Life Outside PLT1

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
 
namespace SnakeCSharp
{
	public partial class SnakeCSharpWindow : Form
	{
		private Timer t = new Timer();
		private static Random myRnd = new Random();
		private Point apple = new Point(myRnd.Next(64-1) * 10, myRnd.Next(48-1) * 10);
		private Point dir = new Point(0, 10);
		private LinkedList<Point> snake = new LinkedList<Point>(); //LinkedList doesn't have add...
 
		public SnakeCSharpWindow()
		{
			this.ClientSize = new System.Drawing.Size(640, 480);
			this.FormBorderStyle = FormBorderStyle.FixedSingle;
			this.Name = "SnakeCSharpWindow";
			this.Text = "SnakeCSharp";
			this.Paint += new PaintEventHandler(SnakeCSharpWindow_Paint);
			this.KeyDown += new KeyEventHandler(SnakeCSharpWindow_KeyDown);
			t.Tick += new EventHandler(t_Tick);
			t.Start();
			snake.AddFirst(new Point(10,10));
		}
 
		void SnakeCSharpWindow_KeyDown(object sender, KeyEventArgs e) //Change direction
		{
			if (e.KeyCode == Keys.Left) {dir = new Point (-10,0 );}
			if (e.KeyCode == Keys.Right) {dir = new Point(10, 0);}
			if (e.KeyCode == Keys.Up) {dir = new Point(0, -10);}
			if (e.KeyCode == Keys.Down) {dir = new Point(0, 10);}
		}
 
		void SnakeCSharpWindow_Paint(object sender, PaintEventArgs e)
		{
			e.Graphics.FillRectangle(Brushes.Green, apple.X  + 2, apple.Y + 2, 5, 5);
 
			int i = 0;
			foreach (Point cur in snake)  //Draw snake and check self collision
			{
				e.Graphics.FillRectangle(Brushes.Black, cur.X, cur.Y, 10, 10);
				if (i != 0 && snake.First.Value.X == cur.X && snake.First.Value.Y == cur.Y ) { t.Stop(); }
				i++;
			}
 
			if (snake.First.Value.X == apple.X && snake.First.Value.Y == apple.Y) //Collision apple
			{
				apple = new Point((myRnd.Next(64-1)) * 10, (myRnd.Next(48-1)) * 10);
				snake.AddLast(snake.Last.Value);
			}
 
		}
		void t_Tick(object sender, EventArgs e) //Move Snake
		{
			snake.AddFirst(new Point(snake.First.Value.X + dir.X, snake.First.Value.Y + dir.Y));
			snake.RemoveLast();
			this.Refresh();
		}
	}
}