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Fix GameBoy VRAM shared memory overlap bug between background tiles and stamina UI sprites

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This commit is contained in:
Matteo Benedetto
2026-06-23 20:10:27 +02:00
parent 1b0e1a057b
commit 93deb35f86
2 changed files with 4 additions and 2 deletions
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src/engine.c
+2 -1
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@@ -95,7 +95,8 @@ void engine_init(void) {
set_sprite_data(player_TILE_COUNT, enemy_TILE_COUNT, enemy_tiles); set_sprite_data(player_TILE_COUNT, enemy_TILE_COUNT, enemy_tiles);
set_sprite_data(player_TILE_COUNT + enemy_TILE_COUNT, gameover_TILE_COUNT, gameover_tiles); set_sprite_data(player_TILE_COUNT + enemy_TILE_COUNT, gameover_TILE_COUNT, gameover_tiles);
set_sprite_data(player_TILE_COUNT + enemy_TILE_COUNT + gameover_TILE_COUNT, victory_TILE_COUNT, victory_tiles); set_sprite_data(player_TILE_COUNT + enemy_TILE_COUNT + gameover_TILE_COUNT, victory_TILE_COUNT, victory_tiles);
set_sprite_data(player_TILE_COUNT + enemy_TILE_COUNT + gameover_TILE_COUNT + victory_TILE_COUNT, stamina_TILE_COUNT * 2, stamina_tiles); // Load stamina_tiles AFTER the background tiles to prevent VRAM overlap in the shared block (indices > 127)
set_sprite_data(tiles_TILE_COUNT, stamina_TILE_COUNT * 2, stamina_tiles);
// SPAWN DEL GIOCATORE // SPAWN DEL GIOCATORE
player_lx = 1; player_lx = 1;
src/render.c
+2 -1
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@@ -57,7 +57,8 @@ void update_stamina_display(void) {
uint8_t num_pixels = temp / 100; uint8_t num_pixels = temp / 100;
// Offset di base nella VRAM dove sono caricati i tile della stamina // Offset di base nella VRAM dove sono caricati i tile della stamina
uint8_t base_tile = player_TILE_COUNT + enemy_TILE_COUNT + gameover_TILE_COUNT + victory_TILE_COUNT; // 44 // Caricato a partire da tiles_TILE_COUNT per non sovrascrivere la VRAM condivisa (>=128)
uint8_t base_tile = tiles_TILE_COUNT;
for (uint8_t i = 0; i < 5; i++) { for (uint8_t i = 0; i < 5; i++) {
uint8_t tile_idx; uint8_t tile_idx;