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일부 역 기구학 및 상태 시스템과 관련된 기본적인 스네이크 게임을 개발하려고합니다. 나는 뱀의 첫 번째 세그먼트가 특정 "마우스"와 상호 작용할 때 그것을 얻으려고 노력하고 있습니다, 그것은 사라집니다. 그러나, 내가 그것을 할 때 작동하지 않습니다 및 인수 ArgumentError 결국 : 오류 # 2025 : 제공된 DisplayObject 호출자의 자식 있어야합니다.ArgumentError : 스테이지에서 자식 제거
여기 내 코드입니다 :
package
{
\t import agent.Agent;
\t import flash.display.Sprite;
\t import flash.display.StageAlign;
\t import flash.display.StageScaleMode;
\t import flash.events.Event;
\t import flash.events.MouseEvent;
\t import flash.events.KeyboardEvent;
\t import flash.geom.Point;
\t public class Main extends Sprite
\t {
\t \t private var Agents:Vector.<Agent>;
\t \t \t \t private var segments:Array;
\t \t private var numSegments:uint = 150;
\t \t private var player:Point = new Point (15, 15)
\t \t public function Main():void
\t \t {
\t \t \t if (stage) init();
\t \t \t else addEventListener(Event.ADDED_TO_STAGE, init);
\t \t }
\t \t
\t \t private function init(e:Event = null):void
\t \t {
\t \t \t stage.align = StageAlign.TOP_LEFT;
\t \t \t stage.scaleMode = StageScaleMode.NO_SCALE;
\t \t \t segments = new Array();
\t \t \t for(var i:uint = 0; i < numSegments; i++)
\t \t \t {
\t \t \t \t var segment:Segment = new Segment (5, 10);
\t \t \t \t addChild(segment);
\t \t \t \t segments.push(segment);
\t \t \t }
\t \t \t //updatePoint();
\t \t \t addEventListener(Event.ENTER_FRAME, onEnterFrame);
\t \t \t removeEventListener(Event.ADDED_TO_STAGE, init);
\t \t \t stage.scaleMode = StageScaleMode.NO_SCALE;
\t \t \t stage.align = StageAlign.TOP_LEFT;
\t \t \t // entry point
\t \t \t graphics.beginFill(0xeeeeee);
\t \t \t graphics.drawRect(0, 0, stage.stageWidth, stage.stageHeight);
\t \t \t
\t \t \t Agents = new Vector.<Agent>();
\t \t \t addEventListener(Event.ENTER_FRAME, gameloop);
\t \t \t for (var x:int = 0; x < 10; x++)
\t \t \t {
\t \t \t \t var a:Agent = new Agent();
\t \t \t \t addChild(a);
\t \t \t \t Agents.push(a);
\t \t \t \t a.x = Math.random() * 10;
\t \t \t \t a.y = Math.random() * 10;
\t \t \t }
\t \t \t stage.addEventListener(MouseEvent.CLICK, createAgent);
\t \t }
\t \t
\t \t private function createAgent(e:MouseEvent):void
\t \t {
\t \t \t var a:Agent = new Agent();
\t \t \t stage.addChild(a);
\t \t \t Agents.push(a);
\t \t \t a.x = mouseX;
\t \t \t a.y = mouseY;
\t \t }
\t \t
\t \t private function gameloop(e:Event):void
\t \t {
\t \t \t for each (var a: Agent in Agents) {
\t \t \t \t a.update();
\t \t \t \t trace ("Follow me on Twitter.");
\t \t \t \t for each(var target: Segment in segments)
\t \t \t \t {
\t \t \t \t \t if (target.hitTestPtarget.x, a.y + target.y, true))
\t \t \t \t \t {
\t \t \t \t \t \t stage.removeChild(a);
\t \t \t \t \t }
\t \t \t \t }
\t \t \t \t
\t \t \t }
\t \t }
\t \t private function onEnterFrame(event:Event):void
\t \t {
\t \t \t drag(segments[0], player.x, player.y);
\t \t \t stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDown);
\t \t \t for(var i:uint = 1; i < numSegments; i++)
\t \t \t {
\t \t \t \t var segmentA:Segment = segments[i];
\t \t \t \t var segmentB:Segment = segments[i - 1];
\t \t \t \t drag(segmentA, segmentB.x, segmentB.y);
\t \t \t }
\t \t }
\t \t private function keyDown (evt: KeyboardEvent): void {
\t \t \t //87=w 68=d 83=s 65=a
\t \t \t if (evt.keyCode == 87)
\t \t \t {
\t \t \t \t player.y-=50;
\t \t \t }
\t \t \t else if (evt.keyCode == 83)
\t \t \t {
\t \t \t \t player.y+=50;
\t \t \t }
\t \t \t else if (evt.keyCode == 68)
\t \t \t {
\t \t \t \t player.x+=50;
\t \t \t }
\t \t \t else if (evt.keyCode == 65)
\t \t \t {
\t \t \t \t player.x-=50;
\t \t \t }
\t \t \t trace (player.x + " " + player.y);
\t \t }
\t \t private function drag(segment:Segment, xpos:Number, ypos:Number):void
\t \t {
\t \t \t
\t \t \t var dx:Number = xpos - segment.x;
\t \t \t var dy:Number = ypos - segment.y;
\t \t \t var angle:Number = Math.atan2(dy, dx);
\t \t \t segment.rotation = angle * 180/Math.PI;
\t \t \t
\t \t \t var w:Number = segment.getPin().x - segment.x;
\t \t \t var h:Number = segment.getPin().y - segment.y;
\t \t \t segment.x = xpos - w;
\t \t \t segment.y = ypos - h;
\t \t }
\t \t
\t }
}내가 동일한 주제와 다른 게시물을보고 시도했다, 그러나 나는 단지 내가 잘못 이해하지 않습니다. 어떤 도움이라도 대단히 감사하겠습니다!