From f83233e8821afff944303830a127df2c86c552ca Mon Sep 17 00:00:00 2001
From: Alezito2008 <alejandro.kretzig@gmail.com>
Date: Mon, 16 Mar 2026 22:03:47 -0300
Subject: [PATCH] Add keyboard support for debug fly toggle (Up Arrow)

---
 Minecraft.Client/Minecraft.cpp                  | 5 +++++
 Minecraft.Client/Windows64/KeyboardMouseInput.h | 1 +
 README.md                                       | 1 +
 3 files changed, 7 insertions(+)

diff --git a/Minecraft.Client/Minecraft.cpp b/Minecraft.Client/Minecraft.cpp
index 11fd81a0d0..983e0d61a2 100644
--- a/Minecraft.Client/Minecraft.cpp
+++ b/Minecraft.Client/Minecraft.cpp
@@ -1549,6 +1549,11 @@ void Minecraft::run_middle()
 							localplayers[i]->ullButtonsPressed|=1LL<<MINECRAFT_ACTION_RENDER_DEBUG;
 						}
 
+						if (g_KBMInput.IsKeyPressed(KeyboardMouseInput::KEY_FLY_TOGGLE) && app.DebugSettingsOn() && app.GetUseDPadForDebug())
+						{
+							localplayers[i]->ullButtonsPressed|=1LL<<MINECRAFT_ACTION_FLY_TOGGLE;
+						}
+
 						// In flying mode, Shift held = sneak/descend
 						if(g_KBMInput.IsKBMActive() && g_KBMInput.IsKeyDown(KeyboardMouseInput::KEY_SNEAK))
 						{
diff --git a/Minecraft.Client/Windows64/KeyboardMouseInput.h b/Minecraft.Client/Windows64/KeyboardMouseInput.h
index 2079a72a15..23cf5d132c 100644
--- a/Minecraft.Client/Windows64/KeyboardMouseInput.h
+++ b/Minecraft.Client/Windows64/KeyboardMouseInput.h
@@ -36,6 +36,7 @@ class KeyboardMouseInput
 	static const int KEY_DEBUG_CONSOLE = VK_F6;
 	static const int KEY_HOST_SETTINGS = VK_F8;
 	static const int KEY_FULLSCREEN = VK_F11;
+	static const int KEY_FLY_TOGGLE = VK_UP;
 
 	// todo: implement and shi
 	static const int KEY_SCREENSHOT = VK_F2;
diff --git a/README.md b/README.md
index 707b1e6d7c..4bb68e0b55 100644
--- a/README.md
+++ b/README.md
@@ -61,6 +61,7 @@ If you're looking for Dedicated Server software, download its [Nightly Build her
 - **Toggle Debug Info**: `F3`
 - **Open Debug Overlay**: `F4`
 - **Toggle Debug Console**: `F6`
+- **Toggle Debug Fly**: `Up Arrow`
 
 
 ## Client Launch Arguments