Constant speed in the X axis of a body

[Z_ReC]

First:
Thanks to all who helped!

Second:

switch from the love.physics, it is impossible to get a constant velocity in love.physics without screwing something up

Not really, he just needs to do a few things every frame:

• get current velocity vector (:getLinearVelocity())
• normalize and scale it by the target velocity

Now you can either just set it directly (setLinearVelocity()), which might look weird, or instead apply a force:

• subtract the actual velocity from the target velocity vector
• apply a force proportional to that difference

Try to duplicate your example, but I could not, you could guide me more? Sorry!

[s-ol]

If you don't want to mess with the velocity itself you basically read the current velocity, and if it's too slow, apply a force to the right, if its too fast, apply a force to the left to slow it down.