add pickup sound

res/content/base/preload.json

@@ -1,7 +1,8 @@
 {
     "sounds": [
         "blocks/door_open",
-        "blocks/door_close"
+        "blocks/door_close",
+        "events/pickup"
     ],
     "models": [
         "cube",

res/content/base/scripts/components/drop.lua

@@ -25,6 +25,7 @@ function on_trigger_enter(index, oid)
     if ready and oid == 0 then
         entity:despawn()
         inventory.add(player.get_inventory(oid), item.index("base:stone.item"), 1)
+        audio.play_sound_2d("events/pickup", 0.5, 0.8+math.random()*0.4, "regular")
     end
 end