EV3: faulty simulation with non-standard robot configuration

[charlie-chaperon]

Describe the bug When using a custom robot configuration by reversing left and right for motors B and C, the simulation does not work properly. When simulating a line follower with a standard configuration, it works well. Reversing Left and right makes the simulated robot drive in a straight line and not reacting to any input from the light sensor. However the same program just works as expected when uploaded to a EV3.

standard robot configuration

custom robot configuration with left and right reversed

Test program used: line following.

Steps to reproduce the behavior:

1. write a simple line follow program for the EV3 c4ev3 (see picture)

2. use standard robot configuration

3. simulate program - everything should work

4. switch sides of the motors from left/right (see picture)

5. simulate the new program - the robot drives in a straight line and does not react to sensor input

Expected behavior The custom configuration should work like the standard configuration, just with the robot turning to the right instead of the left when not finding a line.

Device information

• tested on several Laptops / different OS (Windows10, several debian-based Linux distributions)
• tested Browsers: recent Chrome, Firefox, Brave - I tested various Browser versions of these, the problem appeared on everyone of them since I tested
• Open Roberta versions: 5.2.4 to 5.2.14 - first notice of the issue: august 2023

Additional context The programs do work on a real EV3, just the simulation seems bugged.

[bjost2s]

Thanks for this issue, your enhancement makes sense, we will considerate this in a future version. Currently there is no time to solve it soon.

[bjost2s]

Solution should solve #1507, too