New function: percent_chance()

Designed to make sure things like no god protecting you from miscasts
won't happen again.

Lua could use it in a couple places, if the function was made accessible from that environment.

1 files changed, 1 insertions, 0 deletions

diff --git a/crawl-ref/source/random.h b/crawl-ref/source/random.h
index a0ae035eb5..1e6d4fa453 100644
--- a/crawl-ref/source/random.h
+++ b/crawl-ref/source/random.h
@@ -30,6 +30,7 @@ int binomial_generator(unsigned n_trials, unsigned trial_prob);
 bool bernoulli(double n_trials, double trial_prob);
 int fuzz_value(int val, int lowfuzz, int highfuzz, int naverage = 2);
 int roll_dice(int num, int size);
+bool percent_chance(double percent);
 
 int ui_random(int max);