Question

我必须创建一个游戏，其中有一个玩家精灵和几个（大约30个）其他精灵在屏幕上随机移动而不会在其内部发生碰撞。我在避免碰撞时遇到问题，因为当检测到碰撞时，所有移动的精灵都被锁定。下面是我的代码。在我的代码中，我创建了两个类MainActivity（这是扩展BaseGameActivity的主类，使用AnimatedSprites创建大约30 NewSprite class包含一个NewSprite对象的静态数组列表'playerSprite'（大约30个随机创建的对象），第二个是NewSprite（扩展AnimatedSprite并重载方法onManagedUpdate()以防止这些移动AnimatedSprites离开屏幕并与他们发生碰撞。）

我只展示了NewSprite类..

public class NewSprite extends AnimatedSprite{
public PhysicsHandler physicsHandler;
Random randPos;

public NewSprite(final float pX, final float pY, final ITiledTextureRegio pTiledTextureRegion, final VertexBufferObjectManager pVertexBufferObjectManager) {
    super(pX, pY, pTiledTextureRegion, pVertexBufferObjectManager);


    randPos = new Random();
    float x1;
    float y1;
    while((x1 = randPos.nextFloat()) < 0.8f);
    while((y1 = randPos.nextFloat()) < 0.8f);
    if(randPos.nextInt() % 2 == 0)
        x1 *= -1;
    if(randPos.nextInt() % 2 == 0)
        y1 *= -1;

    physicsHandler = new PhysicsHandler(this);
    this.registerUpdateHandler(physicsHandler);

    physicsHandler.setVelocity(x1 * 100, y1 * 100);
}

@Override
protected void onManagedUpdate(float pSecondsElapsed) {
    // TODO Auto-generated method stub

    if(this.mX < 0){
        this.move++;
        float x2,y2;
        while((x2 = randPos.nextFloat()) < 0.8f);
        while((y2 = randPos.nextFloat()) < 0.8f);
        if(randPos.nextInt() % 2 == 0)
            y2 *= -1;
        physicsHandler.setVelocity( x2*40,  y2*40);
        this.prevX = this.mX;
        this.prevY = this.mY;
    }
    else if(this.mY < 0){
        this.move++;
        float x2,y2;
        while((x2 = randPos.nextFloat()) < 0.8f);
        while((y2 = randPos.nextFloat()) < 0.8f);
        if(randPos.nextInt() % 2 == 0)
            x2 *= -1;
        physicsHandler.setVelocity( x2*40,  y2*40);
        this.prevX = this.mX;
        this.prevY = this.mY;
    }
    else if(this.mX > (MainActivity.CAMERA_WIDTH - MainActivity.MONSTER_WIDTH)){
        this.move++;
        float x2,y2;
        while((x2 = randPos.nextFloat()) < 0.8f);
        while((y2 = randPos.nextFloat()) < 0.8f);
        x2 *= -1;
        if(randPos.nextInt() % 2 == 0)
            y2 *= -1;
        physicsHandler.setVelocity( x2*40,  y2*40);
        this.prevX = this.mX;
        this.prevY = this.mY;
    }
    else if(this.mY > (MainActivity.CAMERA_HEIGHT - MainActivity.MONSTER_HEIGHT)){
        this.move++;
        float x2,y2;
        while((x2 = randPos.nextFloat()) < 0.8f);
        while((y2 = randPos.nextFloat()) < 0.8f);
        if(randPos.nextInt() % 2 == 0)
            x2 *= -1;
        y2 *= -1;
        physicsHandler.setVelocity( x2*40,  y2*40);
        this.prevX = this.mX;
        this.prevY = this.mY;
    }


    for(int i=0 ; i < MainActivity.playerSprite.size(); i++){

        if(( MainActivity.playerSprite.get(i)).collidesWith(this) || this.collidesWith(MainActivity.playerSprite.get(i))){

            float x2, y2;
            while((x2 = randPos.nextFloat()) < 0.8f);
            while((y2 = randPos.nextFloat()) < 0.8f);

            if(randPos.nextInt() % 2 == 0)
                x2 *= -1;
            if(randPos.nextInt() % 2 == 0)
                y2 *= -1;

            this.physicsHandler.setVelocity( x2*100,  y2*100);
            break;
        }
    }   
    super.onManagedUpdate(pSecondsElapsed);
}

Answer 1

您是否尝试将代码放在super.onManagedUpdate(pSecondsElapsed);之后？

在onManagedUpdate方法中设置碰撞后的速度时，AndEngine sprite会被锁定

1 个答案: