💿🐜 Antkeeper source code
https://antkeeper.com
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120 lines
3.3 KiB
120 lines
3.3 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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#ifndef ANTKEEPER_ORBIT_CAM_HPP
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#define ANTKEEPER_ORBIT_CAM_HPP
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#include "camera-rig.hpp"
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#include "animation/spring.hpp"
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#include <array>
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/**
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* Rig which orbits around a focal point.
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*/
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class orbit_cam: public camera_rig
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{
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public:
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orbit_cam();
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virtual ~orbit_cam();
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virtual void update(float dt);
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/// @param direction Specifies the movement direction and speed scale on the XZ plane
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void move(const float3& translation);
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void pan(float angle);
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void tilt(float angle);
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void zoom(float factor);
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void reset_springs();
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void set_aspect_ratio(float ratio);
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void set_focal_point(const float3& point);
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void set_azimuth(float angle);
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void set_elevation(float angle);
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void set_zoom(float factor);
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void set_target_focal_point(const float3& point);
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void set_target_azimuth(float angle);
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void set_target_elevation(float angle);
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void set_target_zoom(float factor);
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void set_azimuth_limits(const std::array<float, 2>& limits);
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void set_elevation_limits(const std::array<float, 2>& limits);
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void set_focal_distance_limits(const std::array<float, 2>& limits);
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void set_fov_limits(const std::array<float, 2>& limits);
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void set_clip_near_limits(const std::array<float, 2>& limits);
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void set_clip_far_limits(const std::array<float, 2>& limits);
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const float3& get_focal_point() const;
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float get_azimuth() const;
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float get_elevation() const;
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float get_zoom() const;
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const quaternion_type& get_azimuth_rotation() const;
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const quaternion_type& get_elevation_rotation() const;
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private:
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float aspect_ratio;
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numeric_spring<float3, float> focal_point_spring;
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numeric_spring<float, float> azimuth_spring;
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numeric_spring<float, float> elevation_spring;
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numeric_spring<float, float> zoom_spring;
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std::array<float, 2> azimuth_limits;
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std::array<float, 2> elevation_limits;
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std::array<float, 2> focal_distance_limits;
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std::array<float, 2> fov_limits;
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std::array<float, 2> clip_near_limits;
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std::array<float, 2> clip_far_limits;
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quaternion_type azimuth_rotation;
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quaternion_type elevation_rotation;
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};
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inline const float3& orbit_cam::get_focal_point() const
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{
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return focal_point_spring.x0;
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}
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inline float orbit_cam::get_azimuth() const
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{
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return azimuth_spring.x0;
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}
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inline float orbit_cam::get_elevation() const
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{
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return elevation_spring.x0;
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}
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inline float orbit_cam::get_zoom() const
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{
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return zoom_spring.x0;
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}
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inline const typename camera_rig::quaternion_type& orbit_cam::get_azimuth_rotation() const
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{
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return azimuth_rotation;
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}
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inline const typename camera_rig::quaternion_type& orbit_cam::get_elevation_rotation() const
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{
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return elevation_rotation;
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}
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#endif // ANTKEEPER_ORBIT_CAM_HPP
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