Play sound when hit if "sounds" mod available

README.md

@@ -16,6 +16,11 @@ An explosive nuisance for [Minetest](http://minetest.net/).
 
 Settings documented in [reference][].
 
+### Requirements:
+
+- Depends: default, tnt
+- Optional depends: nether, sounds
+
 ### Links:
 
 - [![ContentDB](https://img.shields.io/static/v1?label=ContentDB&message=sneeker&color=%23375a7f&logo=minetest)](https://content.minetest.net/packages/AntumDeluge/sneeker/)

TODO.txt

@@ -1,5 +1,4 @@
 
 TODO:
-- add sound when hit
 - add version using mobs_redo API
 - add version using cmer API

changelog.txt

@@ -1,4 +1,8 @@
 
+v1.1
+----
+- added sound when hit
+
 v1.0
 ----
 - forked & renamed from Rui's original "creeper" mod

entity.lua

@@ -1,4 +1,12 @@
 
+local sounds_enabled = core.get_modpath("sounds") ~= nil
+local hit_sound
+
+if sounds_enabled then
+	hit_sound = "sounds_entity_hit"
+end
+
+
 local function jump(self, pos, direction)
 	local velocity = self.object:get_velocity()
 	if core.registered_nodes[core.get_node(pos).name].climbable then
@@ -348,6 +356,10 @@ def.on_step = function(self, dtime)
 end
 
 def.on_punch = function(self, puncher, time_from_last_punch, tool_capabilities, dir)
+	if hit_sound then
+		core.sound_play(hit_sound, {object=self.object}, parameters, true)
+	end
+
 	if self.knockback == false then
 		local knockback_level = self.knockback_level
 		self.object:set_velocity({x=dir.x*knockback_level, y=3, z=dir.z*knockback_level})

mod.conf

@@ -4,4 +4,4 @@ description = An explosive nuisance.
 version = 1.0
 author = Rui
 depends = default, tnt
-optional_depends = nether
+optional_depends = nether, sounds