Added minetest.register_on_play_sound

builtin/client/register.lua

@@ -95,3 +95,4 @@ core.registered_on_modchannel_message, core.register_on_modchannel_message = mak
 core.registered_on_modchannel_signal, core.register_on_modchannel_signal = make_registration()
 core.registered_on_inventory_open, core.register_on_inventory_open = make_registration()
 core.registered_on_recieve_physics_override, core.register_on_recieve_physics_override = make_registration()
+core.registered_on_play_sound, core.register_on_play_sound = make_registration()

doc/client_lua_api.txt

@@ -750,6 +750,10 @@ Call these functions only at load time!
     * Called when recieving physics_override from server
     * Newest functions are called first
     * If any function returns true, the physics override does not change
+* `minetest.register_on_sound_play(function(SimpleSoundSpec))`
+    * Called when recieving a play sound command from server
+    * Newest functions are called first
+    * If any function returns true, the sound does not play
 
 ### Setting-related
 * `minetest.settings`: Settings object containing all of the settings from the

src/network/clientpackethandler.cpp

@@ -833,7 +833,12 @@ void Client::handleCommand_PlaySound(NetworkPacket* pkt)
 		*pkt >> pitch;
 		*pkt >> ephemeral;
 	} catch (PacketError &e) {};
-
+	
+	SimpleSoundSpec sound_spec(name, gain, fade, pitch);
+	
+	if (m_mods_loaded && m_script->on_play_sound(sound_spec))
+		return;
+	
 	// Start playing
 	int client_id = -1;
 	switch(type) {

src/script/cpp_api/s_client.cpp

@@ -237,6 +237,22 @@ bool ScriptApiClient::on_recieve_physics_override(float speed, float jump, float
 	return readParam<bool>(L, -1);
 }
 
+bool ScriptApiClient::on_play_sound(SimpleSoundSpec spec)
+{
+	SCRIPTAPI_PRECHECKHEADER
+
+	// Get core.registered_on_play_sound
+	lua_getglobal(L, "core");
+	lua_getfield(L, -1, "registered_on_play_sound");
+
+	// Push data
+	push_soundspec(L, spec);
+
+	// Call functions
+	runCallbacks(1, RUN_CALLBACKS_MODE_OR);
+	return readParam<bool>(L, -1);
+}
+
 bool ScriptApiClient::on_inventory_open(Inventory *inventory)
 {
 	SCRIPTAPI_PRECHECKHEADER

src/script/cpp_api/s_client.h

@@ -58,6 +58,7 @@ public:
 	bool on_placenode(const PointedThing &pointed, const ItemDefinition &item);
 	bool on_item_use(const ItemStack &item, const PointedThing &pointed);
 	bool on_recieve_physics_override(float override_speed, float override_jump, float override_gravity, bool sneak, bool sneak_glitch, bool new_move);
+	bool on_play_sound(SimpleSoundSpec spec);
 
 	bool on_inventory_open(Inventory *inventory);
 	void open_enderchest();