努力构建libgdx项目答案

【问题标题】：Struggling to structure libgdx project努力构建libgdx项目
【发布时间】：2020-05-31 09:09:09
【问题描述】：

我知道这个问题可能会被删除，但我还是要问它。

我一直在尝试使用 Libgdx 用 Java 制作草稿游戏；我也一直在使用 Stage2D。

我不知道如何构建项目，因为我计划为棋盘、游戏、玩家、棋子和 GUI 设置单独的类。另外，我编写了一些代码来绘制板，但是它似乎不适用于 Stage2D。

我仍然想自己解决这个问题，因为我想从这个项目中学习。所以，请不要付出太多。

但是，我不知道如何画板或开始这个项目。

我在网上找到的所有资源和教程都非常不清楚。我真的不知道该怎么办。

package com.mygdx.game;

public enum Color {
    BLACK, WHITE
}

package com.mygdx.game;

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.badlogic.gdx.scenes.scene2d.Stage;

public class GUI {
    float r_brown = (float) 163 / 255;
    float g_brown = (float) 102 / 255;
    float b_brown = (float) 46 / 255;

    float r_cream = (float) 240 / 255;
    float g_cream = (float) 187 / 255;
    float b_cream = (float) 108 / 255;

    private ShapeRenderer shapeRenderer;
    private OrthographicCamera camera;

    public GUI(ShapeRenderer shapeRenderer, OrthographicCamera camera) {
        this.shapeRenderer = shapeRenderer;
        this.camera = camera;
    }

    public void drawGUI() {
    }
}

package com.mygdx.game;

public enum Type {
    SOLDIER, KING
}

package com.mygdx.game;

public class Player {
    private Color color;

    public Player() {
    }
}

package com.mygdx.game;

public class King extends Piece {

    private Location location;
    private Type type = Type.KING;
    private Player player;

    public King(Player player, Location location) {
        super(player, location);
    }

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

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

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

package com.mygdx.game;

public class Location {
    private int x;
    private int y;

    public Location(int x, int y) {
        this.x = x;
        this.y = y;
    }
}

package com.mygdx.game;

import com.badlogic.gdx.scenes.scene2d.Actor;

public abstract class Piece extends Actor {
    private Location location;
    private Type type;
    private Player player;

    public Piece(Player player, Location location) {
        this.player = player;
        this.location = location;
    }

    public abstract void draw();

    public abstract void move();

    public abstract void capture();

    public void setLocation(Location location) {
        this.location = location;
    }

    public Location getLocation() {
        return this.location;
    }

    public void setType(Type type) {
        this.type = type;
    }

    public Type getType() {
        return this.type;
    }

    public void setPlayer(Player player) {
        this.player = player;
    }

    public Player getPlayer() {
        return this.player;
    }
}

package com.mygdx.game;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.Sprite;
import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.scenes.scene2d.InputListener;
import com.badlogic.gdx.scenes.scene2d.Touchable;
import com.badlogic.gdx.scenes.scene2d.actions.MoveByAction;
import com.badlogic.gdx.scenes.scene2d.InputEvent;

public class Soldier extends Actor {
    private Location location;
    private Type type = Type.SOLDIER;
    private Player player;
    Sprite sprite = new Sprite(new Texture(Gdx.files.internal("black_solider.png")));

    public Soldier(Player player, Location location) {
        //super(player, location);
        setBounds(sprite.getX(), sprite.getY(), sprite.getWidth(), sprite.getHeight());
        setTouchable(Touchable.enabled);

        addListener(new InputListener() {
            @Override
            public boolean keyDown(InputEvent event, int keycode) {
                if (keycode == Input.Keys.RIGHT) {
                    MoveByAction mba = new MoveByAction();
                    mba.setAmount(100f, 0f);
                    mba.setDuration(5f);

                    Soldier.this.addAction(mba);
                }
                return true;
            }
        });
    }

    @Override
    public void draw(Batch batch, float parentAlpha) {
        sprite.draw(batch, parentAlpha);
    }

    @Override
    public void act(float delta) {
        super.act(delta);
    }

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

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

    public void setLocation(Location location) {
        this.location = location;
    }

    public Location getLocation() {
        return this.location;
    }

    public void setType(Type type) {
        this.type = type;
    }

    public Type getType() {
        return this.type;
    }

    public void setPlayer(Player player) {
        this.player = player;
    }

    public Player getPlayer() {
        return this.player;
    }
}

package com.mygdx.game;

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.utils.viewport.ScreenViewport;

public class MyGdxGame extends ApplicationAdapter {
    Stage stage;
    private GUI gui;
    private ShapeRenderer shapeRenderer;
    private OrthographicCamera camera;

    float r_brown = (float) 163 / 255;
    float g_brown = (float) 102 / 255;
    float b_brown = (float) 46 / 255;

    float r_cream = (float) 240 / 255;
    float g_cream = (float) 187 / 255;
    float b_cream = (float) 108 / 255;

    @Override
    public void create() {
        ScreenViewport viewport = new ScreenViewport();
        stage = new Stage(viewport);
        Gdx.input.setInputProcessor(stage);

        shapeRenderer = new ShapeRenderer();
        camera = new OrthographicCamera();
        gui = new GUI(shapeRenderer, camera);

        Soldier piece1 = new Soldier(new Player(), new Location(400, 400));
        stage.addActor(piece1);
    }

    @Override
    public void render() {
        Gdx.gl.glClearColor(1, 1, 1, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

        shapeRenderer.setProjectionMatrix(camera.combined);
        shapeRenderer.begin(ShapeRenderer.ShapeType.Filled);

        for (int i = 0; i < 8; i++) {
            for (int j = 0; j < 8; j++) {
                if ((i % 2) == 0) {
                    if ((j % 2) == 0) {
                        shapeRenderer.setColor(r_brown, g_brown, b_brown, 1);
                        shapeRenderer.rect(100 * i, 100 * j, 100, 100);
                    } else {
                        shapeRenderer.setColor(r_cream, g_cream, b_cream, 1);
                        shapeRenderer.rect(100 * i, 100 * j, 100, 100);
                    }
                } else {
                    if ((j % 2) == 0) {

                        shapeRenderer.setColor(r_cream, g_cream, b_cream, 1);
                        shapeRenderer.rect(100 * i, 100 * j, 100, 100);
                    } else {
                        shapeRenderer.setColor(r_brown, g_brown, b_brown, 1);
                        shapeRenderer.rect(100 * i, 100 * j, 100, 100);
                    }
                }
            }
        }

        shapeRenderer.end();
        camera.update();

        stage.act(Gdx.graphics.getDeltaTime());
        stage.draw();

        /*
        Piece[][] pieces = new Piece[8][8];
        for (int i = 0; i < 8; i++)
        {
            for (int j = 0; j < 8; j++)
            {
                Piece currentPiece = pieces[i][j];
                currentPiece.draw();
            }
        }
        */
    }
    @Override
    public void dispose() {
        shapeRenderer.dispose();
    }
}

【问题讨论】：

您还可以启动并运行最基本的教程，并让它在屏幕上绘制一些东西。然后对其进行微小的更改，如果出现问题，您可以随时恢复。您可能还会发现学习和使用 'git' 很有帮助 - 如果您学习和使用 git，您可以更轻松地恢复到之前工作的代码版本，特别是如果您只在代码工作时提交。

标签： java libgdx

【解决方案1】：

一些快速而肤浅的提示：

您似乎面临着多重挑战和问题。如果可以的话，一次一个地专注于它们，一个一个地划分和征服它们。

如果您这样做是为了学习，并且您对编程非常陌生，请注意不要让项目的范围很大。为您希望能够对项目做的事情设定一个非常适度的目标，一旦完成，您就可以添加一个额外的目标。迭代地继续。这是非常具有风险弹性的，因为您从一个相对容易的点开始，然后从那里开始。这样做的缺点是您可能需要做大量的工作，因为早期的设计适合后来的工作可能不适合以后的工作，这可能需要在更小或更大的程度上进行重写和重新设计。一旦您变得更有经验，尽早计划和寻求设计会非常非常有帮助，特别是如果您知道某些重要方面稍后会很重要并且您早期选择的设计会影响这些 - 但同样，这是一旦你更有经验。

考虑您希望游戏具备哪些功能，例如 AI（状态空间搜索）、图形、保存/加载、使用 GUI 移动的玩家等。然后选择一些东西你认为既容易又最好的。如果你是新人，不要要求它是一个有凝聚力的整体，一旦你有更多的经验、学到了更多的知识、对事情有更多的思考等等，你总是可以把它作为一个更雄心勃勃的目标。再一次，要非常，对你的目标和范围非常谦虚，并获得一些经验并学习。

【讨论】：