public void AddTriangle(SkeletonTri newTriangle)
{
OffsetShapeLog.AddLine("Add Triangle: " + newTriangle[0].id + " " + newTriangle[1].id + " " + newTriangle[2].id);
newTriangle.id = _triIndex;
_triIndex++;
_tris.Add(newTriangle);
}
public void Clean(SkeletonData data)
{
int triCount = _tris.Count;
for (int t = 0; t < triCount; t++)
{
SkeletonTri tri = _tris[t];
bool remove = false;
if (!data.isStaticNode(tri[0]))
{
remove = true;
}
if (!data.isStaticNode(tri[1]))
{
remove = true;
}
if (!data.isStaticNode(tri[2]))
{
remove = true;
}
if (remove)
{
_tris.RemoveAt(t);
triCount--;
t--;
}
}
}
private void CalculateUVs(SkeletonTri tri)
{
int baseIndex = FindBaseIndex(tri);
OffsetShapeLog.DrawLine(tri.centre, tri.positions[baseIndex], Color.red);
Vector2 baseUV = Vector2.zero;
OffsetShapeLog.AddLine("============");
OffsetShapeLog.AddLine("triangle uv node find! ", tri.id, " base node id ", tri[baseIndex].id, " tangent ", tri.tangentV3);
OffsetShapeLog.AddLine("============");
foreach (UVNode uvnode in _uvnodes)
{
OffsetShapeLog.AddLine("uvnode! ", uvnode.node.id, uvnode.tangent);
if (uvnode.node != tri[baseIndex])
{
continue;
}
if (!uvnode.TangentCheck(tri.tangentV3))
{
continue;
}
baseUV = uvnode.uv;
}
OffsetShapeLog.AddLine("!!!!!!!!!!!!");
OffsetShapeLog.DrawLabel(tri.centre, baseUV.ToString());
int indexB = (baseIndex + 1) % 3;
int indexC = (baseIndex + 2) % 3;
Vector3 p0 = tri.positions[baseIndex];
Vector3 p1 = tri.positions[indexB];
Vector3 p2 = tri.positions[indexC];
Vector3 vA = p1 - p0;
Vector3 vB = p2 - p0;
Vector3 right = tri.tangentV3;
Vector3 up = Vector3.Cross(right, tri.normal);
Vector3 upVA = Vector3.Project(vA, up);
Vector3 rightVA = Vector3.Project(vA, right);
Vector3 upVB = Vector3.Project(vB, up);
Vector3 rightVB = Vector3.Project(vB, right);
float apexUVAX = rightVA.magnitude * Mathf.Sign(Vector3.Dot(right, rightVA));
float apexUVAY = upVA.magnitude * Mathf.Sign(Vector3.Dot(up, upVA));
Vector2 apexUVA = baseUV + new Vector2(apexUVAX, apexUVAY);
float apexUVBX = rightVB.magnitude * Mathf.Sign(Vector3.Dot(right, rightVB));
float apexUVBY = upVB.magnitude * Mathf.Sign(Vector3.Dot(up, upVB));
Vector2 apexUVB = baseUV + new Vector2(apexUVBX, apexUVBY);
_uvnodes.Add(new UVNode(tri[indexB], apexUVA, right));
_uvnodes.Add(new UVNode(tri[indexC], apexUVB, right));
Vector2[] uvs = new Vector2[3];
uvs[baseIndex] = baseUV;
uvs[indexB] = apexUVA;
uvs[indexC] = apexUVB;
tri.uvs = uvs;
}
public SkeletonTri[] Convert()
{
SkeletonTri[] output;
if (size == 3)
{
output = new[] { new SkeletonTri(_nodes[0], _nodes[1], _nodes[2], _tangent) };
}
else
{
output = new SkeletonTri[2];
output[0] = new SkeletonTri(_nodes[0], _nodes[1], _nodes[2], _tangent);
output[1] = new SkeletonTri(_nodes[2], _nodes[3], _nodes[1], _tangent);
}
return(output);
}
private int FindBaseIndex(SkeletonTri tri)
{
System.Collections.Generic.List <int> startNodeIndices = new System.Collections.Generic.List <int>();
for (int i = 0; i < 3; i++)
{
if (tri[i].startNode)
{
startNodeIndices.Add(i);
}
}
int startNodeCount = startNodeIndices.Count;
if (startNodeCount == 1)
{
return(startNodeIndices[0]);
}
if (startNodeCount > 1)
{
float lowestDot = 1;
int output = 0;
for (int i = 0; i < startNodeCount; i++)
{
Vector3 dir = (tri.positions[startNodeIndices[i]] - tri.centre).normalized;
float dot = Vector3.Dot(dir, tri.tangentV3);
if (dot < lowestDot)
{
lowestDot = dot;
output = startNodeIndices[i];
}
}
return(output);
}
float lowestY = Mathf.Infinity;
int lowestIndex = 0;
for (int i = 0; i < 3; i++)
{
if (tri.positions[i].y < lowestY)
{
lowestY = tri.positions[i].y;
lowestIndex = i;
}
}
return(lowestIndex);
}
public SkeletonTri RetireNode(Node node)
{
if (!_nodes.Contains(node))
{
return(null);
}
SkeletonTri output = new SkeletonTri(_nodes[0], _nodes[1], node, _tangent);
if (_nodes[2] == node)
{
_nodes.Remove(_nodes[0]);
return(output);
}
if (_nodes[3] == node)
{
_nodes.Remove(_nodes[1]);
return(output);
}
return(null);
}
public void Build(SkeletonData data)
{
System.Collections.Generic.List <SkeletonTri> allTris = new System.Collections.Generic.List <SkeletonTri>(data.mesh.GetTriangles());
System.Collections.Generic.List <SkeletonTri> startTris = new System.Collections.Generic.List <SkeletonTri>();
int triCount = allTris.Count;
for (int t = 0; t < triCount; t++)
{
SkeletonTri tri = allTris[t];
if (tri.hasStartEdge)
{
allTris.RemoveAt(t);
triCount--;
t--;
startTris.Add(tri);
}
}
while (startTris.Count > 0)
{
SkeletonTri tri = startTris[0];
startTris.RemoveAt(0);
CalculateUVs(tri);
}
while (allTris.Count > 0)
{
SkeletonTri tri = allTris[0];
allTris.RemoveAt(0);
CalculateUVs(tri);
}
foreach (UVNode uvnode in _uvnodes)
{
OffsetShapeLog.DrawLabel(uvnode.node.position, "\n\n" + uvnode.uv);
}
}
public void SplitEdge(SplitEvent e)
{
Edge oldLiveEdge = e.edge;
Vector3 splitTangent = Utils.ToV3(oldLiveEdge.direction);
SkeletonFace oldFace = _nodeDic[oldLiveEdge];
Node staticNode = e.newStaticNode;
Edge newLiveEdgeA = e.newLiveEdgeA;
Edge newLiveEdgeB = e.newLiveEdgeB;
Node oldNode = e.node;
Node newLiveNodeA = e.newLiveNodeA;
Node newLiveNodeB = e.newLiveNodeB;
//centre tri
SkeletonTri newTriangle = new SkeletonTri(oldFace[0], oldFace[1], staticNode, splitTangent);
AddTriangle(newTriangle);
if (!_nodeDic.ContainsKey(e.nodeEdgeA))
{
return;
}
SkeletonFace faceA = _nodeDic[e.nodeEdgeA];
faceA.ReplaceNode(oldNode, newLiveNodeA);
//left tri
SkeletonTri newTriangleA = new SkeletonTri(staticNode, faceA[0], newLiveNodeA, splitTangent);
AddTriangle(newTriangleA);
if (!_nodeDic.ContainsKey(e.nodeEdgeB))
{
return;
}
SkeletonFace faceB = _nodeDic[e.nodeEdgeB];
faceB.ReplaceNode(oldNode, newLiveNodeB);
//right tri
SkeletonTri newTriangleB = new SkeletonTri(faceB[1], staticNode, newLiveNodeB, splitTangent);
AddTriangle(newTriangleB);
RemoveFace(oldFace);
AddFace(newLiveEdgeA, oldFace[0], staticNode);
AddFace(newLiveEdgeB, staticNode, oldFace[1]);
int oldNodeReferenceCount = 0;
if (_edgeDic.ContainsKey(oldNode))
{
oldNodeReferenceCount = _edgeDic[oldNode].Count;
}
for (int r = 0; r < oldNodeReferenceCount; r++)
{
SkeletonFace face = _edgeDic[oldNode][r];
Edge liveEdge = face.liveEdge;
if (liveEdge.Contains(newLiveNodeA))
{
if (!_edgeDic.ContainsKey(newLiveNodeA))
{
_edgeDic.Add(newLiveNodeA, new List <SkeletonFace>());
}
_edgeDic[newLiveNodeA].Add(face);
}
if (liveEdge.Contains(newLiveNodeB))
{
if (!_edgeDic.ContainsKey(newLiveNodeB))
{
_edgeDic.Add(newLiveNodeB, new List <SkeletonFace>());
}
_edgeDic[newLiveNodeB].Add(face);
}
}
}
public void CollapseEdge(Edge liveEdge, Node newLiveNode, Node newStaticNode)
{
Edge edgeA = null, edgeB = null;
if (!_edgeDic.ContainsKey(newLiveNode))
{
_edgeDic.Add(newLiveNode, new List <SkeletonFace>());
}
foreach (SkeletonFace face in _faces)
{
Edge liveFaceEdge = face.liveEdge;
if (liveEdge == liveFaceEdge)
{
continue;
}
if (liveFaceEdge.Contains(liveEdge.nodeA))
{
edgeA = liveFaceEdge;
_edgeDic[newLiveNode].Add(face);
}
if (liveFaceEdge.Contains(liveEdge.nodeB))
{
edgeB = liveFaceEdge;
_edgeDic[newLiveNode].Add(face);
}
}
if (edgeA != null)
{
SkeletonFace faceA = _nodeDic[edgeA];
Node n0 = faceA[0];
Node n1 = faceA[1];
Node n2 = newStaticNode;
if (n0 != n2 && n1 != n2)
{
SkeletonTri newtriangle = new SkeletonTri(n0, n1, n2, faceA.tangent);
AddTriangle(newtriangle);//remove static triangle from face - add to triangle stack
faceA.ReplaceNode(faceA[1], newStaticNode);
faceA.ReplaceNode(faceA[3], newLiveNode);
}
}
if (edgeB != null)
{
SkeletonFace faceB = _nodeDic[edgeB];
Node n0 = faceB[0];
Node n1 = faceB[1];
Node n2 = newStaticNode;
if (n0 != n2 && n1 != n2)
{
SkeletonTri newtriangle = new SkeletonTri(n0, n1, n2, faceB.tangent);
AddTriangle(newtriangle);
faceB.ReplaceNode(faceB[0], newStaticNode);
faceB.ReplaceNode(faceB[2], newLiveNode);
}
}
if (_nodeDic.ContainsKey(liveEdge))
{
SkeletonFace liveFace = _nodeDic[liveEdge];
Node lfn0 = liveFace[0];
Node lfn1 = liveFace[1];
Node lfn2 = newStaticNode;
if (lfn0 != lfn2 && lfn1 != lfn2)
{
SkeletonTri newFaceTriangle = new SkeletonTri(lfn0, lfn1, lfn2, liveFace.tangent);
AddTriangle(newFaceTriangle);
}
_nodeDic.Remove(liveEdge);
RemoveFace(liveFace);
}
}
public void AddTriangle(Node a, Node b, Node c, Vector3 tangent)
{
SkeletonTri newTriangle = new SkeletonTri(a, b, c, tangent);
AddTriangle(newTriangle);
}