webgl1es2_camera.h

// © Joseph Cameron - All Rights Reserved
 
#ifndef GDK_GFX_WEBGL1ES2_CAMERA_H
#define GDK_GFX_WEBGL1ES2_CAMERA_H
 
#include <gdk/camera.h>
#include <gdk/color.h>
#include <gdk/graphics_types.h>
#include <gdk/webgl1es2_texture.h>
#include <jfc/unique_handle.h>
 
#include <memory>
#include <vector>
 
namespace gdk
{
    class entity;

    class webgl1es2_camera
    {
    public:
    //
        graphics_matrix4x4_type get_world_matrix() const;

        graphics_matrix4x4_type get_view_matrix() const;

        graphics_matrix4x4_type get_projection_matrix() const;

        webgl1es2_camera(const webgl1es2_camera& a) = default;
        webgl1es2_camera& operator=(const webgl1es2_camera & a) = default;

        webgl1es2_camera(webgl1es2_camera&&) = default;
        webgl1es2_camera& operator=(webgl1es2_camera && a) = default;

        webgl1es2_camera();
 
        virtual ~webgl1es2_camera() = default;
 
    protected:
    //
        void set_perspective_projection(const float aFieldOfView,
            const float aNearClippingPlane,
            const float aFarClippingPlane,
            const float aViewportAspectRatio);
 
        void set_orthographic_projection(const float aWidth,
            const float aHeight,
            const float aNearClippingPlane,
            const float aFarClippingPlane,
            const float aViewportAspectRatio);
 
        void set_clear_color(const gdk::color& acolor);
 
        void set_clear_mode(const gdk::camera::clear_mode aClearMode);
 
        void set_transform(const gdk::graphics_vector3_type& aWorldPos, 
            const gdk::graphics_quaternion_type& aRotation);
        void set_transform(const gdk::graphics_matrix4x4_type &aMatrix);
   
        void activate_clear_mode() const;
 
        camera::clear_mode get_clearmode() const;
 
        gdk::color get_clearcolor() const;
 
    private:
        graphics_matrix4x4_type m_WorldMatrix = graphics_matrix4x4_type::identity; 
        graphics_matrix4x4_type m_ViewMatrix = graphics_matrix4x4_type::identity; 
        graphics_matrix4x4_type m_ProjectionMatrix = graphics_matrix4x4_type::identity; 
 
        gdk::camera::clear_mode m_ClearMode = gdk::camera::clear_mode::color_and_depth;
        gdk::color m_ClearColor = color::cornflower_blue;
    };
}
 
#endif