source/src/game/systems/behavior-system.cpp

/*
 * Copyright (C) 2021  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 "game/systems/behavior-system.hpp"
#include "game/components/behavior-component.hpp"

using namespace ecs;

behavior_system::behavior_system(entt::registry& registry):
	entity_system(registry)
{}

void behavior_system::update(double t, double dt)
{
	ebt::context context;
	context.registry = &registry;

	registry.view<behavior_component>().each(
		[&](auto entity, auto& behavior)
		{
			if (behavior.behavior_tree)
			{
				context.entity = entity;
				behavior.behavior_tree->execute(context);
			}
		});
}