more tutorials for beginners

Gav · Post by **Gav** » Sat Jul 24, 2004 3:23 am

I found the example's included with the engine very helpful for learning about the graphics side of the engine (loading meshes etc)
but was wondering if anyone knew of some more, one thing I'm a bit confused about is the types of variables irrlicht uses (particularly how can i take data such as vectors etc and turn them into strings??) and things like that.
I am not exactly an experienced programmer although I know all the basics and can usually understand something once I see it.

A nice simple example would be how to take the position of the collision in example 7 from the engine and display it on the screen. (using device->setWindowCaption() ???)

thanks

Asterisk Man · Post by **Asterisk Man** » Sat Jul 24, 2004 4:37 am

get the vector3df from ISceneCollisionManager->getCollisionPoint(), and do the following:

ISceneCollisionManager *cols = smgr->getSceneCollisionManager();
while(device->run())
{
vector3df point = cols->getCollisionPoint(fill in vars here);
wchar_t tmp[1024];
swprintf(tmp, 1024, L"X:%f Y:%f Z:%f", point.X, point.Y, point.Z);
device->setWindowCaption(tmp);

//add your drawing routines here
}

and you're done!

Gav · Post by **Gav** » Mon Jul 26, 2004 5:37 am

thanks - pretty sure i understand all that!

not at my pc at the moment but it seems to make sense. . . . although no doubt once compile-time comes around therell be something as per usual!

Gav · Post by **Gav** » Fri Aug 06, 2004 3:12 am

from ISceneCollisionManager->getCollisionPoint()

how do i get the vector3df because it returns true or false rather than the vector. (once again not at my PC but i am quite certain this is the case)

Sean Doherty · Post by **Sean Doherty** » Fri Aug 06, 2004 3:48 am

Gav wrote:from ISceneCollisionManager->getCollisionPoint()

how do i get the vector3df because it returns true or false rather than the vector. (once again not at my PC but i am quite certain this is the case)

Gav,

I have not tried it; but I assume that the outCollisionPoint reference parameter is the point of impact.

virtual bool getCollisionPoint (const core::line3d< f32 > &ray, ITriangleSelector *selector, core::vector3df &outCollisionPoint, core::triangle3df &outTriangle)=0

Gav · Post by **Gav** » Fri Aug 06, 2004 4:13 am

*takes a step back*

okay maybe i need to learn more basics. .. heh i KIND OF understand what you are talkin about

*advances very slowly*