From f7e86b466b1d1f7b25704501360a7642fbdaf20f Mon Sep 17 00:00:00 2001
From: mckaygerhard <mckaygerhard@gmail.com>
Date: Thu, 28 Oct 2021 09:46:27 -0500
Subject: [PATCH] temporary workaround for #24

* backport https://github.com/minetest-mods/3d_armor/commit/3b97763fdc964581e7989cbf73388ca7918b9bcd
* it try to fix the problem of https://github.com/minetest-mods/3d_armor/issues/24
---
 3d_armor/api.lua | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/3d_armor/api.lua b/3d_armor/api.lua
index 1a904b40..e3ef1d53 100644
--- a/3d_armor/api.lua
+++ b/3d_armor/api.lua
@@ -340,6 +340,9 @@ armor.punch = function(self, player, hitter, time_from_last_punch, tool_capabili
 				local groupcaps = tool_capabilities.groupcaps or {}
 				local uses = 0
 				damage = false
+				if next(groupcaps) == nil then
+					damage = true
+				end
 				for group, caps in pairs(groupcaps) do
 					local maxlevel = caps.maxlevel or 0
 					local diff = maxlevel - level