The Dink Network

What I'm trying to do in the script below is to get the bonca run away before he is killed - but unfortunately the script doesn't work. So what's wrong?

//blood bonca that lives in the cellar

void main( void )
{
int &mcounter;
sp_brain(&current_sprite, 9);
sp_speed(&current_sprite, 2);
sp_distance(&current_sprite, 50);
sp_timing(&current_sprite, 0);
sp_exp(&current_sprite, 100);
sp_base_walk(&current_sprite, 860);
sp_base_death(&current_sprite, 880);
sp_base_attack(&current_sprite, 870);
sp_defense(&current_sprite, 0);
sp_strength(&current_sprite, 10);
sp_touch_damage(&current_sprite, 5);
sp_hitpoints(&current_sprite, 100);
sp_target(&current_sprite, 1);

preload_seq(861);
preload_seq(863);
preload_seq(867);
preload_seq(869);

preload_seq(872);
preload_seq(874);
preload_seq(876);
preload_seq(878);

preload_seq(881);
preload_seq(883);
preload_seq(887);
preload_seq(889);

mainloop:
int &rough = sp_hitpoints(&current_sprite, -1);
if (&rough < 20)
{
end();
}
wait(1);
goto mainloop;

}

void hit( void )
{
playsound(29, 22050,0,&current_sprite, 0);
sp_target(&current_sprite, &enemy_sprite);
}

void talk( void )
{
if (sp_target(&current_sprite, -1) == 1)
{
say("`#Now you will die!", &current_sprite);
}
if (sp_target(&current_sprite, -1) != 1)
{
playsound(29, 22050,0,&current_sprite, 0);
say("`#Get away from me!", &current_sprite);
}
}

void end( void )
{
script_attach(1000);
say("`#Arruunk!", &current_sprite);
sp_speed(&current_sprtie, 4);
sp_timing(&current_sprite, 0);
move_stop(&current_sprite, 4, 0, 1);
sp_active(&current_sprite, 0);
freeze(1);
sp_dir(1, 4);
wait(1000);
say_stop("Stupid bonca...", 1);
wait(250);
unfreeze(1);

if (&get_sprite_with_this_brain(9 == 0)
{
screenlock(0);
if (&story == 13)
{
playmidi("winter.mid");
}
}
}

void attack( void )
{
playsound(31, 22050,0,&current_sprite, 0);
&mcounter = random(1000,0);
sp_attack_wait(&current_sprite, &mcounter);
}