💿🐜 Antkeeper source code
https://antkeeper.com
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120 lines
2.7 KiB
120 lines
2.7 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_CAMERA_RIG_HPP
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#define ANTKEEPER_CAMERA_RIG_HPP
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#include "math/quaternion-type.hpp"
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#include "math/transform-type.hpp"
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#include "utility/fundamental-types.hpp"
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class camera;
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/**
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* Abstract base class for camera rigs which control the movement of cameras.
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*/
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class camera_rig
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{
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public:
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typedef math::quaternion<float> quaternion_type;
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typedef math::transform<float> transform_type;
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camera_rig();
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/**
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* Updates the rig.
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*
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* @param dt Delta time.
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*/
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virtual void update(float dt) = 0;
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/**
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* Attaches a camera to the rig.
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*
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* @param camera Camera to attach.
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*/
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void attach(::camera* camera);
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/**
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* Detaches the camera from the rig.
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*/
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void detach();
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/**
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* Returns the attached camera.
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*/
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const ::camera* get_camera() const;
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const float3& get_translation() const;
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const quaternion_type& get_rotation() const;
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const float3& get_forward() const;
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const float3& get_right() const;
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const float3& get_up() const;
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protected:
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/**
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* Updates the transform of the camera
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*/
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void update_transform(const transform_type& transform);
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void update_projection(float fov, float aspect_ratio, float clip_near, float clip_far);
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void update_projection(float clip_left, float clip_right, float clip_bottom, float clip_top, float clip_near, float clip_far);
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private:
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camera* camera;
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transform_type transform;
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float3 forward;
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float3 right;
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float3 up;
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};
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inline const camera* camera_rig::get_camera() const
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{
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return camera;
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}
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inline const float3& camera_rig::get_translation() const
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{
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return transform.translation;
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}
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inline const typename camera_rig::quaternion_type& camera_rig::get_rotation() const
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{
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return transform.rotation;
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}
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inline const float3& camera_rig::get_forward() const
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{
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return forward;
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}
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inline const float3& camera_rig::get_right() const
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{
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return right;
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}
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inline const float3& camera_rig::get_up() const
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{
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return up;
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}
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#endif // ANTKEEPER_CAMERA_RIG_HPP
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