Re: [Visualpython-users] game in python

[Jonathan B. <jbr...@ea...>]

On Fri, 2004-05-14 at 09:28, Andrew Williams wrote:
> On Fri, 14 May 2004 08:53:45 -0400, Jonathan Brandmeyer wrote:
> 
> >All vectors are always floating-point values in VPython.  If you need to
> >truncate the precision to an integer type, you will probably need to
> >write your own round-to-nearest conversion routine since Python only
> >directly supports truncation of the decimal part.  See math.modf() for
> >some help here.
> 
> I'd have thought the 'round' builtin would do just that. It returns a
> float, but rounded to the specified number of decimal places (if the
> optional number of decimal places is omitted), so int(round(x)) should
> always be the nearest integer. 
> 
> Still, I'd test for collision by specifying a tolerance a bit more
> explicitly - if pos2 and pos1 are both vectors, this is short and very
> readable:
> 
> if abs(pos2 - pos1) < 0.01:
>   handle_collision()
> 
> Andrew


Of course, a built-in function.  I was only looking in the math module. 
Thanks for clearing this up.

-Jonathan Brandmeyer