Chunk loading improvements

src/asset/asset.h

@@ -69,6 +69,14 @@ static asset_t ASSET;
  */
 errorret_t assetInit(void);
 
+/**
+ * Checks if an asset file exists.
+ * 
+ * @param filename The filename of the asset to check.
+ * @return true if the asset file exists, false otherwise.
+ */
+bool_t assetFileExists(const char_t *filename);
+
 /**
  * Loads an asset by its filename, the output type depends on the asset type.
  *