Can't remove EventListener in Typescript
I'm trying to remove event listeners in typescript. I add event listener in if statement. In the else statement I'm trying to remove these event listeners but for some reason it's not removing them.
FYI: I have a button where I set a boolean value (movePick). If this is true then I want to be able to move my object. This is where the event listener is created. If I click the button again, I can no longer move the object. That's why I tried removing the event listener.
public moveObject(movePick: boolean, raycaster: THREE.Raycaster): void {
const plane = new THREE.Plane();
const pNormal = new THREE.Vector3(0, 1, 0); // plane's normal
const planeIntersect = new THREE.Vector3(); // point of intersection with the plane
const pIntersect = new THREE.Vector3(); // point of intersection with an object (plane's point)
const shift = new THREE.Vector3(); // distance between position of an object and points of intersection with the object
let isDragging = false;
let dragObject: any;
// events
const pointermove = (event: PointerEvent) => {
const rect = this.canvas.getBoundingClientRect();
const x = event.clientX - rect.left
const y = event.clientY - rect.top
const pickPosition = { x: 0, y: 0 };
pickPosition.x = (x / this.canvas.clientWidth) * 2 - 1;
pickPosition.y = (y / this.canvas.clientHeight) * -2 + 1;
raycaster.setFromCamera(pickPosition, this.camera);
// console.log("movePICK IN POINTERMOVE",movePick)
if (isDragging) {
raycaster.ray.intersectPlane(plane, planeIntersect);
dragObject.position.addVectors(planeIntersect, shift);
}
}
const mousedown = () => {
const intersects = raycaster.intersectObjects(this.scene.children);
for (let i = 0; i < this.mesharr.length; i++) {
if (intersects[0].object.name == this.mesharr[i].name && intersects[0].object.name != "Rail") {
pIntersect.copy(intersects[0].point);
plane.setFromNormalAndCoplanarPoint(pNormal, pIntersect);
shift.subVectors(intersects[0].object.position, intersects[0].point);
isDragging = true;
dragObject = intersects[0].object;
}
}
}
const pointerup = () => {
isDragging = false;
dragObject = null;
}
**if (movePick) {
document.addEventListener("pointermove", pointermove);
document.addEventListener("mousedown", mousedown);
document.addEventListener("pointerup", pointerup);
} else {
document.removeEventListener("pointermove", pointermove);
document.removeEventListener("mousedown", mousedown);
document.removeEventListener("pointerup", pointerup);
}**
}
If I delete the event list in the same if statement that I added the event list, they are deleted. But if I click the button again and enter the else statement, I can't delete them. I also tried several solutions in stackoverflow but none of them worked.
