1281 EX int inpair(cell *c, int colorpair) {  in inpair()  argument
1282   return (colorpair >> pattern_threecolor(c)) & 1;  in inpair()
1293 EX void hexvisit(cell *c, cell *from, int d, bool mounted, int colorpair) {  in hexvisit()  argument
1305   if(c->monst == moHexSnake && snake_pair(c) == colorpair) {  in hexvisit()
1308     if(!inpair(from, colorpair)) return;  in hexvisit()
1328 EX void movehex(bool mounted, int colorpair) {  in movehex()  argument
1347     for(int t=0; t<c->type; t++) if(c->move(t) && inpair(c->move(t), colorpair))  in movehex()
1352       hexvisit(c->move(t), c, t, mounted, colorpair);  in movehex()
1360     int colorpair;  in movehex_rest()  local
1362       colorpair = snake_pair(c);  in movehex_rest()
1367         if(inpair(c->move(dirtable[u]), colorpair))  in movehex_rest()
1368           hexvisit(c, c->move(dirtable[u]), c->c.spin(dirtable[u]), mounted, colorpair);  in movehex_rest()