Separate AR scene placement logic from spawner logic

🌵 Needle Engine
1

Continuing the discussion from Multiple placement webAR Not working:

let me give you everything to check:

Untitled
Untitled306×354 14.9 KB

this is my hierarchy.
the xr has the webXRPlaneTracking component from needle ts.
the ARSpawner has this script:

import { Behaviour, serializable, IPointerClickHandler, PointerEventData } from "@needle-tools/engine";
import { Object3D, Vector3 } from "three";

export class ARObjectSpawner extends Behaviour implements IPointerClickHandler {
    // Assign your prefab in the Unity Inspector
    @serializable(Object3D)
    public objectPrefab: Object3D | null = null;

    // Called on tap/click events in the AR scene
    onPointerClick(event: PointerEventData): void {
        if (!this.objectPrefab) return;
        // Clone the prefab instance
        const newObject = this.objectPrefab.clone();
        // Optionally, if the event contains a world position (for example, using a raycast hit point), use it:
        const targetPos = (event as any).hitPoint || new Vector3(0, 0, 0);
        newObject.position.copy(targetPos);
        // Add the new object as a child to this gameObject to keep it in the scene
        this.gameObject.add(newObject);
    }
    
    // Method to allow UI button to place an object at a given position
    public placeObjectAtPosition(position: Vector3): void {
        if (!this.objectPrefab) return;
        const newObject = this.objectPrefab.clone();
        newObject.position.copy(position);
        this.gameObject.add(newObject);
    }
}

the raycaster have a object raycaster component also from needle.
and the Placeable object is the prefab.
it works only one time to place on the gizmo on place tracking. then nothing.

4

Please dont open multiple posts for the same topic