Nice collection!
And so many nspires

well, were is no need for advanced sin/cos-stuff... one can simply use the area of the triangle:
A = (50 * h)/2 = 30*40/2
which leeds to h = 24, if i'm not mistaken

Mind explaining? I'm curious to know why the area is the same as the height

Edit: Nevermind, got it!

Today my brother was telling me that OmnomIRC didn't work for him, and it wasn't the cache.
So I went to look for the problem, and here is what I found:

Inside the code their is a line which converts your username to base64, and it looks like this with me:
userName = base64.encode("jimbauwens");
However, with Stefan (nick is "Stefan Bauwens"), it looks like this:
userName = base64.encode("Stefan
Bauwens");It is divided over 2 lines. This is probably because the space in his name gets somehow replaced with a new line.

I've been working on my own tunnel game lately that uses a 16 bit color sprite   

I'm jealous! Nspire lua can only handle 15 color sprites! (the last bit is the alpha channel).

I have the same problem, there is only a '-' in the body.

~ is the last displayable char in the (standard) ascii set. Maybe somewhere there is an error in conversion code that makes it go out of 'bounds'.

I tested it, and the speed is just fine on calc