From a2c8d47db243dba41b34aa93f43a9958bfe9ce94 Mon Sep 17 00:00:00 2001
From: Eric Mauser <ericmauser@googlemail.com>
Date: Fri, 17 Jun 2016 23:32:55 +0200
Subject: [PATCH] add round function

---
 env/functions.lua | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 env/functions.lua

diff --git a/env/functions.lua b/env/functions.lua
new file mode 100644
index 00000000..2e5d7d05
--- /dev/null
+++ b/env/functions.lua
@@ -0,0 +1,9 @@
+-- a real "round" instead of ceil or floor 
+function round(input, places)
+  if not places then places = 0 end
+  if type(input) == "number" and type(places) == "number" then
+    local pow = 1
+    for i = 1, places do pow = pow * 10 end
+    return floor(input * pow + 0.5) / pow
+  end
+end