lyra-scripting/scripts/lua/ecs.lua

@@ -26,7 +26,8 @@ function Has(val)
     return HasQuery.new(val)
 end
 
----Create a `NotQuery` filter that will allow results if 
+---Create a `NotQuery` filter that will allow results if the query returns nothing or
+---filter denies.
 ---
 ---@see NotQuery
 ---@param val function|table|userdata
@@ -34,3 +35,13 @@ end
 function Not(val)
     return NotQuery.new(val)
 end
+
+---Create a `OrQuery` filter that will allow results if any of the queries return something.
+---The queries are evaluated in the order they were provided.
+---
+---@see OrQuery
+---@param ... function|table|userdata
+---@return OrQuery
+function Not(...)
+    return OrQuery.new(...)
+end

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

@@ -10,6 +10,9 @@ pub use has::*;
 mod not;
 pub use not::*;
 
+mod or;
+pub use or::*;
+
 use lyra_ecs::Entity;
 
 use crate::{

lyra-scripting/src/lua/ecs/query/not.rs

@@ -36,10 +36,10 @@ impl mlua::UserData for LuaNotQuery {
 
                 match res {
                     LuaQueryResult::None => Ok(LuaQueryResult::FilterPass),
-                    super::LuaQueryResult::AlwaysNone => Ok(LuaQueryResult::FilterPass),
+                    LuaQueryResult::AlwaysNone => Ok(LuaQueryResult::FilterPass),
-                    super::LuaQueryResult::FilterPass => Ok(LuaQueryResult::FilterDeny),
+                    LuaQueryResult::FilterPass => Ok(LuaQueryResult::FilterDeny),
-                    super::LuaQueryResult::FilterDeny => Ok(LuaQueryResult::FilterPass),
+                    LuaQueryResult::FilterDeny => Ok(LuaQueryResult::FilterPass),
-                    super::LuaQueryResult::Some(_) => Ok(LuaQueryResult::FilterDeny),
+                    LuaQueryResult::Some(_) => Ok(LuaQueryResult::FilterDeny),
                 }
             },
         );

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

@@ -0,0 +1,48 @@
+use crate::{lua::FN_NAME_INTERNAL_ECS_QUERY_RESULT, ScriptEntity, ScriptWorldPtr};
+
+use super::{LuaQuery, LuaQueryResult};
+
+#[derive(Clone)]
+pub struct LuaOrQuery(Vec<LuaQuery>);
+
+impl mlua::FromLua for LuaOrQuery {
+    fn from_lua(value: mlua::Value, _: &mlua::Lua) -> mlua::Result<Self> {
+        let tyname = value.type_name();
+        value
+            .as_userdata()
+            .ok_or(mlua::Error::FromLuaConversionError {
+                from: tyname,
+                to: "OrQuery".into(),
+                message: None,
+            })
+            .and_then(|ud| ud.borrow::<Self>())
+            .map(|ud| ud.clone())
+    }
+}
+
+impl mlua::UserData for LuaOrQuery {
+    fn add_methods<M: mlua::UserDataMethods<Self>>(methods: &mut M) {
+        methods.add_function("new", |_, qs: mlua::Variadic<LuaQuery>| {
+            Ok(Self(qs.to_vec()))
+        });
+
+        methods.add_method(
+            FN_NAME_INTERNAL_ECS_QUERY_RESULT,
+            |_, this, (world, en): (ScriptWorldPtr, ScriptEntity)| {
+                for q in &this.0 {
+                    let res = q.get_query_result(world.clone(), en.0)?;
+
+                    match res {
+                        LuaQueryResult::None
+                        | LuaQueryResult::AlwaysNone
+                        | LuaQueryResult::FilterDeny => {}
+                        LuaQueryResult::FilterPass => return Ok(LuaQueryResult::FilterPass),
+                        LuaQueryResult::Some(v) => return Ok(LuaQueryResult::Some(v)),
+                    }
+                }
+
+                Ok(LuaQueryResult::FilterDeny)
+            },
+        );
+    }
+}

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

@@ -1,7 +1,7 @@
 use lyra_ecs::ResourceObject;
 use lyra_reflect::Reflect;
 
-use crate::{lua::{ecs::{query::{LuaChangedQuery, LuaHasQuery, LuaNotQuery, LuaResQuery}, View}, wrappers::*, LuaContext, LuaWrapper, RegisterLuaType, FN_NAME_INTERNAL_REFLECT, FN_NAME_INTERNAL_REFLECT_TYPE}, ScriptApiProvider, ScriptBorrow, ScriptData, ScriptDynamicBundle, ScriptWorldPtr};
+use crate::{lua::{ecs::{query::{LuaChangedQuery, LuaHasQuery, LuaNotQuery, LuaOrQuery, LuaResQuery}, View}, wrappers::*, LuaContext, LuaWrapper, RegisterLuaType, FN_NAME_INTERNAL_REFLECT, FN_NAME_INTERNAL_REFLECT_TYPE}, ScriptApiProvider, ScriptBorrow, ScriptData, ScriptDynamicBundle, ScriptWorldPtr};
 
 //fn register_lua_proxy::<T: 
 
@@ -49,6 +49,7 @@ impl ScriptApiProvider for LyraEcsApiProvider {
         globals.set("ChangedQuery", ctx.create_proxy::<LuaChangedQuery>()?)?;
         globals.set("HasQuery", ctx.create_proxy::<LuaHasQuery>()?)?;
         globals.set("NotQuery", ctx.create_proxy::<LuaNotQuery>()?)?;
+        globals.set("OrQuery", ctx.create_proxy::<LuaOrQuery>()?)?;
 
         expose_comp_table_wrapper::<LuaCamera>(&ctx, &globals, "Camera")?;
         expose_comp_table_wrapper::<LuaFreeFlyCamera>(&ctx, &globals, "FreeFlyCamera")?;