Riassunti

Nella cartella src si trovano tutti i package di seguito, anche le immagini dell'omino che si muove.

PACKAGE: application

Per quanto riguarda il file Main.java:

package application;

import javax.swing.JFrame;

import application.controller.MovementController;
import application.view.GraphicPanel;

public class Main {
    public static void main(String[] args) {
        JFrame f = new JFrame();
        f.setSize(800, 800);
        GraphicPanel gp = new GraphicPanel();
        MovementController controller = new MovementController(gp);
        gp.addKeyListener(controller);
        gp.setFocusable(true);
        f.add(gp);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
        GameLoop gameLoop = new GameLoop(controller);
        Thread t = new Thread(gameLoop);
        t.start();
    }
}

Per quanto riguarda il file GameLoop.java:

package application;

import application.controller.MovementController;

public class GameLoop implements Runnable {
    private MovementController controller;
    private int frequency = 60;

    public GameLoop(MovementController controller) {
        this.controller = controller;
    }

    @Override
    public void run() {
        while(true) {
            controller.update();
            try {
                Thread.sleep(frequency);
            } catch (InterruptedException e) {
                return;
            }
        }
    }
}

PACKAGE: application.controller

Per quanto riguarda il file MovementController.java:

package application.controller;

import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

import application.model.Game;
import application.view.GraphicPanel;

public class MovementController implements KeyListener {
    private GraphicPanel gp;

    public MovementController(GraphicPanel gp) { this.gp = gp; }

    public void update() { gp.update(); }

    @Override
    public void keyPressed(KeyEvent e) {
        if(e.getKeyCode() == KeyEvent.VK_RIGHT) {
            Game game = Game.getInstance();
            game.move();
            gp.move();
        }
    }

    @Override
    public void keyReleased(KeyEvent e) {
        if(e.getKeyCode() == KeyEvent.VK_RIGHT) {
            gp.stop();
        }
    }

    @Override
    public void keyTyped(KeyEvent e) {}
}

PACKAGE: application.model

Per quanto riguarda il file Game.java:

package application.model;

public class Game {
    private MyCharacter character;

    private static Game game = null;

    private Game() {
        character = new MyCharacter();
        character.x = 0;
        character.y = 0;
        character.speed = 10;
    }

    public static Game getInstance() {
        if(game == null)
            game = new Game();
        return game;
    }

    public MyCharacter getCharacter() { return character; }

    public void move() { character.x += character.speed; }
}

Per quanto riguarda il file MyCharacter.java:

package application.model;

public class MyCharacter {
    int x;
    int y;
    int speed;

    public int getX() { return x; }

    public int getY() { return y; }
}

PACKAGE: application.view

Per quanto riguarda il file CharacterView.java:

package application.view;

import java.awt.Image;
import java.io.IOException;
import java.util.ArrayList;
import javax.imageio.ImageIO;

public class CharacterView {
    private ArrayList<Image> images;
    Image currentImage;
    int dim;
    private int index;
    private boolean move;

    CharacterView() {
        images = new ArrayList<Image>();
        dim = 147;
        move = false;
        index = 0;
        try {
            for(int i = 0; i < 10; i++) {
                Image img = ImageIO.read(getClass().getResourceAsStream
                    ("/application/resources/"+i+".png"));
                images.add(img);
            }
            currentImage = images.get(0);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void move() { move = true; }

    public void stop() { move = false; }

    public void update() {
        if(move) {
            index++;
            if(index == images.size()) index = 0;
        }
        else { index = 0; }
        currentImage = images.get(index);
    }
}

Per quanto riguarda il file GraphicPanel.java:

package application.view;

import java.awt.Graphics;
import javax.swing.JPanel;
import application.model.Game;

public class GraphicPanel extends JPanel {
    private static final long serialVersionUID = 2420221890130352491L;

    private CharacterView cv = new CharacterView();

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        int x = Game.getInstance().getCharacter().getX();
        int y = Game.getInstance().getCharacter().getY();
        g.drawImage(cv.currentImage, x, y, cv.dim, cv.dim, null);
    }

    public void move() { cv.move(); }

    public void stop() { cv.stop(); }

    public void update() {
        cv.update();
        repaint();
    }
}