Camera.hpp

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#ifndef CAMERA_H
#define CAMERA_H
 
#include <glm/glm.hpp>
#include <glm/gtc/matrix_transform.hpp>
 
namespace engine::graphics {
    class Camera {
    public:
        enum Movement {
            None,
            FORWARD,
            BACKWARD,
            LEFT,
            RIGHT,
            UP,
            DOWN
        };
 
        static constexpr float YAW         = -90.0f;
        static constexpr float PITCH       = 0.0f;
        static constexpr float SPEED       = 2.5f;
        static constexpr float SENSITIVITY = 0.1f;
        static constexpr float ZOOM        = 45.0f;
 
        glm::vec3 Position{};
 
        glm::vec3 Front{};
 
        glm::vec3 Up{};
 
        glm::vec3 Right{};
 
        glm::vec3 WorldUp{};
 
        float Yaw{};
        float Pitch{};
 
        float MovementSpeed{};
 
        float MouseSensitivity{};
 
        float Zoom{};
 
        explicit Camera(glm::vec3 position = glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3 up = glm::vec3(0.0f, 1.0f, 0.0f),
                        float yaw          = YAW, float pitch                          = PITCH);
 
        Camera(float posX, float posY, float posZ, float upX, float upY, float upZ, float yaw, float pitch);
 
        glm::mat4 view_matrix() const;
 
        void move_camera(Movement direction, float deltaTime);
 
        void rotate_camera(float x_offset, float y_offset, bool constrainPitch = true);
 
        void zoom(float offset);
 
    private:
        void update_camera_vectors();
    };
}
#endif