Android Studio и LibGDX: Создаем простую 2D игру (Машинки)

Здравствуйте, продолжаем создавать игры на LibGDX – сегодня создадим простую игру про машинки: за основу возьмем игру, которую мы создавали раньше, вот в этих статьях:

Скачать исходники для статьи можно ниже

Android Studio и LibGDX: Создаем простую 2D игру (Часть 3: Анимация актера)
Android Studio и LibGDX: Создаем простую 2D игру (Часть 2)
Android Studio и LibGDX: Создаем простую 2D игру (Часть 1)

Выглядеть игра будет следующим образом:

Суть игры простая кликаем по экрану появляется новая машинка, которая едет слева направо.

Файлы игры:

Код файла ActorJugador:

package com.mygdx.game.actors;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input;
import com.badlogic.gdx.graphics.g2d.Animation;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.scenes.scene2d.Actor;



public class ActorJugador extends Actor {

    private TextureAtlas textureAtlas;
    private Animation animation;
    private float stateTime;


    private boolean alive;

    public boolean isAlive() {
        return alive;
    }

    public void setAlive(boolean alive) {
        this.alive = alive;
    }

    public ActorJugador(TextureAtlas jugator){

        this.alive=true;
        setSize(279,225 );

        textureAtlas=new TextureAtlas(Gdx.files.internal("buldatlas.atlas"));
        animation=new Animation(1/7f,textureAtlas.getRegions());

    }


    public void act (float delta){
        super.act(delta);

        setX(getX()+15*delta);

    }

    public void draw (Batch batch, float parentAlpha){
        super.draw(batch, parentAlpha);
        stateTime += Gdx.graphics.getDeltaTime();
        batch.draw((TextureRegion) animation.getKeyFrame(stateTime, true), getX(), 10);

    }
}

Код файла ActorMashina2:

package com.mygdx.game.actors;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.g2d.Animation;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.scenes.scene2d.Actor;

public class ActorMashina2 extends Actor {

    private TextureAtlas textureAtlas;
    private Animation animation;
    private float stateTime;


    private boolean alive;

    public boolean isAlive() {
        return alive;
    }

    public void setAlive(boolean alive) {
        this.alive = alive;
    }

    public ActorMashina2(TextureAtlas jugator){

        this.alive=true;
        setSize(279,225 );

        textureAtlas=new TextureAtlas(Gdx.files.internal("mashatlas.atlas"));
        animation=new Animation(1/7f,textureAtlas.getRegions());

    }


    public void act (float delta){
        super.act(delta);

        setX(getX()+15*delta);

    }

    public void draw (Batch batch, float parentAlpha){
        super.draw(batch, parentAlpha);
        stateTime += Gdx.graphics.getDeltaTime();
        batch.draw((TextureRegion) animation.getKeyFrame(stateTime, true), getX(), 10);

    }
}

Код файла ActorPinchos:

package com.mygdx.game.actors;

import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.scenes.scene2d.Actor;


public class ActorPinchos extends Actor {
    private TextureRegion pinchos;

    public ActorPinchos (TextureRegion pinchos) {
        this.pinchos=pinchos;
        setSize(pinchos.getRegionWidth(), pinchos.getRegionHeight());
    }

    public void act (float delta){
        setX(getX()-50*delta);
    }

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

Код файла BaseScreen:

package com.mygdx.game;

import com.badlogic.gdx.Screen;


public abstract class BaseScreen implements Screen {

    public MainGame game;

    public BaseScreen(MainGame game) {
        this.game=game;

    }
    @Override
    public void show() {

    }

    @Override
    public void render(float delta) {

    }

    @Override
    public void resize(int width, int height) {

    }

    @Override
    public void pause() {

    }

    @Override
    public void resume() {

    }

    @Override
    public void hide() {

    }

    @Override
    public void dispose() {

    }
}

Код файла GameOverScreen:

package com.mygdx.game;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.Image;
import com.badlogic.gdx.scenes.scene2d.ui.Skin;
import com.badlogic.gdx.scenes.scene2d.ui.TextButton;
import com.badlogic.gdx.scenes.scene2d.utils.ChangeListener;
import com.badlogic.gdx.utils.viewport.FillViewport;


public class GameOverScreen extends BaseScreen {

    private Stage stage;
    private Skin skin;
    private Image gameover;
    private TextButton retry, menu;

    public GameOverScreen(final MainGame game) {
        super(game);

        stage=new Stage(new FillViewport(640, 360));
        skin=new Skin(Gdx.files.internal("skin/uiskin.json"));
        gameover = new Image(new Texture(Gdx.files.internal("gameover.png")));
        retry=new TextButton("Retry",skin);
        menu=new TextButton("Menu", skin);

        retry.addCaptureListener(new ChangeListener() {
            @Override
            public void changed(ChangeEvent event, Actor actor) {
                game.setScreen(game.gameScreen);

            }
        });

        menu.addCaptureListener(new ChangeListener() {
            @Override
            public void changed(ChangeEvent event, Actor actor) {
                game.setScreen(game.menuScreen);

            }
        });

        gameover.setPosition(520-gameover.getWidth(), 320- gameover.getHeight());
        retry.setSize(200,100);
        retry.setPosition(350,50);
        stage.addActor(retry);
        menu.setSize(200,100);
        menu.setPosition(100,50);
        stage.addActor(menu);
        stage.addActor(gameover);

    }

    @Override
    public void show() {
        Gdx.input.setInputProcessor(stage);
    }

    @Override
    public void hide() {
        Gdx.input.setInputProcessor(null);
    }



    @Override
    public void dispose() {
        super.dispose();
    }

    @Override
    public void render(float delta) {
        Gdx.gl.glClearColor(0.4f, 0.5f, 0.8f, 1f);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
        stage.act();
        stage.draw();

    }
}

Код файла MainGame:

package com.mygdx.game;

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.Game;

public class MainGame extends Game {

	public MainGameScreen gameScreen;
	public GameOverScreen gameOverScreen;
	public MenuScreen menuScreen;

	@Override
	public void create () {
		menuScreen=new MenuScreen(this);
		gameScreen=new MainGameScreen(this);
		gameOverScreen=new GameOverScreen(this);
		setScreen(menuScreen);
	}

}

Код файла MainGameScreen:

package com.mygdx.game;
import com.badlogic.gdx.Game;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.graphics.g2d.TextureRegion;

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

import com.mygdx.game.actors.ActorJugador;
import com.mygdx.game.actors.ActorMashina2;
import com.mygdx.game.actors.ActorPinchos;



public class MainGameScreen extends BaseScreen {
    public MainGameScreen (MainGame game) {
        super(game);

        texturePinchos=new Texture("pinchos.png");
        regionPinchos=new TextureRegion(texturePinchos, 0, 64, 128, 64);





    }
    public static Texture backgroundTexture1;
    private Stage stage;
    private ActorJugador jugador;
    private ActorPinchos pinchos;
    private ActorMashina2 mashina2;

    private Texture texturePinchos;
    private TextureRegion regionPinchos;

    private TextureAtlas textureAtlas;
    float tim = 0;


    @Override
    public void show() {
        backgroundTexture1 = new Texture("bg.png");
        stage = new Stage();
        jugador = new ActorJugador(textureAtlas);
        mashina2 = new ActorMashina2(textureAtlas);
        pinchos=new ActorPinchos(regionPinchos);

        stage.addActor(jugador);
        stage.addActor(mashina2);
        stage.addActor(pinchos);


        jugador.setPosition(20,100);
        mashina2.setPosition(850,100);
        pinchos.setPosition(500,100);



    }

    @Override
    public void hide() {

        stage.dispose();

    }

    @Override
    public void render(float delta) {
        Gdx.gl.glClearColor(0.4f, 0.5f, 0.8f, 1f);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
        stage.act();
        stage.getBatch().begin();
        stage.getBatch().draw(backgroundTexture1, 0, 0, 800, 480);
        stage.getBatch().end();
        comprobarColisiones();
        stage.draw();


    }

    private void comprobarColisiones(){



        if (Gdx.input.isKeyPressed(Input.Keys.ANY_KEY) || Gdx.input.justTouched()) {
            jugador.remove();


            tim += 1;
            if (tim == 1) {
                mashina2.setPosition(50,100);
            }
            //game.setScreen(game.gameOverScreen);
            if (tim == 2) {
              mashina2.remove();
            }
            if (tim == 3) {
                game.setScreen(game.gameOverScreen);
                tim=0;
            }
        }




        if (jugador.isAlive()&&jugador.getX()>pinchos.getX()){
       // if (jugador.isAlive()&&jugador.getX()+jugador.getWidth()>pinchos.getX()){

            //System.out.println("Colision");
            pinchos.setPosition(800,100);
            //jugador.setAlive(false);
            //game.setScreen(game.gameOverScreen);


        }
    }

    @Override
    public void dispose() {
        texturePinchos.dispose();
        textureAtlas.dispose();
    }
}

Код файла MenuScreen:

package com.mygdx.game;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.Image;
import com.badlogic.gdx.scenes.scene2d.ui.Skin;
import com.badlogic.gdx.scenes.scene2d.ui.TextButton;
import com.badlogic.gdx.scenes.scene2d.ui.Button;
import com.badlogic.gdx.scenes.scene2d.utils.ChangeListener;
import com.badlogic.gdx.utils.viewport.FillViewport;


public class MenuScreen extends BaseScreen {
    private Stage stage;
    private Skin skin;
    private Image gameover;
    //private TextButton retry;
    private Button retry;

    public MenuScreen(final MainGame game) {
        super(game);
        stage=new Stage(new FillViewport(640, 360));
        skin=new Skin(Gdx.files.internal("skin/uiskin.json"));
        gameover = new Image();
        //retry=new TextButton("Play",skin);
        retry=new Button(skin);
        retry.addCaptureListener(new ChangeListener() {
            @Override
            public void changed(ChangeEvent event, Actor actor) {
                game.setScreen(game.gameScreen);

            }
        });

        gameover.setPosition(320-gameover.getWidth(), 320- gameover.getHeight());
        retry.setSize(200,100);
        retry.setPosition(220,50);
        stage.addActor(retry);
        stage.addActor(gameover);

    }

    @Override
    public void show() {
        Gdx.input.setInputProcessor(stage);
    }

    @Override
    public void hide() {
        Gdx.input.setInputProcessor(null);
    }



    @Override
    public void dispose() {
        super.dispose();
    }

    @Override
    public void render(float delta) {
        Gdx.gl.glClearColor(0.3f, 0.4f, 0.7f, 1f);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
        stage.act();
        stage.draw();

    }
}

Медиафайлы для игры:

Папку с медиафайлами можно загрузить – здесь.

PS:
Папку с игрой можно скачать – здесь.
APK файл игры можно скачать – здесь.

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