Detecting a gameobject when clicked by mouse

Unity Engine
1

Hey everyone. This is the scenario. I have few game object in my 2d game with camera set to orthographic. Now I want to detect these game object when I left click on them and do certain thing for each of them. How can I go about that ?

2

The unity manual shows how to do this. Or you can try this (the first link is fine).

http://lmgtfy.com/?q=unity+raycast+mouse

3 
OnMouseOver()
{
   //I don't think event keys workout side of GUI? Not sure enough to tell you but this is the code for that
   i(Event.current.button == 1)
   {
   }

   //Otherwise just get the input..
   if(Input.MouseButtonDown(1) ) //1 is right mouse button
   {
      //Do whatever or run a method.. 
   }
}
4

I tried OnMouseOver but I dont know how I can specify it on specific gameobject ?

I also saw the raycast method and gave it a try but i kept getting NullReferenceException on the code below

    void Update()
    {

        if (Input.GetMouseButtonDown(0))
        {
            Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
            Debug.Log(ray);
        }

    }

any ideas ?

5

Okay I think I got it

6

Please share for the benefit of anyone searching for a similar solution.

7

OnMouseDown would work.

8

You’d apply the OnMouseOver Script onto each Gameobject. Since the OnMouseOver it specific to the Gameobject it is on.

9

OnMouseDown is too, isn’t it?

10

yes thats the way i did it as well. I was trying to make one script and put it in all game objects, but i couldnt manage to refer to all gameobject in that one script, So i end up making one script for each game object,

Void OnMouseOver()
{
     if(Input.GetMouseButtonDown(0)
      {
          // Do this
       }
}

OnMouseDown() should work the same way I assume but I havent tried it yet.