应绘制字符串 - 没有错误，使用矢量

Question

我希望在条件语句中出现游戏结束画面，下面的代码不会产生任何错误或白色字母。它应该采用白色文本并将其显示在黑色背景上，但它不起作用。我什至使用 Vector3 确保坐标正确。

package com.mygdx.game;

import java.util.Random;

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.ApplicationListener;
import com.badlogic.gdx.Game;
import com.badlogic.gdx.Input;
//import com.mygdx.game.IsFinished;




import com.badlogic.gdx.Screen;

import java.util.Random;
import java.util.Timer;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.g2d.Animation;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.Sprite;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer.ShapeType;
import com.badlogic.gdx.math.Rectangle;
import com.badlogic.gdx.math.Vector3;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.Label;
import com.badlogic.gdx.scenes.scene2d.ui.Label.LabelStyle;
import com.mygdx.game.*;

class GameOverScreen implements Screen{

    Label gameoverstring;

    private Stage stage;;
    SpriteBatch spritebatch;

    int placex=0, placey=0;




    @Override
    public void show() {



        stage = new Stage();
        BitmapFont white = new BitmapFont(Gdx.files.internal("new.fnt"), false);
        LabelStyle headingStyle = new LabelStyle(white, Color.WHITE);
        gameoverstring = new Label("game ovaaaa!", headingStyle);
        gameoverstring.setFontScale(3);

        stage.addActor(gameoverstring);

    }


    @Override
    public void render(float delta) {
        Vector3 placeholder = new Vector3(placex, placey, 0);


        show();
        //gameoverstring.setPosition(0, 0);
        Gdx.gl.glClearColor(0, 0, 0, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
        gameoverstring.setPosition(placeholder.x, placeholder.y);
        stage.act(delta);

        stage.draw();
        System.out.println(gameoverstring.getX()+" "+gameoverstring.getY());

    }

Answer 1

清理代码后，它可以正常使用我的字体。

相关代码：

private Stage stage;

// Called automatically once for init objects
@Override
public void show() { 
    stage = new Stage();

    stage.setDebugAll(true); // Set outlines for Stage elements for easy debug

    BitmapFont white = new BitmapFont(Gdx.files.internal("new.fnt"), false);
    LabelStyle headingStyle = new LabelStyle(white, Color.WHITE);
    Label gameoverstring = new Label("game ovaaaa!", headingStyle);

    stage.addActor(gameoverstring);

}

// Called every frame so try to put no object creation in it
@Override
public void render(float delta) { 
    Gdx.gl.glClearColor(0, 0, 0, 1);
    Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

    stage.draw();

    stage.act(delta);

}

注意标签应该在左下角可见。

因此，如果您仍然看不到文字，那么我猜您的字体有问题。也许你的 *.png 中的字体是黑色的，那么我认为 libGdx 无法将字符着色为白色并且它们保持黑色。猜猜 libGdx 通过乘以这些值来给它们着色，并且 0*x 总是 0。要测试它，您可以将 Gdx.gl.glClearColor(0, 0, 0, 1); 更改为绿色或其他内容。

您还可以查看 setDebugAll(true) 方法中的绿色边界线是否可见。

应绘制字符串 - 没有错误，使用矢量

string should be drawn - no erros, using vector

java

graphics

android

libgdx