static void Main(string[] args)
{
var random = new Random();
var head = new Point(Console.WindowWidth / 2, Console.WindowHeight / 2);
var tail = new List <Point>();
var target = new Point(random.Next(0, Console.WindowWidth), random.Next(0, Console.WindowHeight));
int score = 0;
Direction dir = Direction.RIGHT;
bool lose = false;
Console.Title = "Snake";
while (true)
{
Console.SetCursorPosition(head.X, head.Y);
Console.Write(" ");
if (tail.Count > 0)
{
Point last = tail.Last();
Console.SetCursorPosition(last.X, last.Y);
Console.Write(" ");
}
if (Console.KeyAvailable)
{
switch (Console.ReadKey(true).Key)
{
case ConsoleKey.UpArrow: dir = Direction.UP; break;
case ConsoleKey.RightArrow: dir = Direction.RIGHT; break;
case ConsoleKey.DownArrow: dir = Direction.DOWN; break;
case ConsoleKey.LeftArrow: dir = Direction.LEFT; break;
case ConsoleKey.Escape: return;
}
}
if (tail.Count > 0)
{
if (tail.Count > 1)
{
for (int i = tail.Count - 1; i > 0; i--)
{
tail[i].Set(tail[i - 1]);
}
}
tail[0].Set(head);
}
switch (dir)
{
case Direction.UP: head.Add(0, -1); break;
case Direction.RIGHT: head.Add(1, 0); break;
case Direction.DOWN: head.Add(0, 1); break;
case Direction.LEFT: head.Add(-1, 0); break;
}
if (head.X < 0 || head.Y < 0 || head.X > Console.WindowWidth - 1 || head.Y > Console.WindowHeight - 2)
{
lose = true;
break;
}
foreach (var segment in tail)
{
if (segment == head)
{
lose = true;
break;
}
}
if (lose)
{
break;
}
if (head == target)
{
tail.Add(head.Copy());
target.Set(random.Next(0, Console.WindowWidth), random.Next(0, Console.WindowHeight));
score += 10;
}
Console.SetCursorPosition(target.X, target.Y);
Console.Write("$");
foreach (var segment in tail)
{
Console.SetCursorPosition(segment.X, segment.Y);
Console.Write("*");
}
Console.SetCursorPosition(head.X, head.Y);
Console.Write("@");
Console.SetCursorPosition(Console.WindowWidth / 2 - 4, Console.WindowHeight - 1);
Console.Write("Score: {0}", score);
Thread.Sleep(100);
}
if (lose)
{
Console.SetCursorPosition(Console.WindowWidth / 2 - 4, Console.WindowHeight / 2 - 1);
Console.Write("You Lose!");
Console.ReadKey(true);
}
}