public override Solid CreateSolid(AABB bounds)
{
Solid brush = new Solid {
Bounds = (AABB)bounds.Clone()
};
Vector3 min = bounds.Min;
Vector3 max = bounds.Max;
// create 4 top corners
Vector3 topLeftMax = new Vector3(min.X, max.Y, max.Z);
Vector3 topRightMax = new Vector3(max.X, max.Y, max.Z);
Vector3 bottomRightMax = new Vector3(max.X, min.Y, max.Z);
Vector3 bottomLeftMax = new Vector3(min.X, min.Y, max.Z);
// create 4 bottom corners
Vector3 topLeftMin = new Vector3(min.X, max.Y, min.Z);
Vector3 topRightMin = new Vector3(max.X, max.Y, min.Z);
Vector3 bottomRightMin = new Vector3(max.X, min.Y, min.Z);
Vector3 bottomLeftMin = new Vector3(min.X, min.Y, min.Z);
brush.VertexPositions.Add(topLeftMax);
brush.VertexPositions.Add(topRightMax);
brush.VertexPositions.Add(bottomRightMax);
brush.VertexPositions.Add(bottomLeftMax);
brush.VertexPositions.Add(topLeftMin);
brush.VertexPositions.Add(topRightMin);
brush.VertexPositions.Add(bottomRightMin);
brush.VertexPositions.Add(bottomLeftMin);
// front
brush.Faces.Add(CreateFace(7, 6, 5, 4));
// back
brush.Faces.Add(CreateFace(2, 3, 0, 1));
// top
brush.Faces.Add(CreateFace(4, 5, 1, 0));
// bottom
brush.Faces.Add(CreateFace(3, 2, 6, 7));
// left
brush.Faces.Add(CreateFace(3, 7, 4, 0));
// right
brush.Faces.Add(CreateFace(6, 2, 1, 5));
return(brush);
}
public override Solid CreateSolid(AABB bounds)
{
Solid brush = new Solid {
Bounds = (AABB)bounds.Clone()
};
Vector3 start = bounds.Min;
Vector3 end = bounds.Max;
// create 4 top corners
Vector3 topLeftMax = new Vector3(start.X, end.Y, end.Z);
Vector3 bottomRightMax = new Vector3(end.X, start.Y, end.Z);
Vector3 bottomLeftMax = new Vector3(start.X, start.Y, end.Z);
// create 4 bottom corners
Vector3 topLeftMin = new Vector3(start.X, end.Y, start.Z);
Vector3 bottomRightMin = new Vector3(end.X, start.Y, start.Z);
Vector3 bottomLeftMin = new Vector3(start.X, start.Y, start.Z);
brush.VertexPositions.Add(topLeftMax);
brush.VertexPositions.Add(bottomRightMax);
brush.VertexPositions.Add(bottomLeftMax);
brush.VertexPositions.Add(topLeftMin);
brush.VertexPositions.Add(bottomRightMin);
brush.VertexPositions.Add(bottomLeftMin);
// right
brush.Faces.Add(CreateFace(5, 4, 3));
// left
brush.Faces.Add(CreateFace(1, 2, 0));
// bottom
brush.Faces.Add(CreateFace(2, 1, 4, 5));
// back
brush.Faces.Add(CreateFace(2, 5, 3, 0));
// top
brush.Faces.Add(CreateFace(4, 1, 0, 3));
return(brush);
}
public override Solid CreateSolid(AABB bounds)
{
int piePieces = sidesPropertyControl.Sides;
Solid solidCone = new Solid();
SolidFace bottomFace = new SolidFace();
// create 4 corners points for the box
float halfWidth = (bounds.Max.X - bounds.Min.X) / 2.0f;
float halfHeight = (bounds.Max.Y - bounds.Min.Y) / 2.0f;
float halfDepth = (bounds.Max.Z - bounds.Min.Z) / 2.0f;
solidCone.Bounds = (AABB)bounds.Clone();
solidCone.VertexPositions.Add(new Vector3(bounds.Center.X, bounds.Center.Y, -halfDepth));
float degToRad = (float)(Math.PI / 180.0);
float radPiece = (360.0f / piePieces * degToRad);
// create vertices
for (int i = 0; i < piePieces; i++)
{
SolidIndex index = new SolidIndex();
Vector3 position = new Vector3
{
X = (float)Math.Cos(i * -radPiece) * halfWidth,
Y = (float)Math.Sin(i * -radPiece) * halfHeight,
Z = halfDepth
};
index.Index = i + 1;
solidCone.VertexPositions.Add(bounds.Center + position);
bottomFace.Indices.Add(index);
}
solidCone.Faces.Add(bottomFace);
int vertexCount = solidCone.VertexPositions.Count;
// generate body
for (int i = 0; i < piePieces; i++)
{
int index = i + 1;
int nextIndex = index + 1;
if (nextIndex == vertexCount)
{
nextIndex = 1;
}
SolidFace bodyFace = new SolidFace();
SolidIndex a = new SolidIndex {
Index = 0
};
SolidIndex b = new SolidIndex {
Index = index
};
SolidIndex c = new SolidIndex {
Index = nextIndex
};
bodyFace.Indices.Add(c);
bodyFace.Indices.Add(b);
bodyFace.Indices.Add(a);
solidCone.Faces.Add(bodyFace);
}
return(solidCone);
}
public override Solid CreateSolid(AABB bounds)
{
int piePieces = sidesPropertyControl.Sides;
Solid solidCylinder = new Solid();
SolidFace topFace = new SolidFace();
SolidFace bottomFace = new SolidFace();
solidCylinder.Bounds = (AABB)bounds.Clone();
Vector3 center = bounds.Center;
// create 4 corners points for the box
float halfWidth = (bounds.Max.X - bounds.Min.X) / 2.0f;
float halfHeight = (bounds.Max.Y - bounds.Min.Y) / 2.0f;
float halfDepth = (bounds.Max.Z - bounds.Min.Z) / 2.0f;
float degToRad = (float)(Math.PI / 180.0);
float radPiece = (360.0f / piePieces * degToRad);
// create top and bottom face
for (int i = 0; i < piePieces; i++)
{
SolidIndex topIndex = new SolidIndex();
SolidIndex bottomIndex = new SolidIndex();
Vector3 position = new Vector3
{
X = (float)Math.Cos(i * radPiece) * halfWidth,
Y = (float)Math.Sin(i * radPiece) * halfHeight
};
solidCylinder.VertexPositions.Add(center + new Vector3(position.X, position.Y, -halfDepth));
solidCylinder.VertexPositions.Add(center + new Vector3(position.X, position.Y, halfDepth));
topIndex.Index = i * 2;
bottomIndex.Index = piePieces * 2 - (i * 2 + 1);
topFace.Indices.Add(topIndex);
bottomFace.Indices.Add(bottomIndex);
}
solidCylinder.Faces.Add(topFace);
solidCylinder.Faces.Add(bottomFace);
// generate body
for (int i = 0; i < piePieces; i++)
{
int nextIndex = i + 1;
if (nextIndex == piePieces)
{
nextIndex = 0;
}
SolidFace bodyFace = new SolidFace();
SolidIndex a = new SolidIndex();
SolidIndex b = new SolidIndex();
SolidIndex c = new SolidIndex();
SolidIndex d = new SolidIndex();
a.Index = i * 2;
b.Index = i * 2 + 1;
c.Index = nextIndex * 2 + 1;
d.Index = nextIndex * 2;
bodyFace.Indices.Add(a);
bodyFace.Indices.Add(b);
bodyFace.Indices.Add(c);
bodyFace.Indices.Add(d);
solidCylinder.Faces.Add(bodyFace);
}
return(solidCylinder);
}