From f1f7d978ec92be92183755cd9a1fa646e1d3e1b3 Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Fri, 30 Mar 2018 16:28:59 +0900
Subject: [PATCH] Add some comments

---
 osu.Game/Screens/Edit/Screens/Compose/Layers/Selection.cs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/osu.Game/Screens/Edit/Screens/Compose/Layers/Selection.cs b/osu.Game/Screens/Edit/Screens/Compose/Layers/Selection.cs
index 4ff1284f8a..427acbef5a 100644
--- a/osu.Game/Screens/Edit/Screens/Compose/Layers/Selection.cs
+++ b/osu.Game/Screens/Edit/Screens/Compose/Layers/Selection.cs
@@ -68,6 +68,7 @@ namespace osu.Game.Screens.Edit.Screens.Compose.Layers
 
         protected override bool OnMouseDown(InputState state, MouseDownEventArgs args)
         {
+            // If masks are overlapping, make sure we don't change the selection if the overlapped portion is pressed
             if (selectedMasks.Any(m => m.ReceiveMouseInputAt(state.Mouse.NativeState.Position)))
                 return true;
 
@@ -80,6 +81,7 @@ namespace osu.Game.Screens.Edit.Screens.Compose.Layers
 
         protected override bool OnClick(InputState state)
         {
+            // If there's only mask, this isn't going to change anything, so we can save on doing some processing here
             if (selectedMasks.Count == 1)
                 return true;