Arcade64/src/main/java/Minesweeper/MinesweeperGame.java

package Minesweeper;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class MinesweeperGame extends JPanel {

	private static final long serialVersionUID = 1L;
	private static final int WIDTH = 600, HEIGTH = 600;
	private static final int CELLSIZE = 40;
	private int playfieldSize;
	private int bombAmount;

	public Cell[][] playfield;

	public MinesweeperGame(int _playfieldSize, int _bombAmount) {
		this.setSize(WIDTH, HEIGTH);
		playfieldSize = _playfieldSize;
		bombAmount = _bombAmount;
		setLayout(null);

		initPlayfield();
	}

	private void initPlayfield() {

		playfield = new Cell[playfieldSize][playfieldSize];

		int[] bPlacment = new int[bombAmount];
		for (int i = 0; i < bPlacment.length; i++) {
			bPlacment[i] = (int) (Math.random() * playfieldSize * playfieldSize);

			for (int j = 0; j < i; j++) {
				if (bPlacment[i] == bPlacment[j]) {
					i--;
					break;
				}
			}
		}

		for (int i = 0; i < playfieldSize; i++) {
			for (int j = 0; j < playfieldSize; j++) {
				playfield[i][j] = new Cell(CellType.Number);
				
				playfield[i][j].setBounds(j * CELLSIZE + (WIDTH / 2 - playfieldSize * CELLSIZE / 2),
						i * CELLSIZE + (HEIGTH / 2 - playfieldSize * CELLSIZE / 2), CELLSIZE, CELLSIZE);
				add(playfield[i][j]);
				
				for (int k = 0; k < bPlacment.length; k++) {
					if (bPlacment[k] == i * playfieldSize + j) {
						playfield[i][j].type = CellType.Bomb;
						break;
					}
				}
			}
		}
	}

	public static void main(String[] args) {
		JFrame f = new JFrame();
		MinesweeperGame ttt = new MinesweeperGame(8, 10);

		f.add(ttt);
		f.setSize(WIDTH, HEIGTH);
		f.setLayout(null);
		f.setVisible(true);

	}

}