Specify night length in hours.

diff --git a/tabakrolletjie/constants.py b/tabakrolletjie/constants.py
index 6ddfd9fd01083bda88ae028072ba811a1df1c762..0ea58f52a260aba732d68e84a8f8be7b2652bf0a 100644 (file)
--- a/tabakrolletjie/constants.py
+++ b/tabakrolletjie/constants.py
@@ -19,6 +19,8 @@ FPS = 30
 
 # Night length in ticks
 NIGHT_LENGTH = 1500
+# Night length in hours
+NIGHT_LENGTH_HOURS = 12
 
 # Pymunk categories
 OBSTACLE_CATEGORY = 1 << 0