Forum: Problem med gameloop i C# (nybörjare)

 
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
 
namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        int playerposx = 50;
        int playerposy = 50;
 
        public Form1()
        {
 
            KeyDown += new KeyEventHandler(Form1_KeyDown);
            KeyUp += new KeyEventHandler(Form1_KeyUp);
            Paint += new PaintEventHandler(Form1_Paint);
            InitializeComponent();
            timer1.Start ();
        }
 
 
 
 
        bool[] knappar = new bool[255];
 
        void Form1_KeyDown(object sender, KeyEventArgs e)
        {
                knappar[(int)e.KeyCode] = true;
        }
 
 
        void Form1_KeyUp(object sender, KeyEventArgs e)
        {
            knappar[(int)e.KeyCode] = false;
        }
 
 
        void gamelooptimer_tick()
            {
                while (knappar[(int)Keys.Up] == true)
                {
 
                    playerposy = playerposy - 2;
                }
  
            }
 
 
        void Form1_Paint(object sender, PaintEventArgs e)
        {
            Graphics player = e.Graphics;
            player.FillEllipse(Brushes.Lime, new Rectangle(playerposx, playerposy, 50, 50));
            
        }
 
        private void timer1_Tick(object sender, EventArgs e)
        {
 
                Refresh();
        }
    }
}