diff --git a/src/fname.rs b/src/fname.rs
index e60d68a..5a48d75 100644
--- a/src/fname.rs
+++ b/src/fname.rs
@@ -17,13 +17,14 @@ pub struct FName {
 }
 
 impl FName {
-    pub fn new(name: &'static str) -> anyhow::Result<Self> {
-        static CACHE: Lazy<Mutex<RefCell<HashMap<&'static str, u32>>>> =
+    pub fn new(name: &str) -> anyhow::Result<Self> {
+        let name = name.to_owned();
+        static CACHE: Lazy<Mutex<RefCell<HashMap<String, u32>>>> =
             Lazy::new(|| Mutex::new(RefCell::new(HashMap::new())));
 
         let cache = CACHE.lock().unwrap();
 
-        let name = match cache.borrow_mut().entry(name) {
+        let name = match cache.borrow_mut().entry(name.clone()) {
             Entry::Occupied(entry) => Self {
                 comparison_index: *entry.get(),
                 number: 0,
@@ -35,7 +36,7 @@ impl FName {
                     .as_names()
                     .unwrap()
                     .enumerate()
-                    .find_map(|(i, entry)| (entry.as_str() == name).then_some(i))
+                    .find_map(|(i, entry)| (entry.as_str() == &name).then_some(i))
                     .context("could not find fname.")? as u32;
 
                 entry.insert(name);
diff --git a/src/lib.rs b/src/lib.rs
index efb7f60..67109c9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -828,6 +828,19 @@ pub mod sdk {
         pub return_type: Option<MethodParameter>,
     }
 
+    impl ClassMethod {
+        pub fn return_tuple(&self) -> Vec<&MethodParameter> {
+            self.parameters
+                .iter()
+                .filter_map(|param| match param {
+                    ParameterKind::Out(param) => Some(param),
+                    _ => None,
+                })
+                .chain(self.return_type.iter())
+                .collect()
+        }
+    }
+
     #[derive(Debug)]
     pub struct Class {
         pub is_class: bool,
diff --git a/src/sdk/output/rust.rs b/src/sdk/output/rust.rs
index 1bccd84..9eef3d8 100644
--- a/src/sdk/output/rust.rs
+++ b/src/sdk/output/rust.rs
@@ -152,11 +152,12 @@ pub fn generate_enum<W: Write>(enm: &Enum, _sdk: &Sdk, w: &mut W) -> anyhow::Res
     Ok(())
 }
 
-pub fn generate_class<W: Write>(class: &Class, _sdk: &Sdk, w: &mut W) -> anyhow::Result<()> {
+pub fn generate_class<W: Write>(class: &Class, sdk: &Sdk, w: &mut W) -> anyhow::Result<()> {
     let Class {
         is_class,
         size,
         full_name,
+        fields,
         ..
     } = class;
 
@@ -210,9 +211,27 @@ impl {name} {{
     pub fn zeroed() -> Self {{
         unsafe {{ core::mem::MaybeUninit::<Self>::zeroed().assume_init() }}
     }}
-}}
 "#
         )?;
+
+        // constructor
+        write!(w, "pub fn new(")?;
+        for field in fields {
+            write!(w, "{}: ", field.name)?;
+            field.ty.rust_type(sdk, w)?;
+            write!(w, ", ")?;
+        }
+        writeln!(
+            w,
+            r#") -> Self {{
+let mut new = Self::zeroed();
+"#
+        )?;
+        for field in fields {
+            writeln!(w, "new.set_{0}({0});", field.name)?;
+        }
+        writeln!(w, "new}}")?;
+        writeln!(w, "}}")?;
     } else {
         writeln!(w, "#[derive(Debug, Eq, PartialEq, Copy, Clone)]")?;
         writeln!(w, "pub struct {name}(pub NonNull<UnsafeCell<u8>>);")?;
@@ -374,21 +393,25 @@ pub fn generate_method<W: Write>(
                 write!(w, ",{}: ", parm.name)?;
                 parm.ty.rust_type(sdk, w)?;
             }
-            crate::sdk::ParameterKind::Out(parm) => {
-                write!(w, ",{}: &mut ", parm.name)?;
-                parm.ty.rust_type(sdk, w)?;
-                write!(w, "/*(OutParm)*/")?;
-            }
             _ => {}
         }
     }
 
     write!(w, ") -> ")?;
-    match &method.return_type {
-        Some(param) => {
+    let return_tuple = method.return_tuple();
+
+    // return tuple
+    if return_tuple.is_empty() {
+        write!(w, "()")?;
+    } else if return_tuple.len() == 1 {
+        return_tuple[0].ty.rust_type(sdk, w)?;
+    } else {
+        write!(w, "(")?;
+        for param in &return_tuple {
             param.ty.rust_type(sdk, w)?;
+            write!(w, ",")?;
         }
-        None => write!(w, "()")?,
+        write!(w, ")")?;
     }
 
     writeln!(w, " {{")?;
@@ -405,10 +428,6 @@ pub fn generate_method<W: Write>(
             crate::sdk::ParameterKind::Default(param) => {
                 writeln!(w, "params.{0} = {0};", param.name)?;
             }
-            crate::sdk::ParameterKind::Out(param) => {
-                // swap so we dont have to worry about Clone or Copy
-                writeln!(w, "core::mem::swap(&mut params.{0}, {0});", param.name)?;
-            }
             _ => {}
         }
     }
@@ -417,21 +436,18 @@ pub fn generate_method<W: Write>(
     writeln!(w, "process_event(self.as_uobject(), func, &mut params);")?;
     writeln!(w, "func.set_function_flags(flags);")?;
 
-    for param in &method.parameters {
-        match param {
-            crate::sdk::ParameterKind::Out(param) => {
-                // swap back
-                writeln!(w, "core::mem::swap({0}, &mut params.{0});", param.name)?;
-            }
-            _ => {}
-        }
-    }
+    // return returntype and out params
 
-    match &method.return_type {
-        Some(param) => {
-            writeln!(w, "params.{}", param.name)?;
+    if return_tuple.is_empty() {
+        write!(w, "()")?;
+    } else if return_tuple.len() == 1 {
+        writeln!(w, "params.{}", return_tuple[0].name)?;
+    } else {
+        write!(w, "(")?;
+        for param in &return_tuple {
+            writeln!(w, "params.{},", param.name)?;
         }
-        None => {}
+        write!(w, ")")?;
     }
 
     writeln!(w, "}}")?;