math question

For a new camping device i'm working on, I have a bit of a math problem... The timer runs every 60 seconds (1 minute) and it adds time to variable "minutes". once it equals "cycletime" I want it to add some money to how much you've earned sofar. BUT variable "minutes" keeps going from there so I need a way to find out if minutes is divisible by cycletime. so assuming cycletime is 3 it pays every time minutes is 3, 6, 9, 12...ect



right now I tried using how much ive earned to calculate it but it messes up sometimes.
if (minutes/cycletime == made/makepercycle)

Nevermind, I finally got it. Here's the answer for anybody that also wants to know...


if x - (x / y) * y = 0

Make sure minutes is a "float"

if (minutes/cycletime == llRound(minutes/cycletime))

Something like...

Multiplier = Time % Cycle;
PayAmount = Multiplier * Money;

...should do the trick quite nicely.

Instead of keeping track of some incremental sum, why not just keep track of starting time and use a straight function of the elapsed time? For example:

integer EARNINGS_PER_PERIOD = 4;
float PERIOD_SEC = 180.0; // 3 mintues
// ...
float startTime_sec = llGetTime();
// ...
float t_sec = llGetTime()-startTime_sec;
integer earnedMoney = EARNINGS_PER_PERIOD*llFloor(t_sec/PERIOD_SEC);