From bef61b765de52d14a52c3df86f8b3766846be272 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Fri, 7 Jun 2024 19:55:47 +0200
Subject: refactor(ecs): make tuple reduce operation more generic

---
 ecs/src/system.rs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'ecs/src/system.rs')

diff --git a/ecs/src/system.rs b/ecs/src/system.rs
index 6846a16..47872a6 100644
--- a/ecs/src/system.rs
+++ b/ecs/src/system.rs
@@ -186,13 +186,22 @@ pub struct NoInitParamFlag {}
 /// A type which can be used as input to a [`System`].
 pub trait Input: 'static {}
 
-impl<InputT: Input, Accumulator> TupleReduceElement<Accumulator> for InputT
+/// Component tuple reducing operation to get the parameters that takes input.
+pub struct ParamWithInputFilter;
+
+impl<InputT: Input, Accumulator> TupleReduceElement<Accumulator, ParamWithInputFilter>
+    for InputT
 where
     Accumulator: TupleWith<Self>,
 {
     type Return = Accumulator::With;
 }
 
+impl<Accumulator> TupleReduceElement<Accumulator, ParamWithInputFilter> for ()
+{
+    type Return = Accumulator;
+}
+
 #[derive(Debug)]
 pub struct ComponentRefMut<'a, ComponentT: Component>
 {
-- 
cgit v1.2.3-18-g5258