Free Hero Mesh

Uint32 objalloc(Uint16 c) {
  // Allocates a new object of the given class; links into the event list but not into the playfield.
  // All fields are initialized by the class or to zero.
  // Does not send any messages or otherwise notify anyone that it has been created.
  // Returns VOIDLINK if object cannot be created.
  Uint32 n;
  Class*cl=classes[c];
  Object*o=calloc(1,sizeof(Object)+cl->uservars*sizeof(Value));
  Object*o=0;
  if(!c || !cl || cl->cflags&(CF_GROUP|CF_NOCLASS2)) goto bad;
  o=calloc(1,sizeof(Object)+cl->uservars*sizeof(Value));
  if(!o) fatal("Allocation failed\n");
  o->class=c;
  o->generation=generation_number;
#define C(x) o->x=cl->x;
  C(height) C(weight) C(climb) C(density) C(volume) C(strength) C(arrivals) C(departures) C(temperature)
  C(shape) C(shovable) C(oflags)
  C(sharp[0]) C(sharp[1]) C(sharp[2]) C(sharp[3])

  int i,n,x,y,z;
  Uint16 lo=0;
  Uint32 o;
  Uint32 mru[2];
  if(lvl<0 && level_index && -lvl<=level_nindex) {
    lo=-lvl;
    lvl=level_index[~lvl];
    p=buf=read_lump(FIL_LEVEL,lvl,&sz,0);
    end=buf+sz;
  }
  if(lvl<0) return "Invalid level ID";
  if(!buf) return "Cannot find level";
  free(level_title);
  level_title=0;
  annihilate();
  generation_number=TY_MAXTYPE+1;