package simpleGame;

public class TestGame {

    public static void main(String[] args) {
        Player p=new Player(1,1);
        MapPanel mp=new MapPanel(p);
        GameFrame frame=new GameFrame(mp, p);
    }

}


package simpleGame;

import javax.swing.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

public class GameFrame extends JFrame implements KeyListener {
    private MapPanel panel;
    private Player player;

    public GameFrame(MapPanel p, Player pl){
        panel=p;
        player=pl;
        add(panel);

        this.pack();
        this.setDefaultCloseOperation(EXIT_ON_CLOSE);
        this.setVisible(true);

        this.addKeyListener(this);
    }

    @Override
    public void keyTyped(KeyEvent keyEvent) {

    }

    @Override
    public void keyPressed(KeyEvent keyEvent) {
        int key=keyEvent.getKeyCode();
        System.out.println(key);

        switch(key){
            case KeyEvent.VK_UP:
                System.out.println("UP");
                player.move(-1, 0);
                panel.repaint();
                break;
            case KeyEvent.VK_DOWN:
                System.out.println("DOWN");
                player.move(1, 0);
                panel.repaint();
                break;
            case KeyEvent.VK_LEFT:
                System.out.println("LEFT");
                player.move(0, -1);
                panel.repaint();
                break;
            case KeyEvent.VK_RIGHT:
                System.out.println("RIGHT");
                player.move(0, 1);
                panel.repaint();
                break;
        }

    }

    @Override
    public void keyReleased(KeyEvent keyEvent) {

    }
}


package simpleGame;

import javax.swing.*;
import java.awt.*;

public class MapPanel extends JPanel {
    private Player p;
    private int PANEL_WIDTH=800, PANEL_HEIGHT=800;


    public MapPanel(Player play){
        p=play;
        setPreferredSize(new Dimension(PANEL_WIDTH, PANEL_HEIGHT));
    }

    public void paintComponent(Graphics g){
        super.paintComponent(g);
        g.fillRect(p.getLocCol(), p.getLocRow(), p.getCELL_SIZE(),p.getCELL_SIZE());
    }

}

package simpleGame;

public class Player {
    private int locRow, locCol;
    private final int CELL_SIZE=20;

    public Player(int row, int col){
        locRow=row*CELL_SIZE;
        locCol=col*CELL_SIZE;
    }

    public boolean move(int rowShift, int colShift){
        boolean moved=true;

        locRow=locRow+(rowShift*CELL_SIZE);
        locCol=locCol+(colShift*CELL_SIZE);

        return moved;
    }

    public int getCELL_SIZE() {
        return CELL_SIZE;
    }

    public int getLocRow() {
        return locRow;
    }

    public void setLocRow(int locRow) {
        this.locRow = locRow;
    }

    public int getLocCol() {
        return locCol;
    }

    public void setLocCol(int locCol) {
        this.locCol = locCol;
    }
}