当我将libGDX摄像机的位置设置为播放器x和y时，为什么播放器会移出屏幕? [英] Why does my player move off the screen when I set the libGDX camera's position to the players x and y?

问题描述

在过去的几天里，我一直在不停地移动，仅用一个摄像头移动播放器，并使摄像头跟随播放器的x和y.当我进行搜索时，我发现的是移动播放器并将相机的x和y设置为该值.但是我有一个问题，我的播放器没有停留在屏幕中间，确实很烦人.如果有人可以帮我，那太好了.这是代码.

for the past few days i have been tinkering around with moving the player with just one camera and having the camera follow the player's x and y. When i searched this up all i found was to move the player and set the camera's x and y to that. But i am having a problem, my player does not stay in the middle of the screen and it is really anoying. If anyone could hep me that would be great. Here is the code.

在创建中

    cam = new OrthographicCamera();
    cam.setToOrtho(false, Main.WIDTH, Main.HEIGHT);

    batch = new SpriteBatch();
    batch.setProjectionMatrix(cam.combined);

在更新中；

    cam.position.set(Player.getX() + Main.WIDTH / 2, Player.getY() + Main.HEIGHT / 2, 0);
    cam.update();

运动中

    if (Gdx.input.isKeyPressed(Keys.W) || Gdx.input.isKeyPressed(Keys.UP)) {

        Player.setVelY(Player.SPEED);

    } else if (Gdx.input.isKeyPressed(Keys.S)
            || Gdx.input.isKeyPressed(Keys.DOWN)) {

        Player.setVelY(-Player.SPEED);

    } else {

        Player.setVelY(0);

    }

    if (Gdx.input.isKeyPressed(Keys.A) || Gdx.input.isKeyPressed(Keys.LEFT)) {

        Player.setVelX(-Player.SPEED);
        Player.dir = Player.Direction.LEFT;

    } else if (Gdx.input.isKeyPressed(Keys.D)
            || Gdx.input.isKeyPressed(Keys.RIGHT)) {

        Player.setVelX(Player.SPEED);
        Player.dir = Player.Direction.RIGHT;

    } else {

        Player.setVelX(0);
        Player.dir = null;

    }

推荐答案

我建议您将相机位置设置为播放器Sprite的位置.我不知道您的Player.getX()返回什么，但是它可能应该返回Sprite表示玩家的x坐标. y坐标也是如此.

I'd suggest you just set the camera position to the position of the Sprite of the player. I can't tell what your Player.getX() returns but it should probably return the x-coordinate of the Sprite denoting the player. The same goes for the y-coordinate.

cam.position.set(Player.getX() + Main.WIDTH / 2, Player.getY() + Main.HEIGHT / 2, 0);

将会

cam.position.set(Player.getX() + Player.getWidth() / 2, Player.getY() + Player.getHeight() / 2, 0);

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