tmp

SirBob01 · Nov 27, 2023 · f117e32 · f117e32
1 parent d1cfe64
commit f117e32
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/src/ppu.c b/src/ppu.c
@@ -21,6 +21,11 @@ void create_ppu(ppu_t *ppu, ppu_bus_t *bus, interrupt_t *interrupt) {
     ppu->suppress_vbl = false;
     ppu->suppress_nmi = false;
 
+    ppu->sprite_index = 0;
+    ppu->sprite_m = 0;
+    ppu->sprite_count = 0;
+    ppu->sprite_count_latch = 0;
+
     create_event_tables_ppu(ppu);
 }
 
@@ -430,6 +435,7 @@ bool sprite_in_range_ppu(ppu_t *ppu, unsigned char y) {
 }
 
 void evaluate_sprites_ppu(ppu_t *ppu) {
+    // TODO: This algorithm is iffy
     if (ppu->sprite_index >= 64) {
         return;
     }
@@ -457,7 +463,9 @@ void evaluate_sprites_ppu(ppu_t *ppu) {
                 ppu->sprite_indices[ppu->sprite_count] = ppu->sprite_index;
                 ppu->sprite_m = 0;
                 ppu->sprite_index++;
-                ppu->sprite_count++;
+                if (ppu->sprite_count < 8) {
+                    ppu->sprite_count++;
+                }
             }
         }
     }