ActionCondition()

override bool ActionCondition	(	PlayerBase	player,
		ActionTarget	target,
		ItemBase	item )

См. определение в файле ActionActivateTrap.c строка 46

    {
        ItemBase targetItem = ItemBase.Cast(target.GetObject());
        if (targetItem && targetItem.IsBeingPlaced())
            return false;
        
        if (player.PhysicsGetLinkedEntity() != null)
            return false;
        
        Object targetObject = target.GetObject();
        if (targetObject != null)
        {
            if (targetObject.IsInherited(TrapBase))
            {
                TrapBase trap = TrapBase.Cast(targetObject);
                if (trap.IsActivable() && trap.IsPlaceableAtPosition(trap.GetPosition()))
                    return true;
            }
            else if (targetObject.IsInherited(TrapSpawnBase))
            {
                TrapSpawnBase spawnTrap = TrapSpawnBase.Cast(targetObject);
            
                if (spawnTrap && !spawnTrap.IsActive())
                    return spawnTrap.IsPlaceableAtPosition(spawnTrap.GetPosition());
            }
        } 
        
        return false;
    }

Перекрестные ссылки ActionTarget и TrapSpawnBase::IsPlaceableAtPosition().