Working on a messaging system for sf events

include/Camera.h

@@ -2,8 +2,9 @@
 #include <SFML/System/Vector3.hpp>
 #include <SFML/System/Vector2.hpp>
 #include "util.hpp"
+#include "Pub_Sub.hpp"
 
-class Camera {
+class Camera : public SfEventSubscriber{
 public:
 
 	enum DIRECTION { FORWARD, REARWARD, LEFT, RIGHT, UP, DOWN };
@@ -33,6 +34,9 @@ public:
 	sf::Vector3f get_position();
 	sf::Vector2f get_direction();
 
+
+	virtual void update(SfEventPublisher* p, sf::Event e) override;
+
 private:
 
 	float friction_coefficient = 0.1f;

include/Input.h

@@ -0,0 +1,30 @@
+#pragma once
+#include <SFML/Graphics.hpp>
+#include <list>
+#include "Pub_Sub.hpp"
+
+
+class Input : public SfEventPublisher {
+public:
+	
+	Input();
+	~Input();
+
+	// Keep track of keys that are not released
+	// Keep track of mouse up and downs in conjunction with dragging
+	// Keep track of joystick buttons
+
+	void consume_events(sf::RenderWindow *window);
+	void set_flags();
+	void dispatch_events();
+	
+private:
+	std::vector<sf::Keyboard::Key> held_keys;
+	std::vector<sf::Mouse::Button> held_mouse_buttons;
+	
+	std::vector<bool> keyboard_flags;
+	std::vector<bool> mouse_flags;
+
+private:
+	std::list<sf::Event> event_queue;
+};

include/Pub_Sub.hpp

@@ -0,0 +1,133 @@
+#pragma once
+#include <SFML/Graphics.hpp>
+
+
+class SfEventPublisher;
+
+class SfEventSubscriber {
+public:
+	virtual ~SfEventSubscriber() {};
+	virtual void update(SfEventPublisher* p, sf::Event e) = 0;
+};
+
+class SfEventPublisher {
+public:
+
+	// Allows the subscription to classes of events
+	enum Event_Class {
+		JoystickButtonEvent,
+		JoystickConnectEvent,
+		JoystickMoveEvent,
+		KeyEvent,
+		MouseButtonEvent,
+		MouseMoveEvent,
+		MouseWheelEvent,
+		MouseWheelScrollEvent,
+		SensorEvent,
+		SizeEvent,
+		TextEvent,
+		TouchEvent,
+		WindowEvent
+	};
+
+	virtual ~SfEventPublisher() {};
+	virtual void subscribe(SfEventSubscriber *s, Event_Class c) {
+		subscribers[c].push_back(s);
+	};
+	virtual void unsubscribe(SfEventSubscriber *s, Event_Class c) {
+		std::remove(subscribers[c].begin(), subscribers[c].end(), s);
+	};
+	virtual void notify(sf::Event e) {
+
+		// I don't quite like that some event classes contained multiple types of events:
+		// KeyPressed, and KeyReleased under KeyEvent for example.
+		// While others are not represented by classes:
+		// Closed, LostFocus, and GainedFocus have no representing class.
+		// So, we'll add another "class", WindowEvent which contains those previously mentioned,
+		// and use those new identifiers to group our events
+
+		// This will also make it a bit easier when subscribing to certain events
+
+		Event_Class event_class;
+
+		if (e.type == sf::Event::Closed      ||
+			e.type == sf::Event::LostFocus   ||
+			e.type == sf::Event::GainedFocus ){
+
+			event_class = Event_Class::WindowEvent;
+		}
+
+		// Preserve a little of sfml's default behavior and separate resized event
+		else if (e.type == sf::Event::Resized) {
+			event_class = Event_Class::SizeEvent;
+		}
+
+		else if (e.type == sf::Event::TextEntered) {
+			event_class = Event_Class::TextEvent;
+		}
+
+		else if (e.type == sf::Event::KeyPressed  ||
+				 e.type == sf::Event::KeyReleased ){
+
+			event_class = Event_Class::KeyEvent;
+		}
+
+		else if (e.type == sf::Event::MouseWheelMoved    ||
+				 e.type == sf::Event::MouseWheelScrolled ){
+
+			event_class = Event_Class::MouseWheelScrollEvent;
+		}
+
+		else if (e.type == sf::Event::MouseButtonPressed  ||
+				 e.type == sf::Event::MouseButtonReleased ){
+
+			event_class = Event_Class::MouseButtonEvent;
+		}
+
+		// Is this a good idea, mixing events that contain data, and don't contain data?
+		else if (e.type == sf::Event::MouseMoved   ||
+				 e.type == sf::Event::MouseEntered ||
+				 e.type == sf::Event::MouseLeft    ){
+
+			event_class = Event_Class::MouseMoveEvent;
+		}
+
+		else if (e.type == sf::Event::JoystickButtonPressed  ||
+				 e.type == sf::Event::JoystickButtonReleased ){
+
+			event_class = Event_Class::JoystickButtonEvent;
+		}
+
+		else if (e.type == sf::Event::JoystickMoved) {
+			event_class = Event_Class::JoystickMoveEvent;
+		}
+
+		else if (e.type == sf::Event::JoystickConnected    ||
+				 e.type == sf::Event::JoystickDisconnected ){
+
+			event_class = Event_Class::JoystickConnectEvent;
+		}
+
+		else if (e.type == sf::Event::TouchBegan ||
+				 e.type == sf::Event::TouchEnded ||
+				 e.type == sf::Event::TouchMoved ){
+			
+			event_class = Event_Class::TouchEvent;
+		}
+
+		else if (e.type == sf::Event::SensorChanged) {
+			event_class = Event_Class::SensorEvent;
+		}
+
+
+		std::vector<SfEventSubscriber*> *event_type_bucket = &subscribers[event_class];
+
+		for (auto s : *event_type_bucket) {
+			s->update(this, e);
+		}
+	};
+private:
+	std::map<Event_Class, std::vector<SfEventSubscriber*>> subscribers;
+
+};
+

include/util.hpp

@@ -1,13 +1,12 @@
 #pragma once
 #include <SFML/Graphics.hpp>
-#include <iostream>
+#include "Vector4.hpp"
 #include <math.h>
+#include <bitset>
+#include <iostream>
 #include <fstream>
 #include <sstream>
-#include "Vector4.hpp"
-#include <bitset>
 #include <string>
-#include <math.h>
 #include <iterator>
 
 

kernels/ray_caster_kernel.cl

@@ -99,12 +99,13 @@ __kernel void raycaster(
 		global int* seed_memory
 ){
 
-
+	// Get and set the random seed from seed memory
-	int global_id = get_global_id(1) * get_global_size(0) + get_global_id(0);
+	int global_id = get_global_id(0);
 	int seed = seed_memory[global_id];
 	int random_number = rand(&seed);
 	seed_memory[global_id] = seed;
 
+
     size_t id = get_global_id(0);
     int2 pixel = {id % (*resolution).x, id / (*resolution).x};
     float3 ray_dir = projection_matrix[pixel.x + (*resolution).x * pixel.y];

src/Camera.cpp

@@ -86,18 +86,14 @@ int Camera::update(double delta_time) {
 	return 1;
 }
 
-void Camera::look_at_center() {
+void Camera::update(SfEventPublisher* p, sf::Event e)
-	//std::cout << "X:" << position.x << std::endl;
+{
-	//std::cout << "Y:" << position.y << std::endl;
-	//std::cout << "Z:" << position.z << std::endl;
 
-	//std::cout << "dx:" << direction.x << std::endl;
+}
-	//std::cout << "dy:" << direction.y << std::endl;
 
-	direction = CartToNormalizedSphere(sf::Vector3f(75, 75, 75) - position);
+void Camera::look_at_center() {
 
-	//std::cout << "dx:" << direction.x << std::endl;
+	direction = CartToNormalizedSphere(sf::Vector3f(75, 75, 75) - position);
-	//std::cout << "dy:" << direction.y << std::endl;
 
 }
 

src/Input.cpp

@@ -0,0 +1,43 @@
+#include "Input.h"
+
+
+Input::Input() :
+	keyboard_flags(sf::Keyboard::Key::KeyCount, false),
+	mouse_flags(sf::Mouse::Button::ButtonCount, false)
+{
+
+}
+
+Input::~Input()
+{
+
+}
+
+void Input::consume_events(sf::RenderWindow *window) {
+
+	sf::Event e;
+	while (window->pollEvent(e)) {
+		event_queue.push_back(e);
+	}
+
+}
+
+void Input::set_flags() {
+
+	for (auto e: event_queue) {
+		if (e.type == sf::Event::KeyPressed) {
+			held_keys.push_back(e.key.code);
+		}
+		else if (e.type == sf::Event::KeyReleased) {
+			std::remove(held_keys.begin(), held_keys.end(), e.key.code);
+		}
+	}
+}
+
+void Input::dispatch_events() {
+
+	while (event_queue.size() != 0) {
+		notify(event_queue.front());
+		event_queue.pop_front();
+	}
+}

src/Ray.cpp

@@ -131,11 +131,11 @@ sf::Color Ray::Cast() {
 
         switch (voxel_data) {
             case 5:
-                return sf::Color(255, 120, 255, alpha);
+                return sf::Color(255, 120, 255, static_cast<int>(alpha));
             case 6:
-                return sf::Color(150, 80, 220, alpha);
+                return sf::Color(150, 80, 220, static_cast<int>(alpha));
 			default:
-				return sf::Color(150, 80, 220, alpha);
+				return sf::Color(150, 80, 220, static_cast<int>(alpha));
         }
 
         dist++;

src/Software_Caster.cpp

@@ -328,7 +328,7 @@ sf::Color Software_Caster::global_light(sf::Color in, sf::Vector3i mask) {
 
 	sf::Vector3f mask_f(mask);
 
-	in.a = in.a + acos(
+	in.a = in.a + (int)acos(
 				DotProduct(
 					Normalize(lights.at(0).direction_cartesian),
 					Normalize(mask_f)

src/main.cpp

@@ -5,6 +5,9 @@
 
 #elif defined _WIN32
 #include <windows.h>
+
+// As if hardware is ever going to move away from 1.2
+#define CL_USE_DEPRECATED_OPENCL_1_2_APIS
 #include <CL/cl.h>
 #include <CL/opencl.h>
 
@@ -32,6 +35,7 @@
 #include "Vector4.hpp"
 #include <Camera.h>
 #include "Software_Caster.h"
+#include "Input.h"
 
 
 const int WINDOW_X = 1920;
@@ -79,20 +83,14 @@ int main() {
 	t.create_program();
 	t.create_buffers();
 
-	// Initialize the raycaster hardware, compat, or software
+
 	RayCaster *rc = new Hardware_Caster();
-	//RayCaster *rc = new Software_Caster();
+
 	if (rc->init() != 1) {
-		delete rc;
+		abort();
-		// rc = new Hardware_Caster_Compat();
-		// if (rc->init() != 0) {
-		//		delete rc;
-		//		rc = new Software_Caster();
-		// }
 	}
 
 	// Set up the raycaster
-
 	std::cout << "map...";
 	sf::Vector3i map_dim(MAP_X, MAP_Y, MAP_Z);
 	Old_Map* map = new Old_Map(map_dim);
@@ -147,8 +145,15 @@ int main() {
 	bool mouse_enabled = true;
 	bool reset = false;
 
+
+	Input input_handler;
+	input_handler.subscribe(camera, SfEventPublisher::Event_Class::KeyEvent);
+	window.setKeyRepeatEnabled(false);
+
 	while (window.isOpen()) {
 
+		input_handler.consume_events(&window);
+		input_handler.set_flags();
 		// Poll for events from the user
 		sf::Event event;
 		while (window.pollEvent(event)) {
@@ -156,6 +161,15 @@ int main() {
 			if (event.type == sf::Event::Closed)
 				window.close();
 
+			if (event.type == sf::Event::KeyPressed) {
+				std::cout << event.key.code << std::endl;
+			}
+			if (event.type == sf::Event::KeyReleased) {
+				std::cout << event.key.code << std::endl;
+			}
+
+
+
 			if (event.type == sf::Event::KeyPressed) {
 				if (event.key.code == sf::Keyboard::M) {
 					if (mouse_enabled)