static void CreateBoneJointIfNeed(
InsideEdgeLine insideEdge,
GlyphTriangle first_p_tri,
GlyphBoneJoint firstJoint,
List <GlyphBone> newlyCreatedBones,
List <GlyphBone> glyphBones)
{
if (insideEdge != null &&
insideEdge.inside_joint == null)
{
InsideEdgeLine mainEdge = insideEdge;
EdgeLine nbEdge = null;
if (FindSameCoordEdgeLine(first_p_tri.N0, mainEdge, out nbEdge) ||
FindSameCoordEdgeLine(first_p_tri.N1, mainEdge, out nbEdge) ||
FindSameCoordEdgeLine(first_p_tri.N2, mainEdge, out nbEdge))
{
//confirm that nbEdge is INSIDE edge
if (nbEdge.IsInside)
{
GlyphBoneJoint joint = new GlyphBoneJoint((InsideEdgeLine)nbEdge, mainEdge);
GlyphBone bone = new GlyphBone(mainEdge.inside_joint, firstJoint);
newlyCreatedBones.Add(bone);
glyphBones.Add(bone);
}
else
{
//?
}
}
else
{
//?
}
}
}
static bool FindCommonInsideEdges(GlyphTriangle a, GlyphTriangle b, out InsideEdgeLine a_edge, out InsideEdgeLine b_edge)
{
//2 contact triangles share GlyphBoneJoint.
EdgeLine find_b_edge = b.e0;
InsideEdgeLine matching_inside_edge_of_a = null;
if ((matching_inside_edge_of_a = FindCommonInsideEdge(a, find_b_edge)) != null)
{
//found
a_edge = matching_inside_edge_of_a;
b_edge = (InsideEdgeLine)find_b_edge;
return(true);
}
//--------------
find_b_edge = b.e1;
if ((matching_inside_edge_of_a = FindCommonInsideEdge(a, find_b_edge)) != null)
{
//found
a_edge = matching_inside_edge_of_a;
b_edge = (InsideEdgeLine)find_b_edge;
return(true);
}
find_b_edge = b.e2;
if ((matching_inside_edge_of_a = FindCommonInsideEdge(a, find_b_edge)) != null)
{
//found
a_edge = matching_inside_edge_of_a;
b_edge = (InsideEdgeLine)find_b_edge;
return(true);
}
a_edge = b_edge = null;
return(false);
}
static void CreateTipBoneIfNeed(
InsideEdgeLine insideEdge, GlyphBoneJoint joint,
List <GlyphBone> newlyCreatedBones, List <GlyphBone> glyphBones)
{
if (insideEdge != null &&
insideEdge.inside_joint != null &&
insideEdge.inside_joint != joint)
{
//create connection
GlyphBone tipBone = new GlyphBone(insideEdge.inside_joint, joint);
newlyCreatedBones.Add(tipBone);
glyphBones.Add(tipBone);
}
}
internal GlyphBoneJoint(
InsideEdgeLine p_contact_edge,
InsideEdgeLine q_contact_edge)
{
//both p and q is INSIDE, contact edge
this._p_contact_edge = p_contact_edge;
this._q_contact_edge = q_contact_edge;
//this is original x,y
Vector2 midpos = p_contact_edge.GetMidPoint();
this._fitX = midpos.X;
this._fitY = midpos.Y;
#if DEBUG
if (p_contact_edge.inside_joint != null ||
q_contact_edge.inside_joint != null)
{
throw new System.NotSupportedException();
}
#endif
p_contact_edge.inside_joint = this;
q_contact_edge.inside_joint = this;
}