{ "canvas":
  { "width":  400,
    "height": 300
  },

  "game":
  { "fps": 50
  },
  
  "sprites":
  [{"type":     "bird",
    "number":    [5, 10],
    "url":       "medium/bird.png",
    "fps":       [10, 20],
    "pos":       { "x": [10, 390], "y": [10, 290] },
    "v":         { "x": [30,  80], "y": [30,  80] },
    "size":      { "width": 70, "height": 73 },
    "start":     { "x": 0, "y": 0 },
    "framesNr":  4,
    "scale":     [0.2, 0.7],
    "precision": 1,     
    "sequence":  [0, 1, 2, 3, 2, 1]
   },
   {"type":      "bird2",
    "number":    10,
    "url":       "medium/bird.png",
    "fps":       [5, 10],
    "pos":       { "x": [10, 390], "y": [10, 290] },
    "v":         { "x": [30,  80], "y": [30,  80] },
    "size":      { "width": 70,  "height": 73 },
    "start":     { "x": 70, "y": 0 },
    "framesNr":  2,
    "scale":     [0.2, 0.7],
    "precision": 2,
    "sequence":  [0, 1]
   }
  ]
}