💿🐜 Antkeeper source code
https://antkeeper.com
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60 lines
1.7 KiB
60 lines
1.7 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/scene/object.hpp>
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#include <engine/math/interpolation.hpp>
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namespace scene {
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typename object_base::transform_type object_base::interpolate_transforms(const transform_type& x, const transform_type& y, float a)
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{
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return
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{
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math::lerp(x.translation, y.translation, a),
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math::nlerp(x.rotation, y.rotation, a),
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math::lerp(x.scale, y.scale, a),
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};
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}
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object_base::object_base():
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transform(math::transform<float>::identity, interpolate_transforms)
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{}
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std::size_t object_base::next_object_type_id()
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{
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static std::atomic<std::size_t> id{0};
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return id++;
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}
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void object_base::update_tweens()
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{
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transform.update();
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}
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void object_base::look_at(const vector_type& position, const vector_type& target, const vector_type& up)
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{
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transform[1].translation = position;
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transform[1].rotation = math::look_rotation(math::normalize(math::sub(target, position)), up);
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transformed();
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}
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void object_base::transformed()
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{}
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} // namespace scene
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