[gameprogrammer] Re: Odometer
- From: Alan Wolfe <alan.wolfe@xxxxxxxxx>
- To: gameprogrammer@xxxxxxxxxxxxx
- Date: Fri, 30 Sep 2005 11:14:41 -0700
calculate the measurement? for a car game or something?
Do you know the distance formula?
2d: Distance = squareroot((x2-x1)^2+(y2-y1)^2)
3d: Distance = squareroot((x2-x2)^2+(y2-y1)^2+(z2-z1)^2)
that answer your question?
On 9/30/05, jorgefm@xxxxxxxxx <jorgefm@xxxxxxxxx> wrote:
>
> Well, the openGL code is no problem. I've yet all the source
> to load texture, draw it, and so on working. I was thinking in
> a component with the odometer behaviour, to know how the
> 'acumulative' scroll could be done. For every digit position
> you can draw a textured number and translate it for an amount
> at every constant time. How to calculate this messurements are
> my question.
>
>
>
> gameprogrammer-bounce@xxxxxxxxxxxxx escribió el 30/09/2005 16:58:52:
>
>
> > On 30 Sep, 2005, at 8:01 AM, jorgefm@xxxxxxxxx wrote:
> >
> > > Hi all,
> > >
> > > Anybody knows how implement a graphical odometer with SDL, openGL,
> > > etc ?
> > > Or knows a link to a odometer component in C/C++ ?
> > >
> > > Thanks
> > > Jorge
> >
> > I've not done it myself, but I imagine that it's probably a simply
> > matter of determining a set of textures for the numbers, then the
> > space you want them to go, and finally keeping track of the distance
> > traveled, and cutting off the floating-point value, and then parsing
> > the integer into a string of numbers, and drawing those into their
> > appropriate locations using the appropriate number-texture. So, I
> > guess it comes down to how much OpenGL code do you know? (ie: can
> > you load textures and keep track of them?)
> >
> > So IF you understand what I just rambled about (I'm REALLY bad at
> > explaining things to people), then maybe you can clarify at what
> > point you can no longer figure this out the rest of the way, and I
> > can try to give you some code. ^_^ I just don't want to teach/
> > exemplify stuff that you already know.
> >
> > --Ben
> >
> >
> > ---------------------
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> >
> >
>
>
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