question: public void releaseMap ( ) { if ( tiles != null ) { tiles = null ; } if ( atlasIndexArray_ != null ) { atlasIndexArray_ = null ; } }
target:  dealloc the map that contains the tile position from memory. Unless you want to know at runtime the tiles positions, you can safely call this method. If you are going to call [layer tileGIDAt:] then, don't release the map