import java.awt.*;
import java.awt.Color;
import java.awt.event.*;
import java.util.ArrayList;
import javax.swing.*;
import javax.swing.border.*;

public class Chess extends JPanel implements ActionListener {

  // pieces stuff
  ArrayList<Piece> white;
  ArrayList<Piece> black;

  // game vars
  int boardWidth, boardHeight;
  boolean whiteTurn;
  Timer gameTimer;
  Color creme = new Color(254, 245, 218);
  Color brown = new Color(121, 92, 50);

  public Chess(int boardWidth, int boardHeight) {
    this.boardWidth = boardWidth;
    this.boardHeight = boardHeight;
    setPreferredSize(new Dimension(this.boardWidth, this.boardHeight));
    setBackground(Color.WHITE);
    setFocusable(true);

    white = new ArrayList<>();
    black = new ArrayList<>();

    for (int i = 0; i <= 7; i++) {
      white.add(new Pawn(i + 1, 2, "White"));
    }
    for (int i = 0; i <= 7; i++) {
      black.add(new Pawn(i + 1, 7, "Black"));
    }

    gameTimer = new Timer(200, this);

    gameTimer.start();
    repaint();
  }

  public void gameLoop() {}

  public void draw(Graphics g) {

    // draw board
    for (int i = 1; i <= 8; i++) {
      for (int j = 1; j <= 8; j++) {
        g.setColor((i % 2 == 1 && j % 2 == 1) || (i % 2 == 0 && j % 2 == 0) ? creme : brown);
        g.fillRect(i * 40, j * 40, 40, 40);
      }
    }

    // draw pieces
    for (Piece p : white) p.draw(g);
    for (Piece p : black) p.draw(g);
  }

  public void paintComponent(Graphics g) {
    super.paintComponent(g);
    draw(g);
  }

  public void actionPerformed(ActionEvent e) {
    gameLoop();
    repaint();
  }
}