68 lines
2.1 KiB
C#
68 lines
2.1 KiB
C#
using OECS;
|
||
|
||
namespace TicTacToe;
|
||
|
||
/// <summary>
|
||
/// Prints the board to the console.
|
||
/// </summary>
|
||
public class RenderSystem : ISystem
|
||
{
|
||
public QueryDescriptor Query { get; }
|
||
|
||
public RenderSystem(World world)
|
||
{
|
||
Query = world.Query().With<Cell>().Build();
|
||
}
|
||
|
||
public void Run(World world)
|
||
{
|
||
ref var state = ref world.GetSingleton<GameState>();
|
||
|
||
// Build a 3×3 grid.
|
||
var grid = new char[3, 3];
|
||
for (int r = 0; r < 3; r++)
|
||
for (int c = 0; c < 3; c++)
|
||
grid[r, c] = '.';
|
||
|
||
// Fill in placed marks.
|
||
var markQuery = world.Query().With<Cell>().With<Mark>().Build();
|
||
world.ForEach(markQuery, (Entity entity, ref Cell cell, ref Mark mark) =>
|
||
{
|
||
grid[cell.Row, cell.Col] = mark.Player == Player.X ? 'X' : 'O';
|
||
});
|
||
|
||
Console.WriteLine();
|
||
Console.WriteLine(" Tic-Tac-Toe");
|
||
Console.WriteLine(" ═══════════");
|
||
Console.WriteLine();
|
||
Console.WriteLine(" 0 1 2");
|
||
Console.WriteLine(" ┌───┬───┬───┐");
|
||
for (int r = 0; r < 3; r++)
|
||
{
|
||
Console.Write($"{r} │");
|
||
for (int c = 0; c < 3; c++)
|
||
{
|
||
Console.Write($" {grid[r, c]} ");
|
||
if (c < 2) Console.Write("│");
|
||
}
|
||
Console.WriteLine("│");
|
||
if (r < 2) Console.WriteLine(" ├───┼───┼───┤");
|
||
}
|
||
Console.WriteLine(" └───┴───┴───┘");
|
||
Console.WriteLine();
|
||
|
||
// Status line.
|
||
var statusText = state.Status switch
|
||
{
|
||
GameStatus.Playing => $"{(state.CurrentPlayer == Player.X ? 'X' : 'O')}'s turn (move {state.MoveCount + 1})",
|
||
GameStatus.XWon => "X wins!",
|
||
GameStatus.OWon => "O wins!",
|
||
GameStatus.Draw => "It's a draw!",
|
||
_ => ""
|
||
};
|
||
Console.WriteLine($" {statusText}");
|
||
Console.WriteLine();
|
||
Console.Write(" Enter row col (e.g. \"1 2\"): ");
|
||
}
|
||
}
|