using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static public void Main(string[] args)
{
Console.WriteLine("Welcome to tic-tac-toe!");
Console.WriteLine("Press enter to begin...");
Console.ReadLine();
int[] Data = Init();
int Turn = 1;
while(!(bool)Victory(Data)[0])
{
switch (Turn)
{
case 1:
Turn = 2;
break;
case 2:
Turn = 1;
break;
}
Draw(Data);
Input(Turn, Data);
}
Draw(Data);
Console.WriteLine(Symbol((int)Victory(Data)[1]) + " wins the game!");
Console.ReadLine();
}
static private int[] Init()
{
return new int[9];
}
static private void Draw(int[] Data)
{
Console.Clear();
Console.WriteLine("Controls:\n"); //Show controls
Console.WriteLine("+-+-+-+");
Console.WriteLine("|1|2|3|");
Console.WriteLine("+-+-+-+");
Console.WriteLine("|4|5|6|");
Console.WriteLine("+-+-+-+");
Console.WriteLine("|7|8|9|");
Console.WriteLine("+-+-+-+\n\n");
Console.WriteLine("Playing...\n"); //Show active board
Console.WriteLine("+-+-+-+");
Console.WriteLine("|" + Symbol(Data[0]) + "|" + Symbol(Data[1]) + "|" + Symbol(Data[2]) + "|");
Console.WriteLine("+-+-+-+");
Console.WriteLine("|" + Symbol(Data[3]) + "|" + Symbol(Data[4]) + "|" + Symbol(Data[5]) + "|");
Console.WriteLine("+-+-+-+");
Console.WriteLine("|" + Symbol(Data[6]) + "|" + Symbol(Data[7]) + "|" + Symbol(Data[8]) + "|");
Console.WriteLine("+-+-+-+\n");
}
static private string Symbol(int Val)
{
switch (Val)
{
case 1:
return "O";
case 2:
return "X";
default:
return " ";
}
}
static private object[] Victory(int[] Data)
{
object[] Win = new object[2];
Win[0] = false;
Win[1] = 0;
for (int i = 0; i < 9; i+=3) //Check for horizontal line
{
if (Data[i] == 0 || Data[i + 1] == 0 || Data[i + 2] == 0)
continue;
if (Data[i] == Data[i + 1] && Data[i + 1] == Data[i + 2])
{
Win[0] = true;
Win[1] = Data[i];
return Win;
}
}
for (int i = 0; i < 3; i++) //Check for vertical line
{
if (Data[i] == 0 || Data[i + 3] == 0 || Data[i + 6] == 0)
continue;
if (Data[i] == Data[i + 3] && Data[i + 3] == Data[i + 6])
{
Win[0] = true;
Win[1] = Data[i];
return Win;
}
}
if (Data[4] == 0)
return Win;
if (Data[0] == Data[4] && Data[4] == Data[8])
{
Win[0] = true;
Win[1] = Data[4];
return Win;
}
if (Data[6] == Data[4] && Data[4] == Data[2])
{
Win[0] = true;
Win[1] = Data[4];
return Win;
}
return Win;
}
static private void Input(int Turn, int[] Data)
{
Console.WriteLine("Place an " + Symbol(Turn));
int Pos = 0;
while (Pos == 0)
{
Console.WriteLine("Use numbers 1-9 to place");
try
{
Pos = Convert.ToInt32(Console.ReadLine());
}
catch (FormatException)
{
Console.WriteLine("ERROR: Not an int");
}
catch (OverflowException)
{
Console.WriteLine("ERROR: Number too large");
}
if (1 <= Pos && Pos <= 9)
{
if (Data[Pos - 1] == 0)
Data[Pos - 1] = Turn;
else
Pos = 0;
}
}
}
}
}