OnMouseDown instead of Raycasting? [Beginner Question]

Question

So I am trying to make it so that when "Wheat" is clicked it will Debug.Log somet$$anonymous$$ng (for now). The raycast doesn't seem to be working, but the OnMouseDown is detecting it. Is there a way I can switch it to OnMouseDown, and if not, what is wrong with my Raycast code? Any help would be appreciated, and thanks! //code

private void Update() {

     if (Input.GetMouseButtonDown(0))
      {
          Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
          RaycastHit $$anonymous$$tInfo;
          if (Physics.Raycast(ray, out $$anonymous$$tInfo))
          {
             Debug.Log("smt");
              if ($$anonymous$$tInfo.collider.gameObject.tag == "Wheat")
              {
                  Debug.Log("tag");
                  
              }
          }
      }
     
 }

Answer 1

Answer by SurreyMuso · Oct 24, 2022 at 06:35 AM

OnMouseDown detects a click when over the game object with the script. If you click elsewhere, the wheat code is never called. You don't need the Ray cast since you know you have clicked on wheat to get t$$anonymous$$s far.

Add comment · Show 4 · Share

logicandchaos · Oct 24, 2022 at 01:14 PM 0

Share

Edit ya they are right, sorry about the down vote, won't let me change it now..

That's not true tho.. OnMouseDown detects any clicks. You should verify your answers before answering, spreading false information helps no one.

SurreyMuso logicandchaos · Oct 25, 2022 at 07:25 AM 1

Share

@logicandchaos I'm not sure what you're saying here. OnMouseDown is part of the family of OnMouseXXX events which are collider based and therefore only respond to the GameObject on which the click occurs. Not to Parent, not to Children and certainly not to any other GameObjects.

Only scripts on the receiving GameObject will be called, providing they have the OnMouseXXX event defined.

https://docs.unity3d.com/ScriptReference/MonoBehaviour.OnMouseDown.html

Shame there's no person-to-person chat on these forums. Would be so much easier to discuss these things off line and not clutter a question...

logicandchaos SurreyMuso · Oct 26, 2022 at 04:59 AM 0

Share

my bad I was thinking of Input.GetMouseButtonDown, haven't used OnMouseDown in so long I forgot about it!

Show more comments

Answer 2

Answer by logicandchaos · Oct 24, 2022 at 01:18 PM

You can use t$$anonymous$$s interface to make GameObjects clickable

https://docs.unity3d.com/2019.1/Documentation/ScriptReference/EventSystems.IPointerClickHandler.html

Add comment · Share

Answer 3

Answer by NotlawGD · Oct 24, 2022 at 10:37 PM

The code looks fine to me. Just in case, have you checked that the object to click has the appropiate tag? Is the gameObject on a layer that's not Ignore Raycast? Is your script attached to any gameobject?

If you're using the New Input System, I believe you have to access Mouse.current.position.ReadValue() in order to get the right mouse position, but I'm not 100% sure.

Add comment · Share

Answer 4

Answer by Prqtection · Oct 27, 2022 at 01:27 AM

I still don't understand. Before, my OnMouseDown function was working, but now that's not even working. Here is my OnMouseDown code //code void OnMouseDown() { playerItems.wheat += 1; Debug.Log("OnMouseDown");

I have a boxcollider2d as well, and it's not set to trigger.

Add comment · Share

OnMouseDown instead of Raycasting? [Beginner Question]

4 Replies

Your answer

Welcome to Unity Answers

Follow this Question

Related Questions