+ if (pGrey.b) { cNew = lx.hsb(0, 0, lx.b(cNew)); }
+ colors[p.index] = cNew;
+ }
+ }
+}
+//----------------------------------------------------------------------------------------------------------------------------------
+class dTurn {
+ dVertex v;
+ int pos0, pos1;
+ dTurn(int _pos0, dVertex _v, int _pos1) { v = _v; pos0 = _pos0; pos1 = _pos1; }
+}
+
+class dVertex {
+ dVertex c0, c1, c2, c3, // connections on the cube
+ opp, same; // opp - same strip, opp direction
+ // same - same strut, diff strip, dir
+ dTurn t0, t1, t2, t3;
+ Strip s;
+ int dir, ci; // dir -- 1 or -1.
+ // ci -- color index
+
+ dVertex(Strip _s, Point _p) { s = _s; ci = _p.index; }
+ Point getPoint(int i) { return s.points.get(dir>0 ? i : 15-i); }
+ void setOpp(dVertex _opp) { opp = _opp; dir = (ci < opp.ci ? 1 : -1); }
+}
+//----------------------------------------------------------------------------------------------------------------------------------
+class dPixel { dVertex v; int pos; dPixel(dVertex _v, int _pos) { v=_v; pos=_pos; } }
+class dLattice {
+ void addTurn (dVertex v0, int pos0, dVertex v1, int pos1) { dTurn t = new dTurn(pos0, v1, pos1);
+ if (v0.t0 == null) { v0.t0=t; return; }
+ if (v0.t1 == null) { v0.t1=t; return; }
+ if (v0.t2 == null) { v0.t2=t; return; }
+ if (v0.t3 == null) { v0.t3=t; return; }
+ }
+ float dist2 (Strip s1, int pos1, Strip s2, int pos2) { return pointDist(s1.points.get(pos1), s2.points.get(pos2)); }
+ float pd2 (Point p1, float x, float y, float z) { return dist(p1.x,p1.y,p1.z,x,y,z); }
+ boolean sameSame (Strip s1, Strip s2) { return max(dist2(s1, 0, s2, 0), dist2(s1,15, s2,15)) < 5 ; } // same strut, same direction
+ boolean sameOpp (Strip s1, Strip s2) { return max(dist2(s1, 0, s2,15), dist2(s1,15, s2,0 )) < 5 ; } // same strut, opp direction
+ boolean sameBar (Strip s1, Strip s2) { return sameSame(s1,s2) || sameOpp(s1,s2); } // 2 strips on same strut
+
+
+ void addJoint (dVertex v1, dVertex v2) {
+ // should probably replace parallel but further with the new one
+ if (v1.c0 != null && sameBar(v2.s, v1.c0.s)) return;
+ if (v1.c1 != null && sameBar(v2.s, v1.c1.s)) return;
+ if (v1.c2 != null && sameBar(v2.s, v1.c2.s)) return;
+ if (v1.c3 != null && sameBar(v2.s, v1.c3.s)) return;
+
+ if (v1.c0 == null) v1.c0 = v2;
+ else if (v1.c1 == null) v1.c1 = v2;
+ else if (v1.c2 == null) v1.c2 = v2;
+ else if (v1.c3 == null) v1.c3 = v2;
+ }