// Token: 0x0600429B RID: 17051 RVA: 0x00152BC8 File Offset: 0x00150FC8
private static void CollapsePolygons(List <Polygon> polygon)
{
if (polygon.Count > 0)
{
bool flag = true;
while (flag)
{
flag = false;
for (int i = 0; i < polygon.Count; i++)
{
if (flag)
{
break;
}
for (int j = 0; j < polygon.Count; j++)
{
if (flag)
{
break;
}
if (i != j)
{
Polygon polygon2 = polygon[i];
Polygon polygon3 = polygon[j];
if (polygon2.IsPolygonInside(polygon3))
{
polygon2.AddHole(polygon3);
polygon.Remove(polygon3);
flag = true;
}
if (polygon3.IsPolygonInside(polygon2))
{
polygon3.AddHole(polygon2);
polygon.Remove(polygon2);
flag = true;
}
}
}
}
}
}
}
private void Triangulate(List <Dictionary <int, int> > contours, Utils.Plane plane, List <Vector3>[] vertices, List <Vector3>[] normals, List <Vector2>[] uvs, List <int>[] triangles, bool uvCutMesh)
{
if (contours.Count == 0 || contours[0].Count < 3)
{
return;
}
// prepare plane matrix
var m = plane.GetPlaneMatrix();
var mInv = m.inverse;
var zShit = 0.0f;
var polygons = new List <Polygon>(contours.Count);
// construct polygons from contours
Polygon highAreaPoly = null;
foreach (var ctr in contours)
{
var polygonPoints = new Vector2[ctr.Count];
var j = 0;
foreach (var i in ctr.Values)
{
var p = mInv * vertices[0][i];
polygonPoints[j++] = p;
// save z-coordinate
zShit = p.z;
}
var polygon = new Polygon(polygonPoints);
polygons.Add(polygon);
if (highAreaPoly == null || highAreaPoly.Area < polygon.Area)
{
highAreaPoly = polygon;
}
}
MeshUtils.Assert(polygons.Count > 0, "Zero polygons!");
// test for holes
if (polygons.Count > 0)
{
var polyToRemove = new List <Polygon>();
foreach (var polygon in polygons)
{
if (polygon != highAreaPoly)
{
if (highAreaPoly.IsPointInside(polygon.Points[0]))
{
highAreaPoly.AddHole(polygon);
polyToRemove.Add(polygon);
}
}
}
foreach (var polygon in polyToRemove)
{
polygons.Remove(polygon);
}
}
var vertCounter0 = vertices[0].Count;
var vertCounter1 = vertices[1].Count;
foreach (var polygon in polygons)
{
var indices = polygon.Triangulate();
// get polygon bounding square size
var min = Mathf.Min(polygon.Min.x, polygon.Min.y);
var max = Mathf.Max(polygon.Max.x, polygon.Max.y);
var polygonSize = min - max;
// MeshUtils.Log("PolygonSize: " + polygonSize + " " + polygon.Min + " " + polygon.Max);
foreach (var polyPoint in polygon.Points)
{
var p = m * new Vector3(polyPoint.x, polyPoint.y, zShit);
vertices[0].Add(p);
vertices[1].Add(p);
normals[0].Add(-plane.Normal);
normals[1].Add(plane.Normal);
if (uvCutMesh)
{
var uv0 = new Vector2((polyPoint.x - min) / polygonSize,
(polyPoint.y - min) / polygonSize);
var uv1 = new Vector2((polyPoint.x - min) / polygonSize,
(polyPoint.y - min) / polygonSize);
// normalize uv to fit cross-section uv area
var areaSizeX = crossSectionUV.z - crossSectionUV.x;
var areaSizeY = crossSectionUV.w - crossSectionUV.y;
uv0.x = crossSectionUV.x + uv0.x * areaSizeX;
uv0.y = crossSectionUV.y + uv0.y * areaSizeY;
uv1.x = crossSectionUV.x + uv1.x * areaSizeX;
uv1.y = crossSectionUV.y + uv1.y * areaSizeY;
uvs[0].Add(uv0);
uvs[1].Add(uv1);
}
else
{
uvs[0].Add(Vector2.zero);
uvs[1].Add(Vector2.zero);
}
}
var indicesCount = indices.Count;
var j = indicesCount - 1;
for (var i = 0; i < indicesCount; i++)
{
triangles[0].Add(vertCounter0 + indices[i]);
triangles[1].Add(vertCounter1 + indices[j]);
j--;
}
vertCounter0 += polygon.Points.Length;
vertCounter1 += polygon.Points.Length;
}
}
// Token: 0x060042AE RID: 17070 RVA: 0x00154E98 File Offset: 0x00153298
private void Triangulate(List <Dictionary <int, int> > contours, PrimitivesPro.Utils.Plane plane, List <Vector3>[] vertices, List <Vector3>[] normals, List <Vector2>[] uvs, List <int>[] triangles, bool uvCutMesh)
{
if (contours.Count == 0 || contours[0].Count < 3)
{
return;
}
Matrix4x4 planeMatrix = plane.GetPlaneMatrix();
Matrix4x4 inverse = planeMatrix.inverse;
float z = 0f;
List <Polygon> list = new List <Polygon>(contours.Count);
Polygon polygon = null;
foreach (Dictionary <int, int> dictionary in contours)
{
Vector2[] array = new Vector2[dictionary.Count];
int num = 0;
foreach (int index in dictionary.Values)
{
Vector4 v = inverse * vertices[0][index];
array[num++] = v;
z = v.z;
}
Polygon polygon2 = new Polygon(array);
list.Add(polygon2);
if (polygon == null || polygon.Area < polygon2.Area)
{
polygon = polygon2;
}
}
if (list.Count > 0)
{
List <Polygon> list2 = new List <Polygon>();
foreach (Polygon polygon3 in list)
{
if (polygon3 != polygon && polygon.IsPointInside(polygon3.Points[0]))
{
polygon.AddHole(polygon3);
list2.Add(polygon3);
}
}
foreach (Polygon item in list2)
{
list.Remove(item);
}
}
int num2 = vertices[0].Count;
int num3 = vertices[1].Count;
foreach (Polygon polygon4 in list)
{
List <int> list3 = polygon4.Triangulate();
float num4 = Mathf.Min(polygon4.Min.x, polygon4.Min.y);
float num5 = Mathf.Max(polygon4.Max.x, polygon4.Max.y);
float num6 = num4 - num5;
foreach (Vector2 vector in polygon4.Points)
{
Vector4 v2 = planeMatrix * new Vector3(vector.x, vector.y, z);
vertices[0].Add(v2);
vertices[1].Add(v2);
normals[0].Add(-plane.Normal);
normals[1].Add(plane.Normal);
if (uvCutMesh)
{
Vector2 item2 = new Vector2((vector.x - num4) / num6, (vector.y - num4) / num6);
Vector2 item3 = new Vector2((vector.x - num4) / num6, (vector.y - num4) / num6);
float num7 = this.crossSectionUV.z - this.crossSectionUV.x;
float num8 = this.crossSectionUV.w - this.crossSectionUV.y;
item2.x = this.crossSectionUV.x + item2.x * num7;
item2.y = this.crossSectionUV.y + item2.y * num8;
item3.x = this.crossSectionUV.x + item3.x * num7;
item3.y = this.crossSectionUV.y + item3.y * num8;
uvs[0].Add(item2);
uvs[1].Add(item3);
}
else
{
uvs[0].Add(Vector2.zero);
uvs[1].Add(Vector2.zero);
}
}
int count = list3.Count;
int num9 = count - 1;
for (int j = 0; j < count; j++)
{
triangles[0].Add(num2 + list3[j]);
triangles[1].Add(num3 + list3[num9]);
num9--;
}
num2 += polygon4.Points.Length;
num3 += polygon4.Points.Length;
}
}
