💿🐜 Antkeeper source code
https://antkeeper.com
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44 lines
1.3 KiB
44 lines
1.3 KiB
/*
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* Copyright (C) 2023 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 <engine/ai/steering/behavior/seek.hpp>
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namespace ai {
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namespace steering {
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namespace behavior {
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float3 seek(const agent& agent, const float3& target)
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{
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float3 force = {0, 0, 0};
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const float3 difference = target - agent.position;
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const float sqr_distance = math::dot(difference, difference);
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if (sqr_distance)
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{
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const float inverse_distance = 1.0f / std::sqrt(sqr_distance);
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force = difference * inverse_distance * agent.max_force;
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force -= agent.velocity;
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}
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return force;
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}
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} // namespace behavior
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} // namespace steering
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} // namespace ai
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