Question

我是ActionScript的新手，我有一个问题。

我在课堂上，“敌人”。该类具有“碰撞”功能。我怎样才能与玩家在这堂课中留下的生命数量进行沟通？谢谢。

Answer 1

尝试这样的事情：

public class Game extends MovieClip {
   public var enemy:Enemy; //enemy can be a timeline instance
   public var player:Player //can also be a timeline instance
   public function Game() {
        super();
        //for this to work enemy must exist on frame one of the Game MC
        //and stay around for the rest of the MC's lifespan
        enemy.addEventListener(EnemyEvent.COLLISION, onEnemyCollision);
   }
   protected function onEnemyCollision(e:EnemyEvent):void {
      e.player.lives--;
   }
}

//the enemy!!!
public class Enemy extends Sprite {
   //I actually don't understand why this is a function on enemy.
   //I wouldn't have designed it this way.
   //What is calling it?
   public function collision(withPlayer:Player):void {
      dispatchEvent(new EnemyEvent(EnemyEvent.COLLISION, withPlayer));
   }
}

//the player
public class Player extends Sprite {
   public var lives:int=10;
}

//the enemy event
public class EnemyEvent extends Event {
   public static const COLLISION:String = 'Big badda boom.';//Fifth Element reference
   public var player:Player;
   public function EnemyEvent(type:String, player:Player) {
       super(type, true, true);
       this.player = player;
   }
   public function clone():Event {
      new EnemyEvent(type, player);
   }
}

如果你不想在第一帧上拥有玩家和敌人，请查看这篇文章，了解更深入地了解这些内容的工作原理：http://www.developria.com/2010/04/combining-the-timeline-with-oo.html。或者你可以编写代码来手动添加它们，但这太像工作了。

Actionscript类通信

1 个答案: