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public class GameEnter extends MovieClip
{
public function GameEnter()
{
addEventListener(MouseEvent.MOUSE_DOWN, shootBullet);
}
public var _bullet1:bullet = new bullet;
public var angleRadian = Math.atan2(mouseY - 300,mouseX - 300);
public var angleDegree = angleRadian * 180/Math.PI;
public function shootBullet(evt:MouseEvent)
{
_bullet1.x = 300;
_bullet1.y = 300;
_bullet1.angleRadian = Math.atan2(mouseY - 300,mouseX -300);
_bullet1.addEventListener(Event.ENTER_FRAME, bulletEnterFrame);
addChild(_bullet1);
}
public var speed1:int = 10;
public function bulletEnterFrame(evt:Event)
{
_bullet1.x += Math.cos(_bullet1.angleRadian) * speed1;
_bullet1.y += Math.sin(_bullet1.angleRadian) * speed1;
_bullet1.rotation = _bullet1.angleRadian*180/Math.PI;
checkHit();
if (_bullet1.x < 0 || _bullet1.x > 600 || _bullet1.y < 0 || _bullet1.y > 600)
{
removeChild(_bullet1);
_bullet1.removeEventListener(Event.ENTER_FRAME, bulletEnterFrame);
}
}
public function checkHit()
{
if(_bullet.hitTestObject(enemy))
{
trace("Enemy hit");
}
}
}
} 本質上發生的是它打印出「敵人命中」約10次。我想知道:我如何讓它只跟蹤「敵人擊中」一次? 我認爲問題是,對於子彈在敵人身上的每一幀,它都將其打印出來,我如何解決這個問題只打印一次?我最終將取代「痕跡(」敵人命中「);」用一個函數或其他東西。hitTestObject輸出多次?