How to rotate object on button click?

UNITY 2D C#

I would like rotate my object when I hold the button that I created in canvas (OnClick method, NOT MOUSE BUTTON). Now when I hold the button, it only rotates per one frame. When I hold the button, the object should rotate until I release it. I tried to use bool, but it doesn't work, so I went back to the beginning. Any help?

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.UI;
5.  
6. public class Rotation : MonoBehaviour
7. {
8.  
9.     public float rotateSpeed = 180f;
10.  
11.  
12.     // Use this for initialization
13.     void Start () {
14.  
15.     }
16.  
17.     void Update () {
18.  
19.     }
20.  
21.     public void OnClickLeft () {
22.        
23.         transform.Rotate(Vector3.forward*rotateSpeed*Time.deltaTime);
24.  
25.     }
26.    
27. }
28.  

 

Take a look at using an EventTrigger.

Add an EventTrigger to your button and add the "Pointer Down" and "Pointer Up" event types to it.

In your code, create a bool "isPressed":

Code (CSharp):

1. bool isPressed;

Add a new function to toggle "isPressed":

Code (CSharp):

1. public void TogglePressed(bool value)
2. {
3.     isPressed = value;
4. }

In Update() check if "isPressed" is true and rotate the transform:

Code (CSharp):

1. void Update()
2. {
3.     if(isPressed)
4.     {
5.         OnClickLeft(); //or just move the rotation code here
6.     }
7. }

Lastly, link the "TogglePressed" function to the "Pointer Down" event and check the checkbox. Do the same for "Pointer Up" event, but leave the checkbox unchecked.

Now the object will rotate for as long as the button is pressed.

 

I have it. Honestly, I didn't even realize that you could add the Even Trigger option to the buttons

 

Take a look at IPointerDownHandler for EventSystems

Attach this to the button and attach the GameObject you want to rotate to the rotatedObject variable.
Here's a suggested solution:

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.EventSystems;
3. public class RotateObject : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
4. {
5.     public GameObject rotatedObject;
6.     public float rotationSpeed = 20;
7.     bool rotate = false;
8.  
9.     void FixedUpdate()
10.     {
11.         if (rotate == false)
12.             return;
13.  
14.         rotatedObject.transform.Rotate(Vector3.forward * rotationSpeed * Time.deltaTime);
15.     }
16.  
17.     public void OnPointerDown(PointerEventData pointerEventData)
18.     {
19.         rotate = true;
20.     }
21.  
22.     public void OnPointerUp(PointerEventData pointerEventData)
23.     {
24.         rotate = false;
25.     }
26. }