CocosGameFrameWork/settings/v2/packages/project.json

{
  "__version__": "1.0.6",
  "custom_joint_texture_layouts": [],
  "physics": {
    "collisionGroups": [
      {
        "index": 1,
        "name": "Enemy"
      },
      {
        "index": 2,
        "name": "Role"
      },
      {
        "index": 3,
        "name": "Bullet"
      },
      {
        "index": 4,
        "name": "Tower"
      }
    ],
    "collisionMatrix": {
      "0": 1,
      "1": 24,
      "2": 24,
      "3": 22,
      "4": 14
    }
  }
}