EasyTouch的使用

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EasyTouch插件包含三个模块：Easy Button 、 Joystick 、事件

关于按钮和事件这一块，在实际的工作中，你可以用Easy Button，也可以用其它插件，比如NGUI，效果上都是一样的

下面就具体说说Easy Button的使用，有两种使用方法：
方法一，请看如下截图
这里写图片描述

按钮使用方法二：通过按钮的名字区分点击的是哪个按钮

关于Joystick，重点掌握以下几个方面：
这里写图片描述
关于Joystick必须掌握三个语句：
语句一： joystick.JoystickAxis

语句二： float angle = move.Axis2Angle(true);

语句三： move.joystickValue

最后对两个语句做个总结，如下图：
这里写图片描述

下面说说EasyTouch提供的一整套针对移动设备的事件，包括常用的单手指按下开始、单手指拖动、双手指拉大、双手指缩小、双手指扭动旋转等，代码如下：

using UnityEngine;using System.Collections;public class Photo : MonoBehaviour {    private Vector3 deltaPosition;    private Vector3 rotation;    private bool newPivot=false;            // Subscribe to events    void OnEnable(){        EasyTouch.On_DragStart += On_DragStart;        EasyTouch.On_Drag += On_Drag;        EasyTouch.On_TouchStart2Fingers += On_TouchStart2Fingers;        EasyTouch.On_TouchDown2Fingers += On_TouchDown2Fingers;        EasyTouch.On_PinchIn += On_PinchIn;        EasyTouch.On_PinchOut += On_PinchOut;        EasyTouch.On_Twist += On_Twist;        EasyTouch.On_Cancel2Fingers += On_Cancel2Fingers;    }    void OnDisable(){        UnsubscribeEvent();    }    void OnDestroy(){        UnsubscribeEvent();    }       void UnsubscribeEvent(){        EasyTouch.On_DragStart -= On_DragStart;        EasyTouch.On_Drag -= On_Drag;        EasyTouch.On_TouchStart2Fingers -= On_TouchStart2Fingers;        EasyTouch.On_TouchDown2Fingers -= On_TouchDown2Fingers;        EasyTouch.On_PinchIn -= On_PinchIn;        EasyTouch.On_PinchOut -= On_PinchOut;        EasyTouch.On_Twist -= On_Twist;         EasyTouch.On_Cancel2Fingers -= On_Cancel2Fingers;    }       void On_Cancel2Fingers( Gesture gesture){        if (gesture.touchCount>0){            newPivot=true;          }    }    // One finger drag    void On_DragStart( Gesture gesture){        // restricted when there is only one touch         if (gesture.touchCount==1){            // Calculate the delta position between touch and photo center position            Vector3 position = gesture.GetTouchToWordlPoint(1);            deltaPosition = position - transform.position;        }    }       void On_Drag( Gesture gesture){        if (gesture.touchCount==1){            Vector3 position = gesture.GetTouchToWordlPoint(1);             if (newPivot){                deltaPosition = position - transform.position;                newPivot = false;            }            transform.position = position - deltaPosition;        }    }       // when a two finger gesture begining    void On_TouchStart2Fingers(Gesture gesture){        // Calculate the delta position between touch and photo center position        Vector3 position = gesture.GetTouchToWordlPoint(1);        deltaPosition = position - transform.position;    }       void On_TouchDown2Fingers(Gesture gesture){        // Moving during pinch & twist        Vector3 position = gesture.GetTouchToWordlPoint(1);        transform.position = position - deltaPosition;    }       // 双手指缩小    void On_PinchIn(Gesture gesture){        float zoom = Time.deltaTime * gesture.deltaPinch/25;        Vector3 scale = transform.localScale ;        if ( scale.x - zoom>0.1)            transform.localScale = new Vector3( scale.x - zoom, scale.y -zoom,1f);    }    // 双手指放大    void On_PinchOut(Gesture gesture){        float zoom = Time.deltaTime * gesture.deltaPinch/25;        Vector3 scale = transform.localScale ;        if ( scale.x + zoom<3 )            transform.localScale = new Vector3( scale.x + zoom, scale.y +zoom,1f);    }       //双手指按压扭动旋转    void  On_Twist( Gesture gesture){        transform.Rotate(new Vector3(0,0,gesture.twistAngle));    }    }

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