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- /*
- * Copyright (C) 2021 Christopher J. Howard
- *
- * This file is part of Antkeeper source code.
- *
- * Antkeeper source code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Antkeeper source code is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
- */
-
- #include "game/systems/weather-system.hpp"
- #include "scene/directional-light.hpp"
- #include "scene/ambient-light.hpp"
- #include "renderer/passes/sky-pass.hpp"
- #include "renderer/passes/shadow-map-pass.hpp"
- #include "renderer/passes/material-pass.hpp"
- #include "utility/gamma.hpp"
- #include "resources/image.hpp"
- #include "game/astronomy/celestial-coordinates.hpp"
- #include "game/astronomy/celestial-mechanics.hpp"
- #include <cmath>
-
- static constexpr double seconds_per_day = 24.0 * 60.0 * 60.0;
-
- weather_system::weather_system(entt::registry& registry):
- entity_system(registry),
- sky_pass(nullptr),
- shadow_map_pass(nullptr),
- material_pass(nullptr),
- universal_time(0.0),
- days_per_timestep(1.0 / seconds_per_day)
- {}
-
- void weather_system::update(double t, double dt)
- {
- // Add scaled timestep to current time
- set_universal_time(universal_time + dt * days_per_timestep);
- }
-
- void weather_system::set_sky_pass(::sky_pass* pass)
- {
- sky_pass = pass;
- }
-
- void weather_system::set_shadow_map_pass(::shadow_map_pass* pass)
- {
- shadow_map_pass = pass;
- }
-
- void weather_system::set_material_pass(::material_pass* pass)
- {
- material_pass = pass;
- material_pass->set_shadow_strength(0.5f);
- }
-
- void weather_system::set_universal_time(double time)
- {
- universal_time = time;
- }
-
- void weather_system::set_time_scale(double scale)
- {
- days_per_timestep = scale / seconds_per_day;
- }
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