Fix deduplication check for spawning stars

Stay in level after star option revealed that the deduplication
checking I was doing previously is no longer a valid way to do it.
The old way would prevent a second star from spawning.

src/game/area.c

@@ -54,7 +54,8 @@ u8 gWarpTransBlue = 0;
 s16 gCurrSaveFileNum = 1;
 s16 gCurrLevelNum = LEVEL_MIN;
 
-u8 gSpawnedStarDefault = 0;
+u32 gSpawnedStarDefault[8] = { 0 };
+u8 gSpawnedStarDefaultCount = 0;
 u8 gSpawnedStarRedCoin = 0;
 u8 gSpawnedStarHidden = 0;
 

src/game/area.h

@@ -138,7 +138,8 @@ extern struct Area *gCurrentArea;
 extern s16 gCurrSaveFileNum;
 extern s16 gCurrLevelNum;
 
-extern u8 gSpawnedStarDefault;
+extern u32 gSpawnedStarDefault[];
+extern u8 gSpawnedStarDefaultCount;
 extern u8 gSpawnedStarRedCoin;
 extern u8 gSpawnedStarHidden;
 

src/game/behaviors/spawn_star.inc.c

@@ -127,12 +127,19 @@ struct Object *spawn_star(struct Object *sp30, f32 sp34, f32 sp38, f32 sp3C) {
 
 struct Object* spawn_default_star(f32 x, f32 y, f32 z) {
     if (sCurrPlayMode != PLAY_MODE_NORMAL && sCurrPlayMode != PLAY_MODE_PAUSED) { return NULL; }
-    if (gSpawnedStarDefault) { return NULL; }
-    struct Object *star;
     u32 behParams = o->oBehParams;
+
+    // de-duplication checking
+    for (int i = 0; i < gSpawnedStarDefaultCount; i++) {
+        if (gSpawnedStarDefault[i] == behParams) { return NULL; }
+    }
+    if (gSpawnedStarDefaultCount < 8) {
+        gSpawnedStarDefault[gSpawnedStarDefaultCount++] = behParams;
+    }
+
+    struct Object *star;
     star = spawn_star(star, x, y, z);
     star->oBehParams2ndByte = 0;
-    gSpawnedStarDefault = TRUE;
     network_send_spawn_star(star, 0, x, y, z, behParams);
     return star;
 }

src/game/level_update.c

@@ -1246,7 +1246,10 @@ s32 init_level(void) {
     sTransitionTimer = 0;
     D_80339EE0 = 0;
 
-    gSpawnedStarDefault = 0;
+    for (int i = 0; i < 8; i++) {
+        gSpawnedStarDefault[i] = 0;
+    }
+    gSpawnedStarDefaultCount = 0;
     gSpawnedStarRedCoin = 0;
     gSpawnedStarHidden = 0;