Unity-EasyTouch插件之Two Finger

今天，我们来学习下多手指触摸屏幕的事件，分别有挤压（缩放），挤压（旋转）

挤压（缩放）：

在easytouch中，双手指挤压缩放的英文为Pinch

好了今天我们的测试是双手指挤压对物体进行缩放。我们测试的是Cube。

在easytouch中，分别有挤入（PinchIn）和挤出（PinchOut）这这两个对立的触屏手势。 挤入是两只手指靠拢，挤出是两只手指放开

using UnityEngine;
using System.Collections;
 
public class TouchTest : MonoBehaviour {
	bool isStart = false;


    void OnEnable(){
        EasyTouch.On_PinchIn += On_PinchIn;//挤入
        EasyTouch.On_PinchOut += On_PinchOut;//挤出
        //On_PinchEnd调用不准确 改成下面三个
        EasyTouch.On_PinchEnd += On_PinchEnd;//挤压结束
		EasyTouch.On_Cancel2Fingers += OnEnd;
        EasyTouch.On_TouchUp += OnEnd;
        EasyTouch.On_TouchUp2Fingers += OnEnd;
		
    }
     
    void OnDisable(){
        UnsubscribeEvent();
    }
     
    void OnDestroy(){
        UnsubscribeEvent();
    }
     
    // Unsubscribe to events
    void UnsubscribeEvent(){
        EasyTouch.On_PinchIn -= On_PinchIn;
        EasyTouch.On_PinchOut -= On_PinchOut;
        EasyTouch.On_PinchEnd -= On_PinchEnd;
    }
     
    void Start(){
    }
    private void On_PinchIn(Gesture gesture){
 
        if (gesture.pickObject == gameObject){
             
            float zoom = Time.deltaTime * gesture.deltaPinch;
             isStart = true;
            Vector3 scale = transform.localScale ;
            transform.localScale = new Vector3( scale.x - zoom, scale.y -zoom, scale.z-zoom);
        }  
    }
 
    private void On_PinchOut(Gesture gesture){
        if (gesture.pickObject == gameObject){
            float zoom = Time.deltaTime * gesture.deltaPinch;
             isStart = true;
            Vector3  scale = transform.localScale ;
            transform.localScale = new Vector3( scale.x + zoom, scale.y +zoom,scale.z+zoom);
 
        }
    }
    private void On_PinchEnd(Gesture gesture){
         if(isStart ){
 			if (gesture.pickObject == gameObject){
            	print ("End");
        	}
		}
       
         
    }  
}

这里注意一下，挤压的时候两个手指必须都接触到GameObject，不能一只有一只没有。

可能有些小伙伴还不知道怎么在电脑上测试，在easytoucjh的属性面板里面，我们发现按下Left Alt是默认的Pinch和Twist的按键。

挤压（旋转）：

在easytouch中双手挤压旋转对应的英文为Twist

using UnityEngine;
using System.Collections;
 
public class TouchTest : MonoBehaviour {
    void OnEnable(){
        EasyTouch.On_Twist += On_Twist;
        EasyTouch.On_TwistEnd += On_TwistEnd;
    }
     
    void OnDisable(){
        UnsubscribeEvent();
    }
     
    void OnDestroy(){
        UnsubscribeEvent();
    }
     
    // Unsubscribe to events
    void UnsubscribeEvent(){
        EasyTouch.On_Twist -= On_Twist;
        EasyTouch.On_TwistEnd -= On_TwistEnd;
    }
     
    void Start(){
 
    }
    private void On_Twist(Gesture gesture)
    {
        if (gesture.pickObject == gameObject)
        {
            print(gesture.twistAngle);
            transform.Rotate(new Vector3(0,0,gesture.twistAngle));//旋转挤压的角度,
        }
    }
    private void On_TwistEnd(Gesture gesture)
    {
        if (gesture.pickObject == gameObject)
        {
            print("End");
        }
    }
}