From 9c4cb28805edf550fac9d8f4f87e568bbbf9a154 Mon Sep 17 00:00:00 2001
From: rdb <git@rdb.name>
Date: Tue, 11 Aug 2020 09:38:41 +0200
Subject: [PATCH] mathutil: error instead of infinite loop if triangulation
 failed

Fixes #985
---
 panda/src/mathutil/triangulator.cxx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/panda/src/mathutil/triangulator.cxx b/panda/src/mathutil/triangulator.cxx
index da29f022be..f179b24e83 100644
--- a/panda/src/mathutil/triangulator.cxx
+++ b/panda/src/mathutil/triangulator.cxx
@@ -150,7 +150,11 @@ triangulate() {
   }
   */
 
+  int attempts = 0;
+
   while (construct_trapezoids(num_segments) != 0) {
+    nassertv_always(attempts++ < 100);
+
     // If there's an error, re-shuffle the index and try again.
     Randomizer randomizer;
     for (i = 0; i < num_segments; ++i) {