From 023b502153c7060fcfe66ce65e60089930e8ba82 Mon Sep 17 00:00:00 2001
From: Mincong Lu <139340600+mintlu8@users.noreply.github.com>
Date: Tue, 6 May 2025 08:00:17 +0800
Subject: [PATCH] Implemented `Alpha` for `f32`. (#18653)

# Objective

`f32` can be used to represent alpha, this streamlines generic code
related to colors.

## Solution

- Implemented `Alpha` for `f32`.
---
 crates/bevy_color/src/color_ops.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/crates/bevy_color/src/color_ops.rs b/crates/bevy_color/src/color_ops.rs
index 776ee906f9..a3266ba2d6 100644
--- a/crates/bevy_color/src/color_ops.rs
+++ b/crates/bevy_color/src/color_ops.rs
@@ -77,6 +77,20 @@ pub trait Alpha: Sized {
     }
 }
 
+impl Alpha for f32 {
+    fn with_alpha(&self, alpha: f32) -> Self {
+        alpha
+    }
+
+    fn alpha(&self) -> f32 {
+        *self
+    }
+
+    fn set_alpha(&mut self, alpha: f32) {
+        *self = alpha;
+    }
+}
+
 /// Trait for manipulating the hue of a color.
 pub trait Hue: Sized {
     /// Return a new version of this color with the hue channel set to the given value.