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- [FIX] La paleta dels sprites es comprobava on no tocaba

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- [FIX] Els sprites de 16x8 repetien el primer tile
- [FIX] El flip vertical dels sprites era incorrecte
This commit is contained in:
Raimon Zamora
2025-01-28 10:46:04 +01:00
parent 974251540d
commit a64a18d1be
1 changed files with 3 additions and 3 deletions
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6
gbscreen.cpp
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@@ -245,10 +245,10 @@ namespace gbscreen
obj=0;
while (obj_list[obj] != 255) {
oam_entry_t *o = &oam[obj_list[obj]];
const uint8_t ly = uint8_t(LY-o->y) & 0x7;
const uint8_t ly = uint8_t(LY-o->y) & 0xf;
uint16_t tile = height==8 ? o->tile : o->tile & 0xFE; // si es dos tiles de alt, el primer sempre comença en numero parell
uint8_t yflip = o->attr&0x40 ? 8-ly : ly; // està invertit verticalment?
uint8_t yflip = o->attr&0x40 ? (height-1)-ly : ly; // està invertit verticalment?
uint16_t tile_address = 0x8000 + (tile<<4) + (yflip*2);
uint8_t a = mem::readMem(tile_address);
@@ -262,7 +262,7 @@ namespace gbscreen
const uint8_t ppos = 1 << ( o->attr&0x20 ? i : 7-i);
const uint8_t val = (a&ppos ? 1 : 0) + (b&ppos ? 2 : 0 ); // agafem el pixel que toca
if (val) { // Si el pixel no es transparent...
const uint8_t color = (OBP[(LCDC>>4)&1] >> (val*2)) & 0x3;
const uint8_t color = (OBP[(o->attr>>4)&1] >> (val*2)) & 0x3;
pixels[o->x+i-8] = color | o->attr&0x80;; // el pintem al buffer, amb el flag de prioritat respecte al BKG
x_pos[o->x+i-8] = o->x; // I apuntem la seua x per a comparar després
}