void OnInstalledObjectCreated(InstalledObject io_data)
{
// Create a visual GameObject to display the InstalledObject
// Place that GameObject in the correct position
// Add a SpriteRenderer
// Registers the necessary callback functions,
// and Stashes the relationship between the InstalledObject and its GameObject in the local map_InstalledObject2GameObject
GameObject io_go = new GameObject();
io_go.name = io_data.ObjectType + "_" + io_data.Tiles.First().X + "_" + io_data.Tiles.First().Y;
io_go.transform.position = new Vector3(io_data.Tiles.First().X, io_data.Tiles.First().Y);
io_go.transform.SetParent(this.transform, true);
io_go.AddComponent <SpriteRenderer>().sprite = map_SpriteName2Sprite ["sp_IO_Trees"];
io_data.RegisterCB_OnStateChanged(OnInstalledObjectStateChanged);
map_InstalledObject2GameObject.Add(io_data, io_go);
}