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问libGDX快速会诊
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Stack Overflow用户

提问于 2014-10-07 05:58:36

回答 2查看 87关注 0票数 0

我需要做的是，当分数的“例子10”，球的速度提高，当分数的“例子20”，球的速度再次提高，等等。我不知道我是在球课还是在GameScreen课上这样做，我不知道该怎么做。谢谢你的帮助！

public class Ball {

    //THE SPEED OF THE BALL
    private static final float SPEED=1100;

    //THE POINTS IS 
    puntuacion =0;

    //AND THE METHOD WHEN THE POINTS IS INCREAMENTING
    private void updatePuntuacion(){
        if(ball.getBordes().overlaps(Lpaddle.getBordes())) { 
            puntuacion = puntuacion + 1;
            if(puntuacion > puntuacionMaxima)
            puntuacionMaxima = puntuacion;
        }

        if(ball.getBordes().x <= 0) 
            sonidoex.play();

        if(ball.getBordes().x <= 0)
            puntuacion =0;

        if(ball.getBordes().x <=0)
            Gdx.input.vibrate(1000);

        if(ball.getBordes().x <=0)
            Screens.juego.setScreen(Screens.MAINSCREEN);

        ball.comprobarPosicionBola();
    }
}

编辑：

这是我的GameScreen课。

public class GameScreen extends AbstractScreen {

    private SpriteBatch batch;
    private Texture texture;
    private Paddle Lpaddle, Rpaddle;
    private Ball ball;
    private BitmapFont font;
    private int puntuacion, puntuacionMaxima;
    private Preferences preferencias;
    private Music music;
    private Sound sonidoex;

    public GameScreen(Main main) {
        super(main);
            preferencias = Gdx.app.getPreferences("PuntuacionAppPoints");   
            puntuacionMaxima = preferencias.getInteger("puntuacionMaxima");
            music =Gdx.audio.newMusic(Gdx.files.internal("bgmusic.mp3"));
            music.play();
            music.setVolume((float) 0.3);
            music.setLooping(true);
            sonidoex = Gdx.audio.newSound(Gdx.files.internal("explosion5.wav"));
    }

    public void show(){
        batch = main.getBatch();
        texture = new Texture(Gdx.files.internal("spacebg.png"));

        Texture texturaBola = new Texture(Gdx.files.internal("bola.png"));
        ball = new Ball(Gdx.graphics.getWidth() / 2 - texturaBola.getWidth() / 2, Gdx.graphics.getHeight() / 2 - texturaBola.getHeight() / 2);
        Texture texturaPala= new Texture(Gdx.files.internal("pala.png"));
        Lpaddle = new LeftPaddle(80, Gdx.graphics.getHeight()/2 -texturaPala.getHeight() /2);
        Rpaddle = new RightPaddle(Gdx.graphics.getWidth() -100, Gdx.graphics.getHeight()/2 - texturaPala.getHeight() /2, ball);
        font = new BitmapFont(Gdx.files.internal("pointsfont.tf.fnt"), Gdx.files.internal("pointsfont.tf.png"), false);
        puntuacion = 0;    
    }

    public void render(float delta){
        Gdx.gl.glClearColor(0, 0, 0, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
        updatePuntuacion();
        Lpaddle.update();
        Rpaddle.update();
        ball.update(Lpaddle, Rpaddle);
        batch.begin();
        batch.draw(texture, 0, 0,texture.getWidth(), texture.getHeight());
        ball.draw(batch);
        Lpaddle.draw(batch);
        Rpaddle.draw(batch);
        font.draw(batch, "Points: " + Integer.toString(puntuacion), Gdx.graphics.getWidth() / 4 ,Gdx.graphics.getHeight() - 5);
        font.draw(batch, "High score: " + Integer.toString(puntuacionMaxima),Gdx.graphics.getWidth() - Gdx.graphics.getWidth() / 4 ,Gdx.graphics.getHeight() - 5);
        batch.end();
    }

    private void updatePuntuacion(){
        if(ball.getBordes().overlaps(Lpaddle.getBordes())) { 
            puntuacion = puntuacion + 1;
            if(puntuacion > puntuacionMaxima)
            puntuacionMaxima = puntuacion;
        }

        if(ball.getBordes().x <= 0) 
            sonidoex.play();

        if(ball.getBordes().x <= 0)
            puntuacion =0;

        if(ball.getBordes().x <=0)
            Gdx.input.vibrate(1000);

        if (puntuacion % 10 == 0){
             SPEED = 200;
        }

        if(ball.getBordes().x <=0)
            Screens.juego.setScreen(Screens.MAINSCREEN);

        ball.comprobarPosicionBola();
    }

    public void hide(){
        font.dispose();
        texture.dispose();
    }

    @Override
    public void dispose(){
        preferencias.putInteger("puntuacionMaxima", puntuacionMaxima);
        preferencias.flush();
    }

    public void resize(int width, int height){      
        float widthImage = texture.getWidth();
        float heightImage = texture.getHeight();
        float r = heightImage / widthImage;
        if(heightImage > height) { 
            heightImage = height;
            widthImage = heightImage / r;
        }

        if(widthImage > width) { 
            widthImage = width;
            heightImage = widthImage * r;
        }
    }
}

android

eclipse

libgdx

java

回答 2

Stack Overflow用户

回答已采纳

发布于 2014-10-07 07:08:03

我需要50个声誉来评论，所以我会张贴一个答案，并试图使它尽可能地有用。

首先，我不太确定你的问题，但据我所知，当puntuacion达到一定值(10、20等)时，你想要提高你的球的速度。

您必须做的第一件事是从您的final变量中删除SPEED，因为final原语只能设置一次，因此不能在以后更改它。

至于速度更新，如果您想在punctuacion的特定值下进行更新，那么只需执行以下操作

if(punctuacion == 10 || punctuacion == 17) { // etc
    speed += x; // x being the value you want to increase the speed by
}

或者，如果您希望每增加10次更新速度，则可以这样做。

if (punctuacion % 10 == 0){
    speed += x;
}

请注意，对于第二个示例，当punctuacion为0时，if语句将返回true，因此，如果有必要，可以使用它。

至于将这些代码放在哪里，这确实取决于您的类，而且您肯定没有发布足够的代码来帮助您，但是我最好的猜测是在您增加punctuacion之后将其放在正确的位置，因为我假设您希望在punctuacion更新之后立即执行这个球的速度更新检查。

票数 1

Stack Overflow用户

发布于 2014-10-07 07:35:25

这是我的GameScreen课。

public class GameScreen extends AbstractScreen {

    private SpriteBatch batch;
    private Texture texture;
    private Paddle Lpaddle, Rpaddle;
    private Ball ball;
    private BitmapFont font;
    private int puntuacion, puntuacionMaxima;
    private Preferences preferencias;
    private Music music;
    private Sound sonidoex;

    public GameScreen(Main main) {
        super(main);
            preferencias = Gdx.app.getPreferences("PuntuacionAppPoints");   
            puntuacionMaxima = preferencias.getInteger("puntuacionMaxima");
            music =Gdx.audio.newMusic(Gdx.files.internal("bgmusic.mp3"));
            music.play();
            music.setVolume((float) 0.3);
            music.setLooping(true);
            sonidoex = Gdx.audio.newSound(Gdx.files.internal("explosion5.wav"));
    }


    public void show(){
        batch = main.getBatch();
        texture = new Texture(Gdx.files.internal("spacebg.png"));

        Texture texturaBola = new Texture(Gdx.files.internal("bola.png"));
        ball = new Ball(Gdx.graphics.getWidth() / 2 - texturaBola.getWidth() / 2, Gdx.graphics.getHeight() / 2 - texturaBola.getHeight() / 2);
        Texture texturaPala= new Texture(Gdx.files.internal("pala.png"));
        Lpaddle = new LeftPaddle(80, Gdx.graphics.getHeight()/2 -texturaPala.getHeight() /2);
        Rpaddle = new RightPaddle(Gdx.graphics.getWidth() -100, Gdx.graphics.getHeight()/2 - texturaPala.getHeight() /2, ball);
        font = new BitmapFont(Gdx.files.internal("pointsfont.tf.fnt"), Gdx.files.internal("pointsfont.tf.png"), false);
        puntuacion = 0;


    }


    public void render(float delta){
        Gdx.gl.glClearColor(0, 0, 0, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
        updatePuntuacion();
        Lpaddle.update();
        Rpaddle.update();
        ball.update(Lpaddle, Rpaddle);
        batch.begin();
        batch.draw(texture, 0, 0,texture.getWidth(), texture.getHeight());
        ball.draw(batch);
        Lpaddle.draw(batch);
        Rpaddle.draw(batch);
        font.draw(batch, "Points: " + Integer.toString(puntuacion), Gdx.graphics.getWidth() / 4 ,Gdx.graphics.getHeight() - 5);
        font.draw(batch, "High score: " + Integer.toString(puntuacionMaxima),Gdx.graphics.getWidth() - Gdx.graphics.getWidth() / 4 ,Gdx.graphics.getHeight() - 5);
        batch.end();
    }

    private void updatePuntuacion(){
        if(ball.getBordes().overlaps(Lpaddle.getBordes())) { 
            puntuacion = puntuacion + 1;
            if(puntuacion > puntuacionMaxima)
            puntuacionMaxima = puntuacion;

        }
        if(ball.getBordes().x <= 0) 
            sonidoex.play();

        if(ball.getBordes().x <= 0)
        puntuacion =0;

        if(ball.getBordes().x <=0)
            Gdx.input.vibrate(1000);

        if (puntuacion % 10 == 0){
             SPEED = 200;
        }

        if(ball.getBordes().x <=0)
            Screens.juego.setScreen(Screens.MAINSCREEN);

        ball.comprobarPosicionBola();
        }





    public void hide(){
        font.dispose();
        texture.dispose();

    }

    @Override
    public void dispose(){
        preferencias.putInteger("puntuacionMaxima", puntuacionMaxima);
        preferencias.flush();
    }

    public void resize(int width, int height){      
        float widthImage = texture.getWidth();
        float heightImage = texture.getHeight();
        float r = heightImage / widthImage;
        if(heightImage > height) { 
            heightImage = height;
            widthImage = heightImage / r;
        }
        if(widthImage > width) { 
            widthImage = width;
            heightImage = widthImage * r;
        }


    }

}

票数 0

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/26229446

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