Improved Spikes

mods/spikes/init.lua

@@ -1,5 +1,30 @@
 spikes = {}
 
+spikes.intllib_modpath = minetest.get_modpath("intllib")
+
+if minetest.get_modpath("unified_inventory") or not minetest.setting_getbool("creative_mode") then
+	spikes.expect_infinite_stacks = false
+else
+	spikes.expect_infinite_stacks = true
+end
+
+spikes.modpath = minetest.get_modpath("spikes")
+
+-- protection wrapper for 6d stuff
+
+function spikes.protect_and_rotate(itemstack, placer, pointed_thing)
+	if not spikes.node_is_owned(pointed_thing.under, placer) 
+	   and not spikes.node_is_owned(pointed_thing.above, placer) then
+		minetest.rotate_and_place(itemstack, placer, pointed_thing,
+			spikes.expect_infinite_stacks)
+	end
+	return itemstack
+end
+
+-- other components
+
+dofile(spikes.modpath.."/ownership.lua")
+
 for i, tree_name in ipairs(realtest.registered_trees_list) do
     local tree = realtest.registered_trees[tree_name]
 
@@ -31,6 +56,7 @@ for i, tree_name in ipairs(realtest.registered_trees_list) do
 	    walkable = false,
 	    damage_per_second = 10,
 	    fall_damage_add_percent = 200,
+	    on_place = spikes.protect_and_rotate
     }
     
     minetest.register_node("spikes:spike_"..tree.name:remove_modname_prefix(), spikes)

mods/spikes/ownership.lua

@@ -0,0 +1,43 @@
+-- simple function to check for ownership of a node before placing it.
+
+local S
+if spikes.intllib_modpath then
+    dofile(spikes.intllib_modpath.."/intllib.lua")
+    S = intllib.Getter(minetest.get_current_modname())
+else
+    S = function ( s ) return s end
+end
+
+function spikes: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 = S("someone")
+				end
+			end
+		end
+
+	elseif type(isprotect)=="function" then 					-- glomie's protection mod
+		if not isprotect(5, pos, placer) then
+			ownername = S("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 = S("someone")
+		end
+	end
+
+	if ownername ~= false then
+		minetest.chat_send_player( placer:get_player_name(), S("Sorry, %s owns that spot."):format(ownername) )
+		return true
+	else
+		return false
+	end
+end
+