protected RoamVertex AllocVertex()
{
var vertex = new RoamVertex();
vertex.InsertBefore(ActiveVertexes);
return(vertex);
}
// public Vector3d Center;
// public double TwoDivArea; // 2/area
// public double Radius; // radius
public void Init(RoamVertex v0, RoamVertex v1, RoamVertex v2, Vector2d tex0, Vector2d tex1, Vector2d tex2, ushort material)
{
Material = material;
SetVertexes(v0, v1, v2);
TextureCoords0 = tex0;
TextureCoords1 = tex1;
TextureCoords2 = tex2;
}
public void Set(RoamTriangle parent, RoamVertex v0, RoamVertex v1, RoamVertex v2, Vector2d texCoord0, Vector2d texCoord1, Vector2d texCoord2)
{
SetVertexes(v0, v1, v2);
TextureCoords0 = texCoord0;
TextureCoords1 = texCoord1;
TextureCoords2 = texCoord2;
Parent = parent;
Level = (ushort)(parent.Level + 1);
Flags = RoamTriangleFlags.Modified;
Material = parent.Material;
}
void SetVertexes(RoamVertex v0, RoamVertex v1, RoamVertex v2)
{
Vertexes0 = v0;
Vertexes1 = v1;
Vertexes2 = v2;
//Center = Vector3d.Center(v0.Position, v1.Position, v2.Position);
// Compute plane and area
// Vector3d n = Vector3d.CrossProduct(v2.Position - v1.Position, v0.Position - v1.Position);
// _area = 1 / n.Abs();
// plane.x = n.x _area;
// plane.y = n.y _area;
// plane.z = n.z _area;
// plane.w = -(plane.x center.x + plane.y center.y + plane.z center.z);
// double r = center.distance2(v0.position);
// double rt = center.distance2(v1.position);
// if (rt > r) r = rt;
// rt = center.distance2(v2.position);
// if (rt > r) r = rt;
// radius = sqrt(r);
}
public bool HasVertex(RoamVertex v)
{
return(Vertexes0 == v || Vertexes1 == v || Vertexes2 == v);
}
protected void FreeVertex(RoamVertex vertex)
{
vertex.Remove();
}
// {
// vertex.LinearPosition = normal;
// vertex.Normal = normal;
// vertex.Position = normal;
// }
protected abstract void ComputeVertexAltitude(RoamVertex vertex, RoamTriangle triangle);
protected abstract void ComputeVertexAltitude(RoamVertex vertex, Vector3d position);
