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- /*
- * Copyright (C) 2020 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/>.
- */
-
- #ifndef ANTKEEPER_CAMERA_RIG_HPP
- #define ANTKEEPER_CAMERA_RIG_HPP
-
- #include "math/quaternion-type.hpp"
- #include "math/transform-type.hpp"
- #include "utility/fundamental-types.hpp"
-
- class camera;
-
- /**
- * Abstract base class for camera rigs which control the movement of cameras.
- */
- class camera_rig
- {
- public:
- typedef math::quaternion<float> quaternion_type;
- typedef math::transform<float> transform_type;
-
- camera_rig();
-
- /**
- * Updates the rig.
- *
- * @param dt Delta time.
- */
- virtual void update(float dt) = 0;
-
- /**
- * Attaches a camera to the rig.
- *
- * @param camera Camera to attach.
- */
- void attach(::camera* camera);
-
- /**
- * Detaches the camera from the rig.
- */
- void detach();
-
-
-
- /**
- * Returns the attached camera.
- */
- const ::camera* get_camera() const;
-
- const float3& get_translation() const;
- const quaternion_type& get_rotation() const;
- const float3& get_forward() const;
- const float3& get_right() const;
- const float3& get_up() const;
-
- protected:
- /**
- * Updates the transform of the camera
- */
- void update_transform(const transform_type& transform);
-
- void update_projection(float fov, float aspect_ratio, float clip_near, float clip_far);
- void update_projection(float clip_left, float clip_right, float clip_bottom, float clip_top, float clip_near, float clip_far);
-
- private:
- camera* camera;
- transform_type transform;
- float3 forward;
- float3 right;
- float3 up;
- };
-
- inline const camera* camera_rig::get_camera() const
- {
- return camera;
- }
-
- inline const float3& camera_rig::get_translation() const
- {
- return transform.translation;
- }
-
- inline const typename camera_rig::quaternion_type& camera_rig::get_rotation() const
- {
- return transform.rotation;
- }
-
- inline const float3& camera_rig::get_forward() const
- {
- return forward;
- }
-
- inline const float3& camera_rig::get_right() const
- {
- return right;
- }
-
- inline const float3& camera_rig::get_up() const
- {
- return up;
- }
-
- #endif // ANTKEEPER_CAMERA_RIG_HPP
-
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