From c132b13f55d878a67c2ac24453d32451c117d908 Mon Sep 17 00:00:00 2001
From: Javier Sancho <jsf@jsancho.org>
Date: Mon, 14 Oct 2019 11:56:42 +0200
Subject: [PATCH] Bug when coordinates are NULL

---
 src/ISceneManager.cpp | 40 +++++++++++++++++++++++++---------------
 1 file changed, 25 insertions(+), 15 deletions(-)

diff --git a/src/ISceneManager.cpp b/src/ISceneManager.cpp
index 4222505..e88bd00 100644
--- a/src/ISceneManager.cpp
+++ b/src/ISceneManager.cpp
@@ -33,15 +33,21 @@ extern "C" {
                                                    irr_core_vector3df* scale,
                                                    int alsoAddIfMeshPointerZero)
   {
-    const irr::core::vector3df& iPosition = irr::core::vector3df(position->x,
-                                                                 position->y,
-                                                                 position->z);
-    const irr::core::vector3df& iRotation = irr::core::vector3df(rotation->x,
-                                                                 rotation->y,
-                                                                 rotation->z);
-    const irr::core::vector3df& iScale = irr::core::vector3df(scale->x,
-                                                              scale->y,
-                                                              scale->z);
+    const irr::core::vector3df iPosition =
+      position ?
+      irr::core::vector3df(position->x, position->y, position->z) :
+      irr::core::vector3df(0, 0, 0);
+
+    const irr::core::vector3df iRotation =
+      rotation ?
+      irr::core::vector3df(rotation->x, rotation->y, rotation->z) :
+      irr::core::vector3df(0, 0, 0);
+
+    const irr::core::vector3df& iScale =
+      scale ?
+      irr::core::vector3df(scale->x, scale->y, scale->z) :
+      irr::core::vector3df(1, 1, 1);
+
     return (irr_scene_IAnimatedMeshSceneNode*)
       ((irr::scene::ISceneManager*)smgr)->addAnimatedMeshSceneNode((irr::scene::IAnimatedMesh*)mesh,
                                                                    (irr::scene::ISceneNode*)parent,
@@ -60,12 +66,16 @@ extern "C" {
                                              int id,
                                              int makeActive)
   {
-    const irr::core::vector3df& iPosition = irr::core::vector3df(position->x,
-                                                                 position->y,
-                                                                 position->z);
-    const irr::core::vector3df& iLookat = irr::core::vector3df(lookat->x,
-                                                               lookat->y,
-                                                               lookat->z);
+    const irr::core::vector3df& iPosition =
+      position ?
+      irr::core::vector3df(position->x, position->y, position->z) :
+      irr::core::vector3df(0, 0, 0);
+
+    const irr::core::vector3df& iLookat =
+      lookat ?
+      irr::core::vector3df(lookat->x, lookat->y, lookat->z) :
+      irr::core::vector3df(0, 0, 100);
+
     return (irr_scene_ICameraSceneNode*)
       ((irr::scene::ISceneManager*)smgr)->addCameraSceneNode((irr::scene::ISceneNode*)parent,
                                                              iPosition,
-- 
2.39.5