InputJoystick

Wolfram Kernel

Execution environment

Notebook`Kernel`Inputs`

Context

wljs-inputs

Package

InputJoystick[] _EventObject

creates and instance of 2D manipulator (virtual joystick)

Event generation

It fires an event with {x_, y_} coordinates of a joystick in a range of [-1,1] once it has been dragged by a user.

Helpers

There is helper function to integrate the position, that joystick controls velocity instead of absolute position

InputJoystick`IntegrationHelper[initialValue_:{0,0}, delta_:0.01][callback_Function] _Function

for example

cell 1

pt = {0.,0.};

handler = InputJoystick`IntegrationHelper[][Function[xy, 
  pt = xy
]];

EventHandler[InputJoystick[], handler]

cell 2

Graphics[
  {Red, PointSize[0.05], Point[pt // Offload]}
  , PlotRange->{{-1,1}, {-1,1}}
]

Options

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