Убийство с грены

#include <amxmodx>

#define is_user_valid(%1) (1 <= %1 <= 32)

public plugin_init()
{
    register_plugin("Grenade Kill", "1.0", "Sho0ter")

    return register_event("DeathMsg", "player_death", "a")
}

public plugin_precache()
{
    precache_sound("sound/misc/grenade.wav")
}

public player_death()
{
    new weapon[32]
    read_data(4, weapon, 31)
    
    if(weapon[1] != 'r')
    {
        return PLUGIN_CONTINUE
    }
    
    new killer = read_data(1)
    new victim = read_data(2)
    
    if(is_user_valid(killer) && is_user_valid(victim))
    {
        new kname[32], vname[32]
        get_user_name(killer, kname, 31)
        get_user_name(victim, vname, 31)
        
        client_cmd(0, "spk sound/misc/grenade.wav")
        
        set_hudmessage(255, 0, 0, -1.0, 0.75, 0, 6.0, 4.0, 0.5, 0.5, -1)
        show_hudmessage(0, "%s killed %s with hegrenade", kname, vname)
    }

    return PLUGIN_CONTINUE
}