scripting: switch to elua, create LuaTableProxy for proxying rust types into and from lua tables

examples/testbed/scripts/test.lua

@@ -12,18 +12,51 @@ function on_pre_update()
     print("Lua's pre-update function was called")
 end ]]
 
+---
+---Recursively dumps a table as a string.
+---
+---@param obj table
+---@return string
+---@nodiscard
+function dump_table(obj)
+    if type(obj) == 'table' then
+        local s = '{ '
+        for k,v in pairs(obj) do
+            if type(k) ~= 'number' then k = '"'..k..'"' end
+            s = s .. '['..k..'] = ' .. dump_table(v) .. ','
+        end
+        return s .. '} '
+    else
+        return tostring(obj)
+    end
+end
+
 function on_update()
     --print("Lua's update function was called")
 
-    local dt = world:resource(DeltaTime)
-    --print("DeltaTime was " .. tostring(dt) .. "s")
+    --local v = Vec3:new(50, 10, 20)
+    --print("Vec3 = " .. tostring(v))
 
-    world:view(function (t)
-        --print("Found entity at a really cool place: " .. tostring(t))
-        t.translation = t.translation + (Vec3.new(0, 0.5, 0) * dt:get())
+    world:view(
+        ---@param t Transform
+        function (t)
+            print("Found entity at a really cool place: " .. tostring(t))
+            t.translation:move_by(0, 0.001, 0)
 
             return t
-    end, Transform)
+        end,
+        Transform
+    )
+
+--    local dt = world:resource(DeltaTime)
+--    --print("DeltaTime was " .. tostring(dt) .. "s")
+--
+--    world:view(function (t)
+--        --print("Found entity at a really cool place: " .. tostring(t))
+--        t.translation = t.translation + (Vec3.new(0, 0.5, 0) * dt:get())
+--
+--        return t
+--    end, Transform)
 end
 
 --[[ function on_post_update()

examples/testbed/src/main.rs

@@ -84,16 +84,16 @@ async fn main() {
 
         let mut resman = world.get_resource_mut::<ResourceManager>();
         //let diffuse_texture = resman.request::<Texture>("assets/happy-tree.png").unwrap();
-        let antique_camera_model = resman.request::<Model>("assets/AntiqueCamera.glb").unwrap();
+        //let antique_camera_model = resman.request::<Model>("assets/AntiqueCamera.glb").unwrap();
         //let cube_model = resman.request::<Model>("assets/cube-texture-bin.glb").unwrap();
         let cube_model = resman.request::<Model>("assets/texture-sep/texture-sep.gltf").unwrap();
         let crate_model = resman.request::<Model>("assets/crate/crate.gltf").unwrap();
         drop(resman);
 
-        world.spawn((
+        /* world.spawn((
             ModelComponent(antique_camera_model),
             Transform::from_xyz(0.0, -5.0, -10.0),
-        ));
+        )); */
 
         {
             let cube_tran = Transform::from_xyz(-3.5, 0.0, -8.0);

lyra-game/src/game.rs

@@ -342,7 +342,7 @@ impl Game {
             .with(fmt::layer().with_writer(stdout_layer))
             .with(filter::Targets::new()
                 // done by prefix, so it includes all lyra subpackages
-                .with_target("lyra", Level::DEBUG)
+                .with_target("lyra", Level::TRACE)
                 .with_target("wgpu", Level::WARN)
                 .with_default(Level::INFO))
             .init();

lyra-scripting/elua

@@ -1 +1 @@
-Subproject commit 5694d395abbbce340eda195c99104db3e9c9435a
+Subproject commit 35bd889b4829446f972292440174e7c0e4fa40a2

lyra-scripting/scripts/lua/math/quat.lua

@@ -1,3 +1,8 @@
+---@class Quat
+---@field x number
+---@field y number
+---@field z number
+---@field w number
 Quat = { x = 0.0, y = 0.0, z = 0.0, w = 0.0 }
 Quat.__index = Quat
 Quat.__name = "Quat"
@@ -22,7 +27,7 @@ end
 
 Quat.IDENTITY = Quat:new(0, 0, 0, 1)
 
-function Quat:copy()
+function Quat:clone()
     return Quat:new(self.x, self.y, self.z, self.w)
 end
 

lyra-scripting/scripts/lua/math/transform.lua

@@ -1,6 +1,7 @@
---require("math.quat")
---require("math.vec3")
-
+---@class Transform
+---@field translation Vec3
+---@field rotation Quat
+---@field Scale Vec3
 Transform = { translation = Vec3.ZERO, rotation = Quat.IDENTITY, scale = Vec3.ONE }
 Transform.__index = Transform
 Transform.__name = "Transform"
@@ -16,14 +17,14 @@ function Transform:new(translation, rotation, scale)
     return t
 end
 
-function Transform:copy()
-    return Transform:new(self.translation:copy(), self.rotation:copy(), self.scale:copy())
+function Transform:clone()
+    return Transform:new(self.translation:clone(), self.rotation:clone(), self.scale:clone())
 end
 
 --- Creates a new Transform with the translation at the vec3
 --- @param pos Vec3
 function Transform:from_vec3(pos)
-    local t = Transform:copy() -- copy of default transform
+    local t = Transform:clone() -- copy of default transform
     t.translation = pos
     return t
 end
@@ -81,7 +82,7 @@ end
 --- @param alpha number
 --- @return Transform
 function Transform:lerp(rhs, alpha)
-    local res = self:copy()
+    local res = self:clone()
     res.translation = self.translation:lerp(rhs.translation, alpha)
     res.rotation = self.rotation:lerp(rhs.rotation, alpha)
     res.scale = self.scale:lerp(rhs.scale, alpha)

lyra-scripting/scripts/lua/math/vec3.lua

@@ -1,3 +1,7 @@
+---@class Vec3
+---@field x number
+---@field y number
+---@field z number
 Vec3 = { x = 0.0, y = 0.0, z = 0.0 }
 Vec3.__index = Vec3
 Vec3.__name = "Vec3"
@@ -18,7 +22,9 @@ function Vec3:new(x, y, z)
     return v
 end
 
-function Vec3:copy()
+---Creates a copy of self
+---@return Vec3
+function Vec3:clone()
     return Vec3:new(self.x, self.y, self.z)
 end
 
@@ -49,9 +55,10 @@ Vec3.ZERO = Vec3:new(0, 0, 0)
 Vec3.ONE = Vec3:new(1, 1, 1)
 
 --- Computes the absolute value of `self`.
----@return Vec3
 function Vec3:abs()
-    return Vec3:new(math.abs(self.x), math.abs(self.y), math.abs(self.z))
+    self.x = math.abs(self.x)
+    self.y = math.abs(self.y)
+    self.z = math.abs(self.z)
 end
 
 --- Computes the length of `self`.
@@ -60,6 +67,16 @@ function Vec3:length()
     return math.sqrt(self:dot(self))
 end
 
+---Moves `self` by the provided coordinates
+---@param x number
+---@param y number
+---@param z number
+function Vec3:move_by(x, y, z)
+    self.x = self.x + x
+    self.y = self.y + y
+    self.z = self.z + z
+end
+
 --- Computes the dot product of `self` and `rhs`.
 ---@param rhs Vec3
 ---@return number
@@ -80,11 +97,12 @@ function Vec3:min(rhs)
     return Vec3:new(x, y, z)
 end
 
---- Returns `self` normalized to a length 1.
----@return unknown
+--- Modifies `self` to be normalized to a length 1.
 function Vec3:normalize()
     local len_recip = 1.0 / self:length()
-    return self * len_recip
+    self.x = self.x * len_recip
+    self.y = self.y * len_recip
+    self.z = self.z * len_recip
 end
 
 --- Calculates the linear iterpolation between `self` and `rhs` based on the `alpha`.
@@ -97,40 +115,48 @@ function Vec3:lerp(rhs, alpha)
     -- ensure alpha is [0, 1]
     local alpha = math.max(0, math.min(1, alpha))
 
-    local res = self:copy()
+    local res = self:clone()
     res = res + ((rhs - res) * alpha)
     return res
 end
 
 function Vec3:__add(rhs)
+    if type(rhs) == "Vec3" then
         return Vec3:new(self.x + rhs.x, self.y + rhs.y, self.z + rhs.z)
+    else
+        return Vec3:new(self.x + rhs, self.y + rhs, self.z + rhs)
+    end
 end
 
 function Vec3:__sub(rhs)
+    if type(rhs) == "Vec3" then
         return Vec3:new(self.x - rhs.x, self.y - rhs.y, self.z - rhs.z)
+    else
+        return Vec3:new(self.x - rhs, self.y - rhs, self.z - rhs)
+    end
 end
 
 function Vec3:__mul(rhs)
-    if type(rhs) == "number" then
-        return Vec3:new(self.x * rhs, self.y * rhs, self.z * rhs)
-    else
+    if type(rhs) == "Vec3" then
         return Vec3:new(self.x * rhs.x, self.y * rhs.y, self.z * rhs.z)
+    else
+        return Vec3:new(self.x * rhs, self.y * rhs, self.z * rhs)
     end
 end
 
 function Vec3:__div(rhs)
-    if type(rhs) == "number" then
-        return Vec3:new(self.x / rhs, self.y / rhs, self.z / rhs)
-    else
+    if type(rhs) == "Vec3" then
         return Vec3:new(self.x / rhs.x, self.y / rhs.y, self.z / rhs.z)
+    else
+        return Vec3:new(self.x / rhs, self.y / rhs, self.z / rhs)
     end
 end
 
 function Vec3:__idiv(rhs)
-    if type(rhs) == "number" then
-        return Vec3:new(self.x // rhs, self.y // rhs, self.z // rhs)
-    else
+    if type(rhs) == "Vec3" then
         return Vec3:new(self.x // rhs.x, self.y // rhs.y, self.z // rhs.z)
+    else
+        return Vec3:new(self.x // rhs, self.y // rhs, self.z // rhs)
     end
 end
 

lyra-scripting/src/host.rs

@@ -8,15 +8,15 @@ use crate::ScriptWorldPtr;
 pub enum ScriptError {
     #[error("{0}")]
     #[cfg(feature = "lua")]
-    MluaError(mlua::Error),
+    MluaError(elua::Error),
 
     #[error("{0}")]
     Other(anyhow::Error),
 }
 
 #[cfg(feature = "lua")]
-impl From<mlua::Error> for ScriptError {
-    fn from(value: mlua::Error) -> Self {
+impl From<elua::Error> for ScriptError {
+    fn from(value: elua::Error) -> Self {
         ScriptError::MluaError(value)
     }
 }

lyra-scripting/src/lua/dynamic_iter.rs

@@ -134,9 +134,9 @@ impl Iterator for DynamicViewIter {
 
 #[cfg(feature = "lua")]
 pub struct ReflectedItem<'a> {
-    pub proxy: &'a ReflectLuaProxy,
+    //pub proxy: &'a ReflectLuaProxy,
     pub comp_ptr: NonNull<u8>,
-    pub comp_ud: mlua::AnyUserData<'a>,
+    pub comp_val: elua::Value<'a>,
 }
 
 #[cfg(feature = "lua")]
@@ -153,7 +153,11 @@ pub struct ReflectedIterator {
 
 impl ReflectedIterator {
     #[cfg(feature = "lua")]
-    pub fn next_lua<'a>(&mut self, lua: &'a mlua::Lua) -> Option<ReflectedRow<'a>> {
+    pub fn next_lua<'a>(&mut self, lua: &'a elua::State) -> Option<ReflectedRow<'a>> {
+        use elua::AsLua;
+
+        use super::ReflectedLuaTableProxy;
+
 
         let n = self.dyn_view.next();
         
@@ -172,17 +176,20 @@ impl ReflectedIterator {
                 
                 let reg_type = reflected_components.get_type(id)
                     .expect("Requested type was not found in TypeRegistry");
-                let proxy = reg_type.get_data::<ReflectLuaProxy>()
-                    .expect("Type does not have ReflectLuaProxy as a TypeData");
-                
-                let userdata = (proxy.fn_as_uservalue)(lua, d.ptr).unwrap();
+                let value = if let Some(proxy) = reg_type.get_data::<ReflectLuaProxy>() {
+                    (proxy.fn_as_uservalue)(lua, d.ptr).unwrap()
+                        .as_lua(lua).unwrap()
+                } else if let Some(proxy) = reg_type.get_data::<ReflectedLuaTableProxy>() {
+                    (proxy.fn_as_table)(lua, d.ptr.cast()).unwrap()
+                        .as_lua(lua).unwrap()
+                } else {
+                    panic!("Type does not have ReflectLuaProxy or ReflectedLuaTableProxy as a TypeData");
+                };
 
                 dynamic_row.push(ReflectedItem {
-                    proxy,
                     comp_ptr: d.ptr,
-                    comp_ud: userdata
+                    comp_val: value
                 });
-                //dynamic_row.push(( (proxy, d.ptr), userdata));
             }
 
             let row = ReflectedRow {

lyra-scripting/src/lua/mod.rs

@@ -2,6 +2,7 @@ pub mod dynamic_iter;
 pub use dynamic_iter::*;
 
 pub mod world;
+use elua::FromLua;
 pub use world::*;
 
 pub mod script;
@@ -19,19 +20,14 @@ pub use proxy::*;
 pub mod system;
 pub use system::*;
 
-#[cfg(test)]
-mod test;
-
 use std::{any::TypeId, sync::Mutex};
 
 use lyra_ecs::{
-    DynamicBundle, World,
+    Component, ComponentInfo, DynamicBundle, World
 };
 use lyra_reflect::{FromType, Reflect, TypeRegistry};
 
-use mlua::{AnyUserDataExt, Lua};
-
-pub type LuaContext = Mutex<mlua::Lua>;
+pub type LuaContext = Mutex<elua::State>;
 
 pub const FN_NAME_INTERNAL_REFLECT_TYPE: &str = "__lyra_internal_reflect_type";
 pub const FN_NAME_INTERNAL_REFLECT: &str = "__lyra_internal_reflect";
@@ -40,21 +36,28 @@ use crate::{ScriptBorrow, ScriptDynamicBundle};
 
 /// A trait used for registering a Lua type with the world.
 pub trait RegisterLuaType {
-    /// Register a type to lua that **is not wrapped**.
+    /// Register a type to Lua that **is not wrapped**.
     fn register_lua_type<'a, T>(&mut self)
     where
-        T: Reflect + LuaProxy + Clone + mlua::FromLua<'a> + mlua::UserData;
+        T: Reflect + LuaProxy + Clone + elua::FromLua<'a> + elua::Userdata;
 
-    /// Registers a wrapped lua type.
+    /// Registers a type to Lua that is wrapped another type.
+    /// This would be used for something like `UserdataRef<T>`.
     fn register_lua_wrapper<'a, W>(&mut self)
     where
-        W: Reflect + LuaProxy + LuaWrapper + Clone + mlua::FromLua<'a> + mlua::UserData;
+        W: Reflect + LuaProxy + LuaWrapper + Clone + elua::FromLua<'a> + elua::Userdata;
+
+    /// Registers a type to Lua that implements [`elua::TableProxy`]
+    fn register_lua_table_proxy<'a, T, W>(&mut self)
+    where
+        T: elua::TableProxy + 'static,
+        W: Component;
 }
 
 impl RegisterLuaType for World {
     fn register_lua_type<'a, T>(&mut self)
     where
-        T: Reflect + LuaProxy + Clone + mlua::FromLua<'a> + mlua::UserData
+        T: Reflect + LuaProxy + Clone + elua::FromLua<'a> + elua::Userdata
     {
         let mut registry = self.get_resource_mut::<TypeRegistry>();
 
@@ -67,44 +70,64 @@ impl RegisterLuaType for World {
 
     fn register_lua_wrapper<'a, W>(&mut self)
     where
-        W: Reflect + LuaProxy + LuaWrapper + Clone + mlua::FromLua<'a> + mlua::UserData
+        W: Reflect + LuaProxy + LuaWrapper + Clone + elua::FromLua<'a> + elua::Userdata
     {
         let mut registry = self.get_resource_mut::<TypeRegistry>();
 
         let reg_type = registry.get_type_or_default(W::wrapped_type_id());
         reg_type.add_data(<ReflectLuaProxy as FromType<W>>::from_type());
     }
+
+    fn register_lua_table_proxy<'a, T, C>(&mut self)
+    where
+        T: elua::TableProxy + 'static,
+        C: Component
+    {
+        let mut registry = self.get_resource_mut::<TypeRegistry>();
+
+        let type_id = TypeId::of::<T>();
+        let reg_type = registry.get_type_or_default(TypeId::of::<C>());
+        reg_type.add_data(<ReflectedLuaTableProxy as FromType<T>>::from_type());
+        drop(registry);
+
+        let mut lookup = self.get_resource_or_else::<LuaTableProxyLookup, _>(LuaTableProxyLookup::default);
+        lookup.typeid_from_name.insert(T::table_name(), TypeId::of::<C>());
+        
+        let mut info = ComponentInfo::new::<C>();
+        lookup.comp_info_from_name.insert(T::table_name(), info);
+    }
 }
 
-impl<'lua> mlua::FromLua<'lua> for ScriptBorrow {
-    fn from_lua(value: mlua::Value<'lua>, _lua: &'lua Lua) -> mlua::Result<Self> {
+impl<'lua> elua::FromLua<'lua> for ScriptBorrow {
+    fn from_lua(_: &'lua elua::State, value: elua::Value<'lua>) -> elua::Result<Self> {
         match value {
-            mlua::Value::UserData(ud) => Ok(ud.borrow::<Self>()?.clone()),
+            elua::Value::Userdata(ud) => Ok(ud.as_ref::<Self>()?.clone()),
             _ => unreachable!(),
         }
     }
 }
 
-impl mlua::UserData for ScriptBorrow {}
-
-pub fn reflect_user_data(ud: &mlua::AnyUserData) -> ScriptBorrow {
-    ud.call_method::<_, ScriptBorrow>(FN_NAME_INTERNAL_REFLECT, ())
-        .expect("Type does not implement '__internal_reflect' properly")
-}
-
-impl mlua::UserData for ScriptDynamicBundle {
-    fn add_methods<'lua, M: mlua::prelude::LuaUserDataMethods<'lua, Self>>(methods: &mut M) {
-        methods.add_function("new", |_, ()| Ok(ScriptDynamicBundle(DynamicBundle::new())));
-
-        methods.add_method_mut("push", |_, this, (comp,): (mlua::AnyUserData,)| {
-            let script_brw = comp.call_method::<_, ScriptBorrow>(FN_NAME_INTERNAL_REFLECT, ())?;
-            let reflect = script_brw.reflect_branch.as_component_unchecked();
-
-            let refl_data = script_brw.data.unwrap();
-            let refl_data = refl_data.as_ref();
-            reflect.bundle_insert(&mut this.0, refl_data);
-
-            Ok(())
-        });
+impl<'lua> elua::FromLuaVec<'lua> for ScriptBorrow {
+    fn from_lua_value_vec(state: &'lua elua::State, mut values: elua::ValueVec<'lua>) -> elua::Result<Self> {
+        if let Some(v) = values.pop_front() {
+            ScriptBorrow::from_lua(state, v)
+        } else {
+            Err(elua::Error::Nil)
+        }
     }
 }
+
+impl elua::Userdata for ScriptBorrow {
+    fn name() -> String {
+        "ScriptBorrow".to_string()
+    }
+
+    fn build<'a>(state: &elua::State, builder: &mut elua::UserdataBuilder<'a, Self>) -> elua::Result<()> {
+        Ok(())
+    }
+}
+
+pub fn reflect_user_data(ud: &elua::AnyUserdata) -> ScriptBorrow {
+    ud.execute_method::<_, ScriptBorrow>(FN_NAME_INTERNAL_REFLECT, ())
+        .expect("Type does not implement '__internal_reflect' properly")
+}

lyra-scripting/src/lua/providers/ecs.rs

@@ -13,7 +13,7 @@ impl ScriptApiProvider for LyraEcsApiProvider {
     fn expose_api(&mut self, data: &ScriptData, ctx: &mut Self::ScriptContext) -> Result<(), crate::ScriptError> {
         let ctx = ctx.lock().unwrap();
 
-        let globals = ctx.globals();
+        let globals = ctx.globals()?;
         globals.set("World", ctx.create_proxy::<ScriptWorldPtr>()?)?;
         globals.set("DynamicBundle", ctx.create_proxy::<ScriptDynamicBundle>()?)?;
 

lyra-scripting/src/lua/providers/math.rs

@@ -1,8 +1,8 @@
+use elua::{TableProxy, Userdata};
 use lyra_ecs::World;
-use lyra_game::math;
+use lyra_game::math::{self, Quat, Transform, Vec3};
 use crate::ScriptData;
 use crate::lua::RegisterLuaType;
-use crate::lua::wrappers::{LuaVec3, LuaTransform};
 
 use crate::{ScriptApiProvider, lua::LuaContext};
 
@@ -13,26 +13,31 @@ impl ScriptApiProvider for LyraMathApiProvider {
     type ScriptContext = LuaContext;
 
     fn prepare_world(&mut self, world: &mut World) { 
-        world.register_lua_wrapper::<LuaVec3>();
-        world.register_lua_wrapper::<LuaTransform>();
+        // TODO
+        /* world.register_lua_wrapper::<LuaVec3>();
+        world.register_lua_wrapper::<LuaTransform>(); */
+        world.register_lua_table_proxy::<LuaVec3, Vec3>();
+        world.register_lua_table_proxy::<LuaQuat, Quat>();
+        world.register_lua_table_proxy::<LuaTransform, Transform>();
     }
 
-    fn expose_api(&mut self, data: &ScriptData, ctx: &mut Self::ScriptContext) -> Result<(), crate::ScriptError> {
+    fn expose_api(&mut self, _data: &ScriptData, ctx: &mut Self::ScriptContext) -> Result<(), crate::ScriptError> {
         let ctx = ctx.lock().unwrap();
 
-        /* let bytes = include_bytes!("../../../scripts/lua/math/vec3.lua");
-        ctx.load(bytes.to_vec()).exec()?;
+        let bytes = include_bytes!("../../../scripts/lua/math/vec3.lua");
+        ctx.load("lyra/math/vec2.lua", bytes.as_slice())?.execute(())?;
 
         let bytes = include_bytes!("../../../scripts/lua/math/quat.lua");
-        ctx.load(bytes.to_vec()).exec()?;
+        ctx.load("lyra/math/quat.lua", bytes.as_slice())?.execute(())?;
         
         let bytes = include_bytes!("../../../scripts/lua/math/transform.lua");
-        ctx.load(bytes.to_vec()).exec()?; */
+        ctx.load("lyra/math/transform.lua", bytes.as_slice())?.execute(())?;
 
-        let globals = ctx.globals();
-        globals.set("Vec3", ctx.create_proxy::<LuaVec3>()?)?;
-        globals.set("Transform", ctx.create_proxy::<LuaTransform>()?)?;
-        //globals.set("Vec3", LuaVec3(math::Vec3::ZERO).into_lua(&ctx)?)?;
+        // TODO
+        //let globals = ctx.globals()?;
+        //globals.set("Vec3", elua::Proxy::<LuaVec3>::from(LuaVec3(Vec3::ZERO)))?;
+        //globals.set("Vec3", ctx.create_proxy::<LuaVec3>()?)?;
+        //globals.set("Transform", ctx.create_proxy::<LuaTransform>()?)?;
 
         Ok(())
     }
@@ -46,6 +51,94 @@ impl ScriptApiProvider for LyraMathApiProvider {
     }
 }
 
+#[derive(Clone, Copy)]
+struct LuaVec3(Vec3);
+
+impl TableProxy for LuaVec3 {
+    fn from_table<'a>(_: &'a elua::State, table: elua::Table<'a>) -> elua::Result<Self> {
+        let x: f32 = table.get("x")?;
+        let y: f32 = table.get("y")?;
+        let z: f32 = table.get("z")?;
+
+        Ok(LuaVec3(Vec3 {
+            x,
+            y,
+            z,
+        }))
+    }
+
+    fn as_table<'a>(&self, state: &'a elua::State) -> elua::Result<elua::Table<'a>> {
+        let globals = state.globals()?;
+        let vec3: elua::Table = globals.get("Vec3")?;
+        let new_fn: elua::Function = vec3.get("new")?;
+        new_fn.exec((vec3, self.0.x, self.0.y, self.0.z))
+    }
+
+    fn table_name() -> String {
+        "Vec3".to_string()
+    }
+}
+
+#[derive(Clone, Copy)]
+struct LuaQuat(Quat);
+
+impl TableProxy for LuaQuat {
+    fn from_table<'a>(_: &'a elua::State, table: elua::Table<'a>) -> elua::Result<Self> {
+        let x: f32 = table.get("x")?;
+        let y: f32 = table.get("y")?;
+        let z: f32 = table.get("z")?;
+        let w: f32 = table.get("w")?;
+
+        Ok(LuaQuat(Quat::from_xyzw(x, y, z, w)))
+    }
+
+    fn as_table<'a>(&self, state: &'a elua::State) -> elua::Result<elua::Table<'a>> {
+        let globals = state.globals()?;
+        let quat: elua::Table = globals.get("Quat")?;
+        let new_fn: elua::Function = quat.get("new")?;
+        new_fn.exec((quat, self.0.x, self.0.y, self.0.z, self.0.w))
+    }
+
+    fn table_name() -> String {
+        "Quat".to_string()
+    }
+}
+
+#[derive(Clone, Copy)]
+struct LuaTransform(Transform);
+
+impl TableProxy for LuaTransform {
+    fn from_table<'a>(lua: &'a elua::State, table: elua::Table<'a>) -> elua::Result<Self> {
+        let translation: elua::Table = table.get("translation")?;
+        let rotation: elua::Table = table.get("rotation")?;
+        let scale: elua::Table = table.get("scale")?;
+
+        let translation = LuaVec3::from_table(lua, translation)?;
+        let rotation = LuaQuat::from_table(lua, rotation)?;
+        let scale = LuaVec3::from_table(lua, scale)?;
+
+        Ok(LuaTransform(Transform::new(translation.0, rotation.0, scale.0)))
+    }
+
+    fn as_table<'a>(&self, state: &'a elua::State) -> elua::Result<elua::Table<'a>> {
+        let globals = state.globals()?;
+        let transform: elua::Table = globals.get("Transform")?;
+        let new_fn: elua::Function = transform.get("new")?;
+        
+        let translation = LuaVec3(self.0.translation).as_table(state)?;
+        let rotation = LuaQuat(self.0.rotation).as_table(state)?;
+        let scale = LuaVec3(self.0.scale).as_table(state)?;
+        
+        new_fn.exec((transform, translation, rotation, scale))
+    }
+
+    fn table_name() -> String {
+        "Transform".to_string()
+    }
+
+    
+}
+
 /* #[derive(Clone, Copy, PartialEq, Debug, lyra_reflect::Reflect)]
 pub struct LuaVec3(#[reflect(skip)] math::Vec3);
 

lyra-scripting/src/lua/providers/util.rs

@@ -17,47 +17,46 @@ use crate::{ScriptApiProvider, ScriptData};
 pub struct UtilityApiProvider;
 
 impl ScriptApiProvider for UtilityApiProvider {
-    type ScriptContext = Mutex<mlua::Lua>;
+    type ScriptContext = Mutex<elua::State>;
 
     fn expose_api(&mut self, data: &ScriptData, ctx: &mut Self::ScriptContext) -> Result<(), crate::ScriptError> {
         let ctx = ctx.lock().unwrap();
 
-        fn printf(lua: &mlua::Lua, (mut text, formats): (String, mlua::Variadic<mlua::Value>)) -> mlua::Result<()> {
+        //fn printf(lua: &elua::State, (mut text, formats): (String, elua::Variadic<elua::Value>)) -> elua::Result<()> {
+        let printf = |lua: &elua::State, (mut text, formats): (String, elua::Variadic<elua::Value>)| {
             let mut formatted = String::new();
             let mut arg_num = 0;
 
             while let Some(start) = text.find("{}") {
                 let val_str = match formats.get(arg_num) {
                     Some(v) => match v {
-                        mlua::Value::Nil => "nil".to_string(),
-                        mlua::Value::Boolean(b) => b.to_string(),
-                        mlua::Value::LightUserData(_) => {
-                            return Err(mlua::Error::RuntimeError(format!("unable to get string representation of LightUserData")));
+                        elua::Value::Nil => "nil".to_string(),
+                        elua::Value::Boolean(b) => b.to_string(),
+                        elua::Value::Number(n) => n.to_string(),
+                        elua::Value::String(s) => s.clone(),
+                        elua::Value::Table(_) => {
+                            return Err(elua::Error::runtime("unable to get string representation of Table"));
                         },
-                        mlua::Value::Integer(i) => i.to_string(),
-                        mlua::Value::Number(n) => n.to_string(),
-                        mlua::Value::String(s) => s.to_str().unwrap().to_string(),
-                        mlua::Value::Table(_) => {
-                            return Err(mlua::Error::RuntimeError(format!("unable to get string representation of Table")));
+                        elua::Value::Function(_) => {
+                            return Err(elua::Error::runtime("unable to get string representation of Function"));
                         },
-                        mlua::Value::Function(_) => {
-                            return Err(mlua::Error::RuntimeError(format!("unable to get string representation of Function")));
+                        elua::Value::Thread(_) => {
+                            return Err(elua::Error::runtime("unable to get string representation of Thread"));
                         },
-                        mlua::Value::Thread(_) => {
-                            return Err(mlua::Error::RuntimeError(format!("unable to get string representation of Thread")));
-                        },
-                        mlua::Value::UserData(ud) => {
-                            let metatable = ud.get_metatable()?;
-                            if let Ok(tos) = metatable.get::<mlua::Function>(mlua::MetaMethod::ToString) {
-                                tos.call::<_, String>((ud.clone(),))?
+                        elua::Value::Userdata(ud) => {
+                            if let Ok(tos) = ud.get::<_, elua::Function>(elua::MetaMethod::ToString) {
+                                tos.exec::<_, String>(())?
                             } else {
-                                return Err(mlua::Error::RuntimeError(format!("UserData does not implement MetaMethod '__tostring'")));
+                                return Err(elua::Error::runtime("UserData does not implement MetaMethod '__tostring'"));
                             }
                         },
-                        mlua::Value::Error(e) => e.to_string(),
+                        elua::Value::None => "None".to_string(),
+                        elua::Value::Multi(v) => {
+                            return Err(elua::Error::runtime("unable to get string representation of ValueVec"));
+                        },
                     },
                     None => {
-                        let got_args = arg_num;
+                        let got_args = arg_num;// - 1;
 
                         // continue searching for {} to get the number of format spots for the error message.
                         while let Some(start) = text.find("{}") {
@@ -65,13 +64,15 @@ impl ScriptApiProvider for UtilityApiProvider {
                             arg_num += 1;
                         }
 
-                        return Err(mlua::Error::BadArgument {
-                            to: Some("printf".to_string()),
-                            pos: 2,
-                            name: Some("...".to_string()),
-                            cause: Arc::new(mlua::Error::RuntimeError(format!("not enough args \
+                        return Err(elua::Error::BadArgument {
+                            func: Some("printf".to_string()),
+                            arg_index: 2,
+                            arg_name: Some("fmt...".to_string()),
+                            error: Arc::new(elua::Error::Runtime(format!(
+                                "not enough args \
                                 given for the amount of format areas in the string. Expected {}, \
-                                got {}.", arg_num, got_args)))
+                                got {}.", arg_num, got_args
+                            )))
                         })
                     },
                 };
@@ -84,29 +85,31 @@ impl ScriptApiProvider for UtilityApiProvider {
             }
 
             if arg_num < formats.len() {
-                return Err(mlua::Error::BadArgument {
-                    to: Some("printf".to_string()),
-                    pos: 2,
-                    name: Some("...".to_string()),
-                    cause: Arc::new(mlua::Error::RuntimeError(format!("got more args \
-                        than format areas in the string. Expected {}, got {}.", formats.len(), arg_num)))
+                return Err(elua::Error::BadArgument {
+                    func: Some("printf".to_string()),
+                    arg_index: 2,
+                    arg_name: Some("fmt...".to_string()),
+                    error: Arc::new(elua::Error::Runtime(format!(
+                        "got more args \
+                        than format areas in the string. Expected {}, got {}.", formats.len(), arg_num
+                    )))
                 })
             }
             
             formatted = format!("{}{}", formatted, text);
 
-            lua.globals()
-                .get::<_, mlua::Function>("print")?
-                .call::<_, ()>(formatted)?;
+            lua.globals()?
+                .get::<_, elua::Function>("print")?
+                .exec::<_, ()>(formatted)?;
 
             Ok(())
-        }
+        };
         
-        let script_name_reg = ctx.create_registry_value(data.name.clone())?;
+        let script_name_reg = ctx.registry_insert(data.name.clone())?;
 
         let printf_func = ctx.create_function(printf)?;
         let print_func = ctx.create_function(move |lua, text: String| {
-            let name = lua.registry_value::<String>(&script_name_reg)?;
+            let name = lua.registry_get::<String>(script_name_reg)?;
             let _span = debug_span!("lua", script = &name).entered();
 
             debug!(target: "lyra_scripting::lua", "{}", text);
@@ -114,7 +117,7 @@ impl ScriptApiProvider for UtilityApiProvider {
             Ok(())
         })?;
 
-        let globals = ctx.globals();
+        let globals = ctx.globals()?;
         globals.set("printf", printf_func)?;
         globals.set("print", print_func)?;
         

lyra-scripting/src/lua/proxy.rs

@@ -1,46 +1,51 @@
-use std::{any::TypeId, ptr::NonNull};
+use std::{any::TypeId, collections::HashMap, ptr::NonNull};
 
+use elua::{FromLua, TableProxy};
+use lyra_ecs::{ComponentInfo, DynamicBundle};
 use lyra_reflect::{Reflect, FromType};
 
-use crate::ScriptDynamicBundle;
+use crate::{ScriptBorrow, ScriptDynamicBundle};
+
+use super::FN_NAME_INTERNAL_REFLECT;
 
 pub trait LuaWrapper {
     /// The type id of the wrapped type.
     fn wrapped_type_id() -> TypeId;
 }
 
+/// A trait that used to convert something into lua, or to set something to a value from lua.
 pub trait LuaProxy {
     fn as_lua_value<'lua>(
-        lua: &'lua mlua::Lua,
+        lua: &'lua elua::State,
         this: &dyn Reflect,
-    ) -> mlua::Result<mlua::AnyUserData<'lua>>;
+    ) -> elua::Result<elua::AnyUserdata<'lua>>;
 
     fn apply(
-        lua: &mlua::Lua,
+        lua: &elua::State,
         this: &mut dyn Reflect,
-        apply: &mlua::AnyUserData,
-    ) -> mlua::Result<()>;
+        apply: &elua::AnyUserdata,
+    ) -> elua::Result<()>;
 }
 
 impl<'a, T> LuaProxy for T
 where
-    T: Reflect + Clone + mlua::FromLua<'a> + mlua::UserData
+    T: Reflect + Clone + elua::FromLua<'a> + elua::Userdata
 {
     fn as_lua_value<'lua>(
-        lua: &'lua mlua::Lua,
+        lua: &'lua elua::State,
         this: &dyn Reflect,
-    ) -> mlua::Result<mlua::AnyUserData<'lua>> {
+    ) -> elua::Result<elua::AnyUserdata<'lua>> {
         let this = this.as_any().downcast_ref::<T>().unwrap();
         lua.create_userdata(this.clone())
     }
 
     fn apply(
-        _lua: &mlua::Lua,
+        _: &elua::State,
         this: &mut dyn Reflect,
-        apply: &mlua::AnyUserData,
-    ) -> mlua::Result<()> {
+        apply: &elua::AnyUserdata,
+    ) -> elua::Result<()> {
         let this = this.as_any_mut().downcast_mut::<T>().unwrap();
-        let apply = apply.borrow::<T>()?;
+        let apply = apply.as_ref::<T>()?;
 
         *this = apply.clone();
 
@@ -48,24 +53,66 @@ where
     }
 }
 
+/// A struct that is used for retrieving rust type ids of types that implement `TableProxy`.
+#[derive(Default)]
+pub struct LuaTableProxyLookup {
+    pub(crate) typeid_from_name: HashMap<String, TypeId>,
+    pub(crate) comp_info_from_name: HashMap<String, ComponentInfo>,
+}
+
+/// A struct used for converting types that implement `TableProxy` to and from Lua.
+#[derive(Clone)]
+pub struct ReflectedLuaTableProxy {
+    pub table_name: String,
+    pub fn_as_table:
+        for<'a> fn(lua: &'a elua::State, this_ptr: NonNull<()>) -> elua::Result<elua::Table<'a>>,
+    pub fn_apply: for<'a> fn(
+        lua: &'a elua::State,
+        this_ptr: NonNull<()>,
+        table: &'a elua::Table<'a>,
+    ) -> elua::Result<()>,
+}
+
+impl<'a, T> FromType<T> for ReflectedLuaTableProxy
+where
+    T: TableProxy
+{
+    fn from_type() -> Self {
+        Self {
+            table_name: T::table_name(),
+            fn_as_table: |lua, this| -> elua::Result<elua::Table> {
+                let this = unsafe { this.cast::<T>().as_ref() };
+                this.as_table(lua)
+            },
+            fn_apply: |lua, ptr, table| {
+                let this = unsafe { ptr.cast::<T>().as_mut() };
+                let tbl = T::from_table(lua, table.clone())?;
+                *this = tbl;
+                Ok(())
+            },
+        }
+    }
+}
+
+/// A struct used for converting types that implement `LuaProxy` to and from Lua.
 #[derive(Clone)]
 pub struct ReflectLuaProxy {
     pub fn_as_uservalue:
-        for<'a> fn(lua: &'a mlua::Lua, this_ptr: NonNull<u8>) -> mlua::Result<mlua::AnyUserData<'a>>,
+        for<'a> fn(lua: &'a elua::State, this_ptr: NonNull<u8>) -> elua::Result<elua::AnyUserdata<'a>>,
     pub fn_apply: for<'a> fn(
-        lua: &'a mlua::Lua,
+        lua: &'a elua::State,
         this_ptr: NonNull<u8>,
-        apply: &'a mlua::AnyUserData<'a>,
-    ) -> mlua::Result<()>,
+        apply: &'a elua::AnyUserdata<'a>,
+    ) -> elua::Result<()>,
 }
 
 impl<'a, T> FromType<T> for ReflectLuaProxy
 where
-    T: Reflect + LuaProxy + Clone + mlua::FromLua<'a> + mlua::UserData
+    T: Reflect + LuaProxy + Clone + elua::FromLua<'a> + elua::Userdata
 {
     fn from_type() -> Self {
         Self {
-            fn_as_uservalue: |lua, this| -> mlua::Result<mlua::AnyUserData> {
+            fn_as_uservalue: |lua, this| -> elua::Result<elua::AnyUserdata> {
                 let this = unsafe { this.cast::<T>().as_ref() };
                 <T as LuaProxy>::as_lua_value(lua, this)
             },
@@ -77,16 +124,45 @@ where
     }
 }
 
-impl<'lua> mlua::FromLua<'lua> for ScriptDynamicBundle {
-    fn from_lua(value: mlua::Value<'lua>, _lua: &'lua mlua::Lua) -> mlua::Result<Self> {
-        match value {
-            mlua::Value::UserData(ud) => Ok(ud.borrow::<Self>()?.clone()),
-            mlua::Value::Nil => Err(mlua::Error::FromLuaConversionError {
-                from: "Nil",
-                to: "DynamicBundle",
-                message: Some("Value was nil".to_string()),
-            }),
-            _ => panic!(),
+impl<'lua> elua::FromLua<'lua> for ScriptDynamicBundle {
+    fn from_lua(_: &'lua elua::State, val: elua::Value<'lua>) -> elua::Result<Self> {
+        match val {
+            elua::Value::Userdata(ud) => Ok(ud.as_ref::<Self>()?.clone()),
+            elua::Value::Nil => Err(elua::Error::Nil),
+            _ => unreachable!(),
         }
     }
 }
+
+impl<'lua> elua::FromLuaVec<'lua> for ScriptDynamicBundle {
+    fn from_lua_value_vec(state: &'lua elua::State, mut values: elua::ValueVec<'lua>) -> elua::Result<Self> {
+        if let Some(v) = values.pop_front() {
+            Ok(ScriptDynamicBundle::from_lua(state, v)?)
+        } else {
+            Err(elua::Error::Nil)
+        }
+    }
+}
+
+impl elua::Userdata for ScriptDynamicBundle {
+    fn name() -> String {
+        "Bundle".to_string()
+    }
+
+    fn build<'a>(_: &elua::State, builder: &mut elua::UserdataBuilder<'a, Self>) -> elua::Result<()> {
+        builder
+            .function("new", |_, ()| Ok(ScriptDynamicBundle(DynamicBundle::new())))
+            .method_mut("push", |_, this, comp: elua::AnyUserdata| {
+                let script_brw = comp.execute_method::<_, ScriptBorrow>(FN_NAME_INTERNAL_REFLECT, ())?;
+                let reflect = script_brw.reflect_branch.as_component_unchecked();
+
+                let refl_data = script_brw.data.unwrap();
+                let refl_data = refl_data.as_ref();
+                reflect.bundle_insert(&mut this.0, refl_data);
+
+                Ok(())
+            });
+
+        Ok(())
+    }
+}

lyra-scripting/src/lua/script.rs

@@ -1,6 +1,6 @@
 use std::sync::Mutex;
 
-use mlua::IntoLua;
+use elua::{AsLua, StdLibraries, StdLibrary};
 use tracing::{debug, trace};
 
 use crate::{ScriptHost, ScriptError, ScriptWorldPtr, ScriptEntity};
@@ -8,40 +8,37 @@ use crate::{ScriptHost, ScriptError, ScriptWorldPtr, ScriptEntity};
 #[derive(Default)]
 pub struct LuaHost;
 
-fn try_call_lua_function(lua: &mlua::Lua, fn_name: &str) -> Result<(), ScriptError> {
-    let globals = lua.globals();
+fn try_call_lua_function(lua: &elua::State, fn_name: &str) -> Result<(), ScriptError> {
+    let globals = lua.globals()?;
 
-    match globals.get::<_, mlua::Function>(fn_name) {
-        Ok(init_fn) => {
-            init_fn.call(())
+    if globals.has_key(fn_name)? {
+        let lua_fn = globals.get::<_, elua::Function>(fn_name)?;
+        lua_fn.exec(())
             .map_err(ScriptError::MluaError)?;
-        },
-        Err(mlua::Error::FromLuaConversionError { from: "nil", to: "function", message: None }) => {
-            trace!("Function '{}' was not found, ignoring...", fn_name)
-            // ignore
-        },
-        Err(e) => {
-            return Err(ScriptError::MluaError(e));
-        },
     }
 
     Ok(())
 }
 
 impl ScriptHost for LuaHost {
-    type ScriptContext = Mutex<mlua::Lua>;
+    type ScriptContext = Mutex<elua::State>;
 
     fn load_script(&mut self, script: &[u8], script_data: &crate::ScriptData, providers: &mut crate::ScriptApiProviders<Self>) -> Result<Self::ScriptContext, crate::ScriptError> {
-        let mut ctx = Mutex::new(mlua::Lua::new());
+        let mut ctx = Mutex::new({
+            let s = elua::State::new();
+            s.expose_libraries(&[StdLibrary::Debug, StdLibrary::Package]);
+            s
+        });
+        
+        //Mutex::new(elua::State::new_with_libraries(StdLibraries::all()));
 
         for provider in providers.apis.iter_mut() {
             provider.expose_api(script_data, &mut ctx)?;
         }
 
         let lua = ctx.lock().unwrap();
-        lua.load(script)
-            .set_name(&script_data.name)
-            .exec()
+        lua.load(&script_data.name, script)?
+            .execute(())
             .map_err(|e| ScriptError::MluaError(e))?;
         drop(lua);
 
@@ -71,9 +68,9 @@ impl ScriptHost for LuaHost {
 
         let ctx = ctx.lock().expect("Failure to get Lua ScriptContext");
         
-        let globals = ctx.globals();
-        globals.set("world", world.into_lua(&ctx)?)?;
-        globals.set("entity", ScriptEntity(script_data.entity).into_lua(&ctx)?)?;
+        let globals = ctx.globals()?;
+        globals.set("world", world.as_lua(&ctx)?)?;
+        globals.set("entity", ScriptEntity(script_data.entity).as_lua(&ctx)?)?;
         
         try_call_lua_function(&ctx, function_name)?;
 

lyra-scripting/src/lua/test.rs

@@ -1,177 +0,0 @@
-use std::{sync::{Mutex, Arc}, ptr::NonNull};
-
-use lyra_ecs::{World, system::{GraphExecutor, IntoSystem}};
-use lyra_resource::ResourceManager;
-use mlua::{IntoLua, AnyUserDataExt};
-use tracing_subscriber::{layer::SubscriberExt, fmt, util::SubscriberInitExt};
-
-use crate::{ScriptData, ScriptApiProvider, ScriptApiProviders, ScriptError, ScriptList, Script, ScriptContexts};
-
-use super::{LuaHost, LuaLoader, LuaScript, lua_script_update_stage_system, lua_scripts_create_contexts, LuaContext};
-
-fn enable_tracing() {
-    tracing_subscriber::registry()
-        .with(fmt::layer().with_writer(std::io::stdout))
-        .init();
-}
-
-#[derive(Default)]
-struct PrintfProvider;
-
-impl ScriptApiProvider for PrintfProvider {
-    type ScriptContext = Mutex<mlua::Lua>;
-
-    fn expose_api(&mut self, script_data: &ScriptData, ctx: &mut Self::ScriptContext) -> Result<(), crate::ScriptError> {
-        let ctx = ctx.lock().unwrap();
-
-        fn printf(lua: &mlua::Lua, (mut text, formats): (String, mlua::Variadic<mlua::Value>)) -> mlua::Result<()> {
-            let mut formatted = String::new();
-            let mut arg_num = 0;
-
-            while let Some(start) = text.find("{}") {
-                let val_str = match formats.get(arg_num) {
-                    Some(v) => match v {
-                        mlua::Value::Nil => "nil".to_string(),
-                        mlua::Value::Boolean(b) => b.to_string(),
-                        mlua::Value::LightUserData(_) => {
-                            return Err(mlua::Error::RuntimeError(format!("unable to get string representation of LightUserData")));
-                        },
-                        mlua::Value::Integer(i) => i.to_string(),
-                        mlua::Value::Number(n) => n.to_string(),
-                        mlua::Value::String(s) => s.to_str().unwrap().to_string(),
-                        mlua::Value::Table(_) => {
-                            return Err(mlua::Error::RuntimeError(format!("unable to get string representation of Table")));
-                        },
-                        mlua::Value::Function(_) => {
-                            return Err(mlua::Error::RuntimeError(format!("unable to get string representation of Function")));
-                        },
-                        mlua::Value::Thread(_) => {
-                            return Err(mlua::Error::RuntimeError(format!("unable to get string representation of Thread")));
-                        },
-                        mlua::Value::UserData(ud) => {
-                            if let Ok(tos) = ud.get::<_, mlua::Function>(mlua::MetaMethod::ToString.to_string()) {
-                                tos.call::<_, String>(())?
-                            } else {
-                                return Err(mlua::Error::RuntimeError(format!("UserData does not implement MetaMethod '__tostring'")));
-                            }
-                        },
-                        mlua::Value::Error(e) => e.to_string(),
-                    },
-                    None => {
-                        let got_args = arg_num;// - 1;
-
-                        // continue searching for {} to get the number of format spots for the error message.
-                        while let Some(start) = text.find("{}") {
-                            text = text[start + 2..].to_string();
-                            arg_num += 1;
-                        }
-
-                        return Err(mlua::Error::BadArgument {
-                            to: Some("printf".to_string()),
-                            pos: 2,
-                            name: Some("...".to_string()),
-                            cause: Arc::new(mlua::Error::RuntimeError(format!("not enough args \
-                                given for the amount of format areas in the string. Expected {}, \
-                                got {}.", arg_num, got_args)))
-                        })
-                    },
-                };
-
-                formatted = format!("{}{}{}", formatted, &text[0..start], val_str);
-
-                text = text[start + 2..].to_string();
-
-                arg_num += 1;
-            }
-
-            if arg_num < formats.len() {
-                return Err(mlua::Error::BadArgument {
-                    to: Some("printf".to_string()),
-                    pos: 2,
-                    name: Some("...".to_string()),
-                    cause: Arc::new(mlua::Error::RuntimeError(format!("got more args \
-                        than format areas in the string. Expected {}, got {}.", formats.len(), arg_num)))
-                })
-            }
-            
-            formatted = format!("{}{}", formatted, text);
-
-            lua.globals()
-                .get::<_, mlua::Function>("print")
-                .unwrap()
-                .call::<_, ()>(formatted)
-                .unwrap();
-
-            Ok(())
-        }
-        
-        let printf_func = ctx.create_function(printf).unwrap();
-
-        let globals = ctx.globals();
-        globals.set("printf", printf_func).unwrap();
-        
-        Ok(())
-    }
-
-    fn setup_script(&mut self, _data: &ScriptData, _ctx: &mut Self::ScriptContext) -> Result<(), crate::ScriptError> {
-        Ok(())
-    }
-
-    fn update_script_environment(&mut self, world: crate::ScriptWorldPtr, _data: &ScriptData, ctx: &mut Self::ScriptContext) -> Result<(), crate::ScriptError> {
-        let ctx = ctx.lock().unwrap();
-        let globals = ctx.globals();
-
-        let world_lua = world.into_lua(&ctx)
-            .map_err(ScriptError::MluaError)?;
-        globals.set("world", world_lua)
-            .map_err(ScriptError::MluaError)?;
-
-        Ok(())
-    }
-}
-
-/// Tests a simple lua script that just prints some test
-#[test]
-pub fn lua_print() {
-    enable_tracing();
-
-    let mut world = World::new();
-
-    let test_provider = PrintfProvider::default();
-    let mut providers = ScriptApiProviders::<LuaHost>::default();
-    providers.add_provider(test_provider);
-
-    let host = LuaHost::default();
-
-    world.add_resource(host);
-    world.add_resource(providers);
-    world.add_resource(ScriptContexts::<LuaContext>::default());
-
-    let mut res_loader = ResourceManager::new();
-    res_loader.register_loader::<LuaLoader>();
-
-    let script =
-        r#"
-            print("Hello World")
-            
-            function update()
-                print("updated")
-                printf("I love to eat formatted {}!", "food")
-                --printf("World is {}", world)
-            end
-        "#;
-    let script = script.as_bytes();
-
-    let script = res_loader.load_bytes::<LuaScript>("test_script.lua", 
-        "text/lua", script.to_vec(), 0, script.len()).unwrap();
-    let script = Script::new("text_script.lua", script);
-    
-    let scripts = ScriptList::new(vec![script]);
-
-    world.spawn((scripts,));
-
-    let mut exec = GraphExecutor::new();
-    exec.insert_system("lua_create_contexts", lua_scripts_create_contexts.into_system(), &[]);
-    exec.insert_system("lua_update_scripts", lua_script_update_stage_system.into_system(), &["lua_create_contexts"]);
-    exec.execute(NonNull::from(&world), true).unwrap();
-}

lyra-scripting/src/lua/world.rs

@@ -1,28 +1,33 @@
-use std::{sync::{Arc, RwLock}, ptr::NonNull, any::Any, ops::Deref};
+use std::{any::Any, ptr::NonNull, sync::Arc};
 
+use elua::AsLua;
 use lyra_ecs::query::dynamic::QueryDynamicType;
 use lyra_reflect::{TypeRegistry, ReflectWorldExt, RegisteredType};
-use mlua::{AnyUserDataExt, IntoLua, IntoLuaMulti};
-
 use crate::{ScriptWorldPtr, ScriptEntity, ScriptDynamicBundle, ScriptBorrow};
 
-use super::{ReflectedIterator, DynamicViewIter, FN_NAME_INTERNAL_REFLECT_TYPE, reflect_user_data, ReflectLuaProxy, FN_NAME_INTERNAL_REFLECT};
+use super::{reflect_user_data, DynamicViewIter, LuaTableProxyLookup, ReflectLuaProxy, ReflectedIterator, ReflectedLuaTableProxy, FN_NAME_INTERNAL_REFLECT, FN_NAME_INTERNAL_REFLECT_TYPE};
 
-impl<'lua> mlua::FromLua<'lua> for ScriptEntity {
-    fn from_lua(value: mlua::Value<'lua>, _lua: &'lua mlua::Lua) -> mlua::Result<Self> {
+impl<'lua> elua::FromLua<'lua> for ScriptEntity {
+    fn from_lua(_: &'lua elua::State, value: elua::Value<'lua>) -> elua::Result<Self> {
         match value {
-            mlua::Value::UserData(ud) => Ok(ud.borrow::<Self>()?.clone()),
-            mlua::Value::Nil => Err(mlua::Error::FromLuaConversionError { from: "Nil", to: "ScriptEntity", message: Some("Value was nil".to_string()) }),
+            elua::Value::Userdata(ud) => Ok(ud.as_ref::<Self>()?.clone()),
+            elua::Value::Nil => Err(elua::Error::type_mismatch("ScriptEntity", "Nil")),
             _ => panic!(),
         }
     }
 }
 
-impl mlua::UserData for ScriptEntity {
-    fn add_methods<'lua, M: mlua::prelude::LuaUserDataMethods<'lua, Self>>(methods: &mut M) {
-        methods.add_meta_method(mlua::MetaMethod::ToString, |_, this, ()| {
+impl elua::Userdata for ScriptEntity {
+    fn name() -> String {
+        "Entity".to_string()
+    }
+
+    fn build<'a>(state: &elua::State, builder: &mut elua::userdata::UserdataBuilder<'a, Self>) -> elua::Result<()> {
+        builder.meta_method(elua::MetaMethod::ToString, |_, this, ()| {
             Ok(format!("{:?}", this.0))
-        })
+        });
+
+        Ok(())
     }
 }
 
@@ -32,64 +37,74 @@ pub enum WorldError {
     LuaInvalidUsage(String),
 }
 
-impl mlua::UserData for ScriptWorldPtr {
-    fn add_methods<'lua, M: mlua::prelude::LuaUserDataMethods<'lua, Self>>(methods: &mut M) {
-        methods.add_method_mut("spawn", |_, this, (bundle,): (ScriptDynamicBundle,)| {
-            let world = unsafe { this.inner.as_mut() };
+impl<'a> elua::FromLua<'a> for ScriptWorldPtr {
+    fn from_lua(lua: &'a elua::State, val: elua::Value<'a>) -> elua::Result<Self> {
+        match val {
+            elua::Value::Userdata(ud) => Ok(ud.as_ref::<Self>()?.clone()),
+            elua::Value::Nil => Err(elua::Error::type_mismatch("ScriptWorldPtr", "Nil")),
+            _ => panic!(),
+        }
+    }
+}
+
+impl elua::Userdata for ScriptWorldPtr {
+    fn name() -> String {
+        "World".to_string()
+    }
+
+    fn build<'a>(state: &elua::State, builder: &mut elua::UserdataBuilder<'a, Self>) -> elua::Result<()> {
+        builder
+            .method("test", |_, this, ()| {
+                println!("hgello world");
+                Ok(())
+            })
+            .method_mut("spawn", |_, this, bundle: ScriptDynamicBundle| {
+                let world = this.as_mut();
 
                 Ok(ScriptEntity(world.spawn(bundle.0)))
-        });
-
-        methods.add_method("view_iter", |lua, this, queries: mlua::Variadic<mlua::AnyUserData>| {
-            let world = unsafe { this.inner.as_ref() };
-            let mut view = world.dynamic_view();
-
-            for comp in queries.into_iter() {
-                let script_brw = comp.call_function::<_, ScriptBorrow>(FN_NAME_INTERNAL_REFLECT_TYPE, ())
-                    .expect("Type does not implement '__internal_reflect_type' properly");
-                let refl_comp = script_brw.reflect_branch.as_component_unchecked();
-
-                let dyn_type =  QueryDynamicType::from_info(refl_comp.info);
-                view.push(dyn_type);
-            }
-
-            let iter = view.into_iter();
-            let mut reflected_iter = ReflectedIterator {
-                world: this.clone(),
-                dyn_view: DynamicViewIter::from(iter),
-                reflected_components: None,
-            };
-
-            let f = lua.create_function_mut(move |lua, ()| {
-                if let Some(row) = reflected_iter.next_lua(lua) {
-                    let row = row.row.into_iter().map(|i| i.comp_ud.into_lua(lua))
-                        .collect::<mlua::Result<Vec<mlua::Value>>>()?;
-                    Ok(mlua::MultiValue::from_vec(row))
-                } else {
-                    Ok(mlua::Value::Nil.into_lua_multi(lua)?)
-                }
-            })?;
-
-            Ok(f)
-        });
-
-        methods.add_method_mut("view", |lua, this, (system, queries): (mlua::Function, mlua::Variadic<mlua::AnyUserData>)| {
+            })
+            .method_mut("view", |lua, this, (system, queries): (elua::Function, elua::ValueVec)| {
                 if queries.is_empty() {
-                return Err(mlua::Error::BadArgument { to: Some("world:view".to_string()), pos: 2, name: Some("...".to_string()), cause: 
-                    Arc::new(mlua::Error::external(WorldError::LuaInvalidUsage("no component types provided".to_string())))
+                    return Err(
+                        elua::Error::BadArgument { func: Some("World:view".to_string()), arg_index: 2, arg_name: Some("query...".to_string()),
+                        error: Arc::new(elua::Error::other(WorldError::LuaInvalidUsage("no component types provided".to_string())))
                     });
                 }
                 
                 let world = unsafe { this.inner.as_ref() };
                 let mut view = world.dynamic_view();
 
-            for comp in queries.into_iter() {
-                let reflect = comp.call_function::<_, ScriptBorrow>(FN_NAME_INTERNAL_REFLECT_TYPE, ())
+                for (idx, comp) in queries.into_iter().enumerate() {
+                    match comp {
+                        elua::Value::Table(t) => {
+                            let name: String = t.get("__name")?;
+
+                            let lookup = world.get_resource::<LuaTableProxyLookup>();
+                            let info = lookup.comp_info_from_name.get(&name)
+                                .ok_or_else(|| 
+                                    elua::Error::BadArgument {
+                                        func: Some("World:view".to_string()),
+                                        arg_index: 2 + idx as i32,
+                                        arg_name: Some("query...".to_string()),
+                                        error: Arc::new(
+                                            elua::Error::Runtime(format!("the 'Table' with name {} is unknown to the engine!", name))
+                                        )
+                                    }
+                                )?;
+                            
+                            let dyn_type =  QueryDynamicType::from_info(info.clone());
+                            view.push(dyn_type);
+                        },
+                        elua::Value::Userdata(ud) => {
+                            let reflect = ud.execute_function::<_, ScriptBorrow>(FN_NAME_INTERNAL_REFLECT_TYPE, ())
                                 .expect("Type does not implement 'reflect_type' properly");
                             let refl_comp = reflect.reflect_branch.as_component_unchecked();
 
                             let dyn_type =  QueryDynamicType::from_info(refl_comp.info);
                             view.push(dyn_type);
+                        },
+                        _ => todo!()
+                    }
                 }
 
                 let iter = view.into_iter();
@@ -103,19 +118,15 @@ impl mlua::UserData for ScriptWorldPtr {
                 let mut has_ticked = false;
 
                 while let Some(row) = reflected_iter.next_lua(lua) {
-
                     let r = row.row.into_iter()
-                    .map(|r| (r.proxy, r.comp_ud, r.comp_ptr))
+                        .map(|r| (r.comp_val, r.comp_ptr))
                         .collect::<Vec<_>>();
-                let (reflects, values, ptrs):
-                    (Vec<&ReflectLuaProxy>, Vec<mlua::AnyUserData>, Vec<NonNull<u8>>)
-                        = itertools::multiunzip(r);
-                let value_row: Vec<_> = values.into_iter().map(|ud| ud.into_lua(lua)).collect::<mlua::Result<Vec<mlua::Value>>>()?;
-                let mult_val = mlua::MultiValue::from_vec(value_row);
-                let res: mlua::MultiValue = system.call(mult_val)?;
+                    let (values, ptrs) = itertools::multiunzip::<(Vec<elua::Value>, Vec<NonNull<u8>>), _>(r);
+                    let mult_val = elua::ValueVec::from(values);
+                    let res: elua::ValueVec = system.exec(mult_val)?;
 
                     // if values were returned, find the type in the type registry, and apply the new values
-                if res.len() <= reflects.len() {
+                    if res.len() <= ptrs.len() {
                         // we only want to tick one time per system
                         if !has_ticked { 
                             current = world.tick();
@@ -125,9 +136,9 @@ impl mlua::UserData for ScriptWorldPtr {
                         for (i, comp) in res.into_iter().enumerate() {
                             let ptr = ptrs[i];
 
-                        match comp.as_userdata() {
-                            Some(ud) => {
-                                let lua_comp = reflect_user_data(ud);
+                            match comp {
+                                elua::Value::Userdata(ud) => {
+                                    let lua_comp = reflect_user_data(&ud);
                                     let refl_comp = lua_comp.reflect_branch.as_component_unchecked();
                                     let lua_typeid = refl_comp.info.type_id.as_rust();
 
@@ -142,27 +153,48 @@ impl mlua::UserData for ScriptWorldPtr {
                                     let reg = this.as_ref().get_resource::<TypeRegistry>();
                                     let reg_type = reg.get_type(lua_typeid).unwrap();
                                     
-                                let proxy = reg_type.get_data::<ReflectLuaProxy>().unwrap();
-                                (proxy.fn_apply)(lua, ptr, ud)?;
-                            }
-                            None => {
-                                panic!("A userdata value was not returned!");
+                                    let proxy = reg_type.get_data::<ReflectLuaProxy>()
+                                        .expect("Type does not have ReflectLuaProxy as a TypeData");
+                                    (proxy.fn_apply)(lua, ptr, &ud)?;
+                                },
+                                elua::Value::Table(tbl) => {
+                                    let name: String = tbl.get("__name")?;
+
+                                    let lookup = world.get_resource::<LuaTableProxyLookup>();
+                                    let tyid = lookup.typeid_from_name.get(&name).unwrap();
+
+                                    // update the component tick
+                                    let world = unsafe { this.inner.as_mut() };
+                                    let arch = world.entity_archetype_mut(row.entity).unwrap();
+                                    let idx = arch.entities().get(&row.entity).unwrap().clone();
+                                    let c = arch.get_column_mut(tyid.clone().into()).unwrap();
+                                    c.entity_ticks[idx.0 as usize] = current;
+
+                                    // apply the new component data
+                                    let reg = this.as_ref().get_resource::<TypeRegistry>();
+                                    let reg_type = reg.get_type(*tyid).unwrap();
+                                    
+                                    let proxy = reg_type.get_data::<ReflectedLuaTableProxy>()
+                                        .expect("Type does not have ReflectLuaProxy as a TypeData");
+                                    (proxy.fn_apply)(lua, ptr.cast(), &tbl)?;
+                                },
+                                _ => {
+                                    panic!("A userdata or table value was not returned!");
                                 }
                             }
                         }
                     } else {
                         let msg = format!("Too many arguments were returned from the World view!
-                        At most, the expected number of results is {}.", reflects.len());
-                    return Err(mlua::Error::external(WorldError::LuaInvalidUsage(msg)));
+                            At most, the expected number of results is {}.", ptrs.len());
+                        return Err(elua::Error::Runtime(msg));
                     }
                 }
 
                 Ok(())
-        });
-
-        methods.add_method_mut("resource", |lua, this, (ty,): (mlua::AnyUserData,)| {
+            })
+            .method_mut("resource", |lua, this, (ty,): (elua::AnyUserdata,)| {
                 let reflect = ty
-                .call_function::<_, ScriptBorrow>(FN_NAME_INTERNAL_REFLECT_TYPE, ())
+                    .execute_function::<_, ScriptBorrow>(FN_NAME_INTERNAL_REFLECT_TYPE, ())
                     .expect("Type does not implement 'reflect_type' properly");
                 
                 let res = reflect.reflect_branch.as_resource_unchecked();
@@ -174,11 +206,13 @@ impl mlua::UserData for ScriptWorldPtr {
                         .expect("Type does not have ReflectLuaProxy as a TypeData");
 
                     (proxy.fn_as_uservalue)(lua, res_ptr)
-                    .and_then(|ud| ud.into_lua(lua))
+                        .and_then(|ud| ud.as_lua(lua))
                 } else {
                     // if the resource is not found in the world, return nil
-                Ok(mlua::Value::Nil)
+                    Ok(elua::Value::Nil)
                 }
             });
+
+        Ok(())
     }
 }

lyra-scripting/src/lua/wrappers/delta_time.rs

@@ -1,4 +1,4 @@
-use std::{ops::Deref, any::TypeId};
+use std::any::TypeId;
 
 use lyra_game::DeltaTime;
 use crate::{lyra_engine, lua::{FN_NAME_INTERNAL_REFLECT_TYPE, LuaWrapper}, ScriptBorrow};
@@ -20,28 +20,33 @@ impl std::ops::DerefMut for LuaDeltaTime {
     }
 }
 
-impl<'lua> mlua::FromLua<'lua> for LuaDeltaTime {
-    fn from_lua(value: mlua::prelude::LuaValue<'lua>, lua: &'lua mlua::prelude::Lua) -> mlua::prelude::LuaResult<Self> {
+impl<'lua> elua::FromLua<'lua> for LuaDeltaTime {
+    fn from_lua(lua: &'lua elua::State, value: elua::Value<'lua>) -> elua::Result<Self> {
         match value {
-            mlua::Value::UserData(ud) => Ok(ud.borrow::<Self>()?.clone()),
+            elua::Value::Userdata(ud) => Ok(ud.as_ref::<Self>()?.clone()),
             _ => unreachable!(),
         }
     }
 }
 
-impl mlua::UserData for LuaDeltaTime {
-    fn add_methods<'lua, M: mlua::prelude::LuaUserDataMethods<'lua, Self>>(methods: &mut M) {
-        methods.add_method("get", |_, this, ()| {
-            Ok(*this.0.deref())
-        });
+impl elua::Userdata for LuaDeltaTime {
+    fn name() -> String {
+        "DeltaTime".to_string()
+    }
 
-        methods.add_meta_method(mlua::MetaMethod::ToString, |_, this, ()| {
-            Ok(format!("{}", this.0.deref()))
-        });
-
-        methods.add_function(FN_NAME_INTERNAL_REFLECT_TYPE, |_, ()| {
+    fn build<'a>(state: &elua::State, builder: &mut elua::UserdataBuilder<'a, Self>) -> elua::Result<()> {
+        builder
+            .method("get", |_, this, ()| {
+                Ok(*this.0)
+            })
+            .meta_method(elua::MetaMethod::ToString, |_, this, ()| {
+                Ok(format!("{}", *this.0))
+            })
+            .function(FN_NAME_INTERNAL_REFLECT_TYPE, |_, ()| {
                 Ok(ScriptBorrow::from_resource::<DeltaTime>(None))
             });
+
+        Ok(())
     }
 }
 

lyra-scripting/src/lua/wrappers/math.rs

@@ -7,7 +7,7 @@ use lyra_scripting_derive::wrap_math_vec_copy;
 use crate as lyra_scripting;
 
 // f32 types
-wrap_math_vec_copy!(
+/* wrap_math_vec_copy!(
     math::Vec2,
     derives(PartialEq),
     fields(x, y),
@@ -32,7 +32,11 @@ wrap_math_vec_copy!(
         Mod(LuaVec3, f32),
         Eq, Unm, ToString
     )
-);
+); */
+
+
+// =================================================
+
 
 /* wrap_math_vec_copy!(
     math::Vec3A,
@@ -379,7 +383,20 @@ wrap_math_vec_copy!(
     )
 ); */
 
-wrap_math_vec_copy!(
+
+
+
+
+
+// ============================================================
+
+
+
+
+
+
+
+/* wrap_math_vec_copy!(
     math::Quat,
     derives(PartialEq),
     no_new,
@@ -559,3 +576,4 @@ wrap_math_vec_copy!(
         });
     }
 );
+ */