Question by stoniminetar · Oct 01, 2018 at 06:18 AM · touch camera-movement touch controls multitouch

Multi-touch for camera not working?

Hi, I have a joystick in the Canvas used to move a ball. I want to integrate this camera script: using UnityEngine; using System.Collections;

public class RotateCamera : MonoBehaviour {

 void Start (){
     Vector3 angles= transform.eulerAngles;
     x = angles.y;
     y = angles.x;

     // Make the rigid body not change rotation

     if (GetComponent<Rigidbody>())
         GetComponent<Rigidbody>().freezeRotation = true;
     sensivityX = PlayerPrefs.GetFloat ("camera_sensivity");
     sensivityY = PlayerPrefs.GetFloat ("camera_sensivity") / 1.4f;
     nono = GameObject.Find("VirtualJoystickContainer (1)").GetComponent<RectTransform>();
 }
     
 void FixedUpdate ()
 {
         if (target && GetComponent<Camera> ()) {
             //Zooming with mouse

             distance += Input.GetAxis ("Mouse ScrollWheel") * distance;
             distance = Mathf.Clamp (distance, minDistance, maxDistance);

         if (!RectTransformUtility.RectangleContainsScreenPoint (nono, Input.mousePosition)) {
             if (Input.touchCount == 1 && Input.GetTouch (0).phase == TouchPhase.Moved) {
                 //One finger touch does orbit
                 touch = Input.GetTouch (0);
                 if (PlayerPrefs.GetInt ("InvertX") == 0)
                     x += touch.deltaPosition.x * xSpeed * 0.02f * sensivityX;
                 else
                     x -= touch.deltaPosition.x * xSpeed * 0.02f * sensivityX;
                 if (PlayerPrefs.GetInt ("InvertY") == 0)
                     y += touch.deltaPosition.y * ySpeed * 0.02f * sensivityY;
                 else
                     y -= touch.deltaPosition.y * ySpeed * 0.02f * sensivityY;
             }

             if (Input.touchCount > 1 && (Input.GetTouch (0).phase == TouchPhase.Moved || Input.GetTouch (1).phase == TouchPhase.Moved)) {
                 //Two finger touch does pinch to zoom
                 var touch1 = Input.GetTouch (0);
                 var touch2 = Input.GetTouch (1);
                 curDist = Vector2.Distance (touch1.position, touch2.position);
                 if (curDist > lastDist) {
                     distance += Vector2.Distance (touch1.deltaPosition, touch2.deltaPosition) * pinchSpeed / 10;
                 } else {
                     distance -= Vector2.Distance (touch1.deltaPosition, touch2.deltaPosition) * pinchSpeed / 10;
                 }
                 lastDist = curDist;
             }
         }
             y = ClampAngle (y, yMinLimit, yMaxLimit);

             Quaternion rotation = Quaternion.Euler (y, x, 0);
             Vector3 vTemp = new Vector3 (0.0f, 0.0f, -distance);
             Vector3 position = rotation * vTemp + target.position;
             transform.position = Vector3.Lerp (transform.position, position, cameraSpeed * Time.deltaTime);
             transform.rotation = rotation;      
         }
 }

 static float ClampAngle(float angle, float min, float max)
 {
     if (angle < -360)
         angle += 360;
     if (angle > 360)
         angle -= 360;
     return Mathf.Clamp (angle, min, max);
 }

The camera itself is working fine but the problem comes when I want to move my ball and move the camera simultaneously. It's like the camera doesn't support multi-touch, I can drag the joystick but the camera is not responding! The camera is moved by moving your finger outside of the joystick to orbit the ball. It even doesn't work when I hold any part of the screen and try to move the camera. I also have another camera script suffering from the same problem. Can this be fixed? I've been struggling with this for a while now.

Add comment · Show 2

hexagonius · Oct 01, 2018 at 07:30 AM 0

the script clearly uses one touch for orbiting and two touches for pinching.

stoniminetar hexagonius · Oct 01, 2018 at 10:20 PM 0

Hi, This script also doesn't work with the joystick. using System.Collections; using System.Collections.Generic; using UnityEngine;

public class Camera$$anonymous$$otor : $$anonymous$$onoBehaviour { private void Start() { offset = new Vector3 (0, yOffset, -1f * distance); }

 private void Update()
 {
         if (Swipe$$anonymous$$anager.Instance.IsSwiping (SwipeDirection.Left))
             SlideCamera (true);
         if (Swipe$$anonymous$$anager.Instance.IsSwiping (SwipeDirection.Right))
             SlideCamera (false);
 }

 private void FixedUpdate()
 {
     desiredPosition = lookAt.position + offset;
     transform.position = Vector3.Lerp (transform.position, desiredPosition, smoothSpeed * Time.deltaTime);
     transform.LookAt (lookAt.position + Vector3.up);
 }

 public void SlideCamera(bool left)
 {
         if (left)
             offset = Quaternion.Euler (0, 60, 0) * offset;
         else
             offset = Quaternion.Euler (0, -60, 0) * offset;
 }

} It only uses one finger swiping. This is the swipe script: using System.Collections; using System.Collections.Generic; using UnityEngine;

public enum SwipeDirection { None = 0, Left = 1, Right = 2, Up = 4, Down = 8, }

public class Swipe$$anonymous$$anager : $$anonymous$$onoBehaviour {

 private void Start()
 {
     instance = this;
 }

 private void Update()
 {
     Direction = SwipeDirection.None;

     if(!RectTransformUtility.RectangleContainsScreenPoint (nono, Input.mousePosition))
     {
     if (Input.Get$$anonymous$$ouseButtonDown (0)) {
         touchPosition = Input.mousePosition;
     }

     if (Input.Get$$anonymous$$ouseButtonUp (0))
     {
         Vector2 deltaSwipe = touchPosition - Input.mousePosition;

         if($$anonymous$$athf.Abs(deltaSwipe.x) > swipeResistanceX)
         {
             // Swipe on the X axis
             Direction |= (deltaSwipe.x <0) ? SwipeDirection.Right : SwipeDirection.Left;
         }

             if ($$anonymous$$athf.Abs (deltaSwipe.y) > swipeResistanceY) {
                 // Swipe on the Y axis
                 Direction |= (deltaSwipe.y < 0) ? SwipeDirection.Up : SwipeDirection.Down;
             }
         }
     }
 }

 public bool IsSwiping(SwipeDirection dir)
 {
     return (Direction & dir) == dir;
 }

Multi-touch for camera not working?

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