basic problems

[Vlad_]

hi,

i m new to irrlicht. i want to implement a small skybox with stars and i want to get an input from the user to end the programm. according to a tutorial from the site i've implemented this:

Code: Select all

#include <irrlicht.h>
#include <stdio.h>
#include <wchar.h>

using namespace irr;
using namespace core;
using namespace scene;
using namespace video;
using namespace io;
using namespace gui;

ISceneNode* node = 0;
IrrlichtDevice *device = 0;

class MyEventReceiver : public IEventReceiver
{
public:
	virtual bool OnEvent(SEvent event)
	{
		if (node != 0 && event.EventType == irr::EET_KEY_INPUT_EVENT &&
				!event.KeyInput.PressedDown)
		{
			switch(event.KeyInput.Key)
			{
			case KEY_KEY_W:
			case KEY_KEY_S:
				{
					device->drop();
				}
				return true;
			}
	}


	return false;
	}
};

int main()
{
	MyEventReceiver receiver;
	
	device = createDevice(EDT_OPENGL, dimension2d<s32>(800, 600), 32, false, false, false, &receiver);
		
	device->setWindowCaption(L"Lostsignal v0.1");
	
	IVideoDriver* driver = device->getVideoDriver();
	ISceneManager* smgr = device->getSceneManager();
	IGUIEnvironment* guienv = device->getGUIEnvironment();
	
	guienv->addStaticText(L"Hello World!", rect<int>(10,10,200,22), false);
	
	smgr->addSkyBoxSceneNode(driver->getTexture("nightsky.jpg"),
							 driver->getTexture("nightsky.jpg"),
							 driver->getTexture("nightsky.jpg"),
							 driver->getTexture("nightsky.jpg"),
							 driver->getTexture("nightsky.jpg"),
							 driver->getTexture("nightsky.jpg"), 0, 0);
	
	smgr->addSphereSceneNode(3.0f, 32, 0, -1, vector3df(2.0f, 2.0f, 2.0f),
											  vector3df(0.0f, 0.0f, 0.0f),
											  vector3df(1.0f, 1.0f, 1.0f));
	
	smgr->addCameraSceneNodeFPS();
	device->getCursorControl()->setVisible(false); 
	
	int lastFPS = -1;
	
	while(device->run())
	{
		driver->beginScene(true, true, SColor(0,0,0,0));
		
		smgr->drawAll();
		guienv->drawAll();
		driver->endScene();
		
		int fps = driver->getFPS();
		
		if(lastFPS != fps)
		{
			wchar_t tmp[1024];
			
			swprintf(tmp, 1024, L"Lostsignal FPS: (%d),(%s)",
					 driver->getName(), fps);
					 
			device->setWindowCaption(tmp);
			
			lastFPS = fps;
		}
	}
	
	device->drop();
	
	return 0;
}

i m using ubuntu 7.10 and geany for programming here is a screenshot from the compiler output... something's not ok with the MyEventReceiver declaration in the main method. is there anything incorrect in the class?

here is the link to the screenshot: http://img229.imageshack.us/my.php?imag ... otoks6.png

[hybrid]

Haha, pretty cool translation. You have a pure virtual method, because your event receiver uses a wrong signature for OnEvent (which changed in Irrlicht 1.4). So you have to use OnEvent( const SEvent& event )

[Vlad_]

great thank you. so... never believe that the tutorials are correct

[Vlad_]

ok so far... new errors...

Code: Select all

test.cpp:(.text+0x1aa): undefined reference to `irr::createDevice(irr::video::E_DRIVER_TYPE, irr::core::dimension2d<int> const&, unsigned int, bool, bool, bool, irr::IEventReceiver*, char const*)'

i've added the IRRLICHT_SDK_VERSION element to this line:

Code: Select all

device = createDevice(EDT_OPENGL, dimension2d<s32>(800, 600), 32, false, false, false, &receiver, IRRLICHT_SDK_VERSION);

[Vlad_]

i ve consulted the http://irrlicht.sourceforge.net/docu/namespaceirr.html
function documentation of createDevice.... and i modified the createDevice function again.

now it looks like this, but it is STILL not working... and i wonder why??

screenshot:
http://img516.imageshack.us/img516/2869 ... otoil2.png

[dlangdev]

Haha, pretty cool translation. You have a pure virtual method, because your event receiver uses a wrong signature for OnEvent (which changed in Irrlicht 1.4). So you have to use OnEvent( const SEvent& event )

I'm wondering why are people still tripping over this?

[rogerborg]

Haha, pretty cool translation. You have a pure virtual method, because your event receiver uses a wrong signature for OnEvent (which changed in Irrlicht 1.4). So you have to use OnEvent( const SEvent& event )

I'm wondering why are people still tripping over this?

Old demo code, and a blind spot for the sticky FAQ right at the top of this forum section that explains it. Plus, liberalism. Which also causes earthquakes.

[Vlad_]

solved: parantheses added to (dimension2d.......)

[xskinyx]

I just upgraded from a really old version of irrlicht. ALL I had to change was the OnEvent thing. Pretty amazing.