💿🐜 Antkeeper source code
https://antkeeper.com
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58 lines
1.6 KiB
58 lines
1.6 KiB
/*
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* Copyright (C) 2021 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "entity/systems/steering.hpp"
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#include "entity/components/steering.hpp"
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#include "entity/components/transform.hpp"
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#include "entity/id.hpp"
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namespace entity {
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namespace system {
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steering::steering(entity::registry& registry):
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updatable(registry)
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{}
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void steering::update(double t, double dt)
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{
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registry.view<component::transform, component::steering>().each(
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[&](entity::id entity_id, auto& transform, auto& boid)
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{
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// Accelerate
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boid.velocity += boid.acceleration;
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if (math::dot(boid.velocity, boid.velocity) > boid.max_speed * boid.max_speed)
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{
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boid.velocity = math::normalize(boid.velocity) * boid.max_speed;
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}
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// Clear acceleration
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boid.acceleration = {0, 0, 0};
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// Move
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transform.local.translation += boid.velocity;
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});
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}
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void steering::wander()
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{
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}
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} // namespace system
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} // namespace entity
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