public void DrawSegment(FVector2 start, FVector2 end, Color color)
{
//if (!_primitiveBatch.IsReady())
//{
// throw new InvalidOperationException("BeginCustomDraw must be called before drawing anything.");
//}
lineListBatch.Add(FDVertex.FromLine(start, end, color));
//_primitiveBatch.AddVertex(start, color, PrimitiveType.LineList);
//_primitiveBatch.AddVertex(end, color, PrimitiveType.LineList);
}
public void DrawPolygon(FVector2[] vertices, int count, Color color)
{
//if (!_primitiveBatch.IsReady())
//{
// throw new InvalidOperationException("BeginCustomDraw must be called before drawing anything.");
//}
for (int i = 0; i < count - 1; i++)
{
lineListBatch.Add(FDVertex.FromLine(vertices[i], vertices[i + 1], color));
//_primitiveBatch.AddVertex(vertices[i], color, PrimitiveType.LineList);
//_primitiveBatch.AddVertex(vertices[i + 1], color, PrimitiveType.LineList);
}
lineListBatch.Add(FDVertex.FromLine(vertices[count - 1], vertices[0], color));
//_primitiveBatch.AddVertex(vertices[count - 1], color, PrimitiveType.LineList);
//_primitiveBatch.AddVertex(vertices[0], color, PrimitiveType.LineList);
}
public void DrawCircle(FVector2 center, float radius, Color color)
{
//if (!_primitiveBatch.IsReady())
//{
// throw new InvalidOperationException("BeginCustomDraw must be called before drawing anything.");
//}
const double increment = Math.PI * 2.0 / CircleSegments;
double theta = 0.0;
for (int i = 0; i < CircleSegments; i++)
{
FVector2 v1 = center + radius * new FVector2((float)Math.Cos(theta), (float)Math.Sin(theta));
FVector2 v2 = center +
radius *
new FVector2((float)Math.Cos(theta + increment), (float)Math.Sin(theta + increment));
lineListBatch.Add(FDVertex.FromLine(v1, v2, color));
//_primitiveBatch.AddVertex(v1, color, PrimitiveType.LineList);
//_primitiveBatch.AddVertex(v2, color, PrimitiveType.LineList);
theta += increment;
}
}
