From 269b92d93c5429dcd6becb132ee3ffcb3469637e Mon Sep 17 00:00:00 2001
From: Shane Davis <shane.davis1231@gmail.com>
Date: Sun, 22 May 2022 17:19:25 -0700
Subject: [PATCH] fix crash when no HMD detected

---
 L4D2VR/hooks.cpp | 9 ++++++---
 L4D2VR/vr.cpp    | 2 ++
 L4D2VR/vr.h      | 1 +
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/L4D2VR/hooks.cpp b/L4D2VR/hooks.cpp
index 3a1e957..5b96b11 100644
--- a/L4D2VR/hooks.cpp
+++ b/L4D2VR/hooks.cpp
@@ -210,9 +210,12 @@ HRESULT __stdcall Hooks::dPresent(IDirect3DDevice9 *pDevice, const RECT *pSource
 		iD9on12->ReturnUnderlyingResource(mVR->d9RightEyeTexture, 0, nullptr, nullptr);
 	}
 
-	mVR->UpdatePosesAndActions();
-	mVR->UpdateTracking(mVR->setupOrigin);
-
+	if (mVR->isInitialized)
+	{
+		mVR->UpdatePosesAndActions();
+		mVR->UpdateTracking(mVR->setupOrigin);
+	}
+	
 	return hkPresent.fOriginal(pDevice, pSourceRect, pDestRect, hDestWindowOverride, pDirtyRegion);
 }
 
diff --git a/L4D2VR/vr.cpp b/L4D2VR/vr.cpp
index ba8bfa4..929925a 100644
--- a/L4D2VR/vr.cpp
+++ b/L4D2VR/vr.cpp
@@ -72,6 +72,8 @@ VR::VR(Game *game) {
 
     std::thread configParser(&VR::WaitForConfigUpdate, this);
     configParser.detach();
+
+    isInitialized = true;
 }
 
 
diff --git a/L4D2VR/vr.h b/L4D2VR/vr.h
index 72924fa..145fcc4 100644
--- a/L4D2VR/vr.h
+++ b/L4D2VR/vr.h
@@ -101,6 +101,7 @@ class VR
 	IDirect3DTexture9 *d9RightEyeTexture;
 
 	bool isVREnabled;
+	bool isInitialized;
 
 	bool mPressedLeftStick = false;
 	bool mChangedItem = false;