From 60796421a138563c893fc4dd8010500614198f3d Mon Sep 17 00:00:00 2001
From: Evert Prants <imsonotsleepy@gmail.com>
Date: Thu, 21 Nov 2019 17:28:31 +0200
Subject: [PATCH] Fix crash

---
 crystals.lua | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/crystals.lua b/crystals.lua
index df84b3f..b58d19d 100644
--- a/crystals.lua
+++ b/crystals.lua
@@ -324,6 +324,8 @@ minetest.register_abm({
 				count = count + 1
 			end
 
+			if count == 0 then return end
+
 			local mcnt    = randbuff:next(1, count)
 			local cnt     = 0
 			for name, data in pairs(contents) do