our_dick/include/egn/object.hpp

79 lines
2.4 KiB
C++

/**
This file is a part of our_dick
Copyright (C) 2020 rexy712
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OUR_DICK_ENGINE_OBJECT_HPP
#define OUR_DICK_ENGINE_OBJECT_HPP
#include <rml/math.hpp>
#include "base_types.hpp"
namespace egn{
class object
{
protected:
enum update{
NO_UPDATE,
SCALE_UPDATE = 1,
TRANSLATION_UPDATE = 2,
ROTATION_UPDATE = 4,
BOUNDING_VOLUME_UPDATE = 8,
};
protected:
rml::vec3f m_position; //track current positon in world space
rml::quat_f m_orientation; //track current model space rotation
rml::vec3f m_scale{1.0f, 1.0f, 1.0f}; //track model space scale
private:
mutable rml::mat4f m_model_matrix; //compile all the above info into a matrix
protected:
mutable int m_update_flag = NO_UPDATE; //whether or not to update the matrix upon access
//make the update flag protected so subclasses can share it
public:
object(void) = default;
explicit object(const rml::vec3f& position);
object(const rml::vec3f& position, const rml::quat_f& orientation);
object(const object&) = default;
object(object&&) = default;
virtual ~object(void) = default;
object& operator=(const object&) = default;
object& operator=(object&&) = default;
void translate(const rml::vec3f& distance);
void rotate(const rml::quat_f& distance);
void scale(const rml::vec3f& distance);
void look_at(const rml::vec3f& targ, const rml::vec3f& up);
virtual void set_position(const rml::vec3f& pos);
virtual void set_orientation(const rml::quat_f& orient);
virtual void set_scale(const rml::vec3f& scale);
const rml::mat4f& model_matrix(void)const;
const rml::vec3f& position(void)const;
const rml::vec3f& scale(void)const;
const rml::quat_f& orientation(void)const;
protected:
void recalc_model_matrix(void)const;
};
}
#endif