EasyTouch的使用

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









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：



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：





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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