From d533cf554afc07a7d47cf7ee76b8bd9cd8d24496 Mon Sep 17 00:00:00 2001
From: "Mr. Capybara" <ruanlucaspgbr@outlook.com>
Date: Tue, 14 Nov 2023 14:47:35 -0400
Subject: [PATCH] Avoid crash when try build navmesh with null scene

---
 Source/Engine/Navigation/NavMeshBuilder.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Source/Engine/Navigation/NavMeshBuilder.cpp b/Source/Engine/Navigation/NavMeshBuilder.cpp
index b0959cb34..894dc1e52 100644
--- a/Source/Engine/Navigation/NavMeshBuilder.cpp
+++ b/Source/Engine/Navigation/NavMeshBuilder.cpp
@@ -1067,6 +1067,12 @@ void NavMeshBuilder::Update()
 
 void NavMeshBuilder::Build(Scene* scene, float timeoutMs)
 {
+    if (!scene)
+    {
+        LOG(Warning, "Could not generate navmesh without scene.");
+        return;
+    }
+
     // Early out if scene is not using navigation
     if (scene->Navigation.Volumes.IsEmpty())
     {
@@ -1098,6 +1104,17 @@ void NavMeshBuilder::Build(Scene* scene, float timeoutMs)
 
 void NavMeshBuilder::Build(Scene* scene, const BoundingBox& dirtyBounds, float timeoutMs)
 {
+    if (!scene)
+    {
+        LOG(Warning, "Could not generate navmesh without scene.");
+        return;    
+    }
+    if (!&dirtyBounds)
+    {
+        LOG(Warning, "Could not generate navmesh without dirty bounds.");
+        return;
+    }
+
     // Early out if scene is not using navigation
     if (scene->Navigation.Volumes.IsEmpty())
     {