How to turn camera 90 degrees smoothly?

Question

Hello! So I'm super new to unity. I'm using some code I found in a tutorial to make the camera rotate with swipe gestures via a Leap Motion. However, the code makes the camera rotate continuously without stopping. How would I get it to rotate smoothly 90 degrees per swipe gesture? (Note: the camera is being assigned to the name blockOne. It was just a placeholder from the tutorial)

 using UnityEngine;
 using System.Collections;
 using Leap;
 
 public class GestureHands : MonoBehaviour
 {
     Controller controller;
 
     public GameObject blockOne;
 
     public bool spinLeft;
     public bool spinRight;
 
 
     void Start()
     {
         controller = new Controller();
         controller.EnableGesture(Gesture.GestureType.TYPESWIPE);
         controller.Config.SetFloat("Gesture.Swipe.MinLength", 100.0f);
         controller.Config.SetFloat("Gesture.Swipe.MinVelocity", 150f);
         controller.Config.Save();
 
 
 
     }
 
 
     void Update()
     {
 
         Frame frame = controller.Frame();
         GestureList gestures = frame.Gestures();
         Hand hand = frame.Hands.Frontmost;
         if (hand.IsRight)
         {
             for (int i = 0; i < gestures.Count; i++)
             {
                 Gesture gesture = gestures[i];
                 if (gesture.Type == Gesture.GestureType.TYPESWIPE)
                 {
                     SwipeGesture Swipe = new SwipeGesture(gesture);
                     Vector swipeDirection = Swipe.Direction;
                     if (swipeDirection.x < 0)
                     {
                         Debug.Log("Left");
                         spinLeft = true;
                         spinRight = false;
 
 
                     }
                     else if (swipeDirection.x > 0)
                     {
                         Debug.Log("Right");
                         spinRight = true;
                         spinLeft = false;
                     }
 
 
                 }
             }
 
             if (spinLeft == true)
             {
                 blockOne.transform.Rotate(Vector3.down, 45 * Time.deltaTime);
             }
 
     
             if (spinRight == true)
             {
                 blockOne.transform.Rotate(Vector3.up, 45 * Time.deltaTime);
             }
 
         }
 
 
     }
 }

Answer 1

Hi @IxiArcana - Doing a similar thing to you. Originally i used an IEnumerator to create a time delay after which id falsify the bool that makes the camera rotate: http://docs.unity3d.com/ScriptReference/MonoBehaviour.StartCoroutine.html

However this led to a major bug with the way the swipe gesture works so id recomend an alternative approach:

-Set the camera to 'LookAt' a target gameobject(make it empty/invisible) that moves to the new position when you perform a swipe. Im using a 'smoothLookAt' pre-built script for a smooth rotation effect. - When you swipe, call the command to re-position the target gameobject so the camera will rotate to look in the desired direction. - (apologies for messy script)

 using UnityEngine;
 using System.Collections;
 using Leap;
 
 public class GestureSwipe : MonoBehaviour {
 
     Controller controller;
     public GameObject User;
     public Transform CenterTransform;
     public GameObject CenterObject;
     public Transform Spring;
     public Transform Summer;
     public Transform Autumn;
     public Transform Winter;
     public bool spinLeft;
     public bool spinRight;
     public bool cameraMoveSp2Su;
     public bool cameraMoveSp2Wi;
     public bool cameraMoveSu2Au;
     public bool cameraMoveSu2Sp;
     public bool cameraMoveAu2Su;
     public bool cameraMoveAu2Wi;
     public bool cameraMoveWi2Sp;
     public bool cameraMoveWi2Au;
 
 
     void Start () {
 
         
         controller = new Controller();
         controller.EnableGesture(Gesture.GestureType.TYPESWIPE);
         controller.Config.SetFloat("Gesture.Swipe.MinLength", 200.0f);
         controller.Config.SetFloat("Gesture.Swipe.MinVelocity",2000.0f);
         controller.Config.Save();
         
     }
 
 
     void Update()
     {
 
         if( cameraMoveSp2Su==true)
         {
 
             CenterTransform.position = Vector3.MoveTowards(CenterTransform.position, Summer.position, 10.0f * Time.deltaTime);
 
 
 
         }
 
        else if (cameraMoveSp2Wi == true)
         {
 
             CenterTransform.position = Vector3.MoveTowards(CenterTransform.position, Winter.position, 10.0f * Time.deltaTime);
 
 
 
         }
 
         else if (cameraMoveSu2Sp == true)
         {
 
             CenterTransform.position = Vector3.MoveTowards(CenterTransform.position, Spring.position, 10.0f * Time.deltaTime);
 
 
 
         }
 
         else if (cameraMoveSu2Au == true)
         {
 
             CenterTransform.position = Vector3.MoveTowards(CenterTransform.position, Autumn.position, 10.0f * Time.deltaTime);
 
 
 
         }
 
         else if (cameraMoveAu2Wi == true)
         {
 
             CenterTransform.position = Vector3.MoveTowards(CenterTransform.position, Winter.position, 10.0f * Time.deltaTime);
 
 
 
         }
 
         else if (cameraMoveAu2Su == true)
         {
 
             CenterTransform.position = Vector3.MoveTowards(CenterTransform.position, Summer.position, 10.0f * Time.deltaTime);
 
 
 
         }
 
         else if (cameraMoveWi2Sp == true)
         {
 
             CenterTransform.position = Vector3.MoveTowards(CenterTransform.position, Spring.position, 10.0f * Time.deltaTime);
 
 
 
         }
 
         else if (cameraMoveWi2Au == true)
         {
 
             CenterTransform.position = Vector3.MoveTowards(CenterTransform.position, Autumn.position, 10.0f * Time.deltaTime);
 
 
 
         }
 
         Frame frame = controller.Frame();
             GestureList gestures = frame.Gestures();
 
             for (int i = 0; i < gestures.Count; i++)
             {
                 Gesture gesture = gestures[i];
                 if (gesture.Type == Gesture.GestureType.TYPESWIPE)
                 {
                     SwipeGesture Swipe = new SwipeGesture(gesture);
                     Vector swipeDirection = Swipe.Direction;
                     float swipeSpeed = Swipe.Speed;
                     Vector swipeStart = Swipe.StartPosition;
                 if (CenterTransform.position == Spring.position)
                 {
                     if (swipeDirection.x < 0)
                     {
 
 
                         
                         Debug.Log("Left");
                         cameraMoveSp2Su = true;
                         cameraMoveSp2Wi = false;
                         cameraMoveSu2Au = false;
                         cameraMoveSu2Sp = false;
                         cameraMoveAu2Su = false;
                         cameraMoveAu2Wi = false;
                         cameraMoveWi2Sp = false;
                         cameraMoveWi2Au = false;
 
 
 
                     }
 
 
 
 
 
                     else if (swipeDirection.x > 0)
                     {
 
                        
 
                         Debug.Log("Right");
 
                         cameraMoveSp2Su = false;
                         cameraMoveSp2Wi = true;
                         cameraMoveSu2Au = false;
                         cameraMoveSu2Sp = false;
                         cameraMoveAu2Su = false;
                         cameraMoveAu2Wi = false;
                         cameraMoveWi2Sp = false;
                         cameraMoveWi2Au = false;
 
                     }
 
 
 
 
                 }
 
                 else if (CenterTransform.position == Summer.position)
                 {
                     if (swipeDirection.x < 0)
                     {
 
 
 
                         Debug.Log("Left");
                         cameraMoveSp2Su = false;
                         cameraMoveSp2Wi = false;
                         cameraMoveSu2Au = true;
                         cameraMoveSu2Sp = false;
                         cameraMoveAu2Su = false;
                         cameraMoveAu2Wi = false;
                         cameraMoveWi2Sp = false;
                         cameraMoveWi2Au = false;
 
                         
                     }
 
 
 
 
 
                     else if (swipeDirection.x > 0)
                     {
 
                         cameraMoveSp2Su = false;
                         cameraMoveSp2Wi = false;
                         cameraMoveSu2Au = false;
                         cameraMoveSu2Sp = true;
                         cameraMoveAu2Su = false;
                         cameraMoveAu2Wi = false;
                         cameraMoveWi2Sp = false;
                         cameraMoveWi2Au = false;
 
                         Debug.Log("Right");
 
                     }
 
 
 
 
                 }
 
                else if (CenterTransform.position == Autumn.position)
                 {
                     if (swipeDirection.x < 0)
                     {
 
 
 
                         Debug.Log("Left");
 
                         cameraMoveSp2Su = false;
                         cameraMoveSp2Wi = false;
                         cameraMoveSu2Au = false;
                         cameraMoveSu2Sp = false;
                         cameraMoveAu2Su = false;
                         cameraMoveAu2Wi = true;
                         cameraMoveWi2Sp = false;
                         cameraMoveWi2Au = false;
                     }
 
 
 
 
 
                     else if (swipeDirection.x > 0)
                     {
 
                         cameraMoveSp2Su = false;
                         cameraMoveSp2Wi = false;
                         cameraMoveSu2Au = false;
                         cameraMoveSu2Sp = false;
                         cameraMoveAu2Su = true;
                         cameraMoveAu2Wi = false;
                         cameraMoveWi2Sp = false;
                         cameraMoveWi2Au = false;
                         Debug.Log("Right");
 
                     }
 
 
 
 
                 }
 
               else if (CenterTransform.position == Winter.position)
                 {
                     if (swipeDirection.x < 0)
                     {
 
 
 
                         Debug.Log("Left");
 
                         cameraMoveSp2Su = false;
                         cameraMoveSp2Wi = false;
                         cameraMoveSu2Au = false;
                         cameraMoveSu2Sp = false;
                         cameraMoveAu2Su = false;
                         cameraMoveAu2Wi = false;
                         cameraMoveWi2Sp = true;
                         cameraMoveWi2Au = false;
                     }
 
 
 
 
 
                     else if (swipeDirection.x > 0)
                     {
 
                         cameraMoveSp2Su = false;
                         cameraMoveSp2Wi = false;
                         cameraMoveSu2Au = false;
                         cameraMoveSu2Sp = false;
                         cameraMoveAu2Su = false;
                         cameraMoveAu2Wi = false;
                         cameraMoveWi2Sp = false;
                         cameraMoveWi2Au = true;
                         Debug.Log("Right");
 
                     }
 
 
 
 
                 }
 
 
 
             }
 
            
 
        
 
         }
     }
 
    
 
 
 }

Hope this helps!

How to turn camera 90 degrees smoothly?

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