[
  {
    "chan": "gps:agents",
    "events": [
      {
        "eventName": "moving",
        "mappings": [
          {
            "id": "aid",
            "assign": {
              "position.x": "coords.x",
              "position.z": "coords.y"
            },
            "animate": true
          }
        ]
      },
      {
        "eventName": "rotating",
        "mappings": [
          {
            "id": "aid",
            "assign": {
              "r": "rotangle"
            },
            "animate": true
          }
        ]
      }
    ]
  },
  {
    "chan": "agent:*",
    "events": [
      {
        "eventName": "aging",
        "mappings": [
          {
            "id": "aid",
            "assign": {
              "fill": {
                "arguments": ["age"],
                "transformer": "rgb(${Math.round(255 * age / 10)},0,${Math.round(255 * (1 - age / 10))})"
              }
            }
          }
        ]
      }
    ]
  }
]