public void CalculateBevelOutline(List <Vector2> vertices, float strokeWidth, ref List <Vector3> verts, ref List <Vector2> uvs, ref List <int> tris)
{
int n = vertices.Count;
int initIndex = verts.Count;
int i = 0;
int vertNum = initIndex;
float pFactor = 0, nFactor = 0;
Vector2 pVer = vertices[n - 1];
Vector2 cVer = vertices[0];
Vector2 nVer = vertices[1];
float pDis = Vector2.Distance(pVer, cVer);
float nDis; // = Vector2.Distance(cVer, nVer);
// int sign = ForceEarCut.ComputeSpannedAreaSign(pVer, cVer, nVer);
Vector2 firstSkewPoint = pVer;
Debug.LogError(gameObject.name + " is going on to enter while ... ! ");
while (i < n + 1)
{
nDis = Vector2.Distance(cVer, nVer);
if (nDis < strokeWidth)
{
pDis = Vector2.Distance(pVer, nVer);
i++;
// cVer = nVer;
nVer = vertices[i % n];
continue;
}
pFactor = pDis / strokeWidth;
nFactor = nDis / strokeWidth;
Vector2 perPC = CGAlgorithm.Perp(pVer, cVer, strokeWidth);
Vector2 perCN = CGAlgorithm.Perp(cVer, nVer, strokeWidth);
int sign = ForceEarCut.ComputeSpannedAreaSign(pVer, cVer, nVer);
if (sign < 0)
{
// sign < 0 :
// p
// \
// \
// === c --> n ===
Vector2 skewPoint = cVer + perPC;
//CGAlgorithm.Intersect2D_2SkewSegments(pVer + perPC, cVer + perPC , cVer + perCN, nVer + perCN, ref skewPoint) ;
if (CGAlgorithm.Intersect2D_2SkewSegments(pVer + perPC, cVer + perPC, cVer + perCN, nVer + perCN, ref skewPoint))
{
if (vertNum > initIndex)
{
verts[vertNum - 1] = skewPoint;
}
verts.Add(pVer);
verts.Add(skewPoint);
verts.Add(cVer);
verts.Add(nVer + perCN);
uvs.Add(new Vector2(0, 0));
uvs.Add(new Vector2(1, pFactor));
uvs.Add(new Vector2(0, pFactor));
uvs.Add(new Vector2(1, pFactor + nFactor));
if (_facing == Facing.FACE_FORWARD)
{
tris.Add(vertNum);
tris.Add(vertNum + 2);
tris.Add(vertNum + 1);
tris.Add(vertNum + 2);
tris.Add(vertNum + 3);
tris.Add(vertNum + 1);
}
else if (_facing == Facing.FACE_BACK)
{
tris.Add(vertNum);
tris.Add(vertNum + 1);
tris.Add(vertNum + 2);
tris.Add(vertNum + 2);
tris.Add(vertNum + 1);
tris.Add(vertNum + 3);
}
vertNum += 4;
}
}
else
{
// or sign > 0 :
// p
// /
// /
// === n <-- c ===
//
// }else{
//---------------------------------------------------------------------------
verts.Add(pVer);
verts.Add(cVer + perPC);
verts.Add(cVer);
verts.Add(cVer + perCN);
verts.Add(nVer + perCN);
uvs.Add(new Vector2(0, 0));
uvs.Add(new Vector2(1, pFactor));
uvs.Add(new Vector2(0, pFactor));
uvs.Add(new Vector2(1, pFactor));
uvs.Add(new Vector2(1, pFactor + nFactor));
if (_facing == Facing.FACE_FORWARD)
{
tris.Add(vertNum);
tris.Add(vertNum + 2);
tris.Add(vertNum + 1);
tris.Add(vertNum + 2);
tris.Add(vertNum + 3);
tris.Add(vertNum + 1);
tris.Add(vertNum + 2);
tris.Add(vertNum + 4);
tris.Add(vertNum + 3);
}
else if (_facing == Facing.FACE_BACK)
{
tris.Add(vertNum);
tris.Add(vertNum + 1);
tris.Add(vertNum + 2);
tris.Add(vertNum + 2);
tris.Add(vertNum + 1);
tris.Add(vertNum + 3);
tris.Add(vertNum + 2);
tris.Add(vertNum + 3);
tris.Add(vertNum + 4);
}
vertNum += 5;
}
i++;
pVer = cVer;
cVer = nVer;
nVer = vertices[i % n];
pDis = nDis;
}
}
public void CalculateMeshData(List <Vector2> vertices, float strokeWidth, ref List <Vector3> verts, ref List <Vector2> uvs, ref List <int> tris)
{
int n = vertices.Count;
int initIndex = verts.Count;
int i = 0;
int vertNum = initIndex;
float pFactor = 0, nFactor = 0;
Vector2 pVer = vertices[n - 1];
Vector2 cVer = vertices[0];
Vector2 nVer = vertices[1];
float pDis = Vector2.Distance(pVer, cVer);
float nDis; // = Vector2.Distance(cVer, nVer);
// int sign = ForceEarCut.ComputeSpannedAreaSign(pVer, cVer, nVer);
Vector2 firstSkewPoint = pVer;
while (i < n + 1)
{
nDis = Vector2.Distance(cVer, nVer);
if (nDis < strokeWidth)
{
pDis = Vector2.Distance(pVer, nVer);
i++;
// cVer = nVer;
nVer = vertices[i % n];
continue;
}
pFactor = pDis / strokeWidth;
nFactor = nDis / strokeWidth;
Vector2 perPC = CGAlgorithm.Perp(pVer, cVer, strokeWidth);
Vector2 perCN = CGAlgorithm.Perp(cVer, nVer, strokeWidth);
Vector2 skewPoint = cVer + perPC;
//CGAlgorithm.Intersect2D_2SkewSegments(pVer + perPC, cVer + perPC , cVer + perCN, nVer + perCN, ref skewPoint) ;
Vector2 pcDir = (cVer - pVer).normalized * strokeWidth * 5;
Vector2 cnDir = (cVer - nVer).normalized * strokeWidth * 5;
if (CGAlgorithm.Intersect2D_2SkewSegments(
pVer + perPC, cVer + perPC + pcDir,
cVer + perCN + cnDir, nVer + perCN,
ref skewPoint))
{
if (vertNum == initIndex)
{
firstSkewPoint = skewPoint;
}
else
{
verts[vertNum - 1] = skewPoint;
}
verts.Add(pVer);
verts.Add(skewPoint);
verts.Add(cVer);
if (i == n)
{
verts.Add(firstSkewPoint);
}
else
{
verts.Add(nVer); //(nVer + perCN);
}
uvs.Add(new Vector2(0, 0));
uvs.Add(new Vector2(1, pFactor));
uvs.Add(new Vector2(0, pFactor));
uvs.Add(new Vector2(1, pFactor + nFactor));
if (_facing == Facing.FACE_FORWARD)
{
tris.Add(vertNum);
tris.Add(vertNum + 2);
tris.Add(vertNum + 1);
tris.Add(vertNum + 2);
tris.Add(vertNum + 3);
tris.Add(vertNum + 1);
}
else if (_facing == Facing.FACE_BACK)
{
tris.Add(vertNum);
tris.Add(vertNum + 1);
tris.Add(vertNum + 2);
tris.Add(vertNum + 2);
tris.Add(vertNum + 1);
tris.Add(vertNum + 3);
}
vertNum += 4;
}
else
{
Debug.LogError("Outline .... no intersect???");
}
i++;
pVer = cVer;
cVer = nVer;
nVer = vertices[i % n];
pDis = nDis;
}
}