1 files changed, 114 insertions, 0 deletions
diff --git a/src/tile_types.c b/src/tile_types.c
new file mode 100644
index 0000000..cad63fa
--- /dev/null
+++ b/src/tile_types.c
@@ -0,0 +1,114 @@
+#include "global.h"
+#include "tile_types.h"
+
+#include "dungeon_global_data.h"
+
+const u8 gDungeonWaterType[] = {
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_WATER,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_WATER,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_LAVA,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_LAVA,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_LAVA,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_LAVA,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+    DUNGEON_WATER_TYPE_NONE,
+};
+
+bool8 IsTileGround(struct MapTile* tile)
+{
+    bool8 isGround = FALSE;
+    if (IsWaterTileset())
+    {
+        if (!(tile->tileType & (TILE_TYPE_FLOOR | TILE_TYPE_LIQUID)))
+        {
+            isGround = TRUE;
+        }
+    }
+    else if ((tile->tileType & (TILE_TYPE_FLOOR | TILE_TYPE_LIQUID)) != TILE_TYPE_LIQUID ||
+        gDungeonWaterType[gDungeonGlobalData->tileset] == DUNGEON_WATER_TYPE_LAVA)
+    {
+        isGround = TRUE;
+    }
+    return isGround;
+}
+
+bool8 IsWaterTileset()
+{
+    if (gDungeonGlobalData->tileset == 0 ||
+        gDungeonGlobalData->tileset == 0x31 ||
+        gDungeonGlobalData->tileset == 0x20 ||
+        gDungeonGlobalData->tileset == 0x21 ||
+        gDungeonGlobalData->tileset == 0x36)
+    {
+        return TRUE;
+    }
+    return FALSE;
+}