AndEngine Box2D 强制移动下落的角色

发布于 2024-12-21 02:01:24 字数 638 浏览 3 评论 0原文

我正在开发一款横向卷轴游戏，例如《超级马里奥》。我正在尝试使用 setLinearVelocity() 移动角色，但这似乎无法正常工作。当角色跌倒然后开始移动时，他不会继续跌倒而只会移动。

这是一个代码片段：

Sprite backward = new Sprite( -50, CAMERA_HEIGHT - 170, backwardr){
    @Override
    public boolean onAreaTouched(TouchEvent pEvent, float pX, float pY){
        if(!pEvent.isActionUp()){
            charactersprite.getTextureRegion().setFlippedHorizontal(true);
            body.setLinearVelocity(new Vector2(3,0)); // There's the problem

        }else{
            body.setLinearVelocity(new Vector2(0,0)); // Don't look at there
        }
        return false;
    }
};

有人可以帮助我吗？

原文

I'm developing a side-scroller game like Super Mario. I'm trying to move a character using setLinearVelocity(), but this doesn't seem to work properly. When the character falls and then starts moving, he doesn't continue to fall but only moves.

This is a code snippet:

Sprite backward = new Sprite( -50, CAMERA_HEIGHT - 170, backwardr){
    @Override
    public boolean onAreaTouched(TouchEvent pEvent, float pX, float pY){
        if(!pEvent.isActionUp()){
            charactersprite.getTextureRegion().setFlippedHorizontal(true);
            body.setLinearVelocity(new Vector2(3,0)); // There's the problem

        }else{
            body.setLinearVelocity(new Vector2(0,0)); // Don't look at there
        }
        return false;
    }
};

Could anyone please help me?

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断爱 2024-12-28 02:01:24

我用以下方法修复了它：

Sprite backward = new Sprite( -50, CAMERA_HEIGHT - 170, backwardr){
    @Override
    public boolean onAreaTouched(TouchEvent pEvent, float pX, float pY){
    if(!pEvent.isActionUp()){
        charactersprite.getTextureRegion().setFlippedHorizontal(true);
        body.setLinearVelocity(new Vector2(3,body.getLinearVelocity.y)); // There's the problem

    }else{
        body.setLinearVelocity(new Vector2(0,getLinearVelocity.y)); // Don't look at there
    }
    return false;
}
};

I fixed it with :

Sprite backward = new Sprite( -50, CAMERA_HEIGHT - 170, backwardr){
    @Override
    public boolean onAreaTouched(TouchEvent pEvent, float pX, float pY){
    if(!pEvent.isActionUp()){
        charactersprite.getTextureRegion().setFlippedHorizontal(true);
        body.setLinearVelocity(new Vector2(3,body.getLinearVelocity.y)); // There's the problem

    }else{
        body.setLinearVelocity(new Vector2(0,getLinearVelocity.y)); // Don't look at there
    }
    return false;
}
};

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