public Polygon(Vector3 v1, Vector3 v2, Vector3 v3) : base()
{
Pivot = Pivot.BasePivot(v1);
GlobalVertices = new[] { v1, v2, v3 };
LocalVertices = GlobalVertices.Select(v => Pivot.ToLocalCoords(v)).ToArray();
Indexes = new[] { 0, 1, 2 };
}
public Thor(Vector3 center, float radius1, float radius2, int frequency1, int frequency2) : base()
{
Pivot = Pivot.BasePivot(center);
GlobalVertices = new Vector3[frequency1 * frequency2];
Indexes = new int[frequency1 * frequency2 * 6];
Normals = new Vector3[frequency1 * frequency2];
NormalIndexes = new int[Indexes.Length];
var step1 = (float)Math.PI * 2 / frequency1;
var step2 = (float)Math.PI * 2 / frequency2;
var rPivot1 = Pivot.BasePivot(center);
for (int i = 0; i < frequency1; i++)
{
var rPivot2 = new Pivot(rPivot1.Center + rPivot1.XAxis * radius1, rPivot1.XAxis, rPivot1.YAxis, rPivot1.ZAxis);
for (int g = 0; g < frequency2; g++)
{
var global = GlobalVertices[i * frequency2 + g] = rPivot2.ToGlobalCoords(Vector3.UnitX * radius2);
rPivot2.Rotate(step2, Axis.Z);
}
rPivot1.Rotate(step1, Axis.Y);
}
for (int i = 0; i < frequency1 - 1; i++)
{
for (int g = 0; g < frequency2 - 1; g++)
{
int k = (i * frequency2 + g) * 6;
int i1 = Indexes[k] = i * frequency2 + g;
int i2 = Indexes[k + 1] = i * frequency2 + g + 1;
int i3 = Indexes[k + 2] = (i + 1) * frequency2 + g;
int i4 = Indexes[k + 3] = i * frequency2 + g + 1;
int i5 = Indexes[k + 4] = (i + 1) * frequency2 + g + 1;
int i6 = Indexes[k + 5] = (i + 1) * frequency2 + g;
var normal = VectorMath.GetNormal(GlobalVertices[i4], GlobalVertices[i5], GlobalVertices[i6]);
Normals[i * frequency2 + g] = normal;
NormalIndexes[(i * frequency2 + g) * 6] =
NormalIndexes[(i * frequency2 + g) * 6 + 1] =
NormalIndexes[(i * frequency2 + g) * 6 + 2] =
NormalIndexes[(i * frequency2 + g) * 6 + 3] =
NormalIndexes[(i * frequency2 + g) * 6 + 4] =
NormalIndexes[(i * frequency2 + g) * 6 + 5] = i * frequency2 + 1;
}
}
LocalVertices = GlobalVertices.Select(v => Pivot.ToLocalCoords(v)).ToArray();
}
public Cube(Vector3 center, float sideLen) : base()
{
Pivot = Pivot.BasePivot(center);
var delta = new float[] { -sideLen / 2, sideLen / 2 };
GlobalVertices = delta.SelectMany(n => delta.SelectMany(n1 => delta.Select(n2 => center + new Vector3(n, n1, n2)))).ToArray();
LocalVertices = GlobalVertices.Select(v => Pivot.ToLocalCoords(v)).ToArray();
Indexes = new int[]
{
1, 3, 2, //Poly1
1, 0, 2, //Poly2
5, 7, 6,
5, 4, 6,
1, 0, 4,
1, 5, 4,
3, 2, 6,
3, 7, 6,
1, 3, 7,
1, 5, 7,
0, 2, 6,
0, 4, 6
};
Texture = null;
TextureCoords = null;
TextureCoordsIndexes = null;
Normals = new Vector3[]
{
new Vector3(-1, 0, 0), //0
new Vector3(1, 0, 0), //1
new Vector3(0, 1, 0), //2
new Vector3(0, -1, 0), //3
new Vector3(0, 0, 1), //4
new Vector3(0, 0, -1), //5
};
NormalIndexes = new int[]
{
0, 0, 0,
0, 0, 0,
1, 1, 1,
1, 1, 1,
3, 3, 3,
3, 3, 3,
2, 2, 2,
2, 2, 2,
4, 4, 4,
4, 4, 4,
5, 5, 5,
5, 5, 5
};
}
