Fix SceneManager base_address vs address

Author: AlexKnauth

src/game_engine/unity/scene.rs

@@ -91,7 +91,7 @@ impl SceneManager {
         let is_64_bit = macho::is_64_bit(process, macho::scan_macho_page(process, unity_player)?)?;
         let is_il2cpp = false;
 
-        let address = if is_64_bit {
+        let base_address: Address = if is_64_bit {
             // RIP-relative addressing
             // 7 is the offset to the ???????? question marks in the signature
             let addr = SIG_64_BIT_DYLIB.scan_process_range(process, unity_player)? + 7;
@@ -103,12 +103,23 @@ impl SceneManager {
 
         let offsets = Offsets::new(is_64_bit);
 
-        Some(Self {
-            is_64_bit,
-            is_il2cpp,
-            address,
-            offsets,
-        })
+        // Dereferencing one level because this pointer never changes as long as the game is open.
+        // It might not seem a lot, but it helps make things a bit faster when querying for scene stuff.
+        let address: Address = match is_64_bit {
+            true => process.read::<Address64>(base_address).ok()?.into(),
+            false => process.read::<Address32>(base_address).ok()?.into(),
+        };
+
+        if address.is_null() {
+            None
+        } else {
+            Some(Self {
+                is_64_bit,
+                is_il2cpp,
+                address,
+                offsets,
+            })
+        }
     }
 
     /// Attaches to the scene manager in the given process.