How to listen to touch event on single game object?

Hi everyone, is there any way to listen to touch event on single game object while you are developing iPhone with Unity for iPhone?

I attached same script, which is written in JS, to ten different game objects. But when I touch anywhere on the screen, all these ten objects response to the touch event. What I want is when I touch each of these objects, only the one I touched would response to the touch event.

Can anybody help?

Many thanks.

Carol

 

touch events are not object specific, just screen specific.

If you need to know what object you touch, you need to do a raycast at the touch position into the ray direction of the camera.

 

I tried, but the problem is I am using guitexture which does not work for raycast.
Is there any other way to solve this problem??

Many thanks.

 

Can you post the script you are using? It should be possible to arrange things so that each instance responds separately, but there's no way to tell what is going wrong without seeing the script.

 

Thats actually easy: just add a box collider and set its size appropriately

 

I added a box collider to the gui texture which would be hit, but it still did not work.

here is my code.
in code attached to the background (guitexture):

function LevelControl()
{
var hit: RaycastHit;
if (iPhoneInput.touchCount > 0 iPhoneInput.GetTouch(0).phase == iPhoneTouchPhase.Ended)
{
var ray: Ray = camera.main.ScreenPointToRay(iPhoneInput.GetTouch(0).position);
print("ray:" + ray);

if(Physics.Raycast(ray,hit))
{
print("hit");
}
}
}


in the code attached to the guitexture which will be hit:

function OnTriggerEnter(other: Collider)
{
guiTexture.texture = clicked;
print(other.name);
}


I can see the information of ray but not the "hit" and other.name.

 

hi,


just try:

Code (csharp):

1. // assign the guitexture in the editor
2. var Slot1 : GUITexture;
3.  
4. if ( Slot1.HitTest(theTouch.position) ) {
5.  
6.  // do sth.;
7.  
8. }

you dont need a collider or a raycast to check if a guitexture was touched.

greetings, thomas

 

It's working!

Million thanks.

 

you can help me how I can execute more collider on one object
Each collider has script