private:
static int l_add_particle(lua_State *L);
static int l_add_particlespawner(lua_State *L);
static int l_delete_particlespawner(lua_State *L);
private:
static int l_add_particle(lua_State *L);
static int l_add_particlespawner(lua_State *L);
static int l_delete_particlespawner(lua_State *L);