From 22bd7c2252e9cb4481ff5ff02906f1d44779e8f5 Mon Sep 17 00:00:00 2001
From: Zhe Fang <founchoo@outlook.com>
Date: Sun, 30 Nov 2025 20:15:43 -0500
Subject: [PATCH] chores: add comments

---
 .../BetterLyrics.WinUI3/Renderer/PlayingLineRenderer.cs   | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Renderer/PlayingLineRenderer.cs b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Renderer/PlayingLineRenderer.cs
index 1638147..96b6ebd 100644
--- a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Renderer/PlayingLineRenderer.cs
+++ b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Renderer/PlayingLineRenderer.cs
@@ -230,12 +230,18 @@ namespace BetterLyrics.WinUI3.Renderer
             if (settings.IsLyricsFloatAnimationEnabled)
             {
                 double targetFloatOffset = sourceCharRect.Height * 0.1;
-                if (charIndex < curCharIndexInt) floatOffset = 0;
+                // 已经浮完了的
+                if (charIndex < curCharIndexInt)
+                {
+                    floatOffset = 0;
+                }
+                // 正在浮的
                 else if (charIndex == curCharIndexInt)
                 {
                     var p = exactProgressIndex - curCharIndexInt;
                     floatOffset = -targetFloatOffset + p * targetFloatOffset;
                 }
+                // 还没浮的
                 else
                 {
                     floatOffset = -targetFloatOffset;