From a6b6795eb4bb732d14cc6fd451de64164ab463d8 Mon Sep 17 00:00:00 2001
From: tenplus1 <kinsellaja@yahoo.com>
Date: Sun, 21 Jun 2020 20:52:52 +0100
Subject: [PATCH] tweak obsidian flan node breakage

---
 lava_flan.lua | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lava_flan.lua b/lava_flan.lua
index 74fadb5..e160e43 100644
--- a/lava_flan.lua
+++ b/lava_flan.lua
@@ -293,7 +293,9 @@ mobs:register_arrow("mobs_monster:obsidian_arrow", {
 			texture = def.tiles[1]
 		end
 
-		if def.groups and def.groups.level == 2 then
+		-- do not break obsidian or diamond blocks or unbreakable nodes
+		if (def.groups and def.groups.level and def.groups.level > 1)
+		or def.groups.unbreakable then
 			return
 		end