💿🐜 Antkeeper source code
https://antkeeper.com
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109 lines
3.9 KiB
109 lines
3.9 KiB
/*
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* Copyright (C) 2021 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 "game/states/nuptial-flight.hpp"
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#include "entity/systems/astronomy.hpp"
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#include "entity/systems/orbit.hpp"
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#include "entity/systems/control.hpp"
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#include "entity/systems/camera.hpp"
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#include "entity/components/observer.hpp"
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#include "entity/components/camera-follow.hpp"
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#include "entity/components/transform.hpp"
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#include "entity/components/terrain.hpp"
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#include "renderer/material-property.hpp"
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#include "animation/screen-transition.hpp"
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#include "animation/ease.hpp"
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#include "resources/config-file.hpp"
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#include "resources/resource-manager.hpp"
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namespace game {
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namespace state {
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namespace nuptial_flight {
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void enter(game::context* ctx)
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{
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// Find planet EID by name
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entity::id planet_eid = entt::null;
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if (auto it = ctx->named_entities.find("planet"); it != ctx->named_entities.end())
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{
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planet_eid = it->second;
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}
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// Replace planet terrain material with cloud material
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entity::component::terrain planet_terrain = ctx->entity_registry->get<entity::component::terrain>(planet_eid);
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planet_terrain.patch_material = ctx->resource_manager->load<material>("cloud.mtl");
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ctx->entity_registry->replace<entity::component::terrain>(planet_eid, planet_terrain);
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// Create observer
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auto observer_eid = ctx->entity_registry->create();
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{
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entity::component::observer observer;
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observer.reference_body_eid = planet_eid;
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observer.elevation = 2000.0;
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observer.latitude = 0.0;
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observer.longitude = 0.0;
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observer.camera = ctx->overworld_camera;
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ctx->entity_registry->assign<entity::component::observer>(observer_eid, observer);
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// Set reference location of astronomy system
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ctx->astronomy_system->set_reference_body(planet_eid);
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ctx->astronomy_system->set_observer_location(double3{observer.elevation, observer.latitude, observer.longitude});
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}
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// Create camera focal point
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{
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entity::component::transform focal_point_transform;
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focal_point_transform.local = math::identity_transform<float>;
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focal_point_transform.warp = true;
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ctx->entity_registry->assign_or_replace<entity::component::transform>(ctx->focal_point_entity, focal_point_transform);
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entity::component::camera_follow focal_point_follow;
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ctx->entity_registry->assign_or_replace<entity::component::camera_follow>(ctx->focal_point_entity, focal_point_follow);
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}
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// Setup camera
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ctx->overworld_camera->look_at({0, 0, 1}, {0, 0, 0}, {0, 1, 0});
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ctx->overworld_camera->set_exposure(-14.5f);
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ctx->camera_system->set_camera(ctx->overworld_camera);
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entity::system::control* control_system = ctx->control_system;
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control_system->update(0.0, 0.0);
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ctx->overworld_scene->update_tweens();
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// Pause motion of celestial objects
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ctx->astronomy_system->set_time_scale(0.0);
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ctx->orbit_system->set_time_scale(0.0);
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// Start fade in from white
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ctx->fade_transition_color->set_value({1, 1, 1});
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ctx->fade_transition->transition(2.0f, true, ease<float>::in_quad);
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}
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void exit(game::context* ctx)
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{
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// Resume motion of celestial objects
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const double time_scale = ctx->config->get<double>("time_scale");
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ctx->astronomy_system->set_time_scale(time_scale);
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ctx->orbit_system->set_time_scale(time_scale);
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}
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} // namespace nuptial_flight
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} // namespace state
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} // namespace game
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