TicTacToeWinDetectionFunction.swift

func winDetection() -> Bool {

    //Check rows
    for i in 0...2 {
        if((board[3*i] == board[3*i + 1]) && (board[3*i] == board[3*i + 2]) && !(String(board[3*i]) == "EMPTY")){
            print("Someone won at row:")
            print(i)
            print( board[i])
            return true
        }
    }

    //Check columns
    for j in 0...2 {
        if((board[j] == board[j + 3]) && (board[j] == board[j + 6]) && !(String(board[j]) == "EMPTY")){
            print("Someone won at column:")
            print(j)
            print( board[j])
            return true
        }
    }

    //Check diagonals
    if((board[0] == board[4]) && (board[0] == board[8]) && !(String(board[0]) == "EMPTY")){
        print("Someone won at diagonal 1")
        return true
    }
    if((board[2] == board[4]) && (board[2] == board[6]) && !(String(board[2]) == "EMPTY")){
        print("Someone won at diagonal 2")
        return true
    }

    return false
}