package objectstructures;

public class TicTacToe {

	char[][] board = new char [3][3];
	private char player;

	public TicTacToe() {
		player = 'x';
		for(int i=0; i<3; i++) {
			for(int k=0; k<3; k++) {
				board[i][k] = ' ';
			}
		}
	}

	public char getCell(int x, int y) {
		return board[x][y];
	}

	public boolean isOccupied(int x, int y) {
		char chr = getCell(x, y);
		if (chr != ' ') {
			return true;
		}
		return false;
	}

	public boolean setCell(char c, int x, int y) {
		if (isOccupied(x, y)) {
			return false;
		}
		board[x][y] = c;
		return true;

	}

	public char getCurrentPlayer() {
		return player;
	}

	public String toString() {
		String s = "";
        s += "\n " + getCell(0,0) + " | " + getCell(0,1) + " | " + getCell(0,2);
        s += "\n-----------";
        s += "\n " + getCell(1,0) + " | " + getCell(1,1) + " | " + getCell(1,2);
        s += "\n-----------";
        s += "\n " + getCell(2,0) + " | " + getCell(2,1) + " | " + getCell(2,2);
        s += "\n";

        if(isWinner('x')) {
        	return s + "\n" + "x won!";
        }else if(isWinner('o')){
        	return s + "\n"+ "o won!";
        }else if(isFinished()){
        	return s + "\n" + "It's a tie";
        }else{
        	return s + "\n" + "Spiller =" + player;
        }




	}

	//public static void main(String[] args) {
		//TicTacToe tic = new TicTacToe();
		//System.out.println(tic);
	//}

	public void play(int x, int y) {
		if(setCell(player, x, y)){
			if(player == 'x'){
				player = 'o';
			}else{
				player = 'x';
			}
		}
	}

	public boolean isWinner(char c) {
		if (getCell(0, 0) == c && getCell(0, 1) == c && getCell(0, 2) == c) {
            return true;
        }
        if (getCell(1, 0) == c && getCell(1, 1) == c && getCell(1, 2) == c) {
            return true;
        }
        if (getCell(2, 0) == c && getCell(2, 1) == c && getCell(2, 2) == c) {
            return true;
        }
        // Sjekker om spiller c har vunnet loddrett:
        if (getCell(0, 0) == c && getCell(1, 0) == c && getCell(2, 0) == c) {
            return true;
        }
        if (getCell(0, 1) == c && getCell(1, 1) == c && getCell(2, 1) == c) {
            return true;
        }
        if (getCell(0, 2) == c && getCell(1, 2) == c && getCell(2, 2) == c) {
            return true;
        }
        // Sjekker om spiller c har vunnet diagonalt:
        if (getCell(0, 0) == c && getCell(1, 1) == c && getCell(2, 2) == c) {
            return true;
        }
        if (getCell(0, 2) == c && getCell(1, 1) == c && getCell(2, 0) == c) {
            return true;
        }
        return false;
	}

	public boolean hasWinner() {
		if(isWinner('x') || isWinner('o')) {
			return true;
		}
		return false;
	}

	public boolean isFinished() {
		if(hasWinner()) {
			return true;
		}else{
			for(int i=0; i<3; i++) {
				for(int k=0; k<3; k++) {
					if(board[i][k] == ' ') {
						return false;
					}
					return true;
				}
		} return false;
	}
}

	public void getInput(String in) {
		int x = Integer.valueOf(in.substring(0,1));
		int y = Integer.valueOf(in.substring(1));

		if(!isFinished()) {
			play(x, y);
		}
	}
}