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init.lua

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+--[[
+
+Node Owner for Minetest
+
+Copyright (c) 2012 cornernote, Brett O'Donnell <cornernote@gmail.com>
+Source Code: https://github.com/cornernote/minetest-node_owner
+License: BSD-3-Clause https://raw.github.com/cornernote/minetest-node_owner/master/LICENSE
+
+]]--
+
+--add adminnode provilege
+
+minetest.register_privilege("admin_node", "Player can dig the node that is owned by other player.")
+
+-- override minetest.item_place_node
+local old_item_place_node = minetest.item_place_node
+function minetest.item_place_node(itemstack, placer, pointed_thing, param2)
+    local player = placer:get_player_name()
+--    local base_node = minetest.env:get_meta(pointed_thing.under)
+	local base_node = minetest.get_meta(pointed_thing.under)
+
+    local owner = base_node:get_string("owner")
+	
+	-- do not allow placing onto other players nodes
+    if owner ~= player and owner ~= '' and minetest.check_player_privs(player, "admin_node") ~= true then
+		minetest.chat_send_player(player, "You can not place nodes here because it is owned by "..owner..".")
+		return
+    end
+	
+	-- place the node
+	local output = old_item_place_node(itemstack, placer, pointed_thing, param2)
+	
+	-- set the owner
+--    local new_node = minetest.env:get_meta(pointed_thing.above)
+	local new_node = minetest.get_meta(pointed_thing.above)
+    new_node:set_string("owner", player)
+	
+	return output
+end
+
+-- override minetest.node_dig
+local old_node_dig = minetest.node_dig
+function minetest.node_dig(pos, node, digger)
+    local player = digger:get_player_name()
+	local meta = minetest.env:get_meta(pos)
+	local owner = meta:get_string("owner")
+	
+	-- do not allow digging other players nodes
+	if owner ~= player and owner ~= '' and minetest.check_player_privs(player, "admin_node") ~= true then
+		minetest.chat_send_player(player, "You can not dig this node because it is owned by "..owner..".")
+		return itemstack
+	end
+	
+	-- dig the node
+	return old_node_dig(pos, node, digger)
+end
+
+-- log that we started
+minetest.log("action", "[MOD]"..minetest.get_current_modname().." -- loaded from "..minetest.get_modpath(minetest.get_current_modname()))