public static Bitmap GetSurfaceMap(string filepath, HeightmapType surfaceType, bool mcMapShading)
{
Region r = LoadRegion(filepath);
var hm = r.GetHeightmapFromNBT(surfaceType);
for (int z = 0; z < 512; z++)
{
for (int x = 0; x < 512; x++)
{
short y = hm[x, z];
while (!Blocks.IsBlockForMap(r.GetBlock(x, y, z), surfaceType) && y > 0)
{
y--;
}
hm[x, z] = y;
}
}
Bitmap bmp = new Bitmap(512, 512, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
for (int z = 0; z < 512; z++)
{
for (int x = 0; x < 512; x++)
{
int y = hm[x, z];
var block = r.GetBlock(x, y, z);
if (block.IsAir && y > 0)
{
throw new ArgumentException("the mapped block was air.");
}
int shade = 0;
if (mcMapShading && z > 0)
{
if (block.IsWater)
{
//Water dithering
var depth = r.GetWaterDepth(x, y, z);
if (depth < 8)
{
shade = 1;
}
else if (depth < 16)
{
shade = 0;
}
else
{
shade = -1;
}
if (depth % 8 >= 4 && shade > -1)
{
if (x % 2 == z % 2)
{
shade--;
}
}
}
else
{
int above = hm[x, z - 1];
if (above > y)
{
shade = -1;
}
else if (above < y)
{
shade = 1;
}
}
}
bmp.SetPixel(x, z, Blocks.GetMapColor(block, shade));
}
}
return(bmp);
}
