nil check for get_distance

2020-07-20 07:27:55 +01:00 · 2020-07-20 07:27:55 +01:00 · 4814f53885
parent f033cd401c
commit 4814f53885
1 changed files with 1 additions and 1 deletions
--- a/api.lua
+++ b/api.lua
@ -195,7 +195,7 @@ end

 -- calculate distance
 local get_distance = function(a, b)
-
+if not a or not b then return 50 end -- nil check
 	local x, y, z = a.x - b.x, a.y - b.y, a.z - b.z

 	return square(x * x + y * y + z * z)