maybe a bug...or maybe not

[bappy]

hi, maybe it s a bug or maybe i ve make something wrong...
here is my code, it s just a md2 animation handling receiver.

so i just want this thing:
when i press 8, sydney, run.
but when i press nothing , sydney stand.

the problem is that when i press 8, it run and if i dont touch anything, it continu running, i always receive the EET_KEY_INPUT_EVENT even if i don t press anything
but if i move the mouse , it goes to the else code and sydney is standing as i want.

class MyEventReceiver : public IEventReceiver
{
public:
virtual bool OnEvent(SEvent event)
{
if (event.EventType == EET_KEY_INPUT_EVENT)
{
switch(event.KeyInput.Key)
{
case KEY_KEY_X:
go=0;
break;

case KEY_NUMPAD8:
if(Sydney->getFrameNr()<=312)
{
Sydney->setMD2Animation("run");
Running=1;
}
break;
return true;
}
}
else
{
if(go==true && Running==1)
{
Running=0;
Sydney->setMD2Animation("stand");
}
}
return false;
}
};

another thing...
it should be cool if we could have a getActiveAnimationName function in IAnimatedMeshSceneNode...because testing which frame is playing is not very confortable.

[saigumi]

Yep, it's a bug in your code.

If there is no event (KeyPress, Mouse, GUI) being sent, OnEvent() won't get called.

You'd be better off with something like:

Code: Select all

class MyEventReceiver : public IEventReceiver 
{ 
	public: 

		virtual bool OnEvent(SEvent event) { 
			if (event.EventType == EET_KEY_INPUT_EVENT) { 
				switch(event.KeyInput.Key) { 
					case KEY_NUMPAD8: 
						if (event.KeyInput.PressedDown) { 
							Sydney->setMD2Animation("run"); 
						} else {
							Sydney->setMD2Animation("stand");
						}
						break; 
					return true; 
				} 
			} 
			return false; 
		} 
}; 

[VeneX]

Please saigumi can you add something to your code?
It would be nice to finish the animation when using the 8 key.
And what is the code for a mouse click in stead of the 8 key?

[Robomaniac]

to check for a mouse click just replace

Code: Select all

 if (event.EventType == EET_KEY_INPUT_EVENT) 

with

Code: Select all

 if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN)

and then don't worry about the switch in there.

ex.

Code: Select all

 if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN && gameState == GAME_STATE_RUNNING) // just add in a check to the gameState 
      { 
         shootPlasma();
      }

--The Robomaniac

[VeneX]

gameState == GAME_STATE_RUNNING are two variables, I don't know how to assign one of the variable with true or false of a movement: what is the code to check if he is playing an animation or not.

btw thanks for your help

[Robomaniac]

gameState and GAME_STATE_RUNNING were 2 var's that i added to check whether the game was running, idk how to check whether an anim is playing though.

[VeneX]

But... If you added the variables but you don't know how to see if the anim is playing, how could you assign the variables with playing or not playing (as known as true/false)?

[Robomaniac]

Oh, gameState and GAME_STATE_RUNNING are vars that i set to see whether the game was in the menu or running the main loop

--The Robomaniac

[VeneX]

Does anybody know if it is possible to check the animation? I mean when you use the mouse button he finishes the animation. And when the animation is playing and you click again he won't start the animation over but plays further.

[bappy]

that s why i do this:
Sydney->getFrameNr()<=312)

before 312, it's the stand animation. you can know it with your mesh->getAnimationName() function(!!be carefull it's not with your meshnode!!)

that s why i have post this request:

it should be cool if we could have a getActiveAnimationName function in IAnimatedMeshSceneNode...because testing which frame is playing is not very confortable.

[VeneX]

thank you very much! that's usefull, but what's wrong with this code?

Code: Select all

#include <irrlicht.h>
using namespace irr;
using namespace core;
using namespace scene;
using namespace video;
using namespace io;
using namespace gui;
#pragma comment(lib, "Irrlicht.lib")

int main()
{
	IrrlichtDevice *device =
		createDevice(DT_SOFTWARE, dimension2d<s32>(512, 384), 16, false, false, 0);

	device->setWindowCaption(L"Hello World! - Irrlicht Engine Demo");

	IVideoDriver* driver = device->getVideoDriver();
	ISceneManager* smgr = device->getSceneManager();
	IGUIEnvironment* guienv = device->getGUIEnvironment();

	guienv->addStaticText(L"Hello World! This is the Irrlicht Software engine!",
		true, rect<int>(10,10,200,30));

	IAnimatedMesh* mesh = smgr->getMesh("../../media/sydney.md2");
	IAnimatedMeshSceneNode* node = smgr->addAnimatedMeshSceneNode( mesh );

	if (node)
	{
		node->setMaterialFlag(EMF_LIGHTING, false);
		node->setFrameLoop(0, 310);	
		node->setMaterialTexture( 0, driver->getTexture("../../media/sydney.bmp") );
	}

	smgr->addCameraSceneNode(0, vector3df(0,10,-40), vector3df(0,0,0));


	class MyEventReceiver : public IEventReceiver 
{ 
   public: 

      virtual bool OnEvent(SEvent event) { 
         if (event.EventType == EET_KEY_INPUT_EVENT) { 
            switch(event.KeyInput.Key) { 
               case KEY_NUMPAD8: 
                  if (event.KeyInput.PressedDown) { 
                     node->setMD2Animation("run"); 
                  } else { 
                     node->setMD2Animation("stand"); 
                  } 
                  break; 
               return true; 
            } 
         } 
         return false; 
      } 
}; 


	while(device->run())
	{
		driver->beginScene(true, true, SColor(0,100,100,100));

		smgr->drawAll();
		guienv->drawAll();

		driver->endScene();
	}

	device->drop();

	return 0;
}

E:\Irrlicht\examples\Kopie van 1.HelloWorld\main.cpp(46) : error C2065: 'node' : undeclared identifier
E:\Irrlicht\examples\Kopie van 1.HelloWorld\main.cpp(46) : error C2227: left of '->setMD2Animation' must point to class/struct/union
E:\Irrlicht\examples\Kopie van 1.HelloWorld\main.cpp(48) : error C2227: left of '->setMD2Animation' must point to class/struct/union

[VeneX]

I don't know what it could be. Can someone help me please?
I know the MyEventReceiver should be above MAIN but, node isn't created than.

[saigumi]

The problem is that node isn't a member of the MyEventReciever Class, it's a member of your main.

So, what you need to do is have your main call a class extended from MyEventReceiver as in the Movement tutorial.

You can find out about how classes work at:
http://www.cprogramming.com/tutorial/lesson12.html

[VeneX]

Thanks for your help. But, when I set the "class MyEventReceiver : public IEventReceiver" above main and set "MyEventReceiver receiver;" in then main. It is still not working.
"'setMD2Animation' : cannot convert parameter 1 from 'char [4]' to 'enum irr::scene::EMD2_ANIMATION_TYPE'"

[saigumi]

That is because 'setMD2Animation' takes either a irr::c8* or an EMD2_ANIMATION_TYPE.

Try:

Code: Select all

 node->setMD2Animation(irr::scene::EMAT_STAND);

and

 node->setMD2Animation(irr::scene::EMAT_RUN);