I can't find the problem of a crash (no error when compiling

[dipi]

I have tried some examples(code snippets). If I compile it doesn't give any errors. But when I play it it crashes.

When I use the debugger from Visual C++
it returns that it's crash on

camera->setTarget(tris_node->getAbsolutePosition()+vector3df(0,120-lastMousePos.Y,0));

Code: Select all

#include "startup.h";

/* enkele variabelen */
ISoundEngine* soundengine = 0;
float char_speed=0.8;
float char_direc=0;
float mouse_sensitivity=3;
float grav_force=9;
int char_walking=0;
bool keys[irr::KEY_KEY_CODES_COUNT];
void mouse_look();
int screen_height;
int screen_width;
bool full_screen;
bool cursor_visible;
position2d<s32> mousePos;
position2d<s32> lastMousePos;
IrrlichtDevice *device;
//
/* input */
class MyEventReceiver : public IEventReceiver
{
public:
 virtual bool OnEvent(const SEvent& event) {
  if(event.EventType == irr::EET_KEY_INPUT_EVENT){
   keys[event.KeyInput.Key] = event.KeyInput.PressedDown;
   return false;
  }
   return false;
  }
};


/* hoofdprogram */
int main(){
IrrXMLReader* xml = createIrrXMLReader("config.xml");
while(xml && xml->read())
  {
    switch(xml->getNodeType())
    {
    case EXN_ELEMENT:
		if (!strcmp("venster", xml->getNodeName())){
		 screen_height = atoi(xml->getAttributeValue("height"));
         screen_width = atoi(xml->getAttributeValue("width"));
		}
	   else
		   if (!strcmp("fullscreen", xml->getNodeName())){
        full_screen = atoi(xml->getAttributeValue("value"));
		   }
		   else
		   if (!strcmp("cursor", xml->getNodeName())){
         cursor_visible = atoi(xml->getAttributeValue("visible"));
		   }
		  
       break;
    }
  }
  delete xml;
  MyEventReceiver receiver;
IrrlichtDevice *device=createDevice(EDT_DIRECT3D9,dimension2d<s32>(screen_width,screen_height),32,full_screen,0,0,&receiver);
position2d<s32> mousePos = device->getCursorControl()->getPosition();
position2d<s32> lastMousePos = device->getCursorControl()->getPosition();

device->getCursorControl()->setVisible(cursor_visible);
device->getCursorControl()->setPosition(screen_width/2,screen_height/2);
for(int x=0; x<irr::KEY_KEY_CODES_COUNT; x++) keys[x] = false;
//engines opstarten en instellen
//config file inlezen

//einde inladen
//starten engines

IVideoDriver* driver = device->getVideoDriver();
ISceneManager* smgr = device->getSceneManager();
soundengine = createIrrKlangDevice();
IGUIEnvironment* guienv = device->getGUIEnvironment();
IAnimatedMesh* meshke = smgr->getMesh("dwarf.X");
IAnimatedMeshSceneNode* tris_node = smgr->addAnimatedMeshSceneNode(meshke);


ICameraSceneNode* camera=smgr->addCameraSceneNode();

camera->setParent(tris_node);
camera->setPosition(vector3df(-5.f,6.f,0.f));

while(device->run())
{

//stringw str = L"lastMousePos.Y=";
//str += lastMousePos.Y;
//device->setWindowCaption(str.c_str());

//PLACE CAMERA
camera->setTarget(tris_node->getAbsolutePosition()+vector3df(0,120-lastMousePos.Y,0));
tris_node->setRotation(vector3df(0.f, char_direc, 0.f));

//Move
if(keys[KEY_KEY_W])
{tris_node->setPosition(tris_node->getPosition()+vector3df(cos(((char_direc)*PI)/180)*char_speed,0,-sin(((char_direc)*PI)/180)*char_speed));}
if(keys[KEY_KEY_A])
{tris_node->setPosition(tris_node->getPosition()+vector3df(cos(((char_direc+270)*PI)/180)*char_speed,0,-sin(((char_direc+270)*PI)/180)*char_speed));}
if(keys[KEY_KEY_S])
{tris_node->setPosition(tris_node->getPosition()+vector3df(cos(((char_direc+180)*PI)/180)*char_speed,0,-sin(((char_direc+180)*PI)/180)*char_speed));}
if(keys[KEY_KEY_D])
{tris_node->setPosition(tris_node->getPosition()+vector3df(cos(((char_direc+90)*PI)/180)*char_speed,0,-sin(((char_direc+90)*PI)/180)*char_speed));}
//voorbeeld voor animatie van ventje
//if(char_walking==0&&(keys[KEY_KEY_W]||keys[KEY_KEY_A]||keys[KEY_KEY_S]||keys[KEY_KEY_D]))
//{tris_node->setMD2Animation(EMAT_RUN);
//char_walking=1;}
//else
//{if(!keys[KEY_KEY_W]&&!keys[KEY_KEY_A]&&!keys[KEY_KEY_S]&&!keys[KEY_KEY_D])
//{tris_node->setMD2Animation(EMAT_STAND);
//char_walking=0;}}

//Jump(TEST)
if(keys[KEY_SPACE])
{tris_node->setPosition(tris_node->getPosition()+vector3df(0,3,0));}
//Mouse Look
mouse_look();
driver->beginScene(true, true, SColor(255,100,101,140));
smgr->drawAll();
guienv->drawAll();
driver->endScene();
}
device->drop();
soundengine->drop(); 
return 0;
}
void mouse_look()
{
    mousePos = device->getCursorControl()->getPosition();

    if(mousePos.X > lastMousePos.X)
    {char_direc+=mouse_sensitivity;}
    if(mousePos.X < lastMousePos.X)
    {char_direc-=mouse_sensitivity;}

    if(lastMousePos.X>=screen_width-1)
    {device->getCursorControl()->setPosition(2,mousePos.Y);}
    if(lastMousePos.X<=1)
    {device->getCursorControl()->setPosition(screen_width-2,mousePos.Y);}

    if(char_direc<=-360)
    {char_direc=0;}
    if(char_direc>=360)
    {char_direc=0;}

    if(lastMousePos.Y>screen_height)
    {device->getCursorControl()->setPosition(mousePos.X,screen_height);}
    if(lastMousePos.Y<0)
    {device->getCursorControl()->setPosition(mousePos.X,0);}


    lastMousePos = mousePos;
}

Code: Select all

[JP]

When using pointers you need to be sure that they're valid, are both those pointers (camera and tris_node) valid?

[Halifax]

Yeah, according to your code they seem valid. But I am going to take a stab in the dark and say it is this:

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smgr->getMesh("dwarf.X")

Quite possibly, Irrlicht doesn't accept it? And only accepts .x lowercase, like:

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smgr->getMesh("dwarf.x")

As I said, I don't know, just a stab in the dark.

[hybrid]

No, that's ok on Windows systems. But using the returned pointer without checking for NULL might raise problems, e.g. if the mesh could not be loaded.

[dipi]

there's something wrong in my code. But I will start again.

You may close this topic

[rogerborg]

How gracious of you!

We like to see solutions, as well as problems. Did any of the above help you? Are you making progress?