using System.Drawing;

namespace FlowTimer {

public class SpriteSheet {

private Bitmap[] SubBitmaps;

public SpriteSheet(Bitmap bitmap, int spriteWidth, int spriteHeight) {

int numSpritesPerColumn = bitmap.Width / spriteWidth;

int numSpritesPerRow = bitmap.Height / spriteHeight;

SubBitmaps = new Bitmap[numSpritesPerColumn * numSpritesPerRow];

for(int x = 0; x < numSpritesPerColumn; x++) {

for(int y = 0; y < numSpritesPerRow; y++) {

int index = x + y * numSpritesPerColumn;

SubBitmaps[index] = new Bitmap(spriteWidth, spriteHeight);

using(Graphics graphics = Graphics.FromImage(SubBitmaps[index])) {

graphics.DrawImage(bitmap, new Rectangle(0, 0, spriteWidth, spriteHeight), x * spriteWidth, y * spriteHeight, spriteWidth, spriteHeight, GraphicsUnit.Pixel);

}

}

}

}

public Bitmap this[int index] {

get { return SubBitmaps[index]; }

}

}

}