public void Optimise()
{
Rectangle extents = heightmapData.FindTrimBounds(DefaultHeight);
if (heightmapData.Bounds != extents)
{
heightmapData = heightmapData.CopyWithNewBounds(extents, DefaultHeight);
}
}
/// <summary>Convert color data to a trimmed 1-bit mask</summary>
public static MaskData CreateMask(this Data2D <Color> data, Color color, bool inverse = false)
{
Rectangle trimBounds = data.FindTrimBounds(color, inverse);
// TODO: Avoid this copy...
Data2D <Color> trimData = data.CopyWithNewBounds(trimBounds);
MaskData mask = new MaskData(trimData.Bounds);
for (int y = trimData.StartY; y < trimData.EndY; y++)
{
for (int x = trimData.StartX; x < trimData.EndX; x++)
{
mask[x, y] = ((trimData[x, y] == color) != inverse);
}
}
return(mask);
}
// TODO: This is disabled at the moment, because it will probably make authoring difficult...
// (Also it's less of a big deal than physics heightmaps)
public void OptimiseForShadowReceiver()
{
if (heightmapData.Data == null)
{
return; // <- nothing to optimise
}
Debug.Assert(heightmapData.Data.Length > 0); // <- Data2D should be enforcing this condition
// See if we have a heightmap filled with just a single value:
byte startValue = heightmapData.Data[0];
for (int i = 0; i < heightmapData.Data.Length; i++)
{
if (heightmapData.Data[i] != startValue)
{
goto hasMoreThanOneValue;
}
}
// Convert to fixed-height:
DefaultHeight = startValue;
heightmapData = new Data2D <byte>();
return;
hasMoreThanOneValue:
Rectangle extents = heightmapData.FindTrimBoundsForShadowReceiver();
// Assert that we're shrinking (because if we expand, then we're adding in wrong data, due to DefaultHeight)
Debug.Assert(extents.Left >= heightmapData.Bounds.Left);
Debug.Assert(extents.Right <= heightmapData.Bounds.Right);
Debug.Assert(extents.Top >= heightmapData.Bounds.Top);
Debug.Assert(extents.Bottom <= heightmapData.Bounds.Bottom);
if (heightmapData.Bounds != extents)
{
heightmapData = heightmapData.CopyWithNewBounds(extents, DefaultHeight);
}
}