private void RebuildSegments()
{
VertexCount = 0;
var newSegments = new Dictionary <uint, TriangleSegment>();
foreach (var segment in Segments)
{
TriangleSegment newSegment = new TriangleSegment
{
ID = segment.Key,
StartIndex = VertexCount
};
for (int i = segment.Value.StartIndex; i < segment.Value.EndIndex; i++)
{
VertexScratch[VertexCount] = Verticies[i];
VertexCount++;
}
newSegment.EndIndex = VertexCount;
newSegments[newSegment.ID] = newSegment;
}
Datastructures.Swap(ref Segments, ref newSegments);
Datastructures.Swap(ref Verticies, ref VertexScratch);
Buffer.SetData(Verticies);
}
private uint AddSegment(int count)
{
if (VertexCount >= MaxVertexSpace)
{
return(0);
}
TriangleSegment newSegment = new TriangleSegment
{
ID = MaxSegment,
StartIndex = VertexCount,
EndIndex = VertexCount + count
};
MaxSegment++;
VertexCount += count;
Segments.Add(newSegment.ID, newSegment);
if (Buffer == null)
{
Buffer = new DynamicVertexBuffer(Device, ThickLineVertex.VertexDeclaration, MaxTriangles * 3, BufferUsage.None);
}
Buffer.SetData(Verticies);
return(newSegment.ID);
}