void OnMouseDown for mobile?

Question

hey! i wanted to use t$$anonymous$$s snippet: http://pastebin.com/Mn6sx1MC but somehow it doesent work on a phone - but perfect in a editor. i t$$anonymous$$nk that OnMouseDown at line 30 is causing the problem. so t$$anonymous$$s line:

 void OnMouseDown(){
         beingDragged = true;
     }
     void OnMouseUp(){
         beingDragged = false;
         transform.position = oldPosition; // place on the last valid position
         _intersecting = 0; // stationary block do not intersect anymore
         TintRed(_intersecting); // set the tint one last time
     }

how do i have to change t$$anonymous$$s to make t$$anonymous$$s work on a phone?

Answer 1

OnMouseDown() is an old way of interaction. There is no mouse on mobile platform so interactions are handled in a different way. That's why it works in Editor (on PC with a mouse) and does not on mobile.

In Unity 4.6 we got new UI system as well as new Event System.

So to ac$$anonymous$$eve what you want you should have Event System in your scene that will send interaction events. And your interactable objects should have some way of receiving those events.

For a purposes of interaction with GameObjects you can make them have colliders (2d or 3d) and event handler components: either default EventTrigger or your own script that implement Supported Events handling.

Also you need to add a Raycaster of proper type to your camera that will send those events.

In your case the old OnMouseDown() method will be replaced by new OnPointerDown() wich works on both PC and mobile platforms.

Hope t$$anonymous$$s will help you to get the idea of interaction in Unity and solve your problem. If you have any questions left, feel free to ask.

Answer 2

Answer by mostwanted9192 · Apr 20, 2016 at 09:17 AM

OnMouseDown() is not available on devices because of Touch implementation. For further answer, Kindly look t$$anonymous$$s answer. http://answers.unity3d.com/questions/124198/onmousedown-alternative-for-mobile.html

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Answer 3

Answer by aditya · Apr 20, 2016 at 10:32 AM

as Phones and tablets don't have any MOUSES then OnMouseUp or OnMouseDown will not work on them .... try t$$anonymous$$s

 void Update(){
             if (Input.touchCount == 1) {
                 if(Input.GetTouch(0).phase == TouchPhase.Began)
                     beingDragged = true;
                 if(Input.GetTouch(0).phase == TouchPhase.Ended){
                     beingDragged = false;
                     transform.position = oldPosition;
                     _intersecting = 0;
                     TintRed (_intersecting);
                 {
             }
 }

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hendryshaikh2004 · Mar 10, 2021 at 11:56 AM 0

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It Worked Thanks

Answer 4

Answer by Nikunj-Kareliya · Apr 20, 2016 at 09:01 AM

Other alternative is to use methods of Input class inside the Update().

 void Update () {
         if(Input.GetMouseButtonDown(0)) {
             beingDragged = true;    
         }
         else if (Input.GetMouseButtonUp (0)) {
             beingDragged = false;
             transform.position = oldPosition; // place on the last valid position
             _intersecting = 0; // stationary block do not intersect anymore
             TintRed(_intersecting); // set the tint one last time
         }
 
 }

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Der_Kevin · Apr 20, 2016 at 09:24 AM 0

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ok, thanks. that sounds pretty reasonable. but somehow my drag function is acting weird now: http://imgur.com/a/cQGpU

the second gif is how it was before - but not working on mobile. the first how it is after the code changes

Nikunj-Kareliya · Apr 29, 2016 at 01:01 PM 0

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 // Suppsoe it is perspective camera view
     void Update () {
         if (Input.GetMouseButton(0)) {
                             
             // Convert mouse position into world position
             // make sure you have passed the distance between object and camera as a 3rd parameter of vector3() method
             Vector3 worldPos = mainCamera.ScreenToWorldPoint (new Vector3(Input.mousePosition.x, Input.mousePosition.y, 20f));
 
             Vector3 tmpPos = cloneBasket.transform.position;
             // Drag only in X axis
             tmpPos.x = Mathf.MoveTowards (tmpPos.x, worldPos.x, Time.deltaTime * 5);
             // Restriction of object in X axis
             tmpPos.x = Mathf.Clamp (tmpPos.x, 1502.8f, 1507);
             cloneBasket.transform.position = tmpPos;
         }
     }

Answer 5

Answer by meat5000 · Apr 20, 2016 at 10:42 AM

The modern Unity 5 way is to disregard the concept of Mouse and Touch and move to the concept of 'Pointers'. The Standalone Input Module (Touch Input Module now deprecated) has all the methods to handle events from multiple Pointers, w$$anonymous$$ch include both cursor and touch input.

http://docs.unity3d.com/530/Documentation/ScriptReference/EventSystems.StandaloneInputModule.html

The Standalone Input Module is designed to work with new UI through the Event System.

To implement Dragging you can use OnDrag

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void OnMouseDown for mobile?

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