(svn r2156) -Fix: in revision 2104 someone forgot to add a very important check in
GetPrevVehicleInChain; this caused some nasty bugs in depots, like
wagons without engines complain about not being stopped, and stuff like
that. Hopefully this fixes those problems. With a big tnx to BJH for his
perfect demo!
#ifndef DEBUG_H
#define DEBUG_H
#ifdef NO_DEBUG_MESSAGES
#define DEBUG(name, level)
#else
#define DEBUG(name, level) if (level == 0 || _debug_ ## name ## _level >= level) debug
extern int _debug_ai_level;
extern int _debug_grf_level;
extern int _debug_map_level;
extern int _debug_misc_level;
extern int _debug_ms_level;
extern int _debug_net_level;
extern int _debug_spritecache_level;
extern int _debug_oldloader_level;
#endif
void CDECL debug(const char *s, ...);
void SetDebugString(const char *s);
#endif