add definition of CCArray::exchangeObject on mac

loader/src/cocos2d-ext/MacOS.cpp

@@ -0,0 +1,25 @@
+#include <Geode/DefaultInclude.hpp>
+
+#ifdef GEODE_IS_MACOS
+
+#include <cocos2d.h>
+using namespace cocos2d;
+
+// https://github.com/cocos2d/cocos2d-x/blob/cocos2d-x-2.2.3/cocos2dx/cocoa/CCArray.cpp
+void CCArray::exchangeObject(CCObject* object1, CCObject* object2) {
+    unsigned int index1 = ccArrayGetIndexOfObject(data, object1);
+    if(index1 == UINT_MAX)
+    {
+        return;
+    }
+
+    unsigned int index2 = ccArrayGetIndexOfObject(data, object2);
+    if(index2 == UINT_MAX)
+    {
+        return;
+    }
+
+    ccArraySwapObjectsAtIndexes(data, index1, index2);
+}
+
+#endif