/// <summary>
/// Draws the Bounding Box and BoundingSphere
/// </summary>
/// <param name="world"></param>
/// <param name="view"></param>
/// <param name="projection"></param>
public void DrawBounding(ref Matrix world, ref Matrix view, ref Matrix projection)
{
Vector3[] lines = BoundingBox.ToRenderLines();
engine.DrawLines(lines, new Vector4(1, 0, 0, 1), ref world, ref view, ref projection);
VerticesVector3Indices result = BoundingSphere.ToRenderLines(30);
engine.DrawLines(result.Vertices, result.Indices, new AIOEngine.MathSpace.Vector4(0, 0, 1, 1), ref world, ref view, ref projection);
}
public VerticesVector3Indices ToRenderLines(int numSubdivisions)
{
VerticesVector3Indices r = new VerticesVector3Indices();
// Reservamos memoria para los vértices
int numVerticesPerCircle = numSubdivisions;
int numVertices = numVerticesPerCircle * 3;
r.Vertices = new Vector3[numVertices];
// Reservamos memoria para los índices
int numIndicesPerCircle = numVerticesPerCircle * 2;
int numIndices = numIndicesPerCircle * 3;
r.Indices = new uint[numIndices];
int c1_offs = 0;
int c2_offs = numVerticesPerCircle;
int c3_offs = numVerticesPerCircle * 2;
// Definimos los índices
for (int i = 0; i < numVerticesPerCircle; i++)
{
int idx1, idx2;
idx1 = i;
if (i < numVerticesPerCircle - 1)
{
idx2 = i + 1;
}
else
{
idx2 = 0;
}
r.Indices[c1_offs * 2 + i * 2 + 0] = (ushort)(idx1 + c1_offs);
r.Indices[c1_offs * 2 + i * 2 + 1] = (ushort)(idx2 + c1_offs);
r.Indices[c2_offs * 2 + i * 2 + 0] = (ushort)(idx1 + c2_offs);
r.Indices[c2_offs * 2 + i * 2 + 1] = (ushort)((idx2 > 0 ? idx2 : 0) + c2_offs);
r.Indices[c3_offs * 2 + i * 2 + 0] = (ushort)(idx1 + c3_offs);
r.Indices[c3_offs * 2 + i * 2 + 1] = (ushort)((idx2 > 0 ? idx2 : 0) + c3_offs);
}
float delta = (float)(2.0 * Math.PI) / numVerticesPerCircle;
for (int i = 0; i < numVerticesPerCircle; i++)
{
float radians = delta * i;
float cos = (float)Math.Cos(radians) * Radius;
float sin = (float)Math.Sin(radians) * Radius;
r.Vertices[c1_offs + i] = new Vector3(cos + center.X, sin + center.Y, center.Z);
r.Vertices[c2_offs + i] = new Vector3(cos + center.X, center.Y, sin + center.Z);
r.Vertices[c3_offs + i] = new Vector3(center.X, cos + center.Y, sin + center.Z);
}
return(r);
}
