import javax.swing.JComponent;

public class Game extends JComponent{
	/**
	 *
	 */
	private static final long serialVersionUID = 1L;
	public GamePiece[][] gameBoard;

	public Game() {
		gameBoard = new GamePiece[4][4];
		for (int k = 0; k < 4; k++) {
			for (int j = 0; j < 4; j++) {
				int x = 12 + (160 + 12) * k;
				int y = 12 + (160 + 12) * j;
				gameBoard[k][j] = new GamePiece(x, y, 0);
			}
		}
	}

	public void start() {

	}

	public void restart() {
		for (int k = 0; k < 4; k++) {
			for (int j = 0; j < 4; j++) {
				gameBoard[k][j].setValue(0);
			}
		}
	}

	public void random() {
		int randomRow = (int) Math.random() * 4;
		int randomCol = (int) Math.random() * 4;
		while(gameBoard[randomRow][randomCol].getValue() == 0) {
			randomRow = (int) Math.random() * 4;
			randomCol = (int) Math.random() * 4;
		}
		gameBoard[randomRow][randomCol].setValue(2);
	}

	public void up() {
		System.out.println("Up Arrow Pressed");
		for (int c = 0; c < 4; c++) {
			for (int r = 3; r > 0; r--) {
				if (gameBoard[r][c] == gameBoard[r - 1][c]) {
					gameBoard[r][c - 1].setValue(gameBoard[r][c].getValue() * 2);
					gameBoard[r][c].setValue(0);
					gameBoard[r][c].moveUp();
				}
			}
		}
		random();
	}

	public void down() {
		System.out.println("Down Arrow Pressed");
		for (int c = 0; c < 4; c++) {
			for (int r = 0; r < 4; r++) {
				if (gameBoard[r][c] == gameBoard[r + 1][c]) {
					gameBoard[r][c + 1].setValue(gameBoard[r][c].getValue() * 2);
					gameBoard[r][c].setValue(0);
					gameBoard[r][c].moveDown();
				}
			}
		}
		random();
	}