Как добавить экран меню Screen и счетчик прогресса в игру для андроид с LibGDX — мультиплатформенным фреймворком для создания игр, мы покажем в этом уроке на примере усовершенствования простой игры.
Полный код игры под видео:
Drop.java
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package info.fandroid.drop; import com.badlogic.gdx.Game; import com.badlogic.gdx.graphics.g2d.BitmapFont; import com.badlogic.gdx.graphics.g2d.SpriteBatch; /** * Created by Vitaly on 13.10.2015. */ public class Drop extends Game { SpriteBatch batch; BitmapFont font; @Override public void create() { batch = new SpriteBatch(); font = new BitmapFont(); this.setScreen(new MainMenuScreen(this)); } @Override public void render() { super.render(); } @Override public void dispose() { super.dispose(); batch.dispose(); font.dispose(); } } |
GameScreen.java
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package info.fandroid.drop; import com.badlogic.gdx.Gdx; import com.badlogic.gdx.Input; import com.badlogic.gdx.Screen; import com.badlogic.gdx.audio.Music; import com.badlogic.gdx.audio.Sound; import com.badlogic.gdx.graphics.GL20; import com.badlogic.gdx.graphics.OrthographicCamera; import com.badlogic.gdx.graphics.Texture; import com.badlogic.gdx.math.MathUtils; import com.badlogic.gdx.math.Rectangle; import com.badlogic.gdx.math.Vector3; import com.badlogic.gdx.utils.Array; import com.badlogic.gdx.utils.TimeUtils; import java.util.Iterator; public class GameScreen implements Screen { final Drop game; OrthographicCamera camera; Texture dropImage; Texture bucketImage; Sound dropSound; Music rainMusic; Rectangle bucket; Vector3 touchPos; Array<Rectangle> raindrops; long lastDropTime; int dropsGatchered; String dropString; public GameScreen (final Drop gam) { this.game = gam; camera = new OrthographicCamera(); camera.setToOrtho(false, 800, 480); touchPos = new Vector3(); dropImage = new Texture("droplet.png"); bucketImage = new Texture("bucket.png"); dropSound = Gdx.audio.newSound(Gdx.files.internal("waterdrop.wav")); rainMusic = Gdx.audio.newMusic(Gdx.files.internal("undertreeinrain.mp3")); rainMusic.setLooping(true); rainMusic.play(); bucket = new Rectangle(); bucket.x = 800 / 2 - 64 / 2; bucket.y = 20; bucket.width = 64; bucket.height = 64; raindrops = new Array<Rectangle>(); spawnRaindrop(); } private void spawnRaindrop(){ Rectangle raindrop = new Rectangle(); raindrop.x = MathUtils.random(0, 800-64); raindrop.y = 480; raindrop.width = 64; raindrop.height = 64; raindrops.add(raindrop); lastDropTime = TimeUtils.nanoTime(); } @Override public void render (float delta) { Gdx.gl.glClearColor(0, 0, 0.2f, 1); Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT); camera.update(); game.batch.setProjectionMatrix(camera.combined); game.batch.begin(); game.font.draw(game.batch, "Drops Collected: " + dropsGatchered, 0, 480); game.batch.draw(bucketImage, bucket.x, bucket.y); for (Rectangle raindrop: raindrops){ game.batch.draw(dropImage, raindrop.x, raindrop.y); } game.batch.end(); if(Gdx.input.isTouched()){ touchPos.set(Gdx.input.getX(), Gdx.input.getY(), 0); camera.unproject(touchPos); bucket.x = (int) (touchPos.x -64 / 2); } if(Gdx.input.isKeyPressed(Input.Keys.LEFT)) bucket.x -= 200 * Gdx.graphics.getDeltaTime(); if(Gdx.input.isKeyPressed(Input.Keys.RIGHT)) bucket.x += 200 * Gdx.graphics.getDeltaTime(); if (bucket.x < 0) bucket.x = 0; if (bucket.x > 800 - 64) bucket.x = 800 - 64; if (TimeUtils.nanoTime() - lastDropTime > 1000000000) spawnRaindrop(); Iterator<Rectangle> iter = raindrops.iterator(); while (iter.hasNext()){ Rectangle raindrop = iter.next(); raindrop.y -= 200 * Gdx.graphics.getDeltaTime(); if (raindrop.y + 64 < 0) iter.remove(); if (raindrop.overlaps(bucket)){ dropsGatchered++; dropSound.play(); iter.remove(); } } } @Override public void resize(int width, int height) { } @Override public void pause() { } @Override public void resume() { } @Override public void hide() { } @Override public void dispose() { dropImage.dispose(); bucketImage.dispose(); dropSound.dispose(); rainMusic.dispose(); } @Override public void show() { rainMusic.play(); } } |
MainMenuScreen.java
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package info.fandroid.drop; import com.badlogic.gdx.Gdx; import com.badlogic.gdx.Screen; import com.badlogic.gdx.graphics.GL20; import com.badlogic.gdx.graphics.OrthographicCamera; /** * Created by Vitaly on 13.10.2015. */ public class MainMenuScreen implements Screen { final Drop game; OrthographicCamera camera; public MainMenuScreen(final Drop gam) { game = gam; camera = new OrthographicCamera(); camera.setToOrtho(false, 800, 480); } @Override public void show() { } @Override public void render(float delta) { Gdx.gl.glClearColor(0, 0, 0.2f, 1); Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT); camera.update(); game.batch.setProjectionMatrix(camera.combined); game.batch.begin(); game.font.draw(game.batch, "Welcome to Drop!", 100, 150); game.font.draw(game.batch, "Tap anywhere to begin!", 100, 100); game.batch.end(); if (Gdx.input.isTouched()){ game.setScreen(new GameScreen(game)); dispose(); } } @Override public void resize(int width, int height) { } @Override public void pause() { } @Override public void resume() { } @Override public void hide() { } @Override public void dispose() { } } |
Больше уроков:
Уроки Android Studio: тут
Инструменты android разработчика: тут
Дизайн android приложений: тут
Уроки создания игр для android: тут
Основы программирования на JAVA: тут
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LibGDX: Урок 5. Пишем игру Flappy Bird для андроид | Делаем android игры>>
