assembled to single file, working recipe

init.lua

@@ -4,7 +4,84 @@ onetime_waypoint = {
 }
 
 local modpath = minetest.get_modpath("onetime_waypoint")
+local core_material = minetest.settings:get("onetime_waypoint.core") or "default:copper_ingot"
 
-dofile(modpath.."/lua/data.lua")
-dofile(modpath.."/lua/craft.lua")
-dofile(modpath.."/lua/items.lua")
+local saver = datasaver:new("onetime_waypoint", "waypoints")
+local waypoints = saver:load() or {}
+
+function onetime_waypoint:set_waypoint(playername, waypoint_position)
+    waypoints[playername] = waypoint_position
+    saver:save(waypoints)
+end
+
+function onetime_waypoint:get_waypoint(playername)
+    return waypoints[playername]
+end
+
+local function particle_effects(pos, colour)
+    local radius = 2
+    minetest.add_particlespawner({
+            amount = 80,
+            time = 1,
+            minpos = {x=pos.x-radius/2, y=pos.y-radius/2, z=pos.z-radius/2}, 
+            maxpos = {x=pos.x+radius/2, y=pos.y+radius/2, z=pos.z+radius/2}, 
+            minlevel = {x=-0, y=-0, z=-0}, 
+            maxlevel = {x=1, y=1, z=1}, 
+            minacc = {x=-0.5,y=5,z=-0.5}, 
+            maxacc = {x=0.5,y=5,z=0.5}, 
+            minexptime = 0.1, 
+            maxexptime = 1, 
+            minsieze = 3,
+            maxsieze = 4,
+            collisiondetection = false,
+            texture = "tnt_smoke.png^[colorize:"..colour..":80:100"
+    })
+
+    minetest.sound_play("onetime_waypoint_pom", {
+            pos = pos,
+            max_hear_distance = 20,
+    })
+end
+
+minetest.register_craftitem("onetime_waypoint:waypoint", {
+    inventory_image = "default_stick.png^[colorize:yellow:140",
+    liquids_pointable = true,
+    description = "Waypointer",
+
+    on_place = function(itemstack, pointer, pointedthing)
+        local playername = pointer:get_player_name()
+        local pos = pointedthing.above
+
+        onetime_waypoint:set_waypoint(playername, pos)
+        particle_effects(pos, "purple")
+        minetest.chat_send_player(playername, "Waypoint set at "..minetest.pos_to_string(pos))
+        itemstack:take_item()
+        return itemstack
+    end,
+
+    on_use = function(itemstack, pointer, pointedthing)
+        local playername = pointer:get_player_name()
+        local pos = onetime_waypoint:get_waypoint(playername)
+
+        if pos then
+            pointer:setpos(pos)
+            minetest.chat_send_player(playername, "Waypoint dissolved!")
+            particle_effects(pos, "red")
+
+            onetime_waypoint:set_waypoint(playername)
+            itemstack:take_item()
+            return itemstack
+        else
+            minetest.chat_send_player(playername, "No waypoint set yet!")
+        end
+    end,
+})
+
+minetest.register_craft({
+    output = "onetime_waypoint:waypoint",
+    recipe = {
+        {"", "default:torch", ""},
+        {"", core_material, ""},
+        {"default:torch", "", "default:torch"},
+    }
+})

lua/craft.lua

@@ -1,10 +0,0 @@
-local core_material = minetest.settings:get("onetime_waypoint.core") or "default:copper_ingot"
-
-minetest.register_craft({
-    output = "onetime_waypoint:waypoint",
-    recipe = {
-        {"", "default:torch", ""},
-        {"", core_material, ""},
-        {"default:torch", "", "default:torch"},
-    }
-})

lua/data.lua

@@ -1,11 +0,0 @@
-local saver = datasaver:new("onetime_waypoint", "waypoints")
-local waypoints = saver:load()
-
-function onetime_waypoint:set_waypoint(playername, waypoint_position)
-    waypoints[playername] = waypoint_position
-    saver:save(waypoints)
-end
-
-function onetime_waypoint:get_waypoint(playername)
-    return waypoints[playername]
-end

lua/items.lua

@@ -1,61 +0,0 @@
-local function particle_effects(pos, colour)
-    local radius = 2
-    minetest.add_particlespawner({
-            amount = 80,
-            time = 1,
-            minpos = {x=pos.x-radius/2, y=pos.y-radius/2, z=pos.z-radius/2}, 
-            maxpos = {x=pos.x+radius/2, y=pos.y+radius/2, z=pos.z+radius/2}, 
-            minlevel = {x=-0, y=-0, z=-0}, 
-            maxlevel = {x=1, y=1, z=1}, 
-            minacc = {x=-0.5,y=5,z=-0.5}, 
-            maxacc = {x=0.5,y=5,z=0.5}, 
-            minexptime = 0.1, 
-            maxexptime = 1, 
-            minsieze = 3,
-            maxsieze = 4,
-            collisiondetection = false,
-            texture = "tnt_smoke.png^[colorize:"..colour..":80:100"
-    })
-
-    minetest.sound_play("onetime_waypoint_pom", {
-            pos = pos,
-            max_hear_distance = 20,
-    })
-end
-
-minetest.register_craftitem("onetime_waypoint:waypoint", {
-    inventory_image = "default_stick.png^[colorize:yellow:140",
-    stack_max = 1,
-    liquids_pointable = true,
-
-    on_place = function(itemstack, pointer, pointedthing)
-        -- check protection
-        local playername = pointer:get_player_name()
-        local pos = pointedthing.above
-
-        if not minetest.is_protected(pos, playername) then
-            onetime_waypoint:set_waypoint(playername, pos)
-            particle_effects(pos, "purple")
-            minetest.chat_send_player(playername, "Waypoint set at "..minetest.pos_to_string(pos))
-            itemstack:take_item()
-            return itemstack
-        end
-    end,
-
-    on_use = function(itemstack, pointer, pointedthing)
-        local playername = pointer:get_player_name()
-        local pos = onetime_waypoint:get_waypoint(playername)
-
-        if pos then
-            pointer:setpos(pos)
-            minetest.chat_send_player(playername, "Waypoint dissolved!")
-            particle_effects(pos, "red")
-
-            onetime_waypoint:set_waypoint(playername)
-            itemstack:take_item()
-            return itemstack
-        else
-            minetest.chat_send_player(playername, "No waypoint set yet!")
-        end
-    end,
-})