From 2e926f0c11fc90696333e3a33ed9b246184faeef Mon Sep 17 00:00:00 2001
From: hasezoey <hasezoey@gmail.com>
Date: Sat, 30 Mar 2024 11:11:43 +0100
Subject: [PATCH] Util: add function "round_decimal" to round to a decimal
 point

0.00001, decimal 2 -> 0.00
---
 frontend/util.lua | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/frontend/util.lua b/frontend/util.lua
index 817b0b740..62c4cfd83 100644
--- a/frontend/util.lua
+++ b/frontend/util.lua
@@ -1537,4 +1537,12 @@ function util.wrapMethod(target_table, target_field_name, new_func, before_callb
     return wrapped
 end
 
+-- Round a given "num" to the decimal points of "points"
+-- (i.e. `round_decimal(0.000000001, 2)` will yield `0.00`)
+function util.round_decimal(num, points)
+    local op = 10 ^ points
+
+    return math.floor(num * op) / op
+end
+
 return util