lua: code cleanup

lyra-scripting/src/lua/dynamic_iter.rs

@@ -1,4 +1,4 @@
-use std::{ptr::NonNull, ops::Deref};
+use std::ptr::NonNull;
 
 use lyra_ecs::{query::dynamic::DynamicViewStateIter, Entity};
 use lyra_reflect::TypeRegistry;

lyra-scripting/src/lua/ecs/query/mod.rs

@@ -1,5 +1,4 @@
 mod res;
-use mlua::ObjectLike;
 pub use res::*;
 
 use crate::{lua::{LuaComponent, FN_NAME_INTERNAL_ECS_QUERY_RESULT}, ScriptWorldPtr};

lyra-scripting/src/lua/ecs/query/res.rs

@@ -2,7 +2,7 @@ use lyra_reflect::{ReflectWorldExt, RegisteredType};
 use mlua::IntoLua;
 
 use crate::{
-    lua::{LuaComponent, ReflectLuaProxy, WorldError, FN_NAME_INTERNAL_ECS_QUERY_RESULT},
+    lua::{LuaComponent, ReflectLuaProxy, FN_NAME_INTERNAL_ECS_QUERY_RESULT},
     ScriptWorldPtr,
 };
 

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

@@ -1,9 +1,7 @@
-use std::{cell::RefCell, ptr::NonNull, rc::Rc, sync::Arc};
+use std::{ptr::NonNull, sync::Arc};
 
 use lyra_ecs::{query::dynamic::{DynamicViewState, QueryDynamicType}, Entity};
-use lyra_reflect::List;
-use mlua::{FromLuaMulti, IntoLua, IntoLuaMulti, ObjectLike};
-use tracing::debug;
+use mlua::{IntoLua, IntoLuaMulti, ObjectLike};
 
 use crate::{lua::{LuaComponent, LuaEntityRef, ReflectedIteratorOwned, TypeLookup, WorldError, FN_NAME_INTERNAL_ECS_QUERY_RESULT, FN_NAME_INTERNAL_REFLECT_TYPE}, ScriptBorrow, ScriptWorldPtr};
 
@@ -105,7 +103,6 @@ impl mlua::UserData for View {
 #[derive(Clone)]
 pub struct ViewResult {
     world: ScriptWorldPtr,
-    items: Vec<ViewQueryItem>,
     reflect_iter: Arc<atomic_refcell::AtomicRefCell<ReflectedIteratorOwned>>,
     /// The queries and the index they would be inserted in the result.
     queries: Vec<(LuaQuery, u32)>,
@@ -178,14 +175,14 @@ impl ViewResult {
 
         Ok(Self {
             world,
-            items,
             reflect_iter: Arc::new(atomic_refcell::AtomicRefCell::new(reflected_iter)),
             queries,
             reg_key: Arc::new(atomic_refcell::AtomicRefCell::new(None)),
         })
     }
 
-    fn next(&mut self, lua: &mlua::Lua) -> Result<Option<(Entity, mlua::MultiValue)>, mlua::Error> {
+    /// Get the next row of components
+    fn next_components(&mut self, lua: &mlua::Lua) -> Result<Option<(Entity, mlua::MultiValue)>, mlua::Error> {
         let mut query_iter = self.reflect_iter.borrow_mut();
         if let Some(row) = query_iter.next_lua(lua) {
             let r = row
@@ -194,7 +191,7 @@ impl ViewResult {
                 .into_iter()
                 .map(|r| (r.comp_val, r.comp_ptr.cast::<()>()))
                 .collect::<Vec<_>>();
-            let (values, ptrs) =
+            let (values, _) =
                 itertools::multiunzip::<(Vec<mlua::Value>, Vec<NonNull<()>>), _>(r);
             let mult_val = mlua::MultiValue::from_iter(values.into_iter());
             Ok(Some((row.entity, mult_val)))
@@ -202,6 +199,32 @@ impl ViewResult {
             Ok(None)
         }
     }
+
+    /// Get the query results
+    fn get_query_results(&self) -> mlua::Result<Option<Vec<(mlua::Value, u32)>>> {
+        let mut query_vals = vec![];
+        let mut query_allows = true;
+        for (query, i) in &self.queries {
+            let qres = query.get_query_result(self.world.clone())?;
+            if let Some(val) = qres.as_boolean() {
+                if val {
+                    query_allows = false;
+                    break;
+                }
+            } else if qres.is_nil() {
+                query_allows = false;
+                break;
+            }
+
+            query_vals.push((qres, *i));
+        }
+
+        if !query_allows {
+            Ok(None)
+        } else {
+            Ok(Some(query_vals))
+        }
+    }
 }
 
 impl mlua::FromLua for ViewResult {
@@ -221,8 +244,23 @@ impl mlua::FromLua for ViewResult {
 impl mlua::UserData for ViewResult {
     fn add_methods<M: mlua::UserDataMethods<Self>>(methods: &mut M) {
         methods.add_method_mut("next", |lua, this, ()| {
-            match this.next(lua)? {
-                Some((_, val)) => Ok(val),
+            let query_vals = match this.get_query_results()? {
+                Some(v) => v,
+                None => {
+                    return mlua::Value::Nil.into_lua_multi(lua);
+                }
+            };
+
+            match this.next_components(lua)? {
+                Some((en, mut vals)) => {
+                    // insert query values to the result row
+                    for (qval, qi) in query_vals {
+                        vals.insert(qi as _, qval);
+                    }
+
+                    vals.push_front(LuaEntityRef::new(this.world.clone(), en).into_lua(lua)?);
+                    Ok(vals)
+                },
                 None => mlua::Value::Nil.into_lua_multi(lua)
             }
         });
@@ -236,28 +274,14 @@ impl mlua::UserData for ViewResult {
                 if let Some(key) = key_mut.as_ref() {
                     let mut this = lua.registry_value::<Self>(&key)?;
 
-                    let mut query_vals = vec![];
-                    let mut query_allows = true;
-                    for (query, i) in &this.queries {
-                        let qres = query.get_query_result(this.world.clone())?;
-                        if let Some(val) = qres.as_boolean() {
-                            if val {
-                                query_allows = false;
-                                break;
-                            }
-                        } else if qres.is_nil() {
-                            query_allows = false;
-                            break;
+                    let query_vals = match this.get_query_results()? {
+                        Some(v) => v,
+                        None => {
+                            return mlua::Value::Nil.into_lua_multi(lua);
                         }
+                    };
 
-                        query_vals.push((qres, *i));
-                    }
-
-                    if !query_allows {
-                        return mlua::Value::Nil.into_lua_multi(lua);
-                    }
-
-                    match this.next(lua)? {
+                    match this.next_components(lua)? {
                         Some((en, mut vals)) => {
                             let lua_en = LuaEntityRef::new(this.world, en)
                                 .into_lua(lua)?;

lyra-scripting/src/lua/entity_ref.rs

@@ -15,7 +15,7 @@ pub enum LuaComponent {
 }
 
 impl mlua::FromLua for LuaComponent {
-    fn from_lua(value: mlua::Value, lua: &mlua::Lua) -> mlua::Result<Self> {
+    fn from_lua(value: mlua::Value, _: &mlua::Lua) -> mlua::Result<Self> {
         let tyname = value.type_name();
         match value {
             mlua::Value::UserData(ud) => Ok(Self::UserData(ud)),

lyra-scripting/src/lua/proxy.rs

@@ -1,6 +1,6 @@
 use std::{any::TypeId, collections::HashMap, ptr::NonNull};
 
-use mlua::{ObjectLike, IntoLua};
+use mlua::ObjectLike;
 use lyra_ecs::{ComponentInfo, DynamicBundle};
 use lyra_reflect::Reflect;