Basic render loop is taking shape. Digging back into the

raycasting will be slightly annoying

build/RayCaster.cpp

@@ -3,11 +3,10 @@
 #include <Ray.h>
 
 
-RayCaster::RayCaster(Map *map,
+RayCaster::RayCaster(
+	Map *map,
 	sf::Vector3<int> map_dimensions,
-                     sf::Vector2<int> viewport_resolution,
-                     sf::Vector3<float> camera_direction,
-                     sf::Vector3<float> camera_position) {
+    sf::Vector2<int> viewport_resolution ) {
 
 	// Override values
 	//this.map_dimensions = new Vector3<int> (50, 50, 50);
@@ -17,16 +16,12 @@ RayCaster::RayCaster(Map *map,
 
 	
 	this->map_dimensions = map_dimensions;
-	map = map;
+	this->map = map;
 
 	resolution = viewport_resolution;
-	image = new sf::Uint8[resolution.x, resolution.y];
+	image = new sf::Color[resolution.x, resolution.y];
 
 
-	this->camera_direction = camera_direction;
-	camera_direction_cartesian = Normalize(SphereToCart(camera_direction));
-
-	this->camera_position = camera_position;
 
 }
 
@@ -36,7 +31,13 @@ RayCaster::~RayCaster() {
 
 
 
-sf::Uint8* RayCaster::Cast() {
+sf::Color* RayCaster::CastRays(sf::Vector3<float> camera_direction, sf::Vector3<float> camera_position) {
+
+		// Setup the camera for this cast
+		this->camera_direction = camera_direction;
+		camera_direction_cartesian = Normalize(SphereToCart(camera_direction));
+		this->camera_position = camera_position;
+
 
 		// The radian increment each ray is spaced from one another
 		double y_increment_radians = DegreesToRadians(40.0 / resolution.y);

build/RayCaster.h

@@ -7,13 +7,11 @@ class RayCaster {
 public:
 	RayCaster(Map *map,
 			 sf::Vector3<int> map_dimensions,
-			 sf::Vector2<int> viewport_resolution,
-			 sf::Vector3<float> camera_direction,
-			 sf::Vector3<float> camera_position);
+			 sf::Vector2<int> viewport_resolution);
 	~RayCaster();
 
 
-	sf::Uint8* Cast();
+	sf::Color* CastRays(sf::Vector3<float> camera_direction, sf::Vector3<float> camera_position);
 
 private:
 
@@ -24,7 +22,7 @@ private:
 	sf::Vector2<int> resolution;
 
 	// The pixel array, maybe do RBGA? Are there even 4 byte data types?
-	sf::Uint8 *image;
+	sf::Color *image;
 
 	// The direction of the camera in POLAR coordinates
 	sf::Vector3<float> camera_direction;

include/Map.h

@@ -6,14 +6,15 @@ class Map {
 public: 
 	Map(sf::Vector3i dim) {
 		list = new char[dim.x * dim.y * dim.z];
+		dimensions = dim;
 	}
 
 	~Map() {
 	}
 
-	sf::Vector3<int> getDimensions();
+	sf::Vector3i getDimensions();
 	char *list;
-
+	sf::Vector3i dimensions;
 
 protected:
 

src/Map.cpp

@@ -3,6 +3,6 @@
 #include <iostream>
 #include <SFML/System/Vector3.hpp>
 
-sf::Vector3<int> Map::getDimensions() {
-	throw std::logic_error("The method or operation is not implemented.");
+sf::Vector3i Map::getDimensions() {
+	return dimensions;
 }

src/main.cpp

@@ -3,6 +3,7 @@
 #include <string>
 #include <chrono>
 #include "util.hpp"
+#include "../build/RayCaster.h"
 
 const int WINDOW_X = 600;
 const int WINDOW_Y = 800;
@@ -22,12 +23,10 @@ float elap_time(){
 	return elapsed_time.count();
 }
 
-int main() {
-
-	
-	sf::Uint8 c;
-	std::cout << sizeof(c);
+sf::Sprite window_sprite;
+sf::Texture window_texture;
 
+int main() {
 
 	// Initialize the render window
 	sf::RenderWindow window(sf::VideoMode(WINDOW_X, WINDOW_Y), "SFML");
@@ -45,6 +44,25 @@ int main() {
 
 	fps_counter fps;
 
+	// ============================= RAYCASTER SETUP ==================================
+	
+	// Setup the sprite and texture
+	window_texture.create(WINDOW_X, WINDOW_Y);
+	window_sprite.setPosition(0, 0);
+
+	// State values
+	sf::Vector3i map_dim(100, 100, 100);
+	sf::Vector2i view_res(200, 200);
+	sf::Vector3f cam_dir(1.0f, 0.0f, 1.57f);
+	sf::Vector3f cam_pos(10, 10, 10);
+
+	Map* map = new Map(map_dim);
+	RayCaster ray_caster(map, map_dim, view_res);
+
+
+	// ===============================================================================
+
+
 	while (window.isOpen()) {
 
 		// Poll for events from the user
@@ -86,9 +104,20 @@ int main() {
 		}
 
 		
-		// Rendering code goes here
 		window.clear(sf::Color::Black);
 
+		// Cast the rays and get the image
+		sf::Color* pixel_colors = ray_caster.CastRays(cam_dir, cam_pos);
+
+		/*for (int i = 0; i < img_size; i++) {
+			pixel_colors[i] = sf::Color::Green;
+		}*/
+
+		auto out = (sf::Uint8*)pixel_colors;
+		window_texture.update(out);
+		window_sprite.setTexture(window_texture);
+		window.draw(window_sprite);
+
 		// Give the frame counter the frame time and draw the average frame time
 		fps.frame(delta_time);
 		fps.draw(&window);