Joystick macros

[sezanzeb]

Closes #875

Adds left_joystick, right_joystick, left_trigger, right_trigger, dpad_1, dpad_2, dpad_3 macros.

The mapping target needs to be "gamepad".

Mapping two keys to one of these will make them add their values up. Pressing and holding both left_joystick(1, 0) and left_joystick(-1, 0) together results in a neutral joystick position. Releasing one of them moves the joystick. Releasing both makes the joystick neutral again.

Examples:

left_joystick(1, 1)  # moves the joystick to the top right
right_joystick(-1, 0)  # moves the second joystick to the left
left_trigger(0.5)  # presses the left trigger halfway
# (similar to mouse_xy)

TODO:

• tests
• beta testers
• docs

Open questions:

left_joystick() or joystick()?
dpad_1() or dpad()?

or joystick_1() and joystick_2()

Are these macros ok or does one of the alternatives look significantly better?

gamepad("left_joystick", x, y)
gamepad("right_joystick", x, y)
gamepad("left_trigger", z)
gamepad("dpad1", x, y)

left_joystick("up", 1)
dpad("right", 1)
dpad("down", 1)
# (Similar to the old mouse macro)

I think they would be harder to use