{ "init":
  { "pixiImages":
    [ "imgTux" ]
  },
  
  "model":
  { "stage":
    { "left":   0,
      "right":  "@right",
      "top":    0,
      "bottom": "@bottom"
    },

    "ball":
    { "r":   75,
      "x":   75,
      "y":   75,
      "vx": 400,
      "vy": 300
    }
  },

  "view":
  { "ball":
    { "image": "imgTux" }
  }
}