Add support for Starfield

As far as loot-condition-interpreter is concerned, it's not really any
different from Fallout 4.

ffi/src/constants.rs

@@ -72,3 +72,7 @@ pub static LCI_GAME_SKYRIM_VR: c_int = 3;
 /// Game code for Fallout 4 VR.
 #[no_mangle]
 pub static LCI_GAME_FALLOUT_4_VR: c_int = 7;
+
+/// Game code for Starfield.
+#[no_mangle]
+pub static LCI_GAME_STARFIELD: c_int = 9;

ffi/src/helpers.rs

@@ -42,6 +42,7 @@ pub fn map_game_type(game_type: c_int) -> Result<GameType, c_int> {
         x if x == LCI_GAME_FALLOUT_NV => Ok(GameType::FalloutNV),
         x if x == LCI_GAME_FALLOUT_4 => Ok(GameType::Fallout4),
         x if x == LCI_GAME_FALLOUT_4_VR => Ok(GameType::Fallout4VR),
+        x if x == LCI_GAME_STARFIELD => Ok(GameType::Starfield),
         _ => Err(LCI_ERROR_INVALID_ARGS),
     }
 }

ffi/tests/ffi.cpp

@@ -21,6 +21,7 @@ void test_game_id_values() {
   assert(LCI_GAME_FALLOUT_NV == 5);
   assert(LCI_GAME_FALLOUT_4 == 6);
   assert(LCI_GAME_FALLOUT_4_VR == 7);
+  assert(LCI_GAME_STARFIELD == 9);
 }
 
 void test_lci_condition_parse() {