From 10f411b47bd46fc28f780be9f70c20228ef4428c Mon Sep 17 00:00:00 2001
From: Juan Linietsky <reduzio@gmail.com>
Date: Sun, 26 Jun 2016 16:51:13 -0300
Subject: [PATCH] Avoid mirroring to go negative to fix crash, closes #4036

---
 scene/2d/parallax_layer.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/scene/2d/parallax_layer.cpp b/scene/2d/parallax_layer.cpp
index ec7189ff93c..e9378b1d02f 100644
--- a/scene/2d/parallax_layer.cpp
+++ b/scene/2d/parallax_layer.cpp
@@ -85,6 +85,11 @@ void ParallaxLayer::_update_mirroring() {
 void ParallaxLayer::set_mirroring(const Size2& p_mirroring) {
 
 	mirroring=p_mirroring;
+	if (mirroring.x<0)
+		mirroring.x=0;
+	if (mirroring.y<0)
+		mirroring.y=0;
+
 	_update_mirroring();
 
 }