void MakeClassicTextures(Bitmap bmp)
{
int elemSize = bmp.Width / 16;
Size size = new Size(tileSize, tileSize);
terrainBmp = new Bitmap(tileSize * 2, tileSize);
terrainPixels = new FastBitmap(terrainBmp, true, false);
// Precompute the scaled background
using (FastBitmap src = new FastBitmap(bmp, true, true)) {
Drawer2DExt.DrawScaledPixels(src, terrainPixels, size,
new Rectangle(2 * elemSize, 0, elemSize, elemSize),
new Rectangle(tileSize, 0, tileSize, tileSize), 128, 64);
Drawer2DExt.DrawScaledPixels(src, terrainPixels, size,
new Rectangle(1 * elemSize, 0, elemSize, elemSize),
new Rectangle(0, 0, tileSize, tileSize), 96, 96);
}
}
void ClearTile(int x, int y, int width, int height, int srcX,
byte scaleA, byte scaleB, FastBitmap dst)
{
if (x >= Width || y >= Height)
{
return;
}
Rectangle srcRect = new Rectangle(srcX, 0, elemSize, elemSize);
const int tileSize = 48;
Size size = new Size(tileSize, tileSize);
int xOrig = x, xMax = x + width, yMax = y + height;
for ( ; y < yMax; y += tileSize)
{
for (x = xOrig; x < xMax; x += tileSize)
{
int x2 = Math.Min(x + tileSize, Math.Min(xMax, Width));
int y2 = Math.Min(y + tileSize, Math.Min(yMax, Height));
Rectangle dstRect = new Rectangle(x, y, x2 - x, y2 - y);
Drawer2DExt.DrawScaledPixels(terrainPixels, dst, size, srcRect, dstRect, scaleA, scaleB);
}
}
}
