Add support for OpenMW .omwaddon and .omwgame plugins

ffi/src/constants.rs

@@ -76,3 +76,7 @@ pub static LCI_GAME_FALLOUT_4_VR: c_int = 7;
 /// Game code for Starfield.
 #[no_mangle]
 pub static LCI_GAME_STARFIELD: c_int = 9;
+
+/// Game code for OpenMW.
+#[no_mangle]
+pub static LCI_GAME_OPENMW: c_int = 10;

ffi/src/helpers.rs

@@ -33,6 +33,7 @@ fn map_error(err: &Error) -> c_int {
 
 pub fn map_game_type(game_type: c_int) -> Result<GameType, c_int> {
     match game_type {
+        x if x == LCI_GAME_OPENMW => Ok(GameType::OpenMW),
         x if x == LCI_GAME_MORROWIND => Ok(GameType::Morrowind),
         x if x == LCI_GAME_OBLIVION => Ok(GameType::Oblivion),
         x if x == LCI_GAME_SKYRIM => Ok(GameType::Skyrim),

ffi/tests/ffi.cpp

@@ -22,6 +22,7 @@ void test_game_id_values() {
   assert(LCI_GAME_FALLOUT_4 == 6);
   assert(LCI_GAME_FALLOUT_4_VR == 7);
   assert(LCI_GAME_STARFIELD == 9);
+  assert(LCI_GAME_OPENMW == 10);
 }
 
 void test_lci_condition_parse() {