{
    "rocket": {
        "x": "100",
        "y": "100",
        "r": "10",
        "dirx":"0",
        "diry":"-1",
        "vx": "0",
        "vy": "0",
        "child": {},
        "link":{
            "node1":{
                "x": "125",
                "y": "125",
                "r": "2",
                "dirx":"0",
                "diry":"-1",
                "vx": "0",
                "vy": "0",
                "child": {},        
                "link":{
                
                    "node2":{
                        "x": "135",
                        "y": "135",
                        "r": "2",
                        "dirx":"0",
                        "diry":"-1",
                        "vx": "0",
                        "vy": "0",
                        "child": {},        
                        "link":{},
                        "collisionDetection": "alwaysTrue",
                        "effect": [],
                        "tag": ["movableBehavior","fallingBehavior","solid"]
                    }
                
                },
                "collisionDetection": "alwaysTrue",
                "effect": [],
                "tag": ["movableBehavior","fallingBehavior","solid"]
            }
        },
        "collisionDetection": "alwaysTrue",
        "effect": [],
        "tag": [
            "playableBehavior",
            "movableBehavior",
            "fallingBehavior",
            "vanishableLinkBehavior",
            "shootingBehavior",
            "solid"
        ]
    }
}