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/*
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* Copyright (C) 2020 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_WEATHER_SYSTEM_HPP
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#define ANTKEEPER_WEATHER_SYSTEM_HPP
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#include "entity-system.hpp"
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#include "utility/fundamental-types.hpp"
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class sky_pass;
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class shadow_map_pass;
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class material_pass;
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class ambient_light;
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class directional_light;
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class image;
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class weather_system:
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public entity_system
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{
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public:
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weather_system(entt::registry& registry);
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virtual void update(double t, double dt);
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void set_coordinates(const float2& coordinates);
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void set_ambient_light(ambient_light* light);
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void set_sun_light(directional_light* light);
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void set_moon_light(directional_light* light);
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void set_sky_pass(::sky_pass* pass);
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void set_shadow_map_pass(::shadow_map_pass* pass);
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void set_material_pass(::material_pass* pass);
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/// @param tc Timezone correction, in hours
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void set_time(int year, int month, int day, int hour, int minute, int second, double tc);
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void set_time_scale(float scale);
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void set_sky_palette(const ::image* image);
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void set_sun_palette(const ::image* image);
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void set_moon_palette(const ::image* image);
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void set_ambient_palette(const ::image* image);
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void set_shadow_palette(const ::image* image);
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private:
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double jd;
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float2 coordinates;
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float time_scale;
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float3 sun_direction;
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ambient_light* ambient_light;
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directional_light* sun_light;
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directional_light* moon_light;
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directional_light* shadow_light;
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sky_pass* sky_pass;
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shadow_map_pass* shadow_map_pass;
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material_pass* material_pass;
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const image* sky_palette;
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const image* sun_palette;
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const image* moon_palette;
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const image* ambient_palette;
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const image* shadow_palette;
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std::vector<float3> sun_colors;
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std::vector<float3> moon_colors;
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std::vector<float3> ambient_colors;
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std::vector<float> shadow_strengths;
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std::vector<std::array<float4, 4>> sky_gradients;
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};
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#endif // ANTKEEPER_WEATHER_SYSTEM_HPP
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