From 64137f8ad81cc3e8dfce7fd9328a214e7c28095d Mon Sep 17 00:00:00 2001 From: Sean Whitton Date: Sun, 22 Mar 2015 01:08:32 +0000 Subject: don't ever deduct points from a class that hasn't wasted any time --- src/sariulccron.hs | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/sariulccron.hs b/src/sariulccron.hs index c45db0a..394909e 100644 --- a/src/sariulccron.hs +++ b/src/sariulccron.hs @@ -27,7 +27,9 @@ scoreTimeWasted :: Score -> Int scoreTimeWasted (Score _ x) = x deductPoints :: Int -> (Class, Score) -> (Class, Score) -deductPoints n (c, Score x y) = (c, Score (x - n) y) +deductPoints n (c, Score x y) = if y > 0 + then (c, Score (x - n) y) + else (c, Score x y) resetTime :: (Class, Score) -> (Class, Score) resetTime (c, Score x _) = (c, Score x 0) -- cgit v1.2.3