From 158c7c72c741ad58f22dfdcade74d4e893cd33c5 Mon Sep 17 00:00:00 2001
From: Crazy-P
Date: Thu, 12 Apr 2018 18:15:34 +0800
Subject: Resolves crash on shape2D culling for empty Concave shapes

Fixes https://github.com/godotengine/godot/issues/17789
---
 servers/physics_2d/shape_2d_sw.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'servers/physics_2d/shape_2d_sw.cpp')

diff --git a/servers/physics_2d/shape_2d_sw.cpp b/servers/physics_2d/shape_2d_sw.cpp
index 433942708..2b0eab599 100644
--- a/servers/physics_2d/shape_2d_sw.cpp
+++ b/servers/physics_2d/shape_2d_sw.cpp
@@ -1011,6 +1011,10 @@ void ConcavePolygonShape2DSW::cull(const Rect2 &p_local_aabb, Callback p_callbac
 		stack[i]=0;
 	*/
 
+	if (segments.size() == 0 || points.size() == 0 || bvh.size() == 0) {
+		return;
+	}
+
 	int level = 0;
 
 	const Segment *segmentptr = &segments[0];
-- 
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