Extract dungeon maps

src/object/bird.c

@@ -374,6 +374,7 @@ void Bird_Type10(Entity* this) {
 void CreateBird(Entity* this) {
     Entity* birdEnt;
 
+    // EU only allows warp from the overworld. This prevents warping from the rooftop of the Wind Tribe's tower.
 #ifndef EU
     if (AreaAllowsWarp()) {
 #else

src/object/bush.c

@@ -108,7 +108,7 @@ void Bush_Action2SubAction2(BushEntity* this) {
     if (this->unk_72 == 0) {
         this->unk_72 = 1;
         super->spriteOffsetX = 0;
-        sub_0807B9B8(this->unk_70, COORD_TO_TILE(super), super->collisionLayer);
+        SetMetaTileByIndex(this->unk_70, COORD_TO_TILE(super), super->collisionLayer);
     }
     if (((gPlayerState.field_0x1c & 0xf) != 1) || ((super->contactFlags & 0x7f) != 0x13)) {
         Bush_Action2SubAction5(this);

src/object/button.c

@@ -208,35 +208,36 @@ extern u16 gMapDataTopSpecial[0x2000];
 extern u16 gMapDataBottomSpecial[];
 
 void sub_08081E6C(Entity* this) {
-    u32 r4;
+    u32 tileType;
     LayerStruct* r1;
     u16* tmp2;
     u16* tmp;
     u16* tmp3;
-    u32 r6 = this->field_0x74.HWORD;
-    u32 r5 = this->collisionLayer;
-    u32 tile = GetTileType(r6, r5);
+    u32 tilePosition = this->field_0x74.HWORD;
+    u32 layer = this->collisionLayer;
+    u32 tile = GetTileType(tilePosition, layer);
 
     if (tile < 0x4000)
         return;
-    r1 = GetLayerByIndex(r5);
-    r4 = (this->type == 0 ? 0x7a : 0x78);
+    r1 = GetLayerByIndex(layer);
+    tileType = (this->type == 0 ? 0x7a : 0x78);
     tmp = r1->metatiles;
-    tmp = tmp + (r1->unkData2[r4] << 2);
-    tmp2 = (r5 == 2 ? gMapDataTopSpecial : gMapDataBottomSpecial);
-    tmp2 += (((0x3f & r6) << 1) + ((0xfc0 & r6) << 2));
+    tmp = tmp + (r1->unkData2[tileType] << 2);
+    tmp2 = (layer == 2 ? gMapDataTopSpecial : gMapDataBottomSpecial);
+    tmp2 += (((0x3f & tilePosition) << 1) + ((0xfc0 & tilePosition) << 2));
     if (sub_08081F00((u32*)tmp2, (u32*)tmp))
         return;
-    SetTileType(r4, r6, r5);
-    SetTile(tile, r6, r5);
+    SetTileType(tileType, tilePosition, layer);
+    SetTile(tile, tilePosition, layer);
 }
 
-u32 sub_08081F00(u32* unk1, u32* unk2) {
-    if (*unk1 != *unk2)
-        return 0;
-    if (unk1[0x40] != unk2[1])
-        return 0;
-    return 1;
+// Are the two tiles already set to the correct one
+bool32 sub_08081F00(u32* screenblock, u32* metatileList) {
+    if (screenblock[0]  != metatileList[0])
+        return FALSE;
+    if (screenblock[0x40] != metatileList[1])
+        return FALSE;
+    return TRUE;
 }
 
 void sub_08081F24(Entity* this) {

src/object/octorokBossObject.c

@@ -340,7 +340,7 @@ bool32 sub_0809A6F8(u32 param_1, u32 param_2, u32 param_3, u32 param_4) {
     if (sub_0809A758(param_1, param_2) != 0) {
         if (gUnk_081238A0[param_3] != 0) {
             if ((param_4 & 1) != 0) {
-                sub_0807B9B8(gUnk_081238A0[param_3], (param_1 >> 4 & 0x3f) | (param_2 >> 4 & 0x3f) << 6, 1);
+                SetMetaTileByIndex(gUnk_081238A0[param_3], (param_1 >> 4 & 0x3f) | (param_2 >> 4 & 0x3f) << 6, 1);
             } else {
                 RestorePrevTileEntity((param_1 >> 4 & 0x3f) | (param_2 >> 4 & 0x3f) << 6, 1);
             }

src/object/pushableFurniture.c

@@ -494,9 +494,9 @@ void sub_08090094(PushableFurnitureEntity* this, u32 param_2, u32 tilePos) {
 }
 
 void sub_08090254(PushableFurnitureEntity* this) {
-    sub_0807B9B8(this->unk_74, this->unk_70, super->collisionLayer);
+    SetMetaTileByIndex(this->unk_74, this->unk_70, super->collisionLayer);
     if (this->unk_80 == 1) {
-        sub_0807B9B8(this->unk_76, this->unk_72, super->collisionLayer);
+        SetMetaTileByIndex(this->unk_76, this->unk_72, super->collisionLayer);
     }
 }
 

src/object/pushableGrave.c

@@ -157,16 +157,16 @@ bool32 sub_0809785C(PushableGraveEntity* this) {
                 super->direction = 0;
                 super->speed = 0x40;
                 tilePosition = this->unk_68;
-                sub_0807B9B8(this->unk_72, tilePosition, super->collisionLayer);
+                SetMetaTileByIndex(this->unk_72, tilePosition, super->collisionLayer);
                 if (super->type2 == 2) {
-                    sub_0807B9B8(this->unk_6a, tilePosition - 0x41, super->collisionLayer);
-                    sub_0807B9B8(this->unk_6c, tilePosition - 0x40, super->collisionLayer);
-                    sub_0807B9B8(this->unk_6e, tilePosition - 0x3f, super->collisionLayer);
-                    sub_0807B9B8(this->unk_70, tilePosition - 1, super->collisionLayer);
-                    sub_0807B9B8(this->unk_74, tilePosition + 1, super->collisionLayer);
-                    sub_0807B9B8(this->unk_76, tilePosition + 0x3f, super->collisionLayer);
-                    sub_0807B9B8(this->unk_78, tilePosition + 0x40, super->collisionLayer);
-                    sub_0807B9B8(this->unk_7a, tilePosition + 0x41, super->collisionLayer);
+                    SetMetaTileByIndex(this->unk_6a, tilePosition - 0x41, super->collisionLayer);
+                    SetMetaTileByIndex(this->unk_6c, tilePosition - 0x40, super->collisionLayer);
+                    SetMetaTileByIndex(this->unk_6e, tilePosition - 0x3f, super->collisionLayer);
+                    SetMetaTileByIndex(this->unk_70, tilePosition - 1, super->collisionLayer);
+                    SetMetaTileByIndex(this->unk_74, tilePosition + 1, super->collisionLayer);
+                    SetMetaTileByIndex(this->unk_76, tilePosition + 0x3f, super->collisionLayer);
+                    SetMetaTileByIndex(this->unk_78, tilePosition + 0x40, super->collisionLayer);
+                    SetMetaTileByIndex(this->unk_7a, tilePosition + 0x41, super->collisionLayer);
                 }
                 SoundReq(SFX_10F);
                 return TRUE;