Ищу рабочий парашут

#include <amxmodx>
#include <engine>
 
public plugin_init()
{
   register_plugin("Parachute", "1.0", "maeStro");
}
 
public client_PreThink(id)
{
   if(!is_user_alive(id) || !(get_user_flags(id) & ADMIN_LEVEL_H)) return;
   if(get_user_button(id) & IN_USE)
   {
      if(get_entity_flags(id) & FL_ONGROUND) return;
      static Float:velocity[3];
      entity_get_vector(id, EV_VEC_velocity, velocity);
      if(velocity[2] < 0)
      {
         velocity[2] = (velocity[2] + 40.0 < -100) ? velocity[2] + 40.0 : -100.0;
         entity_set_vector(id, EV_VEC_velocity, velocity);
      }
   }
}

& ADMIN_LEVEL_H