public static void buttCapEnd(this uiList <Vector3> dst, uiPathPoint p,
float dx, float dy, float w, float d)
{
float px = p.x + dx * d;
float py = p.y + dy * d;
float dlx = dy;
float dly = -dx;
dst.Add(new Vector2(px + dlx * w, py + dly * w));
dst.Add(new Vector2(px - dlx * w, py - dly * w));
}
public static void buttCapEnd(this uiList <Vector3> dst, uiList <Vector2> uv, uiPathPoint p,
float dx, float dy, float w, float d, float aa, float u0, float u1)
{
float px = p.x + dx * d;
float py = p.y + dy * d;
float dlx = dy;
float dly = -dx;
dst.Add(new Vector2(px + dlx * w, py + dly * w));
dst.Add(new Vector2(px - dlx * w, py - dly * w));
dst.Add(new Vector2(px + dlx * w + dx * aa, py + dly * w + dy * aa));
dst.Add(new Vector2(px - dlx * w + dx * aa, py - dly * w + dy * aa));
uv.Add(new Vector2(u0, 1));
uv.Add(new Vector2(u1, 1));
uv.Add(new Vector2(u0, 0));
uv.Add(new Vector2(u1, 0));
}
public static void roundCapEnd(this uiList <Vector3> dst, uiPathPoint p,
float dx, float dy, float w, int ncap)
{
float px = p.x;
float py = p.y;
float dlx = dy;
float dly = -dx;
dst.Add(new Vector2(px + dlx * w, py + dly * w));
dst.Add(new Vector2(px - dlx * w, py - dly * w));
for (var i = 0; i < ncap; i++)
{
float a = (float)i / (ncap - 1) * Mathf.PI;
float ax = Mathf.Cos(a) * w, ay = Mathf.Sin(a) * w;
dst.Add(new Vector2(px, py));
dst.Add(new Vector2(px - dlx * ax + dx * ay, py - dly * ax + dy * ay));
}
}
uiVertexUV _expandFill(float fringe)
{
float aa = fringe;
float woff = aa * 0.5f;
var points = this._points;
var paths = this._paths;
this._calculateJoins(fringe, StrokeJoin.miter, 4.0f);
var cvertices = 0;
for (var i = 0; i < paths.Count; i++)
{
var path = paths[i];
if (path.count <= 2)
{
continue;
}
cvertices += path.count;
}
this._fillConvex = false;
for (var i = 0; i < paths.Count; i++)
{
var path = paths[i];
if (path.count <= 2)
{
continue;
}
if (this._fillConvex)
{
// if more than two paths, convex is false.
this._fillConvex = false;
break;
}
if (!path.convex)
{
// if not convex, convex is false.
break;
}
this._fillConvex = true;
}
var _vertices = ObjectPool <uiList <Vector3> > .alloc();
_vertices.SetCapacity(cvertices);
var _uv = ObjectPool <uiList <Vector2> > .alloc();
_uv.SetCapacity(cvertices);
for (var i = 0; i < paths.Count; i++)
{
var path = paths[i];
if (path.count <= 2)
{
continue;
}
path.ifill = _vertices.Count;
for (var j = 0; j < path.count; j++)
{
var p = points[path.first + j];
if (aa > 0.0f)
{
_vertices.Add(new Vector2(p.x + p.dmx * woff, p.y + p.dmy * woff));
}
else
{
_vertices.Add(new Vector2(p.x, p.y));
}
_uv.Add(new Vector2(0.5f, 1.0f));
}
path.nfill = _vertices.Count - path.ifill;
paths[i] = path;
}
uiList <Vector3> _strokeVertices = null;
uiList <Vector2> _strokeUV = null;
if (aa > 0.0f)
{
_strokeVertices = ObjectPool <uiList <Vector3> > .alloc();
_strokeUV = ObjectPool <uiList <Vector2> > .alloc();
cvertices = 0;
for (var i = 0; i < paths.Count; i++)
{
var path = paths[i];
if (path.count <= 2)
{
continue;
}
cvertices += path.count * 2;
}
_strokeVertices.SetCapacity(cvertices);
_strokeUV.SetCapacity(cvertices);
float lw = this._fillConvex ? woff : aa + woff;
float rw = aa - woff;
float lu = this._fillConvex ? 0.5f : 0.0f;
float ru = 1.0f;
for (var i = 0; i < paths.Count; i++)
{
var path = paths[i];
if (path.count <= 2)
{
continue;
}
path.istroke = _strokeVertices.Count;
for (var j = 0; j < path.count; j++)
{
var p = points[path.first + j];
_strokeVertices.Add(new Vector2(p.x + p.dmx * lw, p.y + p.dmy * lw));
_strokeUV.Add(new Vector2(lu, 1.0f));
_strokeVertices.Add(new Vector2(p.x - p.dmx * rw, p.y - p.dmy * rw));
_strokeUV.Add(new Vector2(ru, 1.0f));
}
path.nstroke = _strokeVertices.Count - path.istroke;
paths[i] = path;
}
}
return(new uiVertexUV {
fillVertices = _vertices,
fillUV = _uv,
strokeVertices = _strokeVertices,
strokeUV = _strokeUV,
});
}
public static void bevelJoin(this uiList <Vector3> dst, uiList <Vector2> uv, uiPathPoint p0, uiPathPoint p1,
float lw, float rw, float lu, float ru, float fringe)
{
float rx0, ry0, rx1, ry1;
float lx0, ly0, lx1, ly1;
float dlx0 = p0.dy;
float dly0 = -p0.dx;
float dlx1 = p1.dy;
float dly1 = -p1.dx;
if ((p1.flags & uiPointFlags.left) != 0)
{
chooseBevel((p1.flags & uiPointFlags.innerBevel) != 0, p0, p1, lw,
out lx0, out ly0, out lx1, out ly1);
dst.Add(new Vector2 {
x = lx0, y = ly0
});
dst.Add(new Vector2 {
x = p1.x - dlx0 * rw, y = p1.y - dly0 * rw
});
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(ru, 1));
if ((p1.flags & uiPointFlags.bevel) != 0)
{
dst.Add(new Vector2(lx0, ly0));
dst.Add(new Vector2(p1.x - dlx0 * rw, p1.y - dly0 * rw));
dst.Add(new Vector2(lx1, ly1));
dst.Add(new Vector2(p1.x - dlx1 * rw, p1.y - dly1 * rw));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(ru, 1));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(ru, 1));
}
else
{
rx0 = p1.x - p1.dmx * rw;
ry0 = p1.y - p1.dmy * rw;
dst.Add(new Vector2(p1.x, p1.y));
dst.Add(new Vector2(p1.x - dlx0 * rw, p1.y - dly0 * rw));
dst.Add(new Vector2(rx0, ry0));
dst.Add(new Vector2(rx0, ry0));
dst.Add(new Vector2(p1.x, p1.y));
dst.Add(new Vector2(p1.x - dlx1 * rw, p1.y - dly1 * rw));
uv.Add(new Vector2(0.5f, 1));
uv.Add(new Vector2(ru, 1));
uv.Add(new Vector2(ru, 1));
uv.Add(new Vector2(ru, 1));
uv.Add(new Vector2(0.5f, 1));
uv.Add(new Vector2(ru, 1));
}
dst.Add(new Vector2(lx1, ly1));
dst.Add(new Vector2(p1.x - dlx1 * rw, p1.y - dly1 * rw));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(ru, 1));
}
else
{
chooseBevel((p1.flags & uiPointFlags.innerBevel) != 0, p0, p1, -rw,
out rx0, out ry0, out rx1, out ry1);
dst.Add(new Vector2(p1.x + dlx0 * lw, p1.y + dly0 * lw));
dst.Add(new Vector2(rx0, ry0));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(ru, 1));
if ((p1.flags & uiPointFlags.bevel) != 0)
{
dst.Add(new Vector2(p1.x + dlx0 * lw, p1.y + dly0 * lw));
dst.Add(new Vector2(rx0, ry0));
dst.Add(new Vector2(p1.x + dlx1 * lw, p1.y + dly1 * lw));
dst.Add(new Vector2(rx1, ry1));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(ru, 1));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(ru, 1));
}
else
{
lx0 = p1.x + p1.dmx * lw;
ly0 = p1.y + p1.dmy * lw;
dst.Add(new Vector2(p1.x + dlx0 * lw, p1.y + dly0 * lw));
dst.Add(new Vector2(p1.x, p1.y));
dst.Add(new Vector2(lx0, ly0));
dst.Add(new Vector2(lx0, ly0));
dst.Add(new Vector2(p1.x + dlx1 * lw, p1.y + dly1 * lw));
dst.Add(new Vector2(p1.x, p1.y));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(0.5f, 1));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(0.5f, 1));
}
dst.Add(new Vector2(p1.x + dlx1 * lw, p1.y + dly1 * lw));
dst.Add(new Vector2(rx1, ry1));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(ru, 1));
}
}
public static void roundJoin(this uiList <Vector3> dst, uiList <Vector2> uv, uiPathPoint p0, uiPathPoint p1,
float lw, float rw, int ncap, float lu, float ru, float fringe)
{
float dlx0 = p0.dy;
float dly0 = -p0.dx;
float dlx1 = p1.dy;
float dly1 = -p1.dx;
if ((p1.flags & uiPointFlags.left) != 0)
{
float lx0, ly0, lx1, ly1;
chooseBevel((p1.flags & uiPointFlags.innerBevel) != 0, p0, p1, lw,
out lx0, out ly0, out lx1, out ly1);
float a0 = Mathf.Atan2(-dly0, -dlx0);
float a1 = Mathf.Atan2(-dly1, -dlx1);
if (a1 > a0)
{
a1 -= Mathf.PI * 2;
}
dst.Add(new Vector2(lx0, ly0));
dst.Add(new Vector2(p1.x - dlx0 * rw, p1.y - dly0 * rw));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(ru, 1));
var n = Mathf.CeilToInt((a0 - a1) / Mathf.PI * ncap).clamp(2, ncap);
for (var i = 0; i < n; i++)
{
float u = (float)i / (n - 1);
float a = a0 + u * (a1 - a0);
float rx = p1.x + Mathf.Cos(a) * rw;
float ry = p1.y + Mathf.Sin(a) * rw;
dst.Add(new Vector2(p1.x, p1.y));
dst.Add(new Vector2(rx, ry));
uv.Add(new Vector2(0.5f, 1));
uv.Add(new Vector2(ru, 1));
}
dst.Add(new Vector2(lx1, ly1));
dst.Add(new Vector2(p1.x - dlx1 * rw, p1.y - dly1 * rw));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(ru, 1));
}
else
{
float rx0, ry0, rx1, ry1;
chooseBevel((p1.flags & uiPointFlags.innerBevel) != 0, p0, p1, -rw,
out rx0, out ry0, out rx1, out ry1);
float a0 = Mathf.Atan2(dly0, dlx0);
float a1 = Mathf.Atan2(dly1, dlx1);
if (a1 < a0)
{
a1 += Mathf.PI * 2;
}
dst.Add(new Vector2(p1.x + dlx0 * lw, p1.y + dly0 * lw));
dst.Add(new Vector2(rx0, ry0));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(ru, 1));
var n = Mathf.CeilToInt((a1 - a0) / Mathf.PI * ncap).clamp(2, ncap);
for (var i = 0; i < n; i++)
{
float u = (float)i / (n - 1);
float a = a0 + u * (a1 - a0);
float lx = p1.x + Mathf.Cos(a) * lw;
float ly = p1.y + Mathf.Sin(a) * lw;
dst.Add(new Vector2(lx, ly));
dst.Add(new Vector2(p1.x, p1.y));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(0.5f, 1));
}
dst.Add(new Vector2(p1.x + dlx1 * lw, p1.y + dly1 * lw));
dst.Add(new Vector2(rx1, ry1));
uv.Add(new Vector2(lu, 1));
uv.Add(new Vector2(ru, 1));
}
}