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[英][AS3][Nape Physics] How to access associated object of a Nape body in a InteractionListener?
[英]Not Displaying Nape Body
我把這兩個放在同一個主班。 現在有Main.as和MainChar.as
編譯時不顯示任何錯誤,但也不顯示該對象:c
這是我第一次將代碼分成不同的類。 我只是弄清楚了英雄創作課應該有什么,應該留在Main中。
package
{
import flash.display.Sprite;
import flash.events.Event;
import nape.geom.Vec2;
import nape.phys.Body;
import nape.phys.BodyList;
import nape.space.Space;
import MainChar;
public class Main extends Sprite
{
public var gravity:Number = 600;
public var space:Space = new Space(new Vec2(0, gravity));
public var hero:MainChar = new MainChar();
public function Main():void
{
hero.createMainCharacter(stage.stageWidth/2, stage.stageHeight/2, 50, 50);
addEventListener(Event.ENTER_FRAME, update);
}
private function update(e:Event):void
{
space.step(1 / stage.frameRate, 10, 10);
var bodies:BodyList = space.bodies;
for (var i:int = 0; i < bodies.length; i++)
{
var body:Body=bodies.at(i);
if (body.userData.sprite != null)
{
body.userData.sprite.x = body.position.x;
body.userData.sprite.y = body.position.y;
body.userData.sprite.rotation=(body.rotation*180/Math.PI)%360;
}
}
}
}
}
英雄創造者類:
package
{
import flash.display.Graphics;
import flash.display.Sprite;
import nape.geom.Vec2;
import nape.phys.Body;
import nape.phys.BodyType;
import nape.shape.Polygon;
import nape.space.Space;
public class MainChar extends Sprite
{
public var space:Space = new Space(new Vec2(0, 600));
public function MainChar():void
{
}
public function createMainCharacter(x:Number, y:Number, width:Number, height:Number):void
{
var mainChar:Body = new Body(BodyType.DYNAMIC);
var mainCharShape:Polygon = new Polygon(Polygon.box(width, height));
mainChar.shapes.add(mainCharShape);
mainChar.position.setxy(x, y);
mainChar.space = space;
var mainCharSprite:Sprite = new Sprite();
mainCharSprite.graphics.beginFill(0x000000);
mainCharSprite.graphics.drawRect( -width/2, -height/2, width, height);
mainCharSprite.graphics.endFill;
addChild(mainCharSprite);
mainChar.userData.sprite = mainCharSprite;
addChild(mainChar.userData.sprite);
}
}
}
您需要將hero
添加為Main
Sprite EG的子代:
public function Main():void
{
hero.createMainCharacter(stage.stageWidth/2, stage.stageHeight/2, 50, 50);
addEventListener(Event.ENTER_FRAME, update);
addChild(hero);
}
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