void OnDrawGizmos()
{
Gizmos.color = Color.red;
if (drawing)
{
List <Vector3> allIntercepts = new List <Vector3>();
//TODO: Much should be in cutter in future
cutter.RecalculateMeshlike();
Vector3[] l = line.Line.ToArray();
Vector3 normal = Vector3.Cross(l[1] - l[0], l[2] - l[0]).normalized;
int[] outTriangle = new int[3] {
0, 1, 2
};
Dictionary <int, List <Vector3> > cuts = cutter.GetCuts(l, outTriangle, 0, normal);
foreach (List <Vector3> cutz in cuts.Values)
{
allIntercepts.AddRange(cutz);
}
foreach (Vector3 intercept in allIntercepts)
{
Gizmos.DrawSphere(intercept, gizmoSize);
}
subPaths = cutter.GetSubPaths(l, outTriangle, 0, normal, cuts, allIntercepts);
//Debug.Log(subPaths.Count() + " paths");
Gizmos.color = Color.red;
for (int subP = 0; subP < subPaths.Count(); subP++)
{
List <int> tris = ProcGenHelpers.PolyToTriangles(subPaths[subP], normal, 0);
//Debug.Log(tris.Count() + " triangle points");
for (int idT = 0, lT = tris.Count(); idT < lT; idT += 3)
{
Gizmos.DrawLine(subPaths[subP][tris[idT]], subPaths[subP][tris[idT + 1]]);
Gizmos.DrawLine(subPaths[subP][tris[idT + 1]], subPaths[subP][tris[idT + 2]]);
Gizmos.DrawLine(subPaths[subP][tris[idT + 2]], subPaths[subP][tris[idT]]);
Vector3 center = (subPaths[subP][tris[idT]] + subPaths[subP][tris[idT + 1]] + subPaths[subP][tris[idT + 2]]) / 3;
Gizmos.DrawWireCube(center, gizmoSize * Vector3.one);
Gizmos.DrawLine(center, center + Vector3.Cross(subPaths[subP][tris[idT + 1]] - subPaths[subP][tris[idT]], subPaths[subP][tris[idT + 2]] - subPaths[subP][tris[idT]]));
}
}
}
}
public void CutDough(Mesh dough, MeshFilter mFilt)
{
Debug.Log("Cutting " + mFilt.gameObject);
Transform doughTransform = mFilt.transform;
List <Vector3> allIntercepts = new List <Vector3>();
Vector3[] verts = dough.vertices.Select(v => doughTransform.TransformPoint(v)).ToArray();
int[] tris = dough.triangles;
Vector2[] uvs = dough.uv;
List <Vector3> newVerts = new List <Vector3>();
List <Vector2> newUVs = new List <Vector2>();
List <int> newTris = new List <int>();
for (int triStart = 0, nTris = tris.Length; triStart < nTris; triStart += 3)
{
Vector3[] triCorners = new Vector3[3] {
verts[tris[triStart]], verts[tris[triStart + 1]], verts[tris[triStart + 2]]
};
if (triCorners.All(v => PointInMesh(v)))
{
Debug.Log(string.Format("Remove tri {0} {1} {2} because entirely inside cutter", tris[triStart], tris[triStart + 1], tris[triStart + 2]));
continue;
}
Vector2[] triUVs = new Vector2[3] {
uvs[tris[triStart]], uvs[tris[triStart + 1]], uvs[tris[triStart + 2]]
};
Vector3 normal = Vector3.Cross(triCorners[1] - triCorners[0], triCorners[2] - triCorners[0]).normalized;
Debug.Log(string.Format("Tri {0} {1} {2}, Normal {3}", triCorners[0], triCorners[1], triCorners[2], normal));
int[] outTriangle = new int[3] {
0, 1, 2
};
Dictionary <int, List <Vector3> > cuts = GetCuts(triCorners, outTriangle, 0, normal);
foreach (List <Vector3> cutz in cuts.Values)
{
allIntercepts.AddRange(cutz);
}
//TODO: add stuff here to fix entirely inside
if (allIntercepts.Count() > 0)
{
List <List <Vector3> > subPaths = GetSubPaths(triCorners, outTriangle, 0, normal, cuts, allIntercepts);
for (int subP = 0; subP < subPaths.Count(); subP++)
{
Debug.Log(string.Format("Creating tris on {0} for poly {1} (length {3}) of original tri {2} +1 +2", mFilt.gameObject, subP, triStart, subPaths[subP].Count()));
newTris.AddRange(ProcGenHelpers.PolyToTriangles(subPaths[subP], normal, newVerts.Count()));
newVerts.AddRange(subPaths[subP]);
newUVs.AddRange(ProcGenHelpers.GetProjectedUVs(triCorners, triUVs, subPaths[subP]));
}
}
else
{
//Triangle outside cutter entirely
int nVerts = newVerts.Count();
newVerts.AddRange(triCorners);
newUVs.AddRange(triUVs);
for (int i = 0; i < 3; i++)
{
newTris.Add(nVerts + i);
}
}
}
Mesh cutDough = new Mesh();
cutDough.name = dough.name + ".CCut";
cutDough.Clear();
cutDough.SetVertices(newVerts.Select(v => doughTransform.InverseTransformPoint(v)).ToList());
cutDough.SetUVs(0, newUVs);
cutDough.SetTriangles(newTris, 0);
cutDough.RecalculateBounds();
cutDough.RecalculateNormals();
mFilt.sharedMesh = cutDough;
MeshCollider mCol = mFilt.GetComponent <MeshCollider>();
if (mCol && mCol.sharedMesh == dough)
{
mCol.sharedMesh = cutDough;
}
}