diff --git a/functions.lua b/functions.lua
index 6044366..aed1122 100644
--- a/functions.lua
+++ b/functions.lua
@@ -1,13 +1,13 @@
 -- Functions for sneeker mod
 
 
-local log_mods = minetest.settings:get_bool('log_mods')
+local log_mods = core.settings:get_bool('log_mods')
 
 
 -- Displays a message in log output
 function sneeker.log(message)
 	if log_mods then
-		minetest.log('action', '[' .. sneeker.modname .. '] ' .. message)
+		core.log('action', '[' .. sneeker.modname .. '] ' .. message)
 	end
 end
 
@@ -20,7 +20,7 @@ end
 
 -- Spawns a sneeker entity
 function sneeker.spawn(pos)
-	minetest.add_entity(pos, sneeker.mob_name)
+	core.add_entity(pos, sneeker.mob_name)
 	sneeker.log_debug('Spawned entity "' .. sneeker.mob_name .. '" at ' .. tostring(pos.x) .. ',' .. tostring(pos.y))
 end
 
diff --git a/init.lua b/init.lua
index 00b3877..f6febe6 100644
--- a/init.lua
+++ b/init.lua
@@ -2,11 +2,11 @@
 
 
 sneeker = {}
-sneeker.modname = minetest.get_current_modname()
-sneeker.modpath = minetest.get_modpath(sneeker.modname)
+sneeker.modname = core.get_current_modname()
+sneeker.modpath = core.get_modpath(sneeker.modname)
 
-if minetest.settings:get_bool('log_mods') then
-	minetest.log('action', 'Loading mod "' .. sneeker.modname .. '" ...')
+if core.settings:get_bool('log_mods') then
+	core.log('action', 'Loading mod "' .. sneeker.modname .. '" ...')
 end
 
 dofile(sneeker.modpath .. '/settings.lua')
@@ -28,21 +28,21 @@ end
 
 local function jump(self,pos,direction)
 	local velocity = self.object:getvelocity()
-	if minetest.registered_nodes[minetest.get_node(pos).name].climbable then
+	if core.registered_nodes[core.get_node(pos).name].climbable then
 		self.object:setvelocity({x=velocity.x,y=4,z=velocity.z})
 		return
 	end
 	
 	local spos = {x=pos.x+direction.x,y=pos.y,z=pos.z+direction.z}
-	local node = minetest.get_node_or_nil(spos)
+	local node = core.get_node_or_nil(spos)
 	spos.y = spos.y+1
-	local node2 = minetest.get_node_or_nil(spos)
+	local node2 = core.get_node_or_nil(spos)
 	local def,def2 = {}
 	if node and node.name then
-		def = minetest.registered_items[node.name]
+		def = core.registered_items[node.name]
 	end
 	if node2 and node2.name then
-		def2 = minetest.registered_items[node2.name]
+		def2 = core.registered_items[node2.name]
 	end
 	if def and def.walkable
 	and def2 and not def2.walkable
@@ -105,7 +105,7 @@ def.on_activate = function(self,staticdata)
 	self.state = math.random(1,2)
 	self.old_y = self.object:getpos().y
 	
-	local data = minetest.deserialize(staticdata)
+	local data = core.deserialize(staticdata)
 	if data and type(data) == 'table' then
 		if data.powered == true then
 			self.powered = true
@@ -129,7 +129,7 @@ def.on_step = function(self, dtime)
 	
 	local pos = self.object:getpos()
 	local yaw = self.object:getyaw()
-	local inside = minetest.get_objects_inside_radius(pos,10)
+	local inside = core.get_objects_inside_radius(pos,10)
 	local walk_speed = self.walk_speed
 	local animation = self.animation
 	local anim_speed = self.animation_speed
@@ -159,7 +159,7 @@ def.on_step = function(self, dtime)
 	
 	if self.chase and self.visualx < 2 then
 		if self.hiss == false then
-			minetest.sound_play('sneeker_hiss',{pos=pos,gain=1.5,max_hear_distance=2*64})
+			core.sound_play('sneeker_hiss',{pos=pos,gain=1.5,max_hear_distance=2*64})
 		end
 		self.visualx = self.visualx+0.05
 		self.object:set_properties({
@@ -215,7 +215,7 @@ def.on_step = function(self, dtime)
 			local direction = self.direction
 			local npos = {x=pos.x+direction.x,y=pos.y+0.2,z=pos.z+direction.z}
 			if velocity.x == 0 or velocity.z == 0
-			or minetest.registered_nodes[minetest.get_node(npos).name].walkable then
+			or core.registered_nodes[core.get_node(npos).name].walkable then
 				local select_turn = math.random(1,2)
 				if select_turn == 1 then
 					self.turn = 'left'
@@ -241,7 +241,7 @@ def.on_step = function(self, dtime)
 		
 		self.turn = 'straight'
 		
-		local inside_2 = minetest.get_objects_inside_radius(pos,2)
+		local inside_2 = core.get_objects_inside_radius(pos,2)
 		
 		-- Boom
 		if #inside_2 ~= 0 then
@@ -251,7 +251,7 @@ def.on_step = function(self, dtime)
 					if self.visualx >= 2 then
 						self.object:remove()
 						sneeker.boom(pos,self.powered)
-						minetest.sound_play('sneeker_explode',{pos=pos,gain=1.5,max_hear_distance=2*64})
+						core.sound_play('sneeker_explode',{pos=pos,gain=1.5,max_hear_distance=2*64})
 					end
 				end
 			end
@@ -299,8 +299,8 @@ def.on_step = function(self, dtime)
 	end
 	
 	-- Swim
-	local node = minetest.get_node(pos)
-	if minetest.get_item_group(node.name,'water') ~= 0 then
+	local node = core.get_node(pos)
+	if core.get_item_group(node.name,'water') ~= 0 then
 		self.object:setacceleration({x=0,y=1,z=0})
 		local velocity = self.object:getvelocity()
 		if self.object:getvelocity().y > 5 then
@@ -318,7 +318,7 @@ def.on_punch = function(self,puncher,time_from_last_punch,tool_capabilities,dir)
 		local knockback_level = self.knockback_level
 		self.object:setvelocity({x=dir.x*knockback_level,y=3,z=dir.z*knockback_level})
 		self.knockback = true
-		minetest.after(0.6,function()
+		core.after(0.6,function()
 			self.knockback = false
 		end)
 	end
@@ -327,24 +327,24 @@ def.on_punch = function(self,puncher,time_from_last_punch,tool_capabilities,dir)
 		local x = 1/math.random(1,5)*dir.x
 		local z = 1/math.random(1,5)*dir.z
 		local p = {x=pos.x+x,y=pos.y,z=pos.z+z}
-		local node = minetest.get_node_or_nil(p)
+		local node = core.get_node_or_nil(p)
 		if node == nil or not node.name or node.name ~= 'air' then
 			p = pos
 		end
-		local obj = minetest.add_item(p, {name='tnt:gunpowder',count=math.random(0,2)})
+		local obj = core.add_item(p, {name='tnt:gunpowder',count=math.random(0,2)})
 	end
 end
 
 def.get_staticdata = function(self)
-	return minetest.serialize({
+	return core.serialize({
 		powered = self.powered
 	})
 end
 
-minetest.register_entity(sneeker.mob_name, def)
+core.register_entity(sneeker.mob_name, def)
 
-if minetest.get_modpath('spawneggs') and minetest.get_modpath('tnt') then
-	minetest.register_craftitem(sneeker.spawnegg_name, {
+if core.get_modpath('spawneggs') and core.get_modpath('tnt') then
+	core.register_craftitem(sneeker.spawnegg_name, {
 		description = 'Sneeker Spawn Egg',
 		inventory_image = 'sneeker_spawnegg.png',
 		stack_max = 64,
@@ -352,8 +352,8 @@ if minetest.get_modpath('spawneggs') and minetest.get_modpath('tnt') then
 			if pointed_thing.type == 'node' then
 				local pos = pointed_thing.above
 				pos.y = pos.y+1
-				minetest.add_entity(pos, sneeker.mob_name)
-				if not minetest.settings:get_bool('creative_mode') then
+				core.add_entity(pos, sneeker.mob_name)
+				if not core.settings:get_bool('creative_mode') then
 					itemstack:take_item()
 				end
 				return itemstack
@@ -361,7 +361,7 @@ if minetest.get_modpath('spawneggs') and minetest.get_modpath('tnt') then
 		end
 	})
 	
-	minetest.register_craft({
+	core.register_craft({
 		output = sneeker.spawnegg_name,
 		type = 'shapeless',
 		recipe = {
@@ -369,5 +369,5 @@ if minetest.get_modpath('spawneggs') and minetest.get_modpath('tnt') then
 		},
 	})
 	
-	minetest.register_alias('spawneggs:sneeker', sneeker.spawnegg_name)
+	core.register_alias('spawneggs:sneeker', sneeker.spawnegg_name)
 end
diff --git a/settings.lua b/settings.lua
index 5c10074..1916d2b 100644
--- a/settings.lua
+++ b/settings.lua
@@ -1,7 +1,7 @@
 -- Settings for sneeker mod
 
 
-sneeker.debug = minetest.settings:get_bool('enable_debug_mods')
+sneeker.debug = core.settings:get_bool('enable_debug_mods')
 if sneeker.debug == nil then
 	sneeker.debug = false
 end
diff --git a/spawn.lua b/spawn.lua
index 14b821b..d48e32d 100644
--- a/spawn.lua
+++ b/spawn.lua
@@ -5,10 +5,10 @@ local time_min = 60
 local time_hr = time_min * 60
 local time_day = time_hr * 24
 
-local spawn_cap = tonumber(minetest.settings:get('sneeker.spawn_cap')) or 10 -- Maximum number of spawns active at one time
-local spawn_chance = tonumber(minetest.settings:get('sneeker.spawn_chance')) or 1000 -- 1/1000 chance of spawn
-local spawn_interval = tonumber(minetest.settings:get('sneeker.spawn_interval')) or time_min * 4 -- Default interval is 4 minutes
-local spawn_maxlight = tonumber(minetest.settings:get('sneeker.spawn_maxlight')) or 5 -- Maximum light of node for spawn
+local spawn_cap = tonumber(core.settings:get('sneeker.spawn_cap')) or 10 -- Maximum number of spawns active at one time
+local spawn_chance = tonumber(core.settings:get('sneeker.spawn_chance')) or 1000 -- 1/1000 chance of spawn
+local spawn_interval = tonumber(core.settings:get('sneeker.spawn_interval')) or time_min * 4 -- Default interval is 4 minutes
+local spawn_maxlight = tonumber(core.settings:get('sneeker.spawn_maxlight')) or 5 -- Maximum light of node for spawn
 
 -- Display spawn chance as percentage in log
 local spawn_chance_percent = math.floor(1 / spawn_chance * 100)
@@ -23,7 +23,7 @@ sneeker.log('Spawn chance: ' .. spawn_chance_percent)
 sneeker.log('Spawn interval: ' .. tostring(spawn_interval) .. ' (' .. tostring(spawn_interval/60) .. ' minute(s))')
 sneeker.log('Maximum light value for spawn: ' .. tostring(spawn_maxlight))
 
-minetest.register_abm({
+core.register_abm({
 	nodenames = {'default:dirt_with_grass', 'default:stone'},
 	neighbors = {'air'},
 	interval = spawn_interval,
@@ -35,7 +35,7 @@ minetest.register_abm({
 		
 		-- Check light value of node
 		pos.y = pos.y+1
-		local node_light = minetest.get_node_light(pos)
+		local node_light = core.get_node_light(pos)
 		
 		-- Debugging spawning
 		sneeker.log_debug('Node light level at ' .. sneeker.get_pos_string(pos) .. ': ' .. tostring(node_light))
@@ -51,18 +51,18 @@ minetest.register_abm({
 		end
 		
 		-- Node must be touching air
-		if minetest.get_node(pos).name ~= 'air' then
+		if core.get_node(pos).name ~= 'air' then
 			return
 		end
 		pos.y = pos.y+1
-		if minetest.get_node(pos).name ~= 'air' then
+		if core.get_node(pos).name ~= 'air' then
 			return
 		end
 		
 		-- Get total count of sneekers in world
 		local count = 0
-		for I in pairs(minetest.luaentities) do
-		    if minetest.luaentities[I].name == sneeker.mob_name then
+		for I in pairs(core.luaentities) do
+		    if core.luaentities[I].name == sneeker.mob_name then
 		        count = count + 1
 		    end
 		end
diff --git a/tnt_function.lua b/tnt_function.lua
index 1e3fd87..d3eb713 100644
--- a/tnt_function.lua
+++ b/tnt_function.lua
@@ -3,15 +3,15 @@
 
 -- From TNT
 local cid_data = {}
-local radius = tonumber(minetest.settings:get('tnt_radius') or 3)
+local radius = tonumber(core.settings:get('tnt_radius') or 3)
 local large_radius = 5
 local loss_prob = {
 	['default:cobble'] = 3,
 	['default:dirt'] = 4,
 }
-minetest.after(0, function()
-	for name, def in pairs(minetest.registered_nodes) do
-		cid_data[minetest.get_content_id(name)] = {
+core.after(0, function()
+	for name, def in pairs(core.registered_nodes) do
+		cid_data[core.get_content_id(name)] = {
 			name = name,
 			drops = def.drops,
 			flammable = def.groups.flammable,
@@ -37,7 +37,7 @@ local function eject_drops(drops, pos, radius)
 				item:set_count(count)
 			end
 			rand_pos(pos, drop_pos, radius)
-			local obj = minetest.add_item(drop_pos, item)
+			local obj = core.add_item(drop_pos, item)
 			if obj then
 				obj:get_luaentity().collect = true
 				obj:setacceleration({x=0, y=-10, z=0})
@@ -65,7 +65,7 @@ local function add_drop(drops, item)
 end
 
 local function destroy(drops, pos, cid)
-	if minetest.is_protected(pos, '') then
+	if core.is_protected(pos, '') then
 		return
 	end
 	local def = cid_data[cid]
@@ -73,9 +73,9 @@ local function destroy(drops, pos, cid)
 		def.on_blast(vector.new(pos), 1)
 		return
 	end
-	minetest.remove_node(pos)
+	core.remove_node(pos)
 	if def then
-		local node_drops = minetest.get_node_drops(def.name, '')
+		local node_drops = core.get_node_drops(def.name, '')
 		for _, item in ipairs(node_drops) do
 			add_drop(drops, item)
 		end
@@ -101,7 +101,7 @@ end
 local function entity_physics(pos, radius)
 	-- Make the damage radius larger than the destruction radius
 	radius = radius * 2
-	local objs = minetest.get_objects_inside_radius(pos, radius)
+	local objs = core.get_objects_inside_radius(pos, radius)
 	for _, obj in pairs(objs) do
 		local obj_pos = obj:getpos()
 		local obj_vel = obj:getvelocity()
@@ -118,7 +118,7 @@ local function entity_physics(pos, radius)
 end
 
 local function add_effects(pos, radius)
-	minetest.add_particlespawner({
+	core.add_particlespawner({
 		amount = 128,
 		time = 1,
 		minpos = vector.subtract(pos, radius / 2),
@@ -149,12 +149,12 @@ local function explode(pos, radius)
 	local drops = {}
 	local p = {}
 
-	local c_air = minetest.get_content_id('air')
-	local c_tnt = minetest.get_content_id('tnt:tnt')
-	local c_tnt_burning = minetest.get_content_id('tnt:tnt_burning')
-	local c_gunpowder = minetest.get_content_id('tnt:gunpowder')
-	local c_gunpowder_burning = minetest.get_content_id('tnt:gunpowder_burning')
-	local c_boom = minetest.get_content_id('tnt:boom')
+	local c_air = core.get_content_id('air')
+	local c_tnt = core.get_content_id('tnt:tnt')
+	local c_tnt_burning = core.get_content_id('tnt:tnt_burning')
+	local c_gunpowder = core.get_content_id('tnt:gunpowder')
+	local c_gunpowder_burning = core.get_content_id('tnt:gunpowder_burning')
+	local c_boom = core.get_content_id('tnt:boom')
 
 	for z = -radius, radius do
 	for y = -radius, radius do
@@ -188,9 +188,9 @@ function sneeker.boom(pos,large)
 	if large then
 		radius = large_radius
 	end
-	minetest.sound_play('sneeker_explode', {pos=pos, gain=1.5, max_hear_distance=2*64})
-	minetest.set_node(pos, {name='tnt:boom'})
-	minetest.get_node_timer(pos):start(0.5)
+	core.sound_play('sneeker_explode', {pos=pos, gain=1.5, max_hear_distance=2*64})
+	core.set_node(pos, {name='tnt:boom'})
+	core.get_node_timer(pos):start(0.5)
 	local drops = explode(pos, radius)
 	entity_physics(pos, radius)
 	eject_drops(drops, pos, radius)