demo_capture = {
   "demoIndex": 2,
   "demoVersion": "2.c",
   "date": "4/25/2019, 11:30:34 AM",
   "gravity": false,
   "comSelection": true,
   "globalCompositeOperation": "source-over",
   "wallMapData": {
      "wall1": {
         "name": "wall1",
         "position_2d_m": {
            "x": 3,
            "y": 6
         },
         "fence": true,
         "velocity_2d_mps": {
            "x": 0,
            "y": 0
         },
         "angle_r": 0,
         "angularSpeed_rps": 0,
         "half_width_m": 3,
         "half_height_m": 0.05
      },
      "wall2": {
         "name": "wall2",
         "position_2d_m": {
            "x": 3,
            "y": 0
         },
         "fence": true,
         "velocity_2d_mps": {
            "x": 0,
            "y": 0
         },
         "angle_r": 0,
         "angularSpeed_rps": 0,
         "half_width_m": 3,
         "half_height_m": 0.05
      },
      "wall3": {
         "name": "wall3",
         "position_2d_m": {
            "x": 0,
            "y": 3
         },
         "fence": true,
         "velocity_2d_mps": {
            "x": 0,
            "y": 0
         },
         "angle_r": 0,
         "angularSpeed_rps": 0,
         "half_width_m": 0.05,
         "half_height_m": 3
      },
      "wall4": {
         "name": "wall4",
         "position_2d_m": {
            "x": 6,
            "y": 3
         },
         "fence": true,
         "velocity_2d_mps": {
            "x": 0,
            "y": 0
         },
         "angle_r": 0,
         "angularSpeed_rps": 0,
         "half_width_m": 0.05,
         "half_height_m": 3
      }
   },
   "puckMapData": {
      "puck1": {
         "bullet": false,
         "atLeastOneHit": false,
         "jello": false,
         "clientName": null,
         "name": "puck1",
         "position_2d_m": {
            "x": 1.0,
            "y": 1.0
         },
         "velocity_2d_mps": {
            "x": 1,
            "y": 0
         },
         "color": "blue",
         "shape": "circle",
         "colorSource": true,
         "density": 1.5,
         "linDamp": 0,
         "angDamp": 0,
         "hitLimit": 10,
         "createTail": true,
         "tail": {
            "propSpeed_ppf_px": 3,
            "length_limit": 25,
            "rainbow": false,
            "machSwitch": true,
            "machValue": 1.0
         },
         "groupIndex": 0,
         "categoryBits": 1,
         "maskBits": 65535,
         "angle_r": -1.275719010255957e-12,
         "angularSpeed_rps": 0,
         "angleLine": false,
         "borderWidth_px": 3,
         "restitution": 1,
         "restitution_fixed": false,
         "friction": 0,
         "friction_fixed": false,
         "radius_m": 0.2,
         "aspectR": 1,
         "half_height_m": null,
         "half_width_m": null,
         "navSpringName": null,
         "pinName": null
      },
      "puck2": {
         "bullet": false,
         "atLeastOneHit": false,
         "jello": false,
         "clientName": null,
         "name": "puck2",
         "position_2d_m": {
            "x": 1.0,
            "y": 3.0
         },
         "velocity_2d_mps": {
            "x": 1,
            "y": 0
         },
         "color": "blue",
         "shape": "circle",
         "colorSource": true,
         "density": 1.5,
         "linDamp": 0,
         "angDamp": 0,
         "hitLimit": 10,
         "createTail": true,
         "tail": {
            "propSpeed_ppf_px": 3,
            "length_limit": 25,
            "rainbow": false,
            "machSwitch": true,
            "machValue": 1.41
         },
         "groupIndex": 0,
         "categoryBits": 1,
         "maskBits": 65535,
         "angle_r": -1.275719010255957e-12,
         "angularSpeed_rps": 0,
         "angleLine": false,
         "borderWidth_px": 3,
         "restitution": 1,
         "restitution_fixed": false,
         "friction": 0,
         "friction_fixed": false,
         "radius_m": 0.2,
         "aspectR": 1,
         "half_height_m": null,
         "half_width_m": null,
         "navSpringName": null,
         "pinName": null
      },
      "puck3": {
         "bullet": false,
         "atLeastOneHit": false,
         "jello": false,
         "clientName": null,
         "name": "puck3",
         "position_2d_m": {
            "x": 1.0,
            "y": 5.0
         },
         "velocity_2d_mps": {
            "x": 1,
            "y": 0
         },
         "color": "blue",
         "shape": "circle",
         "colorSource": true,
         "density": 1.5,
         "linDamp": 0,
         "angDamp": 0,
         "hitLimit": 10,
         "createTail": true,
         "tail": {
            "propSpeed_ppf_px": 3,
            "length_limit": 25,
            "rainbow": false,
            "machSwitch": true,
            "machValue": 2.00
         },
         "groupIndex": 0,
         "categoryBits": 1,
         "maskBits": 65535,
         "angle_r": -1.2157430992053872e-12,
         "angularSpeed_rps": 0,
         "angleLine": false,
         "borderWidth_px": 3,
         "restitution": 1,
         "restitution_fixed": false,
         "friction": 0,
         "friction_fixed": false,
         "radius_m": 0.2,
         "aspectR": 1,
         "half_height_m": null,
         "half_width_m": null,
         "navSpringName": null,
         "pinName": null
      }
   },
   "pinMapData": {},
   "springMapData": {},
   "startingPosAndVels": null,
   "clients": {
      "local": {
         "color": "tomato",
         "name": "local",
         "player": true,
         "nickName": null,
         "NPC_pin_timer_s": 0,
         "NPC_pin_timer_limit_s": 5
      }
   }
}