Path PathFromVerts(Vector3 v1, Vector3 v2, Vector3 v3, Plane plane, float precision)
{
Path p = new Path(3);
v1 = ProjectionMath.TwoDimCoordsOnPlane(v1, plane);
v2 = ProjectionMath.TwoDimCoordsOnPlane(v2, plane);
v3 = ProjectionMath.TwoDimCoordsOnPlane(v3, plane);
p.Add(IntPointFromVector(v1, precision));
p.Add(IntPointFromVector(v2, precision));
p.Add(IntPointFromVector(v3, precision));
return(p);
}
private IntVector2D MouseLocOnPlane(DPlane plane)
{
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
float rayDistance;
if (plane.MathPlane.Raycast(ray, out rayDistance))
{
Vector3 planePos = ray.GetPoint(rayDistance);
Vector2 planePos2D = ProjectionMath.TwoDimCoordsOnPlane(planePos, plane);
IntVector2D tileLoc = new IntVector2D(planePos2D / _tileSize - Vector2.one * _tileSize / 2f);
if (plane.Orientation == PlaneOrientation.XY)
{
tileLoc.x *= -1;
tileLoc.x -= 1;
}
return(tileLoc);
}
return(new IntVector2D(-1, -1));
}
void drawCollider()
{
float precision = 10000f;
int[] triangles = _mesh.triangles;
int triangleCount = triangles.Length;
Vector3[] vertices = _mesh.vertices;
int vertexCount = vertices.Length;
for (int planeIndex = 0; planeIndex < _planes.Length; planeIndex++)
{
Paths subj = new Paths(triangleCount / 3); // One subject path per tri
Vector3[] projectedVertices3d = new Vector3[vertexCount];
Plane plane = _planes[planeIndex];
for (int unprojectedVertIndex = 0; unprojectedVertIndex < vertexCount; unprojectedVertIndex++)
{
Vector3 projected3d = ProjectVertIndexToPlane(unprojectedVertIndex, plane);
projectedVertices3d[unprojectedVertIndex] = projected3d;
}
for (int i = 0; i < triangleCount / 3; i++)
{
Vector2 v1 = ProjectionMath.TwoDimCoordsOnPlane(projectedVertices3d[triangles[i * 3]], plane);
Vector2 v2 = ProjectionMath.TwoDimCoordsOnPlane(projectedVertices3d[triangles[i * 3 + 1]], plane);
Vector2 v3 = ProjectionMath.TwoDimCoordsOnPlane(projectedVertices3d[triangles[i * 3 + 2]], plane);
if (Vector3.Dot(Vector3.Cross((Vector3)(v1 - v2), (Vector3)(v1 - v3)), plane.Normal) > 0f)
{
Vector2 temp = v2;
v2 = v3;
v3 = temp;
}
Path p = new Path(4);
p.Add(IntPointFromVector(v1, precision));
p.Add(IntPointFromVector(v2, precision));
p.Add(IntPointFromVector(v3, precision));
p.Add(IntPointFromVector(v1, precision));
subj.Add(p);
}
float width = 50f;
float height = 30f;
Paths clip = new Paths(1);
clip.Add(new Path(4));
Vector2 c1 = ProjectionMath.TwoDimCoordsOnPlane(plane.Origin + plane.Up * height / 2f - plane.Right * width / 2f, plane);
Vector2 c2 = ProjectionMath.TwoDimCoordsOnPlane(plane.Origin + plane.Up * height / 2f + plane.Right * width / 2f, plane);
Vector2 c3 = ProjectionMath.TwoDimCoordsOnPlane(plane.Origin - plane.Up * height / 2f + plane.Right * width / 2f, plane);
Vector2 c4 = ProjectionMath.TwoDimCoordsOnPlane(plane.Origin - plane.Up * height / 2f - plane.Right * width / 2f, plane);
IntPoint cip1 = IntPointFromVector(c1, precision);
IntPoint cip2 = IntPointFromVector(c2, precision);
IntPoint cip3 = IntPointFromVector(c3, precision);
IntPoint cip4 = IntPointFromVector(c4, precision);
clip[0].Add(cip1);
clip[0].Add(cip2);
clip[0].Add(cip3);
clip[0].Add(cip4);
Debug.DrawLine(Vector3FromIntPoint(cip1, plane, precision), Vector3FromIntPoint(cip2, plane, precision), Color.blue);
Debug.DrawLine(Vector3FromIntPoint(cip2, plane, precision), Vector3FromIntPoint(cip3, plane, precision), Color.blue);
Debug.DrawLine(Vector3FromIntPoint(cip3, plane, precision), Vector3FromIntPoint(cip4, plane, precision), Color.blue);
Debug.DrawLine(Vector3FromIntPoint(cip4, plane, precision), Vector3FromIntPoint(cip1, plane, precision), Color.blue);
Paths solution = new Paths();
_clipper.Clear();
_clipper.AddPaths(subj, PolyType.ptSubject, true);
_clipper.AddPaths(clip, PolyType.ptClip, true);
_clipper.Execute(ClipType.ctIntersection, solution,
subjFillType: PolyFillType.pftNonZero,
clipFillType: PolyFillType.pftNonZero);
solution = Clipper.SimplifyPolygons(solution, PolyFillType.pftNonZero);
//pftEvenOdd, pftNonZero, pftPositive, pftNegative
List <Vector3> concaveHullVerts = new List <Vector3>();
for (int i = 0; i < solution.Count; i++)
{
for (int j = 0; j < solution[i].Count; j++)
{
concaveHullVerts.Add(Vector3FromIntPoint(solution[i][j], plane, precision));
}
concaveHullVerts.Add(concaveHullVerts[concaveHullVerts.Count - solution[i].Count]);
}
// concaveHullVerts.Add(Vector3FromIntPoint(solution[0][0], plane, precision));
List <Vector2> triangulatorVerts = new List <Vector2>();
int concaveHullVertsIndex;
_colliderTransforms[planeIndex].rotation = Quaternion.identity;
_colliderTransforms[planeIndex].position = Vector3.zero;
for (concaveHullVertsIndex = 0; concaveHullVertsIndex < concaveHullVerts.Count; concaveHullVertsIndex++)
{
Vector2 pt = ProjectionMath.TwoDimCoordsOnPlane(concaveHullVerts[concaveHullVertsIndex], plane);
// pt -= TwoDimCoordsOnPlane(_colliderTransforms[planeIndex].position, plane);
pt.x *= -1f;
_colliderPoints[planeIndex][concaveHullVertsIndex] = pt;
triangulatorVerts.Add(pt);
}
for (concaveHullVertsIndex = concaveHullVerts.Count; concaveHullVertsIndex < _pointsPerCollider; concaveHullVertsIndex++)
{
_colliderPoints[planeIndex][concaveHullVertsIndex] = _colliderPoints[planeIndex][0];
triangulatorVerts.Add(_colliderPoints[planeIndex][0]);
}
_colliders[planeIndex].points = _colliderPoints[planeIndex];
//_shadowRenderers[planeIndex].SetVerts(triangulatorVerts, plane);
for (int i = 0; i < triangleCount; i += 3)
{
Vector3 vert1 = projectedVertices3d[triangles[i]];
Vector3 vert2 = projectedVertices3d[triangles[i + 1]];
Vector3 vert3 = projectedVertices3d[triangles[i + 2]];
Debug.DrawLine(vert1, vert2);
Debug.DrawLine(vert2, vert3);
Debug.DrawLine(vert3, vert1);
}
for (int i = 1; i < concaveHullVerts.Count; i++)
{
Debug.DrawLine(concaveHullVerts[i - 1], concaveHullVerts[i], Color.red);
}
}
}