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#pragma once
#include <SFML/System/Vector3.hpp>
#include <SFML/System/Vector2.hpp>
#include <Map.h>
#include "Old_map.h"
#include "Camera.h"
class RayCaster {
public:
enum ERROR_CODES {
SHARING_NOT_SUPPORTED = 800,
OPENCL_NOT_SUPPORTED = 801,
OPENCL_ERROR = 802,
ERROR = 803
};
RayCaster();
virtual ~RayCaster();
virtual int init() = 0;
virtual void assign_map(Old_Map *map) = 0;
virtual void assign_camera(Camera *camera) = 0;
virtual void create_viewport(int width, int height, float v_fov, float h_fov) = 0;
virtual void assign_light(Light light) = 0;
// draw will abstract the gl sharing and software rendering
// methods of retrieving the screen buffer
virtual void draw(sf::RenderWindow* window) = 0;
protected:
sf::Sprite viewport_sprite;
sf::Texture viewport_texture;
// A reference to the map
Old_Map *map;
// The XY resolution of the viewport
sf::Vector2<int> resolution;
// The pixel array, maybe do RBGA? Are there even 4 byte data types?
sf::Color *image;
// The direction of the camera in POLAR coordinates
sf::Vector3<float> camera_direction;
// Convert the polar coordinates to CARTESIAN
sf::Vector3<float> camera_direction_cartesian;
// The world-space position of the camera
sf::Vector3<float> camera_position;
// The distance in units the view plane is from the iris point
int view_plane_distance = 200;
// Precalculated values for the view plane rays
sf::Vector3f *view_plane_vectors;
};