Mi a hiba a kóddal? (C# kicsit bonyolult lehet, v agyis nekem az)

Egy Snake játékon dolgozom. Az elmélet az lenne, hogy míg 1 pixelt arré megy a kukac feje addig a progi lerakjon egy új "lapot" ezáltal törölve a régi helyzetet. De nem rak le új lapot, hanem csak folyamatosan csíkot húz a kígyó.

A kód ez lenne:

using System;

using System.Windows.Forms;

using System.Collections.Generic;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Text;

using System.Drawing;

using System.Drawing.Drawing2D;

namespace Snake

{

public struct SnakePart

{

public Rectangle snakeRec;

public Bitmap snakeBitMap;

public Point middlePoint;

public Point upMiddle;

public Point downMiddle;

public Point leftMiddle;

public Point rightMiddle;

public Point turnPoint;

public Point Direction;

}

public partial class Form1 : Form

{

Bitmap myBitmap;

Bitmap originalBitmap;

Graphics g;

Bitmap SnakeHead;

//Point pont = new Point(150, 150);

int min = 0;

int max = 341;

int Counter = 0;

Random X = new Random();

Point celpont = new Point(20, 20);

Point currentDir = new Point();

private Keys m_keys;

SnakePart[] snakePart = new SnakePart[30];

public Form1()

{

InitializeComponent();

myBitmap = new Bitmap(this.Width, this.Height);

originalBitmap = new Bitmap(this.Width, this.Height);

SnakeHead = new Bitmap("kukac\\kigyo.png");

Bitmap snakeBitmap = new Bitmap(20, 20);

for (int x = 0; x < this.Width - 1; x++)

for (int y = 0; y < this.Height - 1; y++)

originalBitmap.SetPixel(x, y, Color.Gray);

for(int x = 0; x < 10; x++)

for (int y = 0; y < 10; y++)

snakeBitmap.SetPixel(x, y, Color.Blue);

myBitmap = originalBitmap;

g = Graphics.FromImage(myBitmap);

celpont.X = X.Next(min, max);

celpont.Y = X.Next(min, max);

timer1.Interval = 1;

timer1.Enabled = true;

timer1.Start();

timer1.Tick += new EventHandler(timer1_Tick);

AddSnakePart(new Point(50, 60), new Point(1, 0), SnakeHead, new Point(-1, -1));

//DrawSnakeParts();

}

private void Form1_KeyDown(object sender, KeyEventArgs e)

{

m_keys = e.KeyCode;

}

private void timer1_Tick(object sender, EventArgs e)

{

if (m_keys == Keys.Left)

{

currentDir = new Point(-1, 0);

}

if (m_keys == Keys.Right)

{

currentDir = new Point(1, 0);

}

if (m_keys == Keys.Up)

{

currentDir = new Point(0, -1);

}

if (m_keys == Keys.Down)

{

currentDir = new Point(0, 1);

}

UpdateSnakeParts();

DrawSnakeParts();

}

private void AddSnakePart(Point currentMiddlePoint, Point Direction, Bitmap SnakeBitMap, Point turnPoint)

{

Rectangle currentSnakePart = new Rectangle();

if (Direction == new Point(0, -1))

{

currentSnakePart = new Rectangle(currentMiddlePoint.X - 10, currentMiddlePoint.Y + 10, 20, 20);

}

else if (Direction == new Point(0, 1))//Itt a lefele irányt vizsgáljuk

{

currentSnakePart = new Rectangle(currentMiddlePoint.X - 10, currentMiddlePoint.Y - 10, 20, 20);

}

else if (Direction == new Point(-1, 0))//Itt a balra irányt vizsgáljuk

{

currentSnakePart = new Rectangle(currentMiddlePoint.X + 10, currentMiddlePoint.Y - 10, 20, 20);

}

else if (Direction == new Point(1, 0))//Itt a jobbra irányt vizsgáljuk

{

currentSnakePart = new Rectangle(currentMiddlePoint.X - 10, currentMiddlePoint.Y + 10, 20, 20);

}

snakePart[Counter].snakeRec = currentSnakePart;

snakePart[Counter].middlePoint = new Point(currentSnakePart.Left + currentSnakePart.Width / 2, currentSnakePart.Top + currentSnakePart.Height / 2);

snakePart[Counter].leftMiddle = new Point(snakePart[Counter].middlePoint.X - 10, snakePart[Counter].middlePoint.Y);

snakePart[Counter].upMiddle = new Point(snakePart[Counter].middlePoint.X, snakePart[Counter].middlePoint.Y - 10);

snakePart[Counter].downMiddle = new Point(snakePart[Counter].middlePoint.X, snakePart[Counter].middlePoint.Y + 10);

snakePart[Counter].rightMiddle = new Point(snakePart[Counter].middlePoint.X + 10, snakePart[Counter].middlePoint.Y);

snakePart[Counter].snakeBitMap = SnakeBitMap;

snakePart[Counter].turnPoint = turnPoint;

snakePart[Counter].Direction = Direction;

}

private void DrawSnakeParts()

{

for (int x = 0; x < this.Width - 1; x++)

for (int y = 0; y < this.Height - 1; y++)

{

//myBitmap.SetPixel(x, y, Color.Gray);

}

myBitmap = ClearBitmap(myBitmap); ;

g.DrawImage(snakePart[Counter].snakeBitMap, snakePart[Counter].snakeRec);

pictureBox1.Image = originalBitmap;

}

private void UpdateSnakeParts()

{

snakePart[Counter].Direction = currentDir;

snakePart[Counter].snakeRec.X += currentDir.X;

snakePart[Counter].snakeRec.Y += currentDir.Y;

snakePart[Counter].middlePoint = new Point(snakePart[Counter].snakeRec.Left + snakePart[Counter].snakeRec.Width / 2, snakePart[Counter].snakeRec.Top + snakePart[Counter].snakeRec.Height / 2);

snakePart[Counter].leftMiddle = new Point(snakePart[Counter].middlePoint.X - 10, snakePart[Counter].middlePoint.Y);

snakePart[Counter].upMiddle = new Point(snakePart[Counter].middlePoint.X, snakePart[Counter].middlePoint.Y - 10);

snakePart[Counter].downMiddle = new Point(snakePart[Counter].middlePoint.X, snakePart[Counter].middlePoint.Y + 10);

snakePart[Counter].rightMiddle = new Point(snakePart[Counter].middlePoint.X + 10, snakePart[Counter].middlePoint.Y);

}

private Bitmap ClearBitmap(Bitmap bitmapToClear)

{

bitmapToClear = originalBitmap;

return bitmapToClear;

}

}

}

Nem kellenek alternatív megoldások, persze azokat is köszönöm, ha valaki azzal szeretett volna segíteni, de nekem ennek a kódnak a hibája érdekelne most. Köszönöm előre :)