From 8b9ed733dd68861bc052429b0d5a71bc2315ee80 Mon Sep 17 00:00:00 2001
From: Uwe Oestermeier <u.oestermeier@iwm-tuebingen.de>
Date: Tue, 18 Jun 2019 16:07:07 +0200
Subject: [PATCH] Added missing variables.

---
 lib/pixi/deepzoom/tile.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/pixi/deepzoom/tile.js b/lib/pixi/deepzoom/tile.js
index eac6958..21186bb 100644
--- a/lib/pixi/deepzoom/tile.js
+++ b/lib/pixi/deepzoom/tile.js
@@ -6,6 +6,8 @@ const registeredTiles = new Map()
 let keepTextures = 0
 const keptTextures = []
 const lateTextures = new Map()
+let lastSweepTime = 0
+let sweepInterval = 2000.0
 
 /** The current Tile implementation simply uses PIXI.Sprites.
  *