Get touch position?

Question

All I need is to get the x coordinate of the touch position.

I want to know if the user has tapped on the right half of the screen.

This may not be the only touch on the screen... so here is what I have so far:

 #pragma strict
 
 function Update (){            
     for (var i = 0; i < Input.touchCount; ++i){
         if (Input.GetTouch(i).phase == TouchPhase.Began) {
               if (Input.GetTouch[i].position > parseFloat(Screen.width/2)){
                 //do something
                   }
           }
         }
 }

Can someone help me?

Answer 1

Best Answer

Answer by KellyThomas · Feb 02, 2014 at 01:19 AM

One error in you code is using "`GetTouch[i]"` on line 6, when it should be "`GetTouch(i)`" as demonstrated on the line before it.

Usually if you are repeatedly calling the same getter it is neater and easier to store that value of interest locally.

 function Update () {            
     for (var i = 0; i < Input.touchCount; ++i) {
         Touch touch = Input.GetTouch(i);
         if (touch.phase == TouchPhase.Began) {
            if (touch.position > (Screen.width/2)) {
                 //do something
            }
         }
     }
 }

Add comment · Show 4 · Share

Eduardo Cortes · Aug 28, 2014 at 06:58 PM 1

Share

have a small error in your code.

 function Update () {            
     for (var i = 0; i < Input.touchCount; ++i) {
         Touch touch = Input.GetTouch(i);
         if (touch.phase == TouchPhase.Began) {
            // Need to put .x
            if (touch.position.x > (Screen.width/2)) {
                 //do something
            }
         }
     }
 }

KellyThomas · Sep 14, 2014 at 08:23 PM 0

Share

thanks, good catch.

L96Unity · Jan 28, 2015 at 11:27 PM 0

Share

         var touch : Touch;
         touch = Input.GetTouch(i);

Ins$$anonymous$$d of:

  Touch touch = Input.GetTouch(i);

Worked for me. Thanks

Dane411 · Jun 18, 2015 at 10:57 PM 0

Share

foreach (Touch touch in Input.touches)

Get touch position?

1 Reply

Your answer

Follow this Question

Related Questions