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


public class player extends JPanel implements KeyListener, ActionListener {
	private Image sprite;
	private int x = 400;
	private int y = 512;
	private int spd = 1;

	//Movement bools
	private boolean leftPressed = false;
	private boolean rightPressed = false;
	private boolean upPressed = false;
	private boolean downPressed = false;
	private boolean shootPressed = false;
	
	//Game loop timer
	private Timer timer;

	public player() {
		ImageIcon icon = new ImageIcon("spr/tank1.png");
		sprite = icon.getImage();
		setFocusable(true);
		addKeyListener(this);
		setPreferredSize(new Dimension(800, 600));
		//Timer to set target framerate to 60 (~16ms/frame)
		timer = new Timer(1000 / 60, this);
		timer.start();
	}
	private void updatePlayerPos() {
		if (leftPressed) x -= spd;
		if (rightPressed) x += spd;
		if (upPressed) y -= spd;
		if (downPressed) y += spd;
	}
	
	@Override
	protected void paintComponent(Graphics g) {
		super.paintComponent(g);
		g.drawImage(sprite, x, y, this);
	}
	
	@Override
	public void keyPressed(KeyEvent e) {
		int key = e.getKeyCode();
		switch (key) {
			case KeyEvent.VK_LEFT:
			case KeyEvent.VK_A:
				leftPressed = true;
				break;
			case KeyEvent.VK_RIGHT:
			case KeyEvent.VK_D:
				rightPressed = true;
				break;
			case KeyEvent.VK_UP:
			case KeyEvent.VK_W:
				upPressed = true;
				break;
			case KeyEvent.VK_DOWN:
			case KeyEvent.VK_S:
				downPressed = true;
				break;
			case KeyEvent.VK_SPACE:
				shootPressed = true;
				break;
		}
	}
	@Override
	public void keyReleased(KeyEvent e) {
		int key = e.getKeyCode();
		switch (key) {
			case KeyEvent.VK_LEFT:
			case KeyEvent.VK_A:
				leftPressed = false;
				break;
			case KeyEvent.VK_RIGHT:
			case KeyEvent.VK_D:
				rightPressed = false;
				break;
			case KeyEvent.VK_UP:
			case KeyEvent.VK_W:
				upPressed = false;
				break;
			case KeyEvent.VK_DOWN:
			case KeyEvent.VK_S:
				downPressed = false;
				break;
			case KeyEvent.VK_SPACE:
				shootPressed = false;
				break;
		}
	}
	
	@Override
	public void keyTyped(KeyEvent e) {
		//UNUSED
	}
	
	public void actionPerformed(ActionEvent e) {
		updatePlayerPos();
		repaint();
	}
}