233 - add dead zone to user settings

[surreal6]

I added x and y deadzone values and applied in movement direct

also added this attributes to user preferences, and added to the main level UI

I believe it can be improved as now it is checking always to react to the virtual selector

I will add some comments in the code to ask a few questions

[BastiaanOlij]

This looks good.

Note that depending on whether we merge this first, or #475, we could get a nasty merge conflict as I added margin containers to the UI. It may work though..

[BastiaanOlij]

is it correct our default here is 0.2?

[surreal6]

when testing, I found useful adding a bit more deadzone in the x axis to avoid accidental rotation when moving forward...

the original issue suggested a value of 0.2. I'm not sure which value would be more convenient by default

[BastiaanOlij]

Owh, yeah that makes sense :)

[Malcolmnixon]

Unfortunately I just found this PR has a bug in movement_direct.gd

In the original code:

• Y (forwards backwards) was always applied
• X (strafing) was only performed if strafing was enabled.

In the new code:

• X (strafing) is always applied
• Y (forwards backwards) is only performed if strafing is enabled.

I'll file a bug shortly.