Флаги парашута

#include <amxmodx>
#include <amxmisc>
#include <engine>
#include <fun>
#include <hamsandwich>

#define PARACHUTE_FLAG ADMIN_IMMUNITY

new pFallSpeed = 100

public plugin_init()
{
    register_plugin("Parachute", "1.0", "nick_name");
}

public client_PreThink(id)
{
    if (!is_user_connected(id) || !is_user_alive(id) || !(get_user_flags(id) & PARACHUTE_FLAG)) return

    new Float:fallspeed = pFallSpeed * -1.0

    new button = get_user_button(id)
    new oldbutton = get_user_oldbutton(id)

    if (get_user_gravity(id) == 0.1) set_user_gravity(id, 1.0)

    if (button & IN_USE) 
    {
        new Float:velocity[3]
        entity_get_vector(id, EV_VEC_velocity, velocity)

        if (velocity[2] < 0.0) 
        {
            entity_set_int(id, EV_INT_sequence, 3)
            entity_set_int(id, EV_INT_gaitsequence, 1)
            entity_set_float(id, EV_FL_frame, 1.0)
            entity_set_float(id, EV_FL_framerate, 1.0)
            set_user_gravity(id, 0.1)

            velocity[2] = (velocity[2] + 40.0 < fallspeed) ? velocity[2] + 40.0 : fallspeed
            entity_set_vector(id, EV_VEC_velocity, velocity)
        }
    }
    else if ((oldbutton & IN_USE)) 
    {
        set_user_gravity(id, 1.0)
    }
}