object.updateMatrixWorld() returns error

Questions
,
1

I am attempting to calculate collisions between two objects with bounding boxes as given by Profile - calrk - three.js forum.
My function is as follows:


function detectCollisionCubes(object1, object2) {

    object1.geometry.computeBoundingBox(); //not needed if its already calculated

    object2.geometry.computeBoundingBox();

    object1.updateMatrixWorld();

    object2.updateMatrixWorld();

    var box1 = object1.geometry.boundingBox.clone();

    box1.applyMatrix4(object1.matrixWorld);

    var box2 = object2.geometry.boundingBox.clone();

    box2.applyMatrix4(object2.matrixWorld);

    if (box1.intersectsBox(box2)){

        console.log("flagged")

        setupLevel(2)

 } 

}

However, when I attempt to call updateMatrixWorld(); on my player (object one), it returns
Uncaught TypeError: object1.updateMatrixWorld is not a function
I have logged the object one and object 2 classes to console, which return

1. Player {direction: Vector3, camera: PerspectiveCamera, geometry: BoxGeometry, material: MeshBasicMaterial, playerModel: Mesh, …}

  1. camera: PerspectiveCamera {uuid: "FD7868AB-8CF6-43C6-877D-5CE94ED64808", name: "", type: "PerspectiveCamera", parent: null, children: Array(0), …}
  2. controls: PointerLockControls {domElement: body, isLocked: false, minPolarAngle: 0, maxPolarAngle: 3.141592653589793, connect: ƒ, …}
  3. direction: Vector3 {x: 0.2549525589972969, y: 0.7968116683391837, z: 0.547805036358061}
  4. geometry: BoxGeometry {uuid: "293D1574-B78B-4CA0-97DA-3AF8FA4D41A5", name: "", type: "BoxGeometry", index: Uint16BufferAttribute, attributes: {…}, …}
  5. material: MeshBasicMaterial {uuid: "D0EBDBB5-0923-4595-8997-6D8571C93FA8", name: "", type: "MeshBasicMaterial", fog: true, blending: 1, …}
  6. playerModel: Mesh {uuid: "5125B185-7FF7-4692-869F-AC94C8BD22E2", name: "", type: "Mesh", parent: null, children: Array(0), …}
  7. __proto__: Object

and

1. Goal {geometry: BoxGeometry, material: MeshBasicMaterial, mesh: Mesh, type: 1}

  1. geometry: BoxGeometry {uuid: "52F08CA0-3400-45AC-A28E-ED1D128ACEB8", name: "", type: "BoxGeometry", index: Uint16BufferAttribute, attributes: {…}, …}
  2. material: MeshBasicMaterial {uuid: "D5800CCE-7FCE-4A36-9E4C-07B7DB5F046C", name: "", type: "MeshBasicMaterial", fog: true, blending: 1, …}
  3. mesh: Mesh {uuid: "26A13948-6526-4A16-A2B0-606F1C5A3377", name: "", type: "Mesh", parent: Scene, children: Array(0), …}
  4. type: 1
  5. __proto__: Object

As both fall under the Object3D class to the best of my knowledge, how should i prevent this?

2

It does not look like the classes are derived from Object3D. The __proto__ property should point to Object3D and not Object.

3

Thank you! looking back this seems like a stupid question. All I needed to do was refer to the mesh as opposed to the actual player object i had created. :slight_smile: