定義後にJava文字列が返される

Question

タイトルには、Javaを使用していて、以前に設定したとしても実行時にnullを返す文字列に問題があります。私はLibGDXを使用していますが、現時点ではそれほど複雑ではありませんが、これは一見単純です。それとも、私はちょうど疲れています。

は、ここでは、コードです：

 package com.jett.game; 

import java.util.ArrayList; 

import com.badlogic.gdx.Gdx; 
import com.badlogic.gdx.Input.Keys; 
import com.badlogic.gdx.Screen; 
import com.badlogic.gdx.graphics.GL20; 
import com.badlogic.gdx.graphics.OrthographicCamera; 
import com.badlogic.gdx.graphics.Texture; 
import com.badlogic.gdx.graphics.g2d.BitmapFont; 
import com.badlogic.gdx.graphics.g2d.Sprite; 
import com.badlogic.gdx.graphics.g2d.SpriteBatch; 
import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator; 
import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator.FreeTypeFontParameter; 
import com.badlogic.gdx.utils.Array; 

public class GameScreen implements Screen{ 

    public OrthographicCamera cam; 
    public Player player; 

    public SpriteBatch mainBatch; 

    public Array<Sprite> fireSprites; 
    public Sprite bartableSprite; 
    public Texture choiceBanner; 
    public Texture blackboardTex; 

    public boolean paymentChoice; 

    public FreeTypeFontGenerator fontGenerator; 
    public FreeTypeFontParameter fontParameter; 
    public BitmapFont font; 

    public int shopMoney = 3000; 
    public float dayTime; 
    public float fireSpriteIndex; 

    public Customer customer; 

    public ArrayList<Favor> favors; 
    // THERE SHOULD ONLY BE THREE FAVORS AT ONCE. IT WONT BREAK OTHERWISE, BUT IT WILL BECOME DIFFICULT 

    public GameScreen(){ 
     favors = new ArrayList<Favor>(); 
     favors.add(new Favor(1,"Get 50 logs of wood.")); 
     favors.add(new Favor(2, "Find a hammer")); 
     blackboardTex = new Texture(Gdx.files.internal("Blackboard.png")); 
     fontGenerator = new FreeTypeFontGenerator(Gdx.files.internal("Coolville.ttf")); 
     fontParameter = new FreeTypeFontParameter(); 
     fontParameter.size = 9; 
     font = fontGenerator.generateFont(fontParameter); 
     mainBatch = new SpriteBatch(); 
     player = new Player(-50,0); 
     cam = new OrthographicCamera(16*10,9*10); 
     player.batcher.setProjectionMatrix(cam.combined); 
     choiceBanner = new Texture(Gdx.files.internal("ChoiceBanner.png")); 
     bartableSprite = new Sprite(new Texture(Gdx.files.internal("Bartable.png"))); 
     fireSprites = new Array<Sprite>(); 
     fireSprites.add(new Sprite(new Texture(Gdx.files.internal("Fire1.png")))); 
     fireSprites.add(new Sprite(new Texture(Gdx.files.internal("Fire2.png")))); 
     fireSprites.add(new Sprite(new Texture(Gdx.files.internal("Fire3.png")))); 
     fireSprites.add(new Sprite(new Texture(Gdx.files.internal("Fire4.png")))); 
     fireSprites.add(new Sprite(new Texture(Gdx.files.internal("Fire5.png")))); 
     fireSprites.add(new Sprite(new Texture(Gdx.files.internal("Fire6.png")))); 
     fireSprites.add(new Sprite(new Texture(Gdx.files.internal("Fire7.png")))); 
     mainBatch.setProjectionMatrix(cam.combined); 
     customer = new DwarfScythe(80, 0); 
     customer.batcher.setProjectionMatrix(cam.combined); 
    } 

    @Override 
    public void render(float delta) { 
     Gdx.app.log("blackboard favors: ", ""+favors.size()); 
     if(customer != null){ 
      if(customer.CURRENT_STATE == customer.TALKING){ 
       paymentChoice = true; 
      } 
      customer.delta = delta; 
      if(customer.hasPayed){ 
       paymentChoice = false; 
       customer = null; 
      } 
     } 
     Gdx.graphics.getGL20().glClear(GL20.GL_COLOR_BUFFER_BIT); 
     Gdx.graphics.getGL20().glClearColor(0.05f, 0.05f, 0.05f, 1); 
     player.render(); 
     player.logic(delta); 
     fireSpriteIndex += delta*5; 
     mainBatch.begin(); 
     // Background 
     mainBatch.draw(bartableSprite, -48, 0); 
     mainBatch.draw(fireSprites.get((int)fireSpriteIndex), 0, 0); 
     mainBatch.end(); 
     // People 
     if(customer != null){ 
      customer.render(); 
      customer.logic(); 
     } 
     // UI 
     mainBatch.begin(); 
     mainBatch.draw(blackboardTex, -blackboardTex.getWidth()/2, -blackboardTex.getHeight()/2); 
     Gdx.app.log("favor 1 name: ",favors.get(1).name); // Returns: favor 1 name: null 
     //font.draw(mainBatch, favors.get(1).name, -blackboardTex.getWidth()/2+5, blackboardTex.getHeight()/2-5); 
     font.draw(mainBatch, "Gold: " + shopMoney, -80, 44); 
     if(paymentChoice){ 
      mainBatch.draw(choiceBanner, -16,-16); 
      if(Gdx.input.isKeyJustPressed(Keys.G)){ 
       // Gold 
       if(customer.isCheap){ 
        shopMoney += customer.money/4; 
       } 
       else{ 
        shopMoney += customer.money; 
       } 
       customer.hasPayed = true; 
      } 
      if(Gdx.input.isKeyJustPressed(Keys.H)){ 
       // Help 
      } 
     } 
     mainBatch.end(); 
     if(fireSpriteIndex >= 6.5f){ 
      fireSpriteIndex = 0; 
     } 
    } 

    @Override 
    public void resize(int width, int height) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void pause() { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void resume() { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void hide() { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void dispose() { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void show() { 
     // TODO Auto-generated method stub 

    } 
} 

Answer 1

問題が修正されました。私はFavorクラスの開発中にエラーが発生したようです。申し訳ありませんが主観的になってしまいましたが、これらのクラスを追加するだけで、文字列のArrayListを追加するだけで、複雑すぎることに気付きました。それは私がやったことであり、問​​題は解決されました。