Question

我正在制作一个旧的超级马里奥的克隆，当我的小马里奥从下面击中它时，我正在试图摇动砖瓦。这个概念取自Brent Aureli的一篇很棒的libgdx教程以及他编写/展示的所有内容，但是当我做这个（看似很小的）修改时，修改本身就很奇怪。

即，当小马里奥击中瓷砖（任何砖瓦）时，所有这种瓷砖都会得到这种偏移。根据我的理解，访问权限为getCell().getTile().setOffsetY(value)，这应该是

获得单个细胞 - ＆gt;在该单元格中获取平铺 - ＆gt;将offset设置为给定单元格中的这个tile。文档还建议它应该这样工作：

https://libgdx.badlogicgames.com/nightlies/docs/api/

当大马里奥击中平铺按预期工作时，将tile替换为null，因此我不明白为什么getCell.getTile的方法没有。

最后，我意识到细胞是不动的，我想要的只是实际纹理的纯粹化妆品移动半秒左右 - 这是可能的，但在当前状态下它会抵消所有类似的瓷砖

为了它的乐趣我

    public class Brick extends InteractiveTile {

    private static TiledMapTileSet tileSet;

    public Brick(PlayScreen screen, MapObject object) {
        super(screen, object);
        tileSet = screen.getMap().getTileSets().getTileSet("tileset_gutter");
        fixture.setUserData(this);
        setCategoryFilter(SuperMario.BRICK_BIT);
    }

    @Override
    public void onHeadHit(Mario mario) {
        if(mario.isBig()){
            SuperMario.manager.get("audio/breakblock.wav", Sound.class).play();
            setCategoryFilter(SuperMario.DESTROYED_BIT);

            getCell().setTile(null);
        }
        else {
            SuperMario.manager.get("audio/bump.wav", Sound.class).play();
// DOES THE EXACT SAME AS LATER 3 LINES
//            getCell().getTile().setOffsetY(2);

            getCell().setTile(tileSet.getTile(28)); //this can change texture of individual tile.

            TiledMapTile tile = getCell().getTile();
            tile.setOffsetY(2);
            getCell().setTile(tile);
        }

    }
}

InteractiveTile：

public abstract class InteractiveTile {

    private World world;
    private TiledMap map;
    private TiledMapTile tile;
    private Rectangle bounds;

    protected Body body;
    protected final Fixture fixture;
    protected PlayScreen screen;
    protected MapObject object;


    public InteractiveTile(PlayScreen screen, MapObject object){
        this.screen = screen;
        this.world = screen.getWorld();
        this.map = screen.getMap();
        this.object = object;
        this.bounds = ((RectangleMapObject)object).getRectangle();

        BodyDef bdef = new BodyDef();
        FixtureDef fdef = new FixtureDef();
        PolygonShape shape = new PolygonShape();
        bdef.type = BodyDef.BodyType.StaticBody;
        bdef.position.set(
                (bounds.getX()+ bounds.getWidth()/2)/ SuperMario.PPM,
                (bounds.getY() + bounds.getHeight()/2)/SuperMario.PPM);
        body = world.createBody(bdef);
        shape.setAsBox(
                (bounds.getWidth()/2)/SuperMario.PPM,
                (bounds.getHeight()/2)/SuperMario.PPM);            fdef.shape = shape;
        fixture = body.createFixture(fdef);
    }

    public abstract void onHeadHit(Mario mario);

    public TiledMapTileLayer.Cell getCell(){
        TiledMapTileLayer layer = (TiledMapTileLayer) map.getLayers().get(1);
        return layer.getCell(
                //REVERT SCALING (PPM) AND by tile size
                (int)(body.getPosition().x * SuperMario.PPM / 16),
                (int)(body.getPosition().y * SuperMario.PPM / 16));
    }

    public void setCategoryFilter(short filterBit){
        Filter filter = new Filter();
        filter.categoryBits = filterBit;
        fixture.setFilterData(filter);
    }
}

此代码中是否有错误，或者它是引擎的限制？

PS - 原始（未修改）文件可以在Brent Aurelis github网站上找到：

https://github.com/BrentAureli/SuperMario

在java中摇动单个图块（libgdx + TiledMap）

0 个答案: