Question

所以我正在关注超级马里奥的Brent Aureli教程，甚至在从git https://github.com/BrentAureli/SuperMario/blob/Mario-Tutorial-26/core/src/com/brentaureli/mariobros/Sprites/Mario.java

中提取代码之后

我的角色不跳！即使它左右运行！所以我注意到LibGDX正在使用新版本，所以我尝试了

 private TextureRegion marioStand;
    private Animation<TextureRegion> marioRun;
    private Animation<TextureRegion> marioJump;

这是构造函数

Array<TextureRegion> frames = new Array<TextureRegion>();
        //get run animation frames and add them to marioRun Animation
        for(int i = 1; i < 4; i++)
            frames.add(new TextureRegion(screen.getAtlas().findRegion("little_mario"), i * 16, 0, 16, 16));
       marioRun = new Animation(0.1f, frames);

        frames.clear();

        for(int i = 1; i < 4; i++)
            frames.add(new TextureRegion(screen.getAtlas().findRegion("big_mario"), i * 16, 0, 16, 32));
        bigMarioRun = new Animation(0.1f, frames);

        frames.clear();

        //get set animation frames from growing mario
        frames.add(new TextureRegion(screen.getAtlas().findRegion("big_mario"), 240, 0, 16, 32));
        frames.add(new TextureRegion(screen.getAtlas().findRegion("big_mario"), 0, 0, 16, 32));
        frames.add(new TextureRegion(screen.getAtlas().findRegion("big_mario"), 240, 0, 16, 32));
        frames.add(new TextureRegion(screen.getAtlas().findRegion("big_mario"), 0, 0, 16, 32));
        growMario = new Animation(0.2f, frames);
        frames.clear();
        for(int i = 4; i < 6; i++)
            frames.add(new TextureRegion(screen.getAtlas().findRegion("little_mario"), i * 80, 0, 16, 16));
        marioJump = new Animation(0.1f, frames);
        frames.clear();





 public TextureRegion getFrame(float dt){
 case JUMPING:
               // region = marioIsBig ? bigMarioJump :  marioJump;
                region = (TextureRegion) marioJump.getKeyFrame(stateTimer);
                break;
            case RUNNING:
                region = (TextureRegion) (marioIsBig ? bigMarioRun.getKeyFrame(stateTimer, true) : marioRun.getKeyFrame(stateTimer, true));
                break;

Answer 1

我检查了原始代码，无法在Mario.java的任何位置找到实际的跳转机制。我可以看看马里奥的垂直速度是否为0，它应该运行跳跃动画。所以，也许，如果坠落的物理到位并且你从悬崖上跑下来，你会看到跳跃的动画播放。

所以我猜你只需要对角色施加一些力量。类似b2Body.applyForceToCenter(0f,10f,true)或b2Body.setLinearVelocity(0f, 10f);的内容。这可以在您检查按键时进入渲染方法，或者如果您使用的是InputProcessor，则可以使用keyDown方法。

LibGDX，超级马里奥教程

1 个答案: