From ace38942ba8815388353ddeb5e4f18a5f44bef61 Mon Sep 17 00:00:00 2001
From: Florin Pop <info@florinpop.com>
Date: Tue, 2 Jul 2024 08:59:47 +0200
Subject: [PATCH] Fix memory leak in waterworld_v4 by clearing old handlers
 before adding new ones (#1218)

---
 pettingzoo/sisl/waterworld/waterworld_base.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pettingzoo/sisl/waterworld/waterworld_base.py b/pettingzoo/sisl/waterworld/waterworld_base.py
index b6705b76b..7c82da4e4 100644
--- a/pettingzoo/sisl/waterworld/waterworld_base.py
+++ b/pettingzoo/sisl/waterworld/waterworld_base.py
@@ -313,6 +313,8 @@ def draw(self):
 
     def add_handlers(self):
         # Collision handlers for pursuers v.s. evaders & poisons
+        self.handlers = []
+
         for pursuer in self.pursuers:
             for obj in self.evaders:
                 self.handlers.append(