Sorted that one.
this line
float fractionalPart = wholeNumber - fractionalPart;
should have been
float fractionalPart = wholeNumber - integerPart;
Thanks for the help so far, this should keep me busy for a while but i think i have the makings of a code.
Damn keyboard didn't type what I was muttering to myself as I typed...
Thanks for all your help.
i should be able to tweak the code now to do what i want and the good thing is due to using a 0-99 int for the value i can assign differnt values to for any of the 0-99 ints so i should be able to get a really good simulation instead of just a liniar increase/decrease.
Again Thanks