From 50db44494716f9bd81fd5c1dfbbab660120a0a62 Mon Sep 17 00:00:00 2001
From: Ahmad Amine <AhmadAmine998@gmail.com>
Date: Mon, 27 Jan 2025 04:58:54 -0500
Subject: [PATCH] Replace example utils with local frameCounter def

---
 f1tenth_gym/envs/rendering/rendering_pyqt.py | 27 +++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/f1tenth_gym/envs/rendering/rendering_pyqt.py b/f1tenth_gym/envs/rendering/rendering_pyqt.py
index ecd2469e..0aa685fe 100644
--- a/f1tenth_gym/envs/rendering/rendering_pyqt.py
+++ b/f1tenth_gym/envs/rendering/rendering_pyqt.py
@@ -9,7 +9,6 @@
 from PyQt6 import QtWidgets, QtCore
 from PyQt6 import QtGui
 import pyqtgraph as pg
-from pyqtgraph.examples.utils import FrameCounter
 from pyqtgraph.exporters import ImageExporter
 from PIL import ImageColor
 
@@ -24,6 +23,32 @@
 INSTRUCTION_TEXT = "Mouse click (L/M/R): Change POV - 'S' key: On/Off"
 
 
+# Replicated from pyqtgraphs' example utils for ci pipelines to pass
+from time import perf_counter
+class FrameCounter(QtCore.QObject):
+    sigFpsUpdate = QtCore.pyqtSignal(object)
+
+    def __init__(self, interval=1000):
+        super().__init__()
+        self.count = 0
+        self.last_update = 0
+        self.interval = interval
+
+    def update(self):
+        self.count += 1
+
+        if self.last_update == 0:
+            self.last_update = perf_counter()
+            self.startTimer(self.interval)
+
+    def timerEvent(self, evt):
+        now = perf_counter()
+        elapsed = now - self.last_update
+        fps = self.count / elapsed
+        self.last_update = now
+        self.count = 0
+        self.sigFpsUpdate.emit(fps)
+
 class PyQtEnvRenderer(EnvRenderer):
     """
     Renderer of the environment using PyQtGraph.