LibGDX – Akcje aktora i refactor

Odcinek, w którym zrobiliśmy mały refactor inita w screenach i dodaliśmy akcje aktora.

Kod źródłowy odcinka: https://github.com/JavaDevMatt/tutorialclicker/tree/tut4

Klasa Player

package pl.javadevmatt.tutorialclicker.entities;

import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.math.Interpolation;
import com.badlogic.gdx.math.MathUtils;
import com.badlogic.gdx.scenes.scene2d.Action;
import com.badlogic.gdx.scenes.scene2d.actions.Actions;
import com.badlogic.gdx.scenes.scene2d.ui.Image;

public class Player extends Image{

	private final static int WIDHT = 77;
	private final static int HEIGHT = 152;
	
	private final static int STARTING_X = 200;
	private final static int STARTING_Y = 300;
	
	public Player(){
		super(new Texture("badlogic.jpg"));
		
		this.setOrigin(WIDHT / 2, HEIGHT / 2);
		this.setSize(WIDHT, HEIGHT);
		
		// starting position
		this.setPosition(STARTING_X, STARTING_Y);
	}

	public void reactOnClick() {
		int xMoveAmmount = MathUtils.random(-130, 130);
		int yMoveAmmount = 10;
		float moveActionTime = 0.30f;
		Action moveAction = Actions.sequence(
				Actions.moveBy(xMoveAmmount, yMoveAmmount, moveActionTime, Interpolation.circleOut),
				Actions.moveBy(-xMoveAmmount, -yMoveAmmount, moveActionTime, Interpolation.circle)
				);
				
		int xGrowAmmount = MathUtils.random(-30, 100);
		int yGrowAmmount = 20;
		float growActionTime = 0.2f;
		Action growAction =  Actions.sequence(
				Actions.sizeBy(xGrowAmmount, yGrowAmmount, growActionTime, Interpolation.circleOut),
				Actions.sizeBy(-xGrowAmmount, -yGrowAmmount, growActionTime, Interpolation.circle)
				);
		
		this.addAction(moveAction);
		this.addAction(growAction);
		
		if(this.getHeight() > 170){
			this.addAction(Actions.rotateBy(MathUtils.randomSign() * 360, 0.4f));
		}
	}
	
}

Klasa GameplayScreen

package pl.javadevmatt.tutorialclicker.screens;

import pl.javadevmatt.tutorialclicker.TutorialClickerGame;
import pl.javadevmatt.tutorialclicker.entities.Player;

import com.badlogic.gdx.scenes.scene2d.InputEvent;
import com.badlogic.gdx.scenes.scene2d.ui.Button;
import com.badlogic.gdx.scenes.scene2d.ui.Button.ButtonStyle;
import com.badlogic.gdx.scenes.scene2d.utils.ClickListener;

public class GameplayScreen extends AbstractScreen{
	
	private Player player;
	private Button playerButton;

	public GameplayScreen(TutorialClickerGame game) {
		super(game);
	}
	
	@Override
	protected void init() {
		initPlayer();
		initPlayerButton();
	}
	
	private void initPlayerButton() {
		playerButton = new Button(new ButtonStyle());
		playerButton.setWidth(460);
		playerButton.setHeight(360);
		playerButton.setX(10);
		playerButton.setY(170);
		playerButton.setDebug(true);
		
		stage.addActor(playerButton);
		
		playerButton.addListener(new ClickListener(){
			
			@Override
			public boolean touchDown(InputEvent event, float x, float y,
					int pointer, int button) {
				
				player.reactOnClick();
				
				return super.touchDown(event, x, y, pointer, button);
			}
			
		});
	}

	private void initPlayer() {
		player = new Player();
		stage.addActor(player);
	}
	
	@Override
	public void render(float delta) {
		super.render(delta);
		update();
		
		spriteBatch.begin();
		stage.draw();
		spriteBatch.end();
	}

	private void update() {
		stage.act();
	}


	

}

Klasa AbstractScreen

package pl.javadevmatt.tutorialclicker.screens;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Screen;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.utils.viewport.StretchViewport;

import pl.javadevmatt.tutorialclicker.TutorialClickerGame;

public abstract class AbstractScreen implements Screen{
	
	protected TutorialClickerGame game;
	
	protected Stage stage;
	private OrthographicCamera camera;
	protected SpriteBatch spriteBatch;
	
	public AbstractScreen(TutorialClickerGame game){
		this.game = game;
		createCamera();
		stage = new Stage(new StretchViewport(TutorialClickerGame.WIDTH, TutorialClickerGame.HEIGHT, camera));
		spriteBatch = new SpriteBatch();
		Gdx.input.setInputProcessor(stage);
		init();
	}

	protected abstract void init();

	private void createCamera() {
		camera = new OrthographicCamera();
		camera.setToOrtho(false, TutorialClickerGame.WIDTH, TutorialClickerGame.HEIGHT);
		camera.update();
	}
	
	@Override
	public void render(float delta) {
		clearScreen();
		camera.update();
		spriteBatch.setProjectionMatrix(camera.combined);
	}
	
	@Override
	public void show() {}

	private void clearScreen() {
		Gdx.gl.glClearColor(0, 0, 0, 0);
		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
	}
	
	@Override
	public void resume() {
		game.setPaused(false);
	}
	
	@Override
	public void pause() {
		game.setPaused(true);
	}
	
	@Override
	public void hide() {}
	
	@Override
	public void dispose() {
		game.dispose();
	}
	
	@Override
	public void resize(int width, int height) {
	}

}