nest-view-state.cpp

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/*
 * Copyright (C) 2023  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/states/nest-view-state.hpp"
 
#include "game/ant/ant-cladogenesis.hpp"
#include "game/ant/ant-genome.hpp"
#include "game/ant/ant-morphogenesis.hpp"
#include "game/ant/ant-phenome.hpp"
#include "game/commands/commands.hpp"
#include "game/components/constraint-stack-component.hpp"
#include "game/components/scene-component.hpp"
#include "game/components/picking-component.hpp"
#include "game/components/rigid-body-component.hpp"
#include "game/components/rigid-body-constraint-component.hpp"
#include "game/components/steering-component.hpp"
#include "game/components/terrain-component.hpp"
#include "game/components/legged-locomotion-component.hpp"
#include "game/components/winged-locomotion-component.hpp"
#include "game/components/ik-component.hpp"
#include "game/components/transform-component.hpp"
#include "game/constraints/child-of-constraint.hpp"
#include "game/constraints/copy-rotation-constraint.hpp"
#include "game/constraints/copy-scale-constraint.hpp"
#include "game/constraints/copy-transform-constraint.hpp"
#include "game/constraints/copy-translation-constraint.hpp"
#include "game/constraints/ease-to-constraint.hpp"
#include "game/constraints/pivot-constraint.hpp"
#include "game/constraints/spring-rotation-constraint.hpp"
#include "game/constraints/spring-to-constraint.hpp"
#include "game/constraints/spring-translation-constraint.hpp"
#include "game/constraints/three-dof-constraint.hpp"
#include "game/constraints/track-to-constraint.hpp"
#include "game/controls.hpp"
#include "game/spawn.hpp"
#include "game/states/pause-menu-state.hpp"
#include "game/systems/astronomy-system.hpp"
#include "game/systems/atmosphere-system.hpp"
#include "game/systems/camera-system.hpp"
#include "game/systems/collision-system.hpp"
#include "game/world.hpp"
#include <engine/animation/ease.hpp>
#include <engine/animation/screen-transition.hpp>
#include <engine/config.hpp>
#include <engine/entity/archetype.hpp>
#include <engine/input/mouse.hpp>
#include <engine/math/interpolation.hpp>
#include <engine/math/projection.hpp>
#include <engine/physics/light/exposure.hpp>
#include <engine/physics/kinematics/constraints/spring-constraint.hpp>
#include <engine/physics/kinematics/colliders/sphere-collider.hpp>
#include <engine/physics/kinematics/colliders/plane-collider.hpp>
#include <engine/physics/kinematics/colliders/box-collider.hpp>
#include <engine/physics/kinematics/colliders/capsule-collider.hpp>
#include <engine/render/passes/material-pass.hpp>
#include <engine/resources/resource-manager.hpp>
#include <engine/utility/state-machine.hpp>
#include <engine/scene/static-mesh.hpp>
#include <engine/scene/skeletal-mesh.hpp>
#include <engine/scene/rectangle-light.hpp>
#include <engine/scene/point-light.hpp>
#include <engine/geom/intersection.hpp>
#include <engine/animation/ease.hpp>
#include <engine/color/color.hpp>
#include <engine/geom/brep/brep-operations.hpp>
#include <engine/geom/coordinates.hpp>
#include <engine/ai/navmesh.hpp>
 
nest_view_state::nest_view_state(::game& ctx):
    game_state(ctx)
{
    debug::log_trace("Entering nest view state...");    
    
    // Create world if not yet created
    if (ctx.entities.find("earth") == ctx.entities.end())
    {
        // Create cosmos
        ::world::cosmogenesis(ctx);
        
        // Create observer
        ::world::create_observer(ctx);
    }
    
    ctx.active_ecoregion = ctx.resource_manager->load<::ecoregion>("seedy-scrub.eco");
    ::world::enter_ecoregion(ctx, *ctx.active_ecoregion);
    
    debug::log_trace("Generating genome...");
    std::unique_ptr<ant_genome> genome = ant_cladogenesis(ctx.active_ecoregion->gene_pools[0], ctx.rng);
    debug::log_trace("Generated genome");
    
    debug::log_trace("Building worker phenome...");
    worker_phenome = ant_phenome(*genome, ant_caste_type::worker);
    debug::log_trace("Built worker phenome...");
    
    debug::log_trace("Generating worker model...");
    std::shared_ptr<render::model> worker_model = ant_morphogenesis(worker_phenome);
    debug::log_trace("Generated worker model");
    
    // Create directional light
    // ctx.underground_directional_light = std::make_unique<scene::directional_light>();
    // ctx.underground_directional_light->set_color({1.0f, 1.0f, 1.0f});
    // ctx.underground_directional_light->set_illuminance(2.0f);
    // ctx.underground_directional_light->set_direction(math::normalize(math::fvec3{0, -1, 0}));
    // ctx.underground_directional_light->set_shadow_caster(true);
    // ctx.underground_directional_light->set_shadow_framebuffer(ctx.shadow_map_framebuffer);
    // ctx.underground_directional_light->set_shadow_bias(0.005f);
    // ctx.underground_directional_light->set_shadow_cascade_count(4);
    // ctx.underground_directional_light->set_shadow_cascade_coverage(0.15f);
    // ctx.underground_directional_light->set_shadow_cascade_distribution(0.8f);
    // ctx.underground_scene->add_object(*ctx.underground_directional_light);
    
    light_probe = std::make_shared<scene::light_probe>();
    light_probe->set_luminance_texture(ctx.resource_manager->load<gl::texture_cube>("grey-furnace.tex"));
    ctx.underground_scene->add_object(*light_probe);
    
    const math::fvec3 light_color{1.0f, 1.0f, 1.0f}; 
    
    // Create rectangle light
    ctx.underground_rectangle_light = std::make_unique<scene::rectangle_light>();
    ctx.underground_rectangle_light->set_color(light_color);
    ctx.underground_rectangle_light->set_luminous_flux(1500.0f);
    ctx.underground_rectangle_light->set_translation({0.0f, 10.0f, 0.0f});
    ctx.underground_rectangle_light->set_rotation(math::fquat::rotate_x(math::radians(90.0f)));
    ctx.underground_rectangle_light->set_scale(7.0f);
    ctx.underground_scene->add_object(*ctx.underground_rectangle_light);
    
    // Create light rectangle
    auto light_rectangle_model = ctx.resource_manager->load<render::model>("light-rectangle.mdl");
    auto light_rectangle_material = std::make_shared<render::material>(*light_rectangle_model->get_groups().front().material);
    light_rectangle_emissive = std::static_pointer_cast<render::matvar_fvec3>(light_rectangle_material->get_variable("emissive"));
    light_rectangle_emissive->set(ctx.underground_rectangle_light->get_colored_luminance());
    auto light_rectangle_static_mesh = std::make_shared<scene::static_mesh>(light_rectangle_model);
    light_rectangle_static_mesh->set_material(0, light_rectangle_material);
    
    auto light_rectangle_eid = ctx.entity_registry->create();
    ctx.entity_registry->emplace<scene_component>(light_rectangle_eid, std::move(light_rectangle_static_mesh), std::uint8_t{2});
    ctx.entity_registry->patch<scene_component>
    (
        light_rectangle_eid,
        [&](auto& component)
        {
            component.object->set_transform(ctx.underground_rectangle_light->get_transform());
        }
    );
    
    // Create treadmill
    auto treadmill_eid = ctx.entity_registry->create();
    scene_component treadmill_scene_component;
    treadmill_scene_component.object = std::make_shared<scene::static_mesh>(ctx.resource_manager->load<render::model>("treadmill-5cm.mdl"));
    treadmill_scene_component.layer_mask = 2;
    ctx.entity_registry->emplace<scene_component>(treadmill_eid, std::move(treadmill_scene_component));
    
    // Create worker
    auto worker_skeletal_mesh = std::make_unique<scene::skeletal_mesh>(worker_model);
    worker_eid = ctx.entity_registry->create();
    transform_component worker_transform_component;
    worker_transform_component.local = math::transform<float>::identity();
    worker_transform_component.local.translation = {0, 0.1f, 0};
    worker_transform_component.local.scale = math::fvec3::one() * worker_phenome.body_size->mean_mesosoma_length;
    worker_transform_component.world = worker_transform_component.local;
    ctx.entity_registry->emplace<transform_component>(worker_eid, worker_transform_component);
    ctx.entity_registry->emplace<scene_component>(worker_eid, std::move(worker_skeletal_mesh), std::uint8_t{2});
    
    // Create cocoon
    auto cocoon_eid = ctx.entity_registry->create();
    auto cocoon_static_mesh = std::make_shared<scene::static_mesh>(worker_phenome.pupa->cocoon_model);
    cocoon_static_mesh->set_scale(worker_phenome.body_size->mean_mesosoma_length);
    ctx.entity_registry->emplace<scene_component>(cocoon_eid, std::move(cocoon_static_mesh), std::uint8_t{2});
    ctx.entity_registry->patch<scene_component>
    (
        cocoon_eid,
        [&](auto& component)
        {
            component.object->set_translation({-4.0f, 0.0f, 4.0f});
        }
    );
    
    // Create color checker
    auto color_checker_eid = ctx.entity_registry->create();
    scene_component color_checker_scene_component;
    color_checker_scene_component.object = std::make_shared<scene::static_mesh>(ctx.resource_manager->load<render::model>("color-checker.mdl"));
    color_checker_scene_component.object->set_translation({0, 0, 4});
    color_checker_scene_component.layer_mask = 2;
    ctx.entity_registry->emplace<scene_component>(color_checker_eid, std::move(color_checker_scene_component));
    
    // Create larva
    larva_eid = ctx.entity_registry->create();
    auto larva_skeletal_mesh = std::make_shared<scene::skeletal_mesh>(worker_phenome.larva->model);
    larva_skeletal_mesh->set_scale(worker_phenome.body_size->mean_mesosoma_length);
    ctx.entity_registry->emplace<scene_component>(larva_eid, std::move(larva_skeletal_mesh), std::uint8_t{2});
    ctx.entity_registry->patch<scene_component>
    (
        larva_eid,
        [&](auto& component)
        {
            component.object->set_translation({4.0f, 0.0f, 4.0f});
        }
    );
    
    // Create sphere
    // auto sphere_eid = ctx.entity_registry->create();
    // auto sphere_static_mesh = std::make_shared<scene::static_mesh>(ctx.resource_manager->load<render::model>("sphere.mdl"));
    // ctx.entity_registry->emplace<scene_component>(sphere_eid, std::move(sphere_static_mesh), std::uint8_t{2});
    // ctx.entity_registry->patch<scene_component>
    // (
        // sphere_eid,
        // [&](auto& component)
        // {
            // component.object->set_translation({0.0f, 0.0f, 0.0f});
        // }
    // );
    
    // Set world time
    ::world::set_time(ctx, 2022, 6, 21, 12, 0, 0.0);
    
    // Init time scale
    double time_scale = 60.0;
    
    // Set time scale
    ::world::set_time_scale(ctx, time_scale);
    
    // Setup camera
    ctx.underground_camera->set_exposure_value(0.0f);
    
    const auto& viewport_size = ctx.window->get_viewport_size();
    const float aspect_ratio = static_cast<float>(viewport_size[0]) / static_cast<float>(viewport_size[1]);
    
    // Create third person camera rig
    create_third_person_camera_rig();
    
    // Setup controls
    setup_controls();
    
    // Queue enable game controls
    ctx.function_queue.push
    (
        [&ctx]()
        {
            ::enable_game_controls(ctx);
        }
    );
    
    // Queue fade in
    ctx.fade_transition_color->set({0, 0, 0});
    ctx.function_queue.push(std::bind(&screen_transition::transition, ctx.fade_transition.get(), 1.0f, true, ease<float>::out_sine, true, nullptr));
    
    // Refresh frame scheduler
    ctx.frame_scheduler.refresh();
    
    // Load navmesh
    navmesh = ctx.resource_manager->load<geom::brep_mesh>("treadmill-5cm.msh");
    
    // Generate navmesh attributes
    geom::generate_face_normals(*navmesh);
    geom::generate_vertex_normals(*navmesh);
    
    // Build navmesh BVH
    debug::log_info("building bvh");
    navmesh_bvh = std::make_unique<geom::bvh>(*navmesh);
    debug::log_info("building bvh done");
    
    debug::log_trace("Entered nest view state");
}
 
nest_view_state::~nest_view_state()
{
    debug::log_trace("Exiting nest view state...");
    
    // Disable game controls
    ::disable_game_controls(ctx);
    
    destroy_third_person_camera_rig();
    
    debug::log_trace("Exited nest view state");
}
 
void nest_view_state::create_third_person_camera_rig()
{
    // Construct third person camera rig scene component
    scene_component third_person_camera_rig_camera;
    third_person_camera_rig_camera.object = ctx.underground_camera;
    third_person_camera_rig_camera.layer_mask = 2;
    
    // Construct third person camera rig entity
    third_person_camera_rig_eid = ctx.entity_registry->create();
    ctx.entity_registry->emplace<scene_component>(third_person_camera_rig_eid, third_person_camera_rig_camera);
    
    set_third_person_camera_zoom(third_person_camera_zoom);
    set_third_person_camera_rotation(third_person_camera_yaw, third_person_camera_pitch);
    update_third_person_camera();
}
 
void nest_view_state::destroy_third_person_camera_rig()
{
    ctx.entity_registry->destroy(third_person_camera_rig_eid);
}
 
void nest_view_state::set_third_person_camera_zoom(double zoom)
{
    // Clamp zoom
    third_person_camera_zoom = std::min<double>(std::max<double>(zoom, 0.0), 1.0);
    
    // Update FoV
    third_person_camera_hfov = ease<double, double>::out_sine(third_person_camera_far_hfov, third_person_camera_near_hfov, third_person_camera_zoom);
    third_person_camera_vfov = math::vertical_fov(third_person_camera_hfov, static_cast<double>(ctx.underground_camera->get_aspect_ratio()));
    
    // Update focal plane size
    third_person_camera_focal_plane_height = ease<double, double>::out_sine(third_person_camera_far_focal_plane_height, third_person_camera_near_focal_plane_height, third_person_camera_zoom);
    third_person_camera_focal_plane_width = third_person_camera_focal_plane_height * ctx.underground_camera->get_aspect_ratio();
    
    // Update focal distance
    third_person_camera_focal_distance = third_person_camera_focal_plane_height * 0.5 / std::tan(third_person_camera_vfov * 0.5);
    
    // update_third_person_camera();
}
 
void nest_view_state::set_third_person_camera_rotation(double yaw, double pitch)
{
    third_person_camera_yaw = yaw;
    third_person_camera_pitch = std::min(math::half_pi<double>, std::max(-math::half_pi<double>, pitch));
    
    third_person_camera_yaw_rotation = math::angle_axis(third_person_camera_yaw, {0.0, 1.0, 0.0});
    third_person_camera_pitch_rotation = math::angle_axis(third_person_camera_pitch, {-1.0, 0.0, 0.0});
    third_person_camera_orientation = math::normalize(third_person_camera_yaw_rotation * third_person_camera_pitch_rotation);
}
 
void nest_view_state::zoom_third_person_camera(double zoom)
{
    set_third_person_camera_zoom(third_person_camera_zoom + zoom);
}
 
void nest_view_state::translate_third_person_camera(const math::dvec3& direction, double magnitude)
{
    // Scale translation magnitude by factor of focal plane height
    magnitude *= third_person_camera_focal_plane_height * third_person_camera_speed;
    
    // Rotate translation direction according to camera yaw
    const math::dvec3 rotated_direction = third_person_camera_yaw_rotation * direction;
    
    third_person_camera_focal_point += rotated_direction * magnitude;
    
    // update_third_person_camera();
}
 
void nest_view_state::rotate_third_person_camera(const input::mouse_moved_event& event)
{
    const double yaw = third_person_camera_yaw - ctx.mouse_pan_factor * static_cast<double>(event.difference.x());
    const double pitch = third_person_camera_pitch + ctx.mouse_tilt_factor * static_cast<double>(event.difference.y());
    
    set_third_person_camera_rotation(yaw, pitch);
}
 
void nest_view_state::handle_mouse_motion(const input::mouse_moved_event& event)
{
    ctx.underground_material_pass->set_mouse_position(math::fvec2(event.position));
    
    if (!mouse_look && !mouse_grip && !mouse_zoom)
    {
        return;
    }
    
    if (mouse_grip)
    {
        const math::dvec2 viewport_size = math::dvec2(ctx.window->get_viewport_size());
        
        math::dvec3 translation
        {
            third_person_camera_focal_plane_width * (static_cast<double>(-event.difference.x()) / (viewport_size.x() - 1.0)),
            0.0,
            third_person_camera_focal_plane_height * (static_cast<double>(-event.difference.y()) / (viewport_size.y() - 1.0)),
        };
        
        if (third_person_camera_pitch < 0.0)
        {
            translation.z() *= -1.0;
        }
        
        third_person_camera_focal_point += third_person_camera_yaw_rotation * translation;
    }
    
    if (mouse_look)
    {
        rotate_third_person_camera(event);
    }
    
    if (mouse_zoom)
    {
        const double zoom_speed = -1.0 / static_cast<double>(ctx.window->get_viewport_size().y());
        zoom_third_person_camera(static_cast<double>(event.difference.y()) * zoom_speed);
    }
    
    update_third_person_camera();
}
 
void nest_view_state::update_third_person_camera()
{
 
}
 
geom::ray<float, 3> nest_view_state::get_mouse_ray(const math::vec2<std::int32_t>& mouse_position) const
{
    // Get window viewport size
    const auto& viewport_size = ctx.window->get_viewport_size();
    
    // Transform mouse coordinates from window space to NDC space
    const math::fvec2 mouse_ndc =
    {
        static_cast<float>(mouse_position.x()) / static_cast<float>(viewport_size.x() - 1) * 2.0f - 1.0f,
        (1.0f - static_cast<float>(mouse_position.y()) / static_cast<float>(viewport_size.y() - 1)) * 2.0f - 1.0f
    };
    
    const auto& scene_component = ctx.entity_registry->get<::scene_component>(third_person_camera_rig_eid);
    const auto& camera = static_cast<const scene::camera&>(*scene_component.object);
    
    return camera.pick(mouse_ndc);
}
 
void nest_view_state::setup_controls()
{
    /*
    // Enable/toggle mouse look
    action_subscriptions.emplace_back
    (
        ctx.mouse_look_action.get_activated_channel().subscribe
        (
            [&](const auto& event)
            {
                mouse_look = ctx.toggle_mouse_look ? !mouse_look : true;
                
                //ctx.input_manager->set_cursor_visible(!mouse_look);
                ctx.input_manager->set_relative_mouse_mode(mouse_look || mouse_grip || mouse_zoom);
            }
        )
    );
    
    // Disable mouse look
    action_subscriptions.emplace_back
    (
        ctx.mouse_look_action.get_deactivated_channel().subscribe
        (
            [&](const auto& event)
            {
                if (!ctx.toggle_mouse_look && mouse_look)
                {
                    mouse_look = false;
                    //ctx.input_manager->set_cursor_visible(true);
                    ctx.input_manager->set_relative_mouse_mode(mouse_look || mouse_grip || mouse_zoom);
                }
            }
        )
    );
    
    // Enable/toggle mouse grip
    action_subscriptions.emplace_back
    (
        ctx.mouse_grip_action.get_activated_channel().subscribe
        (
            [&](const auto& event)
            {
                mouse_grip = ctx.toggle_mouse_grip ? !mouse_grip : true;
                
                if (mouse_grip)
                {
                    const auto& mouse_position = (*ctx.input_manager->get_mice().begin())->get_position();
                    
                    // Cast ray to plane
                    const auto mouse_ray = get_mouse_ray(mouse_position);
                    const auto intersection = geom::intersection(mouse_ray, mouse_grip_plane);
                    if (intersection)
                    {
                        mouse_grip_point = mouse_ray.origin + mouse_ray.direction * (*intersection);
                    }
                }
                
                ctx.input_manager->set_relative_mouse_mode(mouse_look || mouse_grip || mouse_zoom);
                
                // BVH picking test
                const auto& mouse_position = (*ctx.input_manager->get_mice().begin())->get_position();
                const auto mouse_ray = get_mouse_ray(mouse_position);
                
                debug::log_info("pick:");
                float nearest_hit = std::numeric_limits<float>::infinity();
                bool hit = false;
                std::uint32_t hit_index;
                const auto& vertex_positions = navmesh->vertices().attributes().at<math::fvec3>("position");
                std::size_t test_count = 0;
                
                
                int box_test_passed = 0;
                navmesh_bvh->visit
                (
                    mouse_ray,
                    [&](std::uint32_t index)
                    {
                        ++box_test_passed;
                        
                        geom::brep_face* face = navmesh->faces()[index];
                        auto loop = face->loops().begin();
                        const auto& a = vertex_positions[loop->vertex()->index()];
                        const auto& b = vertex_positions[(++loop)->vertex()->index()];
                        const auto& c = vertex_positions[(++loop)->vertex()->index()];
                        
                        if (auto intersection = geom::intersection(mouse_ray, a, b, c))
                        {
                            ++test_count;
                            float t = std::get<0>(*intersection);
                            if (t < nearest_hit)
                            {
                                hit = true;
                                nearest_hit = t;
                                hit_index = index;
                            }
                        }
                        
                        
                    }
                );
                
                debug::log_info("box tests passed: {}", box_test_passed);
                
                if (hit)
                {
                    const auto& navmesh_face_normals = navmesh->faces().attributes().at<math::fvec3>("normal");
                    
                    navmesh_agent_face = navmesh->faces()[hit_index];
                    navmesh_agent_position = mouse_ray.extrapolate(nearest_hit);
                    navmesh_agent_normal = navmesh_face_normals[hit_index];
                    
                    
                    const auto& hit_normal = navmesh_face_normals[hit_index];
                    
                    const float standing_height = worker_phenome.legs->standing_height * worker_phenome.body_size->mean_mesosoma_length;
                    const math::fvec3 translation = navmesh_agent_position + hit_normal * standing_height;
                    
                    const math::fquat rotation = math::rotation(math::fvec3{0, 1, 0}, hit_normal);
                    
                    ctx.entity_registry->patch<scene_component>
                    (
                        worker_eid,
                        [&](auto& component)
                        {
                            component.object->set_translation(translation);
                            component.object->set_rotation(rotation);
                        }
                    );
                    
                    debug::log_info("hit! test count: {}", test_count);
                }
                else
                {
                    debug::log_info("no hit");
                }
            }
        )
    );
    
    // Disable mouse grip
    action_subscriptions.emplace_back
    (
        ctx.mouse_grip_action.get_deactivated_channel().subscribe
        (
            [&](const auto& event)
            {
                mouse_grip = false;
                ctx.input_manager->set_relative_mouse_mode(mouse_look || mouse_grip || mouse_zoom);
            }
        )
    );
    */
    
    // Mouse look
    mouse_motion_subscription = ctx.input_manager->get_event_dispatcher().subscribe<input::mouse_moved_event>
    (
        std::bind_front(&nest_view_state::handle_mouse_motion, this)
    );
    
    
    // Move back
    action_subscriptions.emplace_back
    (
        ctx.move_back_action.get_active_channel().subscribe
        (
            [&](const auto& event)
            {
                translate_third_person_camera({0.0, 0.0, 1.0}, event.input_value / ctx.fixed_update_rate);
                update_third_person_camera();
            }
        )
    );
    
    // Move left
    action_subscriptions.emplace_back
    (
        ctx.move_left_action.get_active_channel().subscribe
        (
            [&](const auto& event)
            {
                // translate_third_person_camera({-1.0, 0.0, 0.0}, event.input_value / ctx.fixed_update_rate);
                // update_third_person_camera();
                
                ctx.entity_registry->patch<::scene_component>
                (
                    worker_eid,
                    [&](auto& component)
                    {
                        auto rotation = math::angle_axis(math::radians(30.0f) * event.input_value / ctx.fixed_update_rate, navmesh_agent_normal);
                        component.object->set_rotation(math::normalize(rotation * component.object->get_rotation()));
                    }
                );
            }
        )
    );
    
    // Move right
    action_subscriptions.emplace_back
    (
        ctx.move_right_action.get_active_channel().subscribe
        (
            [&](const auto& event)
            {
                // translate_third_person_camera({1.0, 0.0, 0.0}, event.input_value / ctx.fixed_update_rate);
                // update_third_person_camera();
                
                ctx.entity_registry->patch<::scene_component>
                (
                    worker_eid,
                    [&](auto& component)
                    {
                        auto rotation = math::angle_axis(math::radians(-30.0f) * event.input_value / ctx.fixed_update_rate, navmesh_agent_normal);
                        component.object->set_rotation(math::normalize(rotation * component.object->get_rotation()));
                    }
                );
            }
        )
    );
    
    // Zoom in
    action_subscriptions.emplace_back
    (
        ctx.move_up_action.get_activated_channel().subscribe
        (
            [&](const auto& event)
            {
                zoom_third_person_camera(1.0 / static_cast<double>(third_person_camera_zoom_step_count));
                update_third_person_camera();
            }
        )
    );
    
    // Zoom out
    action_subscriptions.emplace_back
    (
        ctx.move_down_action.get_activated_channel().subscribe
        (
            [&](const auto& event)
            {
                zoom_third_person_camera(-1.0 / static_cast<double>(third_person_camera_zoom_step_count));
                update_third_person_camera();
            }
        )
    );
}