Destroying objects with clicking-CodePudding

Trying to figure out how to destroy an object by clicking on it. I have tried using

public void Destroy()
{
    if (Input.GetMouseButton(0))
        Destroy(GameObject);
}

but realise that this will destroy all gameobjects the script is attached to instead of the one I am clicking on.

CodePudding user response：

Try this one:

public void onm ouseDown() => Destroy(gameObject);

CodePudding user response：

Definitely the best way is to implement IPointerClick interface,

using UnityEngine;
using UnityEngine.EventSystems;

public class ClickDestroy : MonoBehaviour, IPointerClickHandler
{
    public void OnPointerClick(PointerEventData eventData)
    {
      GameObject.Destroy(gameObject);
    }

}

This will work both for UI and for 3D Objects, as long as your camera has PhysicsRaycaster and an EventSystem exists on scene

CodePudding user response：

You can get the mouse position on the screen and fire a raycast from that location. If it hits a gameobject then you can pass it to a function to delete it.

void Update {

    //Check for mouse click
    if (Input.GetMouseButton(0))
    {

        //Create a ray from mouse location
        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        RaycastHit hit = new RaycastHit();

        //Check if the ray hit a gameobject, gameobject will likely need a collider
        //for this to work
        if (Physics.Raycast(ray, out hit))
        {
            //If the ray hit a gameobject, destroy the gameobject
            Destroy(hit.gameobject)
        }
    }
}

When destroying gameobjects, make sure your specifying the gameobject component and not the script or another component of the gameobject.

This code can be improved by defining a camera object in your code and assigning a camera to it in the inspector instead of it defaulting to the main or setting up full player controls in unity (Which I can't remember how to do off the top of my head I'm afraid)