qcsrc/lib/sortlist.qh

   1 #ifndef SORTLIST_H
   2 #define SORTLIST_H
   3
   4 entityclass(Sort);
   5 //.float(entity,entity) sort_cmp;
   6 class(Sort) .entity chain, sort_next, sort_prev;
   7
   8 entity Sort_Spawn();
   9
  10 /**
  11  * Swap two neighbours in a sortlist.
  12  * @param a FIRST entity
  13  * @param b entity after a
  14  */
  15 #define SORT_SWAP(a,b)                                                                  \
  16         b.sort_prev = a.sort_prev;                                                      \
  17         a.sort_next = b.sort_next;                                                      \
  18         if(b.sort_next) b.sort_next.sort_prev = a;                      \
  19         if(a.sort_prev) a.sort_prev.sort_next = b;                      \
  20         a.sort_prev = b;                                                                        \
  21         b.sort_next = a
  22
  23 #endif