Sound API: Add fading sounds

4 files changed, 18 insertions, 0 deletions

diff --git a/src/script/common/c_content.cpp b/src/script/common/c_content.cpp
index 5fe5af58d..8696ad7cb 100644
--- a/src/script/common/c_content.cpp
+++ b/src/script/common/c_content.cpp
@@ -680,6 +680,7 @@ void read_server_sound_params(lua_State *L, int index,
 	if(lua_istable(L, index)){
 		getfloatfield(L, index, "gain", params.gain);
 		getstringfield(L, index, "to_player", params.to_player);
+		getfloatfield(L, index, "fade", params.fade);
 		lua_getfield(L, index, "pos");
 		if(!lua_isnil(L, -1)){
 			v3f p = read_v3f(L, -1)*BS;
@@ -712,6 +713,7 @@ void read_soundspec(lua_State *L, int index, SimpleSoundSpec &spec)
 	} else if(lua_istable(L, index)){
 		getstringfield(L, index, "name", spec.name);
 		getfloatfield(L, index, "gain", spec.gain);
+		getfloatfield(L, index, "fade", spec.fade);
 	} else if(lua_isstring(L, index)){
 		spec.name = lua_tostring(L, index);
 	}
diff --git a/src/script/common/c_converter.h b/src/script/common/c_converter.h
index a5fbee765..b0f61a8ca 100644
--- a/src/script/common/c_converter.h
+++ b/src/script/common/c_converter.h
@@ -77,6 +77,8 @@ void               setfloatfield(lua_State *L, int table,
                              const char *fieldname, float value);
 void               setboolfield(lua_State *L, int table,
                              const char *fieldname, bool value);
+void               setstringfield(lua_State *L, int table,
+                             const char *fieldname, const char *value);
 
 v3f                 checkFloatPos       (lua_State *L, int index);
 v2f                 check_v2f           (lua_State *L, int index);
diff --git a/src/script/lua_api/l_server.cpp b/src/script/lua_api/l_server.cpp
index 7b723d14c..ea993d7b7 100644
--- a/src/script/lua_api/l_server.cpp
+++ b/src/script/lua_api/l_server.cpp
@@ -455,6 +455,16 @@ int ModApiServer::l_sound_stop(lua_State *L)
 	return 0;
 }
 
+int ModApiServer::l_sound_fade(lua_State *L)
+{
+	NO_MAP_LOCK_REQUIRED;
+	s32 handle = luaL_checkinteger(L, 1);
+	float step = luaL_checknumber(L, 2);
+	float gain = luaL_checknumber(L, 3);
+	getServer(L)->fadeSound(handle, step, gain);
+	return 0;
+}
+
 // is_singleplayer()
 int ModApiServer::l_is_singleplayer(lua_State *L)
 {
@@ -518,6 +528,7 @@ void ModApiServer::Initialize(lua_State *L, int top)
 	API_FCT(show_formspec);
 	API_FCT(sound_play);
 	API_FCT(sound_stop);
+	API_FCT(sound_fade);
 
 	API_FCT(get_player_information);
 	API_FCT(get_player_privs);
diff --git a/src/script/lua_api/l_server.h b/src/script/lua_api/l_server.h
index 3a4a917c0..251a0ce89 100644
--- a/src/script/lua_api/l_server.h
+++ b/src/script/lua_api/l_server.h
@@ -68,6 +68,9 @@ private:
 	// sound_stop(handle)
 	static int l_sound_stop(lua_State *L);
 
+	// sound_fade(handle, step, gain)
+	static int l_sound_fade(lua_State *L);
+
 	// get_player_privs(name, text)
 	static int l_get_player_privs(lua_State *L);