Little cleanup work

main.lua

@@ -2,8 +2,6 @@ print("Hello from a lua script!")
 
 function init()
    print("Hello from \"init\"")
-   couch.debug("init")
-   couch.say_hello("dane", "Hi!")
 end
 
 function update(delta)

src/device.rs

@@ -29,5 +29,4 @@ impl DeviceManager {
     fn update(&mut self, key: Key, state: ElementState) {
 	self.key_map.insert(key, state);
     }	
-	
 }

src/gameobject.rs

@@ -18,11 +18,11 @@ pub trait Childbearing<T> { // TODO remove this
 }
 
 impl Node {
-    pub fn find_node(&mut self, name: &str) -> Option<NodeRef> {
+    pub fn find_node(&self, name: &str) -> Option<NodeRef> {
 	self.children
 	    .iter()
 	    .find(|node| node.borrow().name == name)
-	    .map(|node| Rc::clone(node))
+	    .map(Rc::clone)
     }
 }
 
@@ -36,8 +36,6 @@ macro_rules! impl_childbearing {
     }
 }
 
-
-
 impl Node {
     pub fn new(name: String, gameobject: GameObject) -> Self {
 	Node {

src/main.rs

@@ -85,7 +85,7 @@ fn main() {
 		};
 		target.clear_color_and_depth((0.0, 0.0, 0.0, 1.0), 1.0);
 
-		let mut root = root.borrow_mut();
+		let root = root.borrow();
 
 		let cube = root.find_node("cube").unwrap();
 		let mut cube = cube.borrow_mut();

src/scripting.rs

@@ -1,123 +1,7 @@
-use crate::gameobject::{ Node, Transform };
-
-extern crate mlua;
-use mlua::Lua as LuaContext;
-use mlua::Error::RuntimeError as LuaError;
-use mlua::chunk;
-
-use std::rc::Rc;
-use std::cell::RefCell;
+mod lua;
+pub use lua::Lua;
 
 pub trait ScriptLang {
     fn init(&mut self);
     fn update(&mut self, delta: f32);
 }
-
-pub struct Lua {
-    ctx: LuaContext,
-}
-
-impl mlua::UserData for Node {
-    fn add_methods<'lua, M: mlua::UserDataMethods<'lua, Self>>(methods: &mut M) {
-	methods.add_method_mut("find_node", |_, this, name: String| {
-	    let child = this.find_node(&name);
-	    match child {
-		Some(child) => Ok(child),
-		None => Err(mlua::Error::RuntimeError("Could not find child".to_string())),
-	    }
-	});
-	methods.add_method("get_transform", |_, this, _: ()| {
-	    match this.gameobject.get_transform() {
-		Ok(transform) => Ok(transform),
-		Err(msg) => Err(LuaError(msg)),
-	    }
-	});
-	methods.add_method_mut("set_transform", |_, this, transform: Transform| {
-	    match this.gameobject.set_transform(transform) {
-		Ok(()) => Ok(()),
-		Err(msg) => Err(LuaError(msg)),
-	    }
-	});
-    }
-}
-
-impl<'lua> mlua::ToLua<'lua> for Transform {
-    fn to_lua(self, ctx: &'lua LuaContext) -> mlua::Result<mlua::Value<'lua>> {
-	let table = ctx.create_table().unwrap();
-	table.set("position", <[f32; 3]>::from(self.position))?;
-	table.set("rotation", <[f32; 3]>::from(self.rotation))?;
-	table.set("scale", <[f32; 3]>::from(self.scale))?;
-	mlua::Result::Ok(mlua::Value::Table(table))
-    }
-}
-
-impl<'lua> mlua::FromLua<'lua> for Transform {
-    fn from_lua(lua_value: mlua::Value<'lua>, _: &'lua LuaContext) -> mlua::Result<Self> {
-	match lua_value {
-	    mlua::Value::Table(table) => {
-		let position: [f32; 3] = table.get("position")?;
-		let rotation: [f32; 3] = table.get("rotation")?;
-		let scale: [f32; 3] = table.get("scale")?;
-		Ok(Transform {
-		    position: glm::Vec3::from(position),
-		    rotation: glm::Vec3::from(rotation),
-		    scale: glm::Vec3::from(scale),
-		})
-	    }
-	    _ => Err(LuaError("Could not convert to Transform".to_string())),
-	}
-    }
-}
-
-impl Lua {
-    pub fn new(root: Rc<RefCell<Node>>) -> Self {
-	// Create a lua context, load std libraries
-	let ctx = LuaContext::new();
-	// Create the ``couch'' api
-	let couch = ctx.create_table().unwrap();
-	couch.set("root", ctx.create_userdata(root).unwrap()).unwrap();
-	couch.set("debug", ctx.create_function(debug).unwrap()).unwrap();
-	couch.set("say_hello", ctx.create_function(say_hello).unwrap()).unwrap();
-	// Hook in to globals
-	ctx.globals().set("couch", couch).unwrap();
-	let path = std::path::Path::new("main.lua");
-	let buf = std::fs::read(&path).expect("Could not find main.lua");
-	ctx.load(&buf).exec().unwrap();
-
-	Lua {
-	    ctx,
-	}
-    }
-}
-
-impl ScriptLang for Lua {
-    fn init(&mut self) {
-	self.ctx.load(&"init()").exec().ok();
-    }
-
-    fn update(&mut self, delta: f32) {
-	self.ctx.load(chunk! {
-	    update($delta)
-	}).exec().ok();
-    }
-}
-
-macro_rules! luafuncs {
-    ($($name:ident($($arg:ident: $type: ty),*) $body:block),*) => {
-	$(
-	    fn $name(_: &LuaContext, ($($arg),*,): ($($type),*,)) -> Result<(), mlua::Error> $body
-	)*
-    };
-}
-
-
-luafuncs!{
-    debug(msg: String) {
-	println!("Couch Debug Message: {}", msg);
-	Ok(())
-    },
-    say_hello(name: String, msg: String) {
-	println!("Couch says {} to {}", msg, name);
-	Ok(())
-    }
-}

src/scripting/lua.rs

@@ -0,0 +1,98 @@
+use super::*;
+
+use crate::gameobject::{ Node, Transform };
+
+extern crate mlua;
+use mlua::Lua as LuaContext;
+use mlua::Error::RuntimeError as LuaError;
+use mlua::chunk;
+
+use std::rc::Rc;
+use std::cell::RefCell;
+
+pub struct Lua {
+    ctx: LuaContext,
+}
+
+impl mlua::UserData for Node {
+    fn add_methods<'lua, M: mlua::UserDataMethods<'lua, Self>>(methods: &mut M) {
+	methods.add_method_mut("find_node", |_, this, name: String| {
+	    let child = this.find_node(&name);
+	    match child {
+		Some(child) => Ok(child),
+		None => Err(mlua::Error::RuntimeError("Could not find child".to_string())),
+	    }
+	});
+	methods.add_method("get_transform", |_, this, _: ()| {
+	    match this.gameobject.get_transform() {
+		Ok(transform) => Ok(transform),
+		Err(msg) => Err(LuaError(msg)),
+	    }
+	});
+	methods.add_method_mut("set_transform", |_, this, transform: Transform| {
+	    match this.gameobject.set_transform(transform) {
+		Ok(()) => Ok(()),
+		Err(msg) => Err(LuaError(msg)),
+	    }
+	});
+    }
+}
+
+impl<'lua> mlua::ToLua<'lua> for Transform {
+    fn to_lua(self, ctx: &'lua LuaContext) -> mlua::Result<mlua::Value<'lua>> {
+	let table = ctx.create_table().unwrap();
+	table.set("position", <[f32; 3]>::from(self.position))?;
+	table.set("rotation", <[f32; 3]>::from(self.rotation))?;
+	table.set("scale", <[f32; 3]>::from(self.scale))?;
+	mlua::Result::Ok(mlua::Value::Table(table))
+    }
+}
+
+impl<'lua> mlua::FromLua<'lua> for Transform {
+    fn from_lua(lua_value: mlua::Value<'lua>, _: &'lua LuaContext) -> mlua::Result<Self> {
+	match lua_value {
+	    mlua::Value::Table(table) => {
+		let position: [f32; 3] = table.get("position")?;
+		let rotation: [f32; 3] = table.get("rotation")?;
+		let scale: [f32; 3] = table.get("scale")?;
+		Ok(Transform {
+		    position: glm::Vec3::from(position),
+		    rotation: glm::Vec3::from(rotation),
+		    scale: glm::Vec3::from(scale),
+		})
+	    }
+	    _ => Err(LuaError("Could not convert to Transform".to_string())),
+	}
+    }
+}
+
+impl Lua {
+    pub fn new(root: Rc<RefCell<Node>>) -> Self {
+	// Create a lua context, load std libraries
+	let ctx = LuaContext::new();
+	// Create the ``couch'' api
+	let couch = ctx.create_table().unwrap();
+	couch.set("root", ctx.create_userdata(root).unwrap()).unwrap();
+	// Hook in to globals
+	ctx.globals().set("couch", couch).unwrap();
+	let path = std::path::Path::new("main.lua");
+	let buf = std::fs::read(&path).expect("Could not find main.lua");
+	ctx.load(&buf).exec().unwrap();
+
+	Lua {
+	    ctx,
+	}
+    }
+}
+
+impl ScriptLang for Lua {
+    fn init(&mut self) {
+	self.ctx.load(&"init()").exec().ok();
+    }
+
+    fn update(&mut self, delta: f32) {
+	self.ctx.load(chunk! {
+	    update($delta)
+	}).exec().ok();
+    }
+}