how to limiting angle of rotation?

Leech_v2 · **Author**

Code:

public fw_MissileThink(ent)
{
        if (!pev_valid(ent)) return
        new class[33]
        pev(ent, pev_classname, any:class, any:32)
        if (!equal(class, "rpg_missile")) return
        new id = entity_get_edict(ent, EV_ENT_owner)
        new Float:vec[3]
        velocity_by_aim(ent, 800, vec)
        set_pev(ent, pev_velocity, any:vec)
        new org[3], Float:org2[3]
        if (is_user_alive(id) && g_haswpn[id] && get_user_weapon(id)==CSW_AWP)
        {
                get_user_origin(id, org, 3)
                org2[0] = float(org[0]), org2[1] = float(org[1]), org2[2] = float(org[2])
                aim_origin(ent, org2)
        }
        pev(ent, pev_origin, any:org2)
        message_begin(MSG_BROADCAST, SVC_TEMPENTITY)
        write_byte(TE_SMOKE)
        write_coord(floatround(org2[0]))
        write_coord(floatround(org2[1]))
        write_coord(floatround(org2[2])-20)
        write_short(g_smokeSpr2)
        write_byte(5)
        write_byte(30)
        message_end()
        set_pev(ent, pev_nextthink, any:(get_gametime()+0.01))
}
stock aim_origin(ent, Float:origin[3])
{
        static Float:org[3], Float:vec[3], Float:ang[3], Float:num
        pev(ent, pev_origin, any:org)
        vec[0] = origin[0] - org[0]
        vec[1] = origin[1] - org[1]
        vec[2] = origin[2] - org[2]
        num = 800.0/vector_length(vec)
        vec[0] *= num, vec[1] *= num, vec[2] *= num/-1.0
        vector_to_angle(vec, ang)
        set_pev(ent, pev_v_angle, any:ang)
        ang[0]/=-1.0
        set_pev(ent, pev_angles, any:ang)
}