New API method does nothing

[PeterParkerLogic]

Is there any method to let drone can fly forward ,backward, left turn and right turn in unreal engine by using python ?
I want to let the drone fly forward to the direction what the center camera see. Not fly with world (NED) axis. I also try to use moveByVelocityBodyFrameAsync(), but the drone in unreal engine does not do anything by using this api.

thank you in advance.

[ahmed-elsaharti]

Hi @PeterParkerLogic, you're right, the API that does what you're trying to do should be the moveByVelocityBodyFrameAsync API. When you try to use it, what are the input arguments are you passing to the moveByVelocityBodyFrameAsync function? Also, which version of Airsim are you testing this with (ie: is it a clone of the latest repo or is it one of the precompiled environments in the releases) ?

[ahmed-elsaharti]

Hi @PeterParkerLogic , I've tested your code and it works perfectly on my machine (although I had to get rid of the imutils and tty importation because I don't have those modules installed).
Just to verify, where is your python script located in relation to the repo's directory? Also, does the execution of the python script return any errors?

[PeterParkerLogic]

My program is located in Airsim/PythonClient/multirotors. There was no error when I executed this code. Maybe I should reload airsim to unreal engine project? Because I only rebuilded latest airsim , I did not change anything in my unreal project.

[jonyMarino]

Hi! Yes. You can copy the scripts from the Blocks project and run update_from_git. This is necessary to run a new API function.

[ahmed-elsaharti]

@PeterParkerLogic yup as @jonyMarino mentioned, since you seem to be using a custom environment, you'll need to rebuild the repo and copy the plugin over again like shown here. This updates AirSim's files within your UE project to reflect the addition of the new API (this is assuming your current environment has been built a while ago before the addition of that API)

[PeterParkerLogic]

Thank you very much. It works for me.

[jonyMarino]

PeterParkerLogic yup as jonyMarino mentioned, since you seem to be using a custom environment, you'll need to rebuild the repo and copy the plugin over again like shown here. This updates AirSim's files within your UE project to reflect the addition of the new API (this is assuming your current environment has been built a while ago before the addition of that API)

[jonyMarino]

Thanks @ahmed-elsaharti !