Time is better.

src/rpg/world/chunk.h

@@ -16,4 +16,18 @@
 typedef struct chunk_s {
   int16_t x, y, z;
   tile_t tiles[CHUNK_TILE_COUNT];
-} chunk_t;
+} chunk_t;
+
+/**
+ * Gets the tile index for a tile position within a chunk.
+ *
+ * @param relativeTileX The X coordinate of the tile within the chunk.
+ * @param relativeTileY The Y coordinate of the tile within the chunk.
+ * @param relativeTileZ The Z coordinate of the tile within the chunk.
+ * @return The tile index within the chunk.
+ */
+uint32_t chunkGetTileIndex(
+  const uint8_t relativeTileX,
+  const uint8_t relativeTileY,
+  const uint8_t relativeTileZ
+);