more progress. removed the unions because they have a bigger size than the foreign procs expects and that messes things up

obb.odin

@@ -0,0 +1,39 @@
+//+build android
+package android
+
+foreign import android "system:android"
+
+/** Flag for an obb file, returned by AObbInfo_getFlags(). */
+ObbFlags :: enum i32 {
+    OVERLAY = 0x0001,
+}
+
+/** {@link AObbInfo} is an opaque type representing information for obb storage. */
+AObbInfo :: struct{}
+
+foreign android {
+	/**
+	 * Scan an OBB and get information about it.
+	 */
+	AObbScanner_getObbInfo :: proc(filename: cstring) -> ^AObbInfo ---
+
+	/**
+	* Destroy the AObbInfo object. You must call this when finished with the object.
+	*/
+	AObbInfo_delete :: proc(obbInfo: ^AObbInfo) ---
+
+	/**
+	* Get the package name for the OBB.
+	*/
+	AObbInfo_getPackageName :: proc(obbInfo: ^AObbInfo) -> cstring ---
+
+	/**
+	* Get the version of an OBB file.
+	*/
+	AObbInfo_getVersion :: proc(obbInfo: ^AObbInfo) -> i32 ---
+
+	/**
+	* Get the flags of an OBB file.
+	*/
+	AObbInfo_getFlags :: proc(obbInfo: ^AObbInfo) -> ObbFlags ---
+}