From b46f4217aee762c5b8c7ceb0f2a2332227c4a7f8 Mon Sep 17 00:00:00 2001
From: RealBadAngel <maciej.kasatkin@o2.pl>
Date: Mon, 26 May 2014 05:41:40 +0200
Subject: [PATCH] Item names hud element (based on 4aiman mod)

---
 init.lua       |  1 +
 item_names.lua | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 57 insertions(+)
 create mode 100644 item_names.lua

diff --git a/init.lua b/init.lua
index 1800ba9..f91e048 100644
--- a/init.lua
+++ b/init.lua
@@ -44,4 +44,5 @@ dofile(modpath.."/internal.lua")
 dofile(modpath.."/callbacks.lua")
 dofile(modpath.."/register.lua")
 dofile(modpath.."/bags.lua")
+dofile(modpath.."/item_names.lua")
 dofile(modpath.."/waypoints.lua")
diff --git a/item_names.lua b/item_names.lua
new file mode 100644
index 0000000..2ab233e
--- /dev/null
+++ b/item_names.lua
@@ -0,0 +1,56 @@
+local wield = {}
+local huds = {}
+local dtimes = {}
+local dlimit = 3  -- hud will be hidden after this much seconds
+local airhudmod = minetest.get_modpath("4air")
+
+local function get_desc(item)
+    if minetest.registered_nodes[item] then return minetest.registered_nodes[item]["description"] end
+    if minetest.registered_items[item] then return minetest.registered_items[item]["description"] end
+    if minetest.registered_craftitems[item] then return minetest.registered_craftitems[item]["description"] end
+    if minetest.registered_tools[item] then return minetest.registered_tools[item]["description"] end
+    return ""
+end
+
+minetest.register_on_joinplayer(function(player)
+	minetest.after(0.0, function()
+	local player_name = player:get_player_name() 
+	local off = {x=0, y=-70}
+	if airhudmod then 
+		off.y=off.y-20
+	end
+	huds[player_name] = player:hud_add({
+		hud_elem_type = "text",
+		position = {x=0.5, y=1},
+		offset = off,
+		alignment = {x=0, y=0},
+		number = 0xFFFFFF ,
+		text = "",
+	})
+	print(dump("item hud id: "..huds[player_name]))
+	end)
+end)
+
+minetest.register_globalstep(function(dtime)
+	local players = minetest.get_connected_players()
+	for i,player in ipairs(players) do
+		local player_name = player:get_player_name()
+		local wstack = player:get_wielded_item():get_name()
+
+		if dtimes[player_name] and dtimes[player_name] < dlimit then
+			dtimes[player_name] = dtimes[player_name] + dtime
+			if dtimes[player_name] > dlimit and huds[player_name] then
+				player:hud_change(huds[player_name], 'text', "")
+			end
+		end
+
+		if wstack ~= wield[player_name] then
+			wield[player_name] = wstack
+			local desc = get_desc(wstack)
+			dtimes[player_name] = 0
+			if huds[player_name] then 
+				player:hud_change(huds[player_name], 'text', desc)
+			end
+		end
+	end
+end)