From 8865194e47b0c40392e1b40f158bd1bfeb7e6134 Mon Sep 17 00:00:00 2001
From: Nikita Edel <nikitagussew@gmail.com>
Date: Tue, 10 Mar 2026 21:59:51 +0100
Subject: [PATCH] uninitialized data

---
 Minecraft.Client/Platform/Common/UI/UIGroup.cpp | 5 +++--
 debug.sh                                        | 7 +++++++
 run.sh                                          | 7 +++++++
 3 files changed, 17 insertions(+), 2 deletions(-)
 create mode 100755 debug.sh
 create mode 100755 run.sh

diff --git a/Minecraft.Client/Platform/Common/UI/UIGroup.cpp b/Minecraft.Client/Platform/Common/UI/UIGroup.cpp
index fbf76d20e..996d1f94d 100644
--- a/Minecraft.Client/Platform/Common/UI/UIGroup.cpp
+++ b/Minecraft.Client/Platform/Common/UI/UIGroup.cpp
@@ -10,6 +10,9 @@ UIGroup::UIGroup(EUIGroup group, int iPad)
 	m_bContainerMenuDisplayed = false;
 	m_bIgnoreAutosaveMenuDisplayed = false;
 	m_bIgnorePlayerJoinMenuDisplayed = false;
+	// 4jcraft, moved this to the top
+	// initialized memory was read.
+	m_viewportType = C4JRender::VIEWPORT_TYPE_FULLSCREEN;
 
 	m_updateFocusStateCountdown = 0;
 
@@ -39,8 +42,6 @@ UIGroup::UIGroup(EUIGroup group, int iPad)
 		m_pressStartToPlay = (UIComponent_PressStartToPlay *)m_layers[(int)eUILayer_Tooltips]->addComponent(0, eUIComponent_PressStartToPlay);
 	}
 
-	m_viewportType = C4JRender::VIEWPORT_TYPE_FULLSCREEN;
-
 	// 4J Stu - Pre-allocate this for cached rendering in scenes. It's horribly slow to do dynamically, but we should only need one
 	// per group as we will only be displaying one of these types of scenes at a time
 	m_commandBufferList = MemoryTracker::genLists(1);
diff --git a/debug.sh b/debug.sh
new file mode 100755
index 000000000..e2d2bc292
--- /dev/null
+++ b/debug.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+meson setup build -Db_sanitize=address,leak,undefined -Dcpp_args=-fno-sanitize-recover=all -Dc_args=-fno-sanitize-recover=all && \
+meson compile -C build && \
+cd build/Minecraft.Client/ && \
+gdb -tui ./Minecraft.Client && \
+cd ../..
diff --git a/run.sh b/run.sh
new file mode 100755
index 000000000..bd0a0c27b
--- /dev/null
+++ b/run.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+meson setup build -Db_sanitize=address,leak,undefined -Dcpp_args=-fno-sanitize-recover=all -Dc_args=-fno-sanitize-recover=all && \
+meson compile -C build && \
+cd build/Minecraft.Client/ && \
+UBSAN_OPTIONS=print_stacktrace=1 ./Minecraft.Client && \
+cd ../..