From 6fa9702a6aae45ea06924abba9ce93bfbf363ead Mon Sep 17 00:00:00 2001
From: Zeg9 <dazeg9@gmail.com>
Date: Fri, 7 Jun 2013 19:59:05 +0200
Subject: [PATCH] Add compatibility to protector mods

---
 steel/depends.txt |  2 ++
 steel/init.lua    | 37 ++++++++++++++++++++++++++++++++++++-
 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/steel/depends.txt b/steel/depends.txt
index 915c6d2..5643dca 100644
--- a/steel/depends.txt
+++ b/steel/depends.txt
@@ -1,3 +1,5 @@
 default
 streets?
 homedecor?
+protector?
+node_ownership?
diff --git a/steel/init.lua b/steel/init.lua
index e49bc60..9eb8c71 100644
--- a/steel/init.lua
+++ b/steel/init.lua
@@ -6,11 +6,46 @@ else
 	steel_expect_infinite_stacks = false
 end
 
+function steel_node_is_owned(pos, placer)
+	local ownername = false
+	if type(IsPlayerNodeOwner) == "function" then					-- node_ownership mod
+		if HasOwner(pos, placer) then						-- returns true if the node is owned
+			if not IsPlayerNodeOwner(pos, placer:get_player_name()) then
+				if type(getLastOwner) == "function" then		-- ...is an old version
+					ownername = getLastOwner(pos)
+				elseif type(GetNodeOwnerName) == "function" then	-- ...is a recent version
+					ownername = GetNodeOwnerName(pos)
+				else
+					ownername = "someone"
+				end
+			end
+		end
+
+	elseif type(isprotect)=="function" then 					-- glomie's protection mod
+		if not isprotect(5, pos, placer) then
+			ownername = "someone"
+		end
+	elseif type(protector)=="table" and type(protector.can_dig)=="function" then 					-- Zeg9's protection mod
+		if not protector.can_dig(5, pos, placer) then
+			ownername = "someone"
+		end
+	end
+
+	if ownername ~= false then
+		minetest.chat_send_player( placer:get_player_name(), ("Sorry, %s owns that spot."):format(ownername) )
+		return true
+	else
+		return false
+	end
+end
+
 function steel_rotate_and_place(itemstack, placer, pointed_thing)
 
 	local node = minetest.env:get_node(pointed_thing.under)
 	if not minetest.registered_nodes[node.name] or not minetest.registered_nodes[node.name].on_rightclick then
-
+		if steel_node_is_owned(pointed_thing.above, placer) then
+			return itemstack
+		end
 		local above = pointed_thing.above
 		local under = pointed_thing.under
 		local pitch = placer:get_look_pitch()