Add compass mod

mods/compass/depends.txt

@@ -0,0 +1,2 @@
+default
+redstone

mods/compass/init.lua

@@ -0,0 +1,72 @@
+
+local default_spawn_settings = minetest.setting_get("static_spawnpoint")
+
+minetest.register_globalstep(function(dtime)
+	local players  = minetest.get_connected_players()
+	for i,player in ipairs(players) do
+		local function has_compass(player)
+			for _,stack in ipairs(player:get_inventory():get_list("main")) do
+				if minetest.get_item_group(stack:get_name(), "compass") ~= 0 then
+					return true
+				end
+			end
+			return false
+		end
+		if has_compass(player) then
+			local spawn = beds_player_spawns[player:get_player_name()] or
+			              minetest.setting_get("static_spawnpoint") or
+			              {x=0,y=0,z=0}
+			pos = player:getpos()
+			dir = player:get_look_yaw()
+			local angle_north = math.deg(math.atan2(spawn.x - pos.x, spawn.z - pos.z))
+			if angle_north < 0 then angle_north = angle_north + 360 end
+			angle_dir = 90 - math.deg(dir)
+			local angle_relative = (angle_north - angle_dir) % 360
+			local compass_image = math.floor((angle_relative/30) + 0.5)%12
+
+			for j,stack in ipairs(player:get_inventory():get_list("main")) do
+				if minetest.get_item_group(stack:get_name(), "compass") ~= 0 then
+					player:get_inventory():set_stack("main", j, "compass:"..compass_image)
+				end
+			end
+		end
+	end
+end)
+
+local images = {
+	"compass_0.png",
+	"compass_1.png",
+	"compass_2.png",
+	"compass_3.png",
+	"compass_4.png",
+	"compass_5.png",
+	"compass_6.png",
+	"compass_7.png",
+	"compass_8.png",
+	"compass_9.png",
+	"compass_10.png",
+	"compass_11.png",
+}
+
+local i
+for i,img in ipairs(images) do
+	local inv = 1
+	if i == 1 then
+		inv = 0
+	end
+	minetest.register_tool("compass:"..(i-1), {
+		description = "Compass",
+		inventory_image = img,
+		wield_image = img,
+		groups = {not_in_creative_inventory=inv,compass=1}
+	})
+end
+
+minetest.register_craft({
+	output = 'compass:1',
+	recipe = {
+		{'', 'default:iron_ingot', ''},
+		{'default:iron_ingot', 'redstone:redstone', 'default:iron_ingot'},
+		{'', 'default:iron_ingot', ''}
+	}
+})

mods/default/craftitems.lua

@@ -45,7 +45,7 @@ minetest.register_craftitem("default:clay_lump", {
 })
 
 minetest.register_craftitem("default:iron_ingot", {
-	description = "iron Ingot",
+	description = "Iron Ingot",
 	inventory_image = "default_iron_ingot.png",
 	stack_max = 64,
 })