added relative camera controls, now handles like an actual fly cam.

include/Camera.h

@@ -19,10 +19,11 @@ public:
 
 	int slew_camera(sf::Vector2f input);
 
-	int update();
+	int update(double delta_time);
 
-	void* get_direction_pointer();
+	sf::Vector2f* get_direction_pointer();
-	void* get_position_pointer();
+	sf::Vector3f* get_position_pointer();
+	sf::Vector3f* get_movement_pointer();
 
 	sf::Vector3f get_movement();
 	sf::Vector3f get_position();

include/Map.h

@@ -6,10 +6,68 @@
 #include <iostream>
 #include <functional>
 #include <cmath>
+#include <deque>
 
 class Map {
 public: 
+
+	// In addition to traversing the voxel hierarchy, we must also be able to
+	// tell which block a given voxel resides in.This is accomplished us -
+	// ing 32 - bit page headers spread amongst the child descriptors.Page
+	// headers are placed at every 8 kilobyte boundary, and each contains
+	// a relative pointer to the block info section.By placing the begin -
+	// ning of the child descriptor array at such a boundary, we can always
+	// find a page header by simply clearing the lowest bits of any child
+	// descriptor pointer.
+	struct page_header {
+		int bitmask;
+	};
+
+	struct leaf_node {
+		long bitmask;
+	};
+
+
+	short scale;
+
+	void generate_octree() {
+
+		uint64_t *octree = new uint64_t[200];
+
+
+		long tree_node = 0;
+
+		std::vector<long> page_array;
+		
+		// Page placed every 8 kilobytes
+		// contains a relative pointer to the block info section
+		uint32_t page = 255;
+		
+		// Child pointer points to the first non-leaf child of this node
+		uint16_t child_pointer = 20;
+
+
+		uint32_t pointer = page | child_pointer;
+
+
+	};
+
 	Map(sf::Vector3i dim) {
+
+		//generate_octree();
+		//return;
+
+
+
+
+
+
+
+
+
+
+
+
 		dimensions = dim;
 		std::mt19937 gen;
 		std::uniform_real_distribution<double> dis(-1.0, 1.0);
@@ -147,14 +205,14 @@ public:
 		}
 
 
-    //    for (int x = 0; x < dim.x / 10; x++) {
+        for (int x = 0; x < dim.x / 10; x++) {
-    //        for (int y = 0; y < dim.y / 10; y++) {
+            for (int y = 0; y < dim.y / 10; y++) {
-	//			  for (int z = 0; z < dim.z; z++) {
+				  for (int z = 0; z < dim.z; z++) {
-    //                if (rand() % 1000 < 1)
+                    if (rand() % 1000 < 1)
-    //                    list[x + dim.x * (y + dim.z * z)] = rand() % 6;
+                        list[x + dim.x * (y + dim.z * z)] = rand() % 6;
-    //            }
+                }
-    //        }
+            }
-    //    }
+        }
 
 		
 	}
@@ -162,6 +220,11 @@ public:
 	~Map() {
 	}
 
+
+
+
+
+
 	sf::Vector3i getDimensions();
 	char *list;
 	sf::Vector3i dimensions;

include/util.hpp

@@ -39,6 +39,32 @@ private:
 		double fps_average = 0;
 };
 
+struct debug_text {
+public:
+	debug_text(int slot, int pixel_spacing, void* data_, std::string prefix_) : data(data_), prefix(prefix_) {
+		if (!f.loadFromFile("../assets/fonts/Arial.ttf")) {
+			std::cout << "couldn't find the fall back Arial font in ../assets/fonts/" << std::endl;
+		}
+		else {
+			t.setFont(f);
+			t.setCharacterSize(20);
+			t.setPosition(20, slot * pixel_spacing);
+		}
+
+	}
+
+	void draw(sf::RenderWindow *r) {
+		t.setString(prefix + std::to_string(*(float*)data));
+		r->draw(t);
+	}
+
+private:
+	void* data;
+	std::string prefix;
+	sf::Font f;
+	sf::Text t;
+
+};
 
 inline sf::Vector3f SphereToCart(sf::Vector2f i) {
 

src/CL_Wrapper.cpp

@@ -59,7 +59,9 @@ int CL_Wrapper::acquire_platform_and_device(){
     // falling back to the cpu with the fastest clock if we weren't able to find one
 
     device current_best_device;
-	current_best_device.type = -1; // Set this to -1 so the first run always selects a new device
+	current_best_device.type = 0; // Set this to 0 so the first run always selects a new device
+	current_best_device.clock_frequency = 0;
+	current_best_device.comp_units = 0;
 
 
     for (auto kvp: plt_ids){
@@ -86,7 +88,7 @@ int CL_Wrapper::acquire_platform_and_device(){
     platform_id = current_best_device.platform;
     device_id = current_best_device.id;
 
-    return 0;
+    return 1;
 };
 
 int CL_Wrapper::create_shared_context() {
@@ -272,7 +274,6 @@ int CL_Wrapper::store_buffer(cl_mem buffer, std::string buffer_name){
 
 int CL_Wrapper::run_kernel(std::string kernel_name, const int work_size){
 
-    const int WORKER_SIZE = 10;
     size_t global_work_size[1] = { static_cast<size_t>(work_size) };
 
     cl_kernel kernel = kernel_map.at(kernel_name);

src/Camera.cpp

@@ -27,7 +27,34 @@ int Camera::add_static_impulse(sf::Vector3f impulse) {
 
 int Camera::add_relative_impulse(DIRECTION impulse_direction) {
 	
-	SphereToCart(direction);
+	// No sense in doing fancy dot products, adding Pi's will suffice
+	// Always add PI/2 to X initially to avoid negative case
+	sf::Vector2f dir;
+
+	switch (impulse_direction) {
+	
+	case DIRECTION::UP:
+		dir = sf::Vector2f(direction.y, direction.x + PI);
+		break;
+	case DIRECTION::DOWN:
+		dir = sf::Vector2f(direction.y, direction.x);
+		break;
+	case DIRECTION::LEFT:
+		dir = sf::Vector2f(direction.y + PI + PI / 2, PI / 2);
+		break;
+	case DIRECTION::RIGHT:
+		dir = sf::Vector2f(direction.y + PI / 2, PI / 2);
+		break;
+	case DIRECTION::FORWARD:
+		dir = sf::Vector2f(direction.y, direction.x + PI / 2);
+		break;
+	case DIRECTION::REARWARD:
+		dir = sf::Vector2f(direction.y + PI, (direction.x * -1) + PI / 2 );
+		break;
+
+	}
+
+	movement += SphereToCart(dir);
 
 	return 1;
 }
@@ -37,20 +64,30 @@ int Camera::slew_camera(sf::Vector2f input) {
 	return 1;
 }
 
-int Camera::update() {
+int Camera::update(double delta_time) {
 	
-	position += movement;
+	// so vector multiplication broke?
+	// have to do it component wise
+	double multiplier = 50;
 
-	movement *= friction_coefficient;
+	position.x += movement.x * delta_time * multiplier;
+	position.y += movement.y * delta_time * multiplier;
+	position.z += movement.z * delta_time * multiplier;
+	
+	movement *= (float)(friction_coefficient * delta_time * multiplier);
 	
 	return 1;
 }
 
-void* Camera::get_direction_pointer() {
+sf::Vector2f* Camera::get_direction_pointer() {
 	return &direction;
 }
 
-void* Camera::get_position_pointer() {
+sf::Vector3f* Camera::get_movement_pointer() {
+	return &movement;
+}
+
+sf::Vector3f* Camera::get_position_pointer() {
 	return &position;
 }
 

src/Map.cpp

@@ -22,9 +22,6 @@ void Map::moveLight(sf::Vector2f in) {
 
 }
 
-//void Map::GenerateFloor(){
-//}
-
 
 
 

src/main.cpp

@@ -65,6 +65,12 @@ sf::Texture window_texture;
 
 int main() {
 
+	//Map m(sf::Vector3i (50, 50, 50));
+	//return 1;
+
+
+
+
 	sf::RenderWindow window(sf::VideoMode(WINDOW_X, WINDOW_Y), "SFML");
 
 
@@ -137,8 +143,8 @@ int main() {
 		sf::Vector2f(0.0f, 1.00f)
 	);
 	
-	c.create_buffer("cam_dir_buffer", sizeof(float) * 4, camera.get_direction_pointer(), CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR);
+	c.create_buffer("cam_dir_buffer", sizeof(float) * 4, (void*)camera.get_direction_pointer(), CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR);
-	c.create_buffer("cam_pos_buffer", sizeof(float) * 4, camera.get_position_pointer(), CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR);
+	c.create_buffer("cam_pos_buffer", sizeof(float) * 4, (void*)camera.get_position_pointer(), CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR);
     
 	// {r, g, b, i, x, y, z, x', y', z'}
 	float light[] = { 0.4, 0.8, 0.1, 1, 50, 50, 50, 1.1, 0.4, 0.7};
@@ -211,7 +217,15 @@ int main() {
 
 	RayCaster ray_caster(map, map_dim, view_res);
 
+	sf::Vector2f *dp = camera.get_direction_pointer();
+	debug_text cam_text_x(1, 30, &dp->x, "X: ");
+	debug_text cam_text_y(2, 30, &dp->y, "Y: ");
 
+	sf::Vector3f *mp = camera.get_movement_pointer();
+	debug_text cam_text_mov_x(4, 30, &mp->x, "X: ");
+	debug_text cam_text_mov_y(5, 30, &mp->y, "Y: ");
+	debug_text cam_text_mov_z(6, 30, &mp->y, "Z: ");
+	//debug_text cam_text_z(3, 30, &p->z);
 	// ===============================================================================
 
 	// Mouse capture
@@ -245,22 +259,25 @@ int main() {
 		cam_vec.z = 0;
 
 		if (sf::Keyboard::isKeyPressed(sf::Keyboard::Q)) {
-			cam_vec.z = 1;
+			camera.add_relative_impulse(Camera::DIRECTION::DOWN);
 		}
 		if (sf::Keyboard::isKeyPressed(sf::Keyboard::E)) {
-			cam_vec.z = -1;
+			camera.add_relative_impulse(Camera::DIRECTION::UP);
 		}
 		if (sf::Keyboard::isKeyPressed(sf::Keyboard::W)) {
-			cam_vec.y = 1;
+			camera.add_relative_impulse(Camera::DIRECTION::FORWARD);
 		}
 		if (sf::Keyboard::isKeyPressed(sf::Keyboard::S)) {
-			cam_vec.y = -1;
+			camera.add_relative_impulse(Camera::DIRECTION::REARWARD);
 		}
 		if (sf::Keyboard::isKeyPressed(sf::Keyboard::A)) {
-			cam_vec.x = 1;
+			camera.add_relative_impulse(Camera::DIRECTION::LEFT);
 		}
 		if (sf::Keyboard::isKeyPressed(sf::Keyboard::D)) {
-			cam_vec.x = -1;
+			camera.add_relative_impulse(Camera::DIRECTION::RIGHT);
+		}
+		if (sf::Keyboard::isKeyPressed(sf::Keyboard::T)) {
+			camera.set_position(sf::Vector3f(20, 20, 20));
 		}
 
 		camera.add_static_impulse(cam_vec);
@@ -288,13 +305,12 @@ int main() {
 		while ((accumulator_time - step_size) >= step_size) {
             accumulator_time -= step_size;
 
-			
             // ==== DELTA TIME LOCKED ====
-			camera.update();
-
         }
 
         // ==== FPS LOCKED ====
+		camera.update(delta_time);
+
 
 		// Run the raycast
 		error = clEnqueueAcquireGLObjects(c.getCommandQueue(), 1, &image_buff, 0, 0, 0);
@@ -320,6 +336,15 @@ int main() {
 		fps.frame(delta_time);
 		fps.draw(&window);
 
+		cam_text_x.draw(&window);
+		cam_text_y.draw(&window);
+
+		cam_text_mov_x.draw(&window);
+		cam_text_mov_y.draw(&window);
+		cam_text_mov_z.draw(&window);
+
+		//cam_text_z.draw(&window);
+			
 		window.display();
 
 	}