diff --git a/builtin/game/chatcommands.lua b/builtin/game/chatcommands.lua
index 9856705..b7f228c 100644
--- a/builtin/game/chatcommands.lua
+++ b/builtin/game/chatcommands.lua
@@ -380,7 +380,7 @@ core.register_chatcommand("teleport", {
 			end
 			teleportee = core.get_player_by_name(name)
 			if teleportee then
-				teleportee:setpos(p)
+				teleportee:set_pos(p)
 				return true, "Teleporting to "..core.pos_to_string(p)
 			end
 		end
@@ -393,12 +393,12 @@ core.register_chatcommand("teleport", {
 		if target_name then
 			local target = core.get_player_by_name(target_name)
 			if target then
-				p = target:getpos()
+				p = target:get_pos()
 			end
 		end
 		if teleportee and p then
 			p = find_free_position_near(p)
-			teleportee:setpos(p)
+			teleportee:set_pos(p)
 			return true, "Teleporting to " .. target_name
 					.. " at "..core.pos_to_string(p)
 		end
@@ -417,7 +417,7 @@ core.register_chatcommand("teleport", {
 			teleportee = core.get_player_by_name(teleportee_name)
 		end
 		if teleportee and p.x and p.y and p.z then
-			teleportee:setpos(p)
+			teleportee:set_pos(p)
 			return true, "Teleporting " .. teleportee_name
 					.. " to " .. core.pos_to_string(p)
 		end
@@ -433,12 +433,12 @@ core.register_chatcommand("teleport", {
 		if target_name then
 			local target = core.get_player_by_name(target_name)
 			if target then
-				p = target:getpos()
+				p = target:get_pos()
 			end
 		end
 		if teleportee and p then
 			p = find_free_position_near(p)
-			teleportee:setpos(p)
+			teleportee:set_pos(p)
 			return true, "Teleporting " .. teleportee_name
 					.. " to " .. target_name
 					.. " at " .. core.pos_to_string(p)
@@ -664,7 +664,7 @@ core.register_chatcommand("spawnentity", {
 			return false, "Cannot spawn an unknown entity"
 		end
 		if p == "" then
-			p = player:getpos()
+			p = player:get_pos()
 		else
 			p = core.string_to_pos(p)
 			if p == nil then
diff --git a/builtin/game/falling.lua b/builtin/game/falling.lua
index 4806a74..62b6973 100644
--- a/builtin/game/falling.lua
+++ b/builtin/game/falling.lua
@@ -52,12 +52,12 @@ core.register_entity(":__builtin:falling_node", {
 
 	on_step = function(self, dtime)
 		-- Set gravity
-		local acceleration = self.object:getacceleration()
+		local acceleration = self.object:get_acceleration()
 		if not vector.equals(acceleration, {x = 0, y = -10, z = 0}) then
-			self.object:setacceleration({x = 0, y = -10, z = 0})
+			self.object:set_acceleration({x = 0, y = -10, z = 0})
 		end
 		-- Turn to actual node when colliding with ground, or continue to move
-		local pos = self.object:getpos()
+		local pos = self.object:get_pos()
 		-- Position of bottom center point
 		local bcp = {x = pos.x, y = pos.y - 0.7, z = pos.z}
 		-- 'bcn' is nil for unloaded nodes
@@ -124,10 +124,10 @@ core.register_entity(":__builtin:falling_node", {
 			core.check_for_falling(np)
 			return
 		end
-		local vel = self.object:getvelocity()
+		local vel = self.object:get_velocity()
 		if vector.equals(vel, {x = 0, y = 0, z = 0}) then
-			local npos = self.object:getpos()
-			self.object:setpos(vector.round(npos))
+			local npos = self.object:get_pos()
+			self.object:set_pos(vector.round(npos))
 		end
 	end
 })
diff --git a/builtin/game/item.lua b/builtin/game/item.lua
index 8fbe5b6..591531d 100644
--- a/builtin/game/item.lua
+++ b/builtin/game/item.lua
@@ -33,7 +33,7 @@ function core.get_pointed_thing_position(pointed_thing, above)
 		-- The position where a node would be dug
 		return pointed_thing.under
 	elseif pointed_thing.type == "object" then
-		return pointed_thing.ref and pointed_thing.ref:getpos()
+		return pointed_thing.ref and pointed_thing.ref:get_pos()
 	end
 end
 
@@ -331,7 +331,7 @@ function core.item_place_node(itemstack, placer, pointed_thing, param2,
 	-- Calculate the direction for furnaces and chests and stuff
 	elseif (def.paramtype2 == "facedir" or
 			def.paramtype2 == "colorfacedir") and not param2 then
-		local placer_pos = placer and placer:getpos()
+		local placer_pos = placer and placer:get_pos()
 		if placer_pos then
 			local dir = {
 				x = above.x - placer_pos.x,
@@ -478,7 +478,7 @@ function core.do_item_eat(hp_change, replace_with_item, itemstack, user, pointed
 				if inv and inv:room_for_item("main", {name=replace_with_item}) then
 					inv:add_item("main", replace_with_item)
 				else
-					local pos = user:getpos()
+					local pos = user:get_pos()
 					pos.y = math.floor(pos.y + 0.5)
 					core.add_item(pos, replace_with_item)
 				end
diff --git a/builtin/game/item_entity.lua b/builtin/game/item_entity.lua
index 4dca611..a330e87 100644
--- a/builtin/game/item_entity.lua
+++ b/builtin/game/item_entity.lua
@@ -152,7 +152,7 @@ core.register_entity(":__builtin:item", {
 			return
 		end
 
-		local vel = self.object:getvelocity()
+		local vel = self.object:get_velocity()
 		local def = node and core.registered_nodes[node.name]
 		local is_moving = (def and not def.walkable) or
 			vel.x ~= 0 or vel.y ~= 0 or vel.z ~= 0
diff --git a/builtin/game/misc.lua b/builtin/game/misc.lua
index 472cb21..e6d16dd 100644
--- a/builtin/game/misc.lua
+++ b/builtin/game/misc.lua
@@ -113,7 +113,7 @@ function core.get_player_radius_area(player_name, radius)
 		return nil
 	end
 
-	local p1 = player:getpos()
+	local p1 = player:get_pos()
 	local p2 = p1
 
 	if radius then
diff --git a/builtin/game/static_spawn.lua b/builtin/game/static_spawn.lua
index 2a5d9b1..fae23ea 100644
--- a/builtin/game/static_spawn.lua
+++ b/builtin/game/static_spawn.lua
@@ -15,7 +15,7 @@ local function put_player_in_spawn(player_obj)
 	end
 	core.log("action", "Moving " .. player_obj:get_player_name() ..
 		" to static spawnpoint at " .. core.pos_to_string(static_spawnpoint))
-	player_obj:setpos(static_spawnpoint)
+	player_obj:set_pos(static_spawnpoint)
 	return true
 end