public ArrowBuilder(ConeBuilder cone, CylindreBuilder cylindre)
{
Shapes = new ShapeBuilder <MeshVertex>[] { cone, cylindre };
Transforms = new Matrix[2]
{
Matrix.RotationX(Numerics.PIover2) * Matrix.Translate(0, 0, 0.5f * cone.height + cylindre.height),
Matrix.RotationX(Numerics.PIover2) * Matrix.Translate(0, 0, 0.5f * cylindre.height)
};
}
public void Build()
{
DomeBuilder domeBuilder = new DomeBuilder(capStacks, capSlices, radius, false);
CylindreBuilder cylindreBuilder = new CylindreBuilder(trunkStacks, trunkSlices, radius, height, true);
vertices = new MeshVertex[2 * domeBuilder.Vertices.Length + cylindreBuilder.Vertices.Length];
indices = new ushort[2 * domeBuilder.Indices.Length + cylindreBuilder.Indices.Length];
#region Create Top Cap
for (int i = 0; i < domeBuilder.Vertices.Length; i++)
{
domeBuilder.Vertices[i].Position.Y += height * 0.5f;
}
Array.Copy(domeBuilder.Vertices, vertices, domeBuilder.Vertices.Length);
Array.Copy(domeBuilder.Indices, indices, domeBuilder.Indices.Length);
top = new ShapeLayer
{
PrimitiveCount = domeBuilder.Indices.Length / 3,
StartIndex = 0,
StartVertex = 0,
VertexCount = domeBuilder.Vertices.Length
};
#endregion
int vIndex = domeBuilder.Vertices.Length;
int iIndex = domeBuilder.Indices.Length;
#region Create Bottom Cap
for (int i = 0; i < domeBuilder.Indices.Length / 3; i++)
{
indices[iIndex++] = (ushort)(vIndex + domeBuilder.Indices[i * 3 + 2]);
indices[iIndex++] = (ushort)(vIndex + domeBuilder.Indices[i * 3 + 1]);
indices[iIndex++] = (ushort)(vIndex + domeBuilder.Indices[i * 3]);
}
for (int i = 0; i < domeBuilder.Vertices.Length; i++)
{
domeBuilder.Vertices[i].Position.Y *= -1;
vertices[vIndex++] = domeBuilder.Vertices[i];
}
bottom = new ShapeLayer
{
PrimitiveCount = domeBuilder.Indices.Length / 3,
StartIndex = domeBuilder.Indices.Length,
StartVertex = domeBuilder.Vertices.Length,
VertexCount = domeBuilder.Vertices.Length
};
#endregion
#region Trunk
for (int i = 0; i < cylindreBuilder.Indices.Length; i++)
{
indices[iIndex++] = (ushort)(vIndex + cylindreBuilder.Indices[i]);
}
for (int i = 0; i < cylindreBuilder.Vertices.Length; i++)
{
vertices[vIndex++] = cylindreBuilder.Vertices[i];
}
cylindre = new ShapeLayer
{
PrimitiveCount = cylindreBuilder.Indices.Length / 3,
StartIndex = domeBuilder.Indices.Length * 2,
StartVertex = domeBuilder.Vertices.Length * 2,
VertexCount = cylindreBuilder.Vertices.Length
};
#endregion
}
