💿🐜 Antkeeper source code
https://antkeeper.com
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246 lines
7.4 KiB
246 lines
7.4 KiB
/*
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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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#include "control-system.hpp"
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#include "input/control.hpp"
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#include "scene/camera.hpp"
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#include "geometry/intersection.hpp"
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#include "animation/ease.hpp"
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#include "nest.hpp"
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#include "math/math.hpp"
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#include "game/entity-commands.hpp"
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#include "game/systems/camera-system.hpp"
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#include "animation/orbit-cam.hpp"
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control_system::control_system(entt::registry& registry):
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entity_system(registry),
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timestep(0.0f),
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zoom(0.0f),
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tool(nullptr),
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flashlight_eid(entt::null),
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underworld_camera(nullptr)
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{
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control_set.add_control(&move_forward_control);
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control_set.add_control(&move_back_control);
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control_set.add_control(&move_right_control);
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control_set.add_control(&move_left_control);
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control_set.add_control(&rotate_ccw_control);
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control_set.add_control(&rotate_cw_control);
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control_set.add_control(&tilt_up_control);
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control_set.add_control(&tilt_down_control);
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control_set.add_control(&zoom_in_control);
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control_set.add_control(&zoom_out_control);
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control_set.add_control(&adjust_camera_control);
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control_set.add_control(&ascend_control);
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control_set.add_control(&descend_control);
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control_set.add_control(&toggle_view_control);
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control_set.add_control(&tool_menu_control);
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control_set.add_control(&equip_lens_control);
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control_set.add_control(&equip_brush_control);
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control_set.add_control(&equip_forceps_control);
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control_set.add_control(&equip_marker_control);
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control_set.add_control(&equip_container_control);
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control_set.add_control(&equip_twig_control);
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control_set.add_control(&next_marker_control);
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control_set.add_control(&previous_marker_control);
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control_set.add_control(&use_tool_control);
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control_set.add_control(&fast_forward_control);
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control_set.add_control(&rewind_control);
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// Set deadzone at 15% for all controls
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const std::list<control*>* controls = control_set.get_controls();
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for (control* control: *controls)
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{
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control->set_deadzone(0.15f);
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}
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zoom_speed = 5.0f; //1
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min_elevation = math::radians(-85.0f);
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max_elevation = math::radians(85.0f);
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near_focal_distance = 2.0f;
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far_focal_distance = 200.0f;
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near_movement_speed = 10.0f;
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far_movement_speed = 80.0f;
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near_fov = math::radians(80.0f);
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far_fov = math::radians(35.0f);
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near_clip_near = 0.1f;
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far_clip_near = 5.0f;
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near_clip_far = 100.0f;
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far_clip_far = 2000.0f;
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nest = nullptr;
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mouse_angle = 0.0f;
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old_mouse_angle = mouse_angle;
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flashlight_turns = 0.0f;
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flashlight_turns_i = 0;
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flashlight_turns_f = 0.0f;
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}
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void control_system::update(double t, double dt)
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{
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timestep = dt;
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// Zoom camera
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if (zoom_in_control.is_active())
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camera_system->zoom(zoom_speed * dt);
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if (zoom_out_control.is_active())
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camera_system->zoom(-zoom_speed * dt);
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// Rotate camera
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const float rotation_speed = math::radians(270.0f);
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if (rotate_ccw_control.is_active())
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camera_system->pan(rotation_speed * dt * std::min<float>(1.0f, rotate_ccw_control.get_current_value()));
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if (rotate_cw_control.is_active())
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camera_system->pan(-rotation_speed * dt * std::min<float>(1.0f, rotate_cw_control.get_current_value()));
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// Move camera
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float3 movement{0.0f, 0.0f, 0.0f};
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if (move_right_control.is_active())
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movement.x += move_right_control.get_current_value();
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if (move_left_control.is_active())
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movement.x -= move_left_control.get_current_value();
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if (move_forward_control.is_active())
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movement.z -= move_forward_control.get_current_value();
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if (move_back_control.is_active())
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movement.z += move_back_control.get_current_value();
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if (math::length_squared(movement) != 0.0f)
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{
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std::array<float, 2> speed_limits = {15.0f, 100.0f};
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float zoom = camera_system->get_orbit_cam()->get_zoom();
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float max_speed = math::log_lerp(speed_limits[1], speed_limits[0], zoom) * dt;
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float speed = std::min<float>(max_speed, math::length(movement * max_speed));
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movement = math::normalize(movement) * speed;
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const math::quaternion<float>& azimuth_rotation = camera_system->get_orbit_cam()->get_azimuth_rotation();
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movement = azimuth_rotation * movement;
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ec::translate(registry, camera_subject_eid, movement);
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}
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// Turn flashlight
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float2 viewport_center = {(viewport[0] + viewport[2]) * 0.5f, (viewport[1] + viewport[3]) * 0.5f};
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float2 mouse_direction = math::normalize(mouse_position - viewport_center);
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old_mouse_angle = mouse_angle;
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mouse_angle = std::atan2(-mouse_direction.y, mouse_direction.x);
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if (mouse_angle - old_mouse_angle != 0.0f)
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{
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if (mouse_angle - old_mouse_angle <= -math::pi<float>)
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flashlight_turns_i -= 1;
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else if (mouse_angle - old_mouse_angle >= math::pi<float>)
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flashlight_turns_i += 1;
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flashlight_turns_f = (mouse_angle) / math::two_pi<float>;
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flashlight_turns = flashlight_turns_i - flashlight_turns_f;
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if (flashlight_eid != entt::null && nest)
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{
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math::transform<float> flashlight_transform = math::identity_transform<float>;
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float flashlight_depth = nest->get_shaft_depth(*nest->get_central_shaft(), flashlight_turns);
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flashlight_transform.translation = {0.0f, -flashlight_depth, 0.0f};
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flashlight_transform.rotation = math::angle_axis(-flashlight_turns * math::two_pi<float> + math::half_pi<float>, {0, 1, 0});
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ec::set_transform(registry, flashlight_eid, flashlight_transform, false);
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if (underworld_camera)
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{
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underworld_camera->look_at({0, -flashlight_depth + 50.0f, 0}, {0, -flashlight_depth, 0}, {0, 0, -1});
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}
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}
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}
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}
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void control_system::set_camera_system(::camera_system* camera_system)
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{
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this->camera_system = camera_system;
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}
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void control_system::set_nest(::nest* nest)
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{
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this->nest = nest;
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}
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void control_system::set_tool(model_instance* tool)
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{
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this->tool = tool;
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}
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void control_system::set_flashlight(entt::entity eid)
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{
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flashlight_eid = eid;
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}
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void control_system::set_camera_subject(entt::entity eid)
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{
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camera_subject_eid = eid;
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}
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void control_system::set_viewport(const float4& viewport)
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{
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this->viewport = viewport;
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}
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void control_system::set_underworld_camera(::camera* camera)
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{
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this->underworld_camera = camera;
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}
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void control_system::handle_event(const mouse_moved_event& event)
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{
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if (adjust_camera_control.is_active())
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{
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bool invert_x = true;
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bool invert_y = false;
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float rotation_factor = event.dx;
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float elevation_factor = event.dy;
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if (invert_x)
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{
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rotation_factor *= -1.0f;
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}
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if (invert_y)
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{
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elevation_factor *= -1.0f;
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}
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float rotation = math::radians(15.0f) * rotation_factor * timestep;
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float tilt = math::radians(15.0f) * elevation_factor * timestep;
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camera_system->pan(rotation);
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camera_system->tilt(tilt);
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}
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else if (!adjust_camera_control.was_active())
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{
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mouse_position[0] = event.x;
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mouse_position[1] = event.y;
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}
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}
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void control_system::handle_event(const window_resized_event& event)
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{
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set_viewport({0.0f, 0.0f, static_cast<float>(event.w), static_cast<float>(event.h)});
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}
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