public D2dSplitGroup CreateSplitGroup(bool feather, bool allowExpand)
{
if (feather == true)
{
//D2dFloodfill.Feather(this);
}
var group = D2dSplitGroup.GetSplitGroup();
for (var j = Pixels.Count - 1; j >= 0; j--)
{
var pixel = Pixels[j];
group.AddPixel(pixel.X, pixel.Y);
}
// Feather will automatically add a transparent border
if (allowExpand == true && feather == false)
{
group.Rect.MinX -= 1;
group.Rect.MaxX += 1;
group.Rect.MinY -= 1;
group.Rect.MaxY += 1;
}
return(group);
}
public static void Fracture(D2dDestructible destructible, int count, float irregularity)
{
if (destructible != null && count > 0)
{
D2dSplitGroup.ClearAll();
{
var width = destructible.AlphaWidth;
var height = destructible.AlphaHeight;
var mainQuad = new D2dQuad();
quadCount = 1;
pointCount = 0;
xMin = 0;
xMax = width - 1;
yMin = 0;
yMax = height - 1;
mainQuad.BL = new D2dVector2(xMin, yMin);
mainQuad.BR = new D2dVector2(xMax, yMin);
mainQuad.TL = new D2dVector2(xMin, yMax);
mainQuad.TR = new D2dVector2(xMax, yMax);
mainQuad.Calculate();
if (quads.Count > 0)
{
quads[0] = mainQuad;
}
else
{
quads.Add(mainQuad);
}
for (var i = 0; i < count; i++)
{
SplitLargest();
}
if (irregularity > 0.0f)
{
FindPoints();
ShiftPoints(irregularity);
}
for (var i = 0; i < quadCount; i++)
{
var quad = quads[i];
var group = D2dSplitGroup.GetSplitGroup();
group.AddTriangle(quad.BL, quad.BR, quad.TL);
group.AddTriangle(quad.TR, quad.TL, quad.BR);
}
destructible.SplitWhole(D2dSplitGroup.SplitGroups);
}
D2dSplitGroup.ClearAll();
}
}
