Flaoting-point precision issues of sensor reader

[MingfeiCheng]

Hi,

I noticed that floating-point precision sometimes affects sensor readings. I am using CARLA 0.9.10.1. Specifically, in the sensor.speedometer configuration

leaderboard/leaderboard/autoagents/agent_wrapper.py

Line 151 in a87a341

elif type_ == 'sensor.speedometer':

I encountered an issue when setting the simulation FPS to 25 Hz. The time difference calculated by GameTime.get_time() in the following codes

leaderboard/leaderboard/envs/sensor_interface.py

Line 70 in a87a341

if current_time - latest_time > (1 / self._reading_frequency) \

is:

current_time - latest_time = 0.03999999910593033

However, the expected reading interval is:

1 / self._reading_frequency = 0.04

This slight mismatch (due to > comparison) results in a SensorReceivedNoData error on the speedometer sensor.

Have you encountered this issue before? Is this considered expected behavior due to floating-point precision limits?

Thank you!