{
    "actors": [
        {
            "name": "square_alt",
            "init": "square_alt_init",
            "tick": "square_alt_tick",
            "position": { "x": 0, "y": 0 },
            "facing": { "x": 0, "y": 1 },
            "mesh": {
                "shape": "quad",
                "color": { "r": 0.9, "g": 0.3, "b": 0.2, "a": 1.0 }
            }
        }
    ]
}