💿🐜 Antkeeper source code
https://antkeeper.com
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94 lines
2.6 KiB
94 lines
2.6 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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#ifndef ANTKEEPER_SCENE_SPOT_LIGHT_HPP
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#define ANTKEEPER_SCENE_SPOT_LIGHT_HPP
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#include <engine/scene/light.hpp>
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#include <engine/math/numbers.hpp>
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#include <engine/math/vector.hpp>
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namespace scene {
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/**
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* Directional cone light source.
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*/
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class spot_light: public light
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{
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public:
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/// Returns light_type::spot.
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[[nodiscard]] inline light_type get_light_type() const noexcept override
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{
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return light_type::spot;
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}
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/**
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* Sets the luminous power of the spot light.
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*
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* @param luminous_power Luminous power, in *lm*.
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*/
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inline void set_luminous_power(const math::vector<float, 3>& luminous_power) noexcept
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{
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m_luminous_power = luminous_power;
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}
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/// Returns the luminous power of the spot light, in *lm*.
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[[nodiscard]] inline const math::vector<float, 3>& get_luminous_power() const noexcept
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{
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return m_luminous_power;
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}
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/**
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* Sets the spot light cutoff angles.
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*
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* @param cutoff Vector containing the inner and outer cutoff angles, as x and y, respectively.
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*/
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void set_cutoff(const math::vector<float, 2>& cutoff);
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/// Returns the direction vector.
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[[nodiscard]] inline const math::vector<float, 3>& get_direction() const noexcept
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{
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return m_direction;
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}
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/// Returns the spot light cutoff angles.
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[[nodiscard]] inline const math::vector<float, 2>& get_cutoff() const noexcept
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{
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return m_cutoff;
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}
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/// Returns the cosine of the spot light cutoff angles.
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[[nodiscard]] inline const math::vector<float, 2>& get_cosine_cutoff() const noexcept
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{
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return m_cosine_cutoff;
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}
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private:
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void transformed() override;
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math::vector<float, 3> m_luminous_power{0.0f, 0.0f, 0.0f};
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math::vector<float, 3> m_direction{0.0f, 0.0f, -1.0f};
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math::vector<float, 2> m_cutoff{math::pi<float>, math::pi<float>};
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math::vector<float, 2> m_cosine_cutoff{-1.0f, -1.0f};
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};
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} // namespace scene
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#endif // ANTKEEPER_SCENE_SPOT_LIGHT_HPP
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