Touch Input on Sprites

[lixpoxx]

Hey.
I’ve been trying to figure out how to make a control for my game.
I got the idea to take a sprite and if the finger is on this sprite
it should act like Input.GetKey.
(A sprite also doesn’t change the position as the GUI, what i mean with it is that it doesn’t change its position and is easier to build it)
Can anyone help me.

[Rioneer]

void Update()
{
if (Input.touchCount == 1)
{
Vector3 wp = Camera.main.ScreenToWorldPoint(Input.GetTouch(0).position);
Vector2 touchPos = new Vector2(wp.x, wp.y);
if (collider2D == Physics2D.OverlapPoint(touchPos))
{
//your code
}
}
}

Here’s the source.

Edit :

Here’s something I wrote. It would come in handy if you need to control all touch inputs from 1 script :

    private GameObject beganObj;
    private GameObject currentObj;
	
	void Update () 
    {
        if(Input.touchCount > 0)
        {
            for(int i = 0; i < Input.touchCount; i++)
            {
                Touch currentTouch = Input.GetTouch(i);
                if(currentTouch.phase == TouchPhase.Began)
                {
                    Vector2 v2 = new Vector2(Camera.main.ScreenToWorldPoint(currentTouch.position).x, Camera.main.ScreenToWorldPoint(currentTouch.position).y);
                    Collider2D c2d = Physics2D.OverlapPoint(v2);
                    
                    if(c2d != null)
                    {
                        beganObj = c2d.gameObject;
                    }
                }

                if (currentTouch.phase == TouchPhase.Moved)
                {
                    Vector2 v2 = new Vector2(Camera.main.ScreenToWorldPoint(currentTouch.position).x, Camera.main.ScreenToWorldPoint(currentTouch.position).y);
                    Collider2D c2d = Physics2D.OverlapPoint(v2);                    

                    if (c2d != null)
                    {
                        currentObj = c2d.gameObject;
                    }
                }
            }
        }
	}

JS :

    function Update()
    {
        if (Input.touchCount == 1)
        {
            wp : Vector3 = Camera.main.ScreenToWorldPoint(Input.GetTouch(0).position);
            touchPos : Vector2 = new Vector2(wp.x, wp.y);
            if (collider2D == Physics2D.OverlapPoint(touchPos))
            {
                //your code
            }
        }
    }

I think this will do it in javascript. Attach this to sprite you want to use as button and make sure you have a 2D collider in your sprite object.

Another way to do this with guiTextures :

function Update()
{
   if(Input.touches.Length > 0)
   {
      for(int i = 0; i < Input.touchCount; i++)
      {
         if(this.guiTexture.HitTest(Input.GetTouch(i).position)
         {
            if(Input.GetTouch(i).phase == TouchPhase.Began)
            {
               // Write what you want to do when guiTexture is touched.
            }
         }
      }
   }
}

Attach this script to your gameObject that’s holding guiTexture. I haven’t been using javascript for a while now, so I apologize in advance if there are any mistakes. Good luck.