/*
 * Copyright (C) 2017-2019  Christopher J. Howard
 *
 * This file is part of Antkeeper Source Code.
 *
 * Antkeeper Source Code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Antkeeper Source Code is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Antkeeper Source Code.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "component.hpp"
#include "component-manager.hpp"
#include "entity-group.hpp"

EntityGroupBase::EntityGroupBase(ComponentManager* componentManager, const ComponentFilter& componentFilter):
	ComponentObserver(componentManager),
	componentFilter(componentFilter)
{}

void EntityGroupBase::componentAdded(EntityID entity, ComponentBase* component)
{
	if (componentFilter.find(component->getComponentType()) != componentFilter.end())
	{
		for (auto it = componentFilter.begin(); it != componentFilter.end(); ++it)
		{
			if (*it == component->getComponentType())
			{
				continue;
			}
			else if (!componentManager->getComponent(entity, *it))
			{
				return;
			}
		}

		registerMember(entity);
	}
}

void EntityGroupBase::componentRemoved(EntityID entity, ComponentBase* component)
{
	if (componentFilter.find(component->getComponentType()) != componentFilter.end())
	{
		if (isRegistered(entity))
		{
			unregisterMember(entity);
		}
	}
}