM();
 
       Delay(wait_delay_value);
 
@@ -740,7 +667,8 @@ void RedrawPlayfield_EM(boolean force_redraw)
       for (i = 0; i < MAX_PLAYERS; i++)
        blitplayer(&ply[i]);
 
-      blitscreen();
+      BlitScreenToBitmap_EM(backbuffer);
+      BackToFront_EM();
 
       Delay(wait_delay_value);
     }
@@ -829,8 +757,3 @@ void RedrawPlayfield_EM(boolean force_redraw)
   for (i = 0; i < MAX_PLAYERS; i++)
     blitplayer(&ply[i]);
 }
-
-void game_animscreen(void)
-{
-  RedrawPlayfield_EM(FALSE);
-}