demo_capture = {
   "demoIndex": 5,
   "demoVersion": "5.c",
   "date": "5/14/2020, 1:30:27 PM",
   "canvasDimensions": {
      "width": 600,
      "height": 600
   },
   "gravity": true,
   "comSelection": true,
   "EpL": {
      "display": false,
      "reportType": "EpL",
      "COM": false,
      "angularAxis_2d_m": {
         "x": 3.02,
         "y": 4.18
      }
   },
   "wallMapData": {},
   "puckMapData": {
      "puck2": {
         "bullet": false,
         "jello": false,
         "clientName": null,
         "name": "puck2",
         "position_2d_m": {
            "x": 3.0177463814558467,
            "y": 2.053860144398522
         },
         "velocity_2d_mps": {
            "x": 0.09784568805752082,
            "y": -3.061409530035801
         },
         "color": "DarkSlateGray",
         "shape": "circle",
         "colorSource": false,
         "density": 1.5,
         "linDamp": 0,
         "hitLimit": 10,
         "createdByClient": null,
         "createTail": false,
         "tailPars": null,
         "groupIndex": 0,
         "categoryBits": 1,
         "maskBits": 65535,
         "angle_r": 0,
         "angularSpeed_rps": 0,
         "borderWidth_px": 3,
         "restitution": 1,
         "restitution_fixed": false,
         "friction": 0,
         "friction_fixed": false,
         "radius_m": 0.25,
         "aspectR": 1,
         "half_height_m": null,
         "half_width_m": null,
         "springName": null,
         "pinName": null
      }
   },
   "pinMapData": {
      "pin1": {
         "name": "pin1",
         "position_2d_m": {
            "x": 3.02,
            "y": 4.18
         },
         "radius_px": 6,
         "categoryBits": 0,
         "maskBits": 0,
         "velocity_2d_mps": {
            "x": 0,
            "y": 0
         },
         "deleted": false,
         "NPC": false,
         "nextPinName": null,
         "previousPinName": null,
         "color": "blue",
         "borderColor": "gray"
      }
   },
   "springMapData": {
      "s1": {
         "name": "s1",
         "color": "yellow",
         "length_m": 1.2978894249584958,
         "strength_Npm": 5,
         "unstretched_width_m": 0.05,
         "drag_c": 0,
         "damper_Ns2pm2": 0,
         "navigationForNPC": false,
         "p1_name": "pin1",
         "p2_name": "puck2"
      }
   },
   "startingPosAndVels": null,
   "clients": {
      "local": {
         "color": "red",
         "name": "local",
         "NPC_pin_timer_s": 0,
         "NPC_pin_timer_limit_s": 5
      }
   },
   "piCalcs": {}
}