Added comments

src/main.cpp

@@ -10,32 +10,42 @@ int main() {
 	video::E_DRIVER_TYPE driverType = driverChoiceConsole();
 	if(driverType == video::EDT_COUNT) return 1;
 
+	// Create eventReceiver variable
 	EventReceiver eventReceiver;
 
+	// Create the device we'll be using
 	IrrlichtDevice *device = createDevice(driverType, core::dimension2d<u32>(1280, 720), 32, true, false, false, &eventReceiver);
 	if(device == 0) return 1;
 
+	// Create other variables we'll need
 	video::IVideoDriver *driver = device->getVideoDriver();
 	scene::ISceneManager *smgr = device->getSceneManager();
 	gui::IGUIEnvironment *guienv = device->getGUIEnvironment();
 
+	// Add text to game
 	guienv->addStaticText(L"Use WASD to move\nUse SPACE to jump\nUse ESC to exit", core::rect<s32>(30, 30, 120, 65), false, false, 0, -1, true);
 
+	// Load map
 	device->getFileSystem()->addFileArchive("../res/map-20kdm2.pk3");
 	scene::IAnimatedMesh *mapmesh = smgr->getMesh("20kdm2.bsp");
 	scene::IMeshSceneNode *mapnode = 0;
 
 	if(mapmesh) {
-		mapnode = smgr->addOctreeSceneNode(mapmesh->getMesh(0));
+		// Create map octree node
+		mapnode = smgr->addOctreeSceneNode(mapmesh->getMesh(0), 0, -1, 2048);
 	}
+	// Create Triangle selector for collision
 	scene::ITriangleSelector *tselector = 0;
 	if(mapnode) {
+		// Set map position
 		mapnode->setPosition(core::vector3df(-1350, -130, -1400));
+		// Define triangle selector
 		tselector = smgr->createOctreeTriangleSelector(mapnode->getMesh(), mapnode, 128);
+		// Set the mapnode's triangle selector
 		mapnode->setTriangleSelector(tselector);
 	}
 
-	// Setup new keys
+	// Setup new keys (not using default)
 	SKeyMap keyMap[6];
 	keyMap[0].Action = EKA_MOVE_FORWARD;
 	keyMap[0].KeyCode = KEY_KEY_W;
@@ -48,6 +58,7 @@ int main() {
 	keyMap[4].Action = EKA_JUMP_UP;
 	keyMap[4].KeyCode = KEY_SPACE;
 
+	// Create camera
 	scene::ICameraSceneNode *cam = smgr->addCameraSceneNodeFPS(0, 100.0f, .3f, -1, keyMap, sizeof(keyMap) / sizeof(*keyMap), true, 3.0f);
 	cam->setPosition(core::vector3df(50, 50, -60));
 	cam->setTarget(core::vector3df(-70, 30, -60));
@@ -58,27 +69,33 @@ int main() {
 		cam->addAnimator(sanim);
 		sanim->drop();
 	}
+	// Hide cursor
 	device->getCursorControl()->setVisible(false);
 
 	int lastFPS = -1;
 
 	while(device->run()) {
+		// Begin the scene
 		driver->beginScene(true, true, video::SColor(0, 255, 101, 255));
+		// Draw
 		smgr->drawAll();
 		guienv->drawAll();
+		// End the scene
 		driver->endScene();
+		// Check for ESC key
 		if(eventReceiver.IsKeyDown(KEY_ESCAPE)) {
 			device->closeDevice();
 		}
 
+		// Print FPS
 		int fps = driver->getFPS();
-
 		if(lastFPS != fps) {
 			std::cout << "FPS: " << fps << std::endl;
 			lastFPS = fps;
 		}
 	}
 
+	// Drop the device and quit
 	device->drop();
 	return 0;
 }