[devilsquare]

Hello, I was wondering if it is possible to let the monster draw blood from only the front players!

Look at the example below to understand a little of what I'm talking about:

public set_attack(ent)
{
    new owner = entity_get_edict(ent, EV_ENT_owner)
    new victim = get_victim(ent)
    new Float:start[3], Float:end[3], Float:flFraction, pHit
    entity_get_vector(ent, EV_VEC_origin, start)
    entity_get_vector(victim, EV_VEC_origin, end)

    engfunc(EngFunc_TraceLine, start, end, DONT_IGNORE_MONSTERS, ent, 0)
    get_tr2(0, TR_flFraction, flFraction)
    pHit = get_tr2(0, TR_pHit)

    if (flFraction < 1.0) if (is_valid_ent(pHit)) set_damage(pHit, owner, npc_damage)
}

Sorry for the language mistranslated

[Black Rose]

The target selection seems to be made in get_victim().

You could use TraceHull with an appropriate body to determine if the target is partly covered by something. But it may not have the effect that you want.

A simple distance check should also work. But I'm assuming get_victim() has something like this since no parameters are fed into it.