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sprite priority fix: http://www.mametesters.org/view.php?id=2841

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This commit is contained in:
Michaël Banaan Ananas 2011-03-24 00:54:18 +00:00
parent eae55a88b5
commit 6964d8808b
1 changed files with 5 additions and 3 deletions
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8
src/mame/video/mappy.c
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@ -553,13 +553,15 @@ SCREEN_UPDATE( superpac )
/* Redraw the high priority characters */
tilemap_draw(bitmap,cliprect,state->bg_tilemap,1,0);
/* sprite color 0 still has priority over that (ghost eyes in Pac 'n Pal) */
/* some sprites still have priority over that (ghost eyes in Pac 'n Pal) */
for (y = 0;y < sprite_bitmap->height;y++)
{
for (x = 0;x < sprite_bitmap->width;x++)
{
if (*BITMAP_ADDR16(sprite_bitmap, y, x) == 0)
*BITMAP_ADDR16(bitmap, y, x) = 0;
// bg colortable contents and sprite color bitmask suggests that priority is determined by pen 2 equality comparison between sprite colortable and bg colortable
int spr_pen = *BITMAP_ADDR16(sprite_bitmap, y, x);
if (spr_pen != 15 && spr_pen & 2 && colortable_palette_get_color(screen->machine->colortable,colortable_entry_get_value(screen->machine->colortable, spr_pen & 0x1fe)) == colortable_palette_get_color(screen->machine->colortable,colortable_entry_get_value(screen->machine->colortable, spr_pen & 0x0fe)))
*BITMAP_ADDR16(bitmap, y, x) = spr_pen;
}
}
return 0;