Typo HelicopterHover.py

[Clement Gehring]

There seems to be an error in the default coefficients (line 88) in the helicopter hovering domain.

u_coeffs = np.array([-33.04, -33.32, 70.54, -42.15])

If you check other implementations (including the one this implementation is based off), the first coefficient is non-negative (i.e., u_coeffs[0] = 33.04). Is there a reason why this was changed or is it a typo?

[[e-mail]]

Thanks for spotting the typo, Clement! It is indeed inconsistent to the original implementation. However, as the actions are symmetric (there is always a negative action available for the agent to take), the sign flip should not affect the domain itself. Nevertheless, I will change the sign to make it consistent with other implementations. :-)

[[e-mail]]

fixes issue #47, thanks Clement!

→ <<cset 171b46b905e0>>