split it into separate files

scripts/button.lua

@@ -0,0 +1,51 @@
+local pgad_rules = {
+    {x = 1, y = 0, z = 0},
+    {x = -1, y = 0, z = 0},
+    {x = 0, y = 1, z = 0},
+    {x = 0, y = -1, z = 0},
+    {x = 0, y = 0, z = 1},
+    {x = 0, y = 0, z = -1}
+}
+stone_sounds = {}
+stone_sounds.footstep = {name = "stone_walk", gain = 1.0}
+stone_sounds.dug = {name = "stone_break", gain = 1.0}
+stone_sounds.place = {name = "block_place", gain = 1.0}
+glass_sounds = {}
+glass_sounds.footstep = {name = "glass_walk", gain = 1.0}
+glass_sounds.dug = {name = "glass_break", gain = 1.0}
+glass_sounds.place = {name = "block_place", gain = 1.0}
+wood_sounds = {}
+wood_sounds.footstep = {name = "wood_walk", gain = 1.0}
+wood_sounds.dug = {name = "wood_break", gain = 1.0}
+wood_sounds.place = {name = "block_place", gain = 1.0}
+
+minetest.register_node(
+    "portalgun:button",
+    {
+        description = "Button",
+        tiles = {"portalgun_bu.png"},
+        groups = {cracky = 3, mesecon = 1},
+        paramtype = "light",
+        paramtype2 = "facedir",
+        sunlight_propagates = true,
+        selection_box = {type = "fixed", fixed = {-0.2, -0.5, -0.2, 0.2, 0.85, 0.2}},
+        sounds = stone_sounds,
+        mesecons = {receptor = {state = "off"}},
+        on_rightclick = function(pos, node, clicker)
+            mesecon.receptor_on(pos)
+            minetest.get_node_timer(pos):start(2)
+            minetest.sound_play("button_press", {pos = pos, max_hear_distance = 10, gain = 1})
+        end,
+        on_timer = function(pos, elapsed)
+            mesecon.receptor_off(pos)
+        end,
+        drawtype = "nodebox",
+        node_box = {
+            type = "fixed",
+            fixed = {
+                {-0.25, -0.5, -0.25, 0.25, 0.7, 0.25},
+                {-0.125, 0.5, -0.125, 0.125, 0.77, 0.125}
+            }
+        }
+    }
+)