Question

flash as 控制元件移动 as3.0 控制上下左右移动

还有一个是圆周运动 按一下按钮改变方向 我试了网上的例子 一直不成功 不知道哪步做的有问题
请穿个源文件给我看看 或者教教我也好
QQ345158222

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Answer 1

不知道你具体说什么。。。
我这里有个键盘类给你：
package
{
import flash.display.MovieClip;
import flash.events.Event;
import flash.events.KeyboardEvent;

/**
* ...
* @author
*/
public class Jianpan extends MovieClip
{
var left:Boolean = false;
var right:Boolean = false;
var up:Boolean = false;
var down:Boolean = false;

public function Jianpan()
{
this.addEventListener(Event.ADDED_TO_STAGE, addEvt)
this.addEventListener(Event.REMOVED_FROM_STAGE, offEvt)

}
function addEvt(e:Event)
{
stage.addEventListener(KeyboardEvent.KEY_DOWN, downEvt);
stage.addEventListener(KeyboardEvent.KEY_UP, upEvt);

}
function offEvt(e:Event)
{
stage.removeEventListener(KeyboardEvent.KEY_DOWN, downEvt);
stage.removeEventListener(KeyboardEvent.KEY_UP, upEvt);

}
function downEvt(event:KeyboardEvent):void
{
switch(event.keyCode)
{
case 37:

left = true;
break;
case 38:

up = true;
break
case 39:

right = true;
break
case 40:

down = true;
break
}
}
function upEvt(event:KeyboardEvent):void
{
switch(event.keyCode)
{
case 37:
left = false;
break;
case 38:
up = false;
break
case 39:
right = false;
break
case 40:
down = false;
break
}
}
}

}

再将你的元件链下面这个类：（里面有添加写鼠标拖动事件）
package
{
import flash.events.Event;
import flash.events.MouseEvent;

/**
* ...
* @author
*/
public class Renwu extends Jianpan
{

public function Renwu()
{
this.addEventListener(Event.ENTER_FRAME, evt);
this.addEventListener (MouseEvent.MOUSE_DOWN , md);
this.addEventListener (MouseEvent.MOUSE_UP , md);
}
function evt (e:Event):void
{
move()
}
function md (e:MouseEvent ):void
{
if (e.type == MouseEvent.MOUSE_DOWN)
{
this.startDrag ();
}
if (e.type == MouseEvent.MOUSE_UP)
{
this.stopDrag ();
}

}

function move()
{
if (left)
{
this.x-=5
}
if (right)
{
this.x+=5
}
if (up)
{
this.y-=5
}
if (down)
{
this.y +=5
}
}

}

}