[AS3]as3下侦听键盘动作和鼠标动作的源代码示例

[AS3]as3下侦听键盘动作和鼠标动作的源代码示例

package   
 
{ 
 
import flash.display.Stage; 
import flash.events.KeyboardEvent; 
import flash.ui.Keyboard; 
import flash.events.MouseEvent; 
/** 
* CuPlayer.com处理玩家输入类---侦听键盘和鼠标 
*/ 
public class UserInputHandler 
{ 
public static var keyRight:Boolean; 
public static var keyLeft:Boolean; 
public static var keyForward:Boolean; 
public static var keyBackward:Boolean; 
public static var mouseDown:Boolean; 
public function UserInputHandler(stage:Stage)  
{ 
//CuPlayer.com侦听玩家键盘和鼠标事件 
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler); 
stage.addEventListener(KeyboardEvent.KEY_UP, keyUpHandler);  
stage.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownHandler); 
stage.addEventListener(MouseEvent.MOUSE_UP,mouseUpHandler); 
} 
private function keyDownHandler(e:KeyboardEvent):void 
{ 
switch(e.keyCode) 
{ 
case "W".charCodeAt(): 
case Keyboard.UP: 
UserInputHandler.keyForward  = true; 
UserInputHandler.keyBackward = false; 
break; 
case "S".charCodeAt(): 
case Keyboard.DOWN: 
UserInputHandler.keyBackward = true; 
UserInputHandler.keyForward  = false; 
break; 
case "A".charCodeAt(): 
case Keyboard.LEFT: 
UserInputHandler.keyLeft    = true; 
UserInputHandler.keyRight    = false; 
break; 
case "D".charCodeAt(): 
case Keyboard.RIGHT: 
UserInputHandler.keyRight   = true; 
UserInputHandler.keyLeft    = false; 
break; 
} 
} 
private function keyUpHandler(e:KeyboardEvent):void 
{ 
switch(e.keyCode) 
{ 
case "W".charCodeAt(): 
case Keyboard.UP: 
UserInputHandler.keyForward = false; 
break; 
case "S".charCodeAt(): 
case Keyboard.DOWN: 
UserInputHandler.keyBackward = false; 
break; 
case "A".charCodeAt(): 
case Keyboard.LEFT:  
UserInputHandler.keyLeft     = false; 
break; 
case "D".charCodeAt(): 
case Keyboard.RIGHT: 
UserInputHandler.keyRight   = false; 
break; 
} 
} 
private function mouseDownHandler(e:MouseEvent):void 
{ 
mouseDown = true; 
} 
private function mouseUpHandler(e:MouseEvent):void 
{ 
mouseDown = false; 
} 
} 
}