• Begin handler
• Tracking handler
• Stop handler
• Set/change joystick diameter
• Set/change stick && substrate colors
• Set/change stick && substrate images

1. Just drop the AnalogJoystick.swift file into your project.
2. That's it!

init with 100px diameter.Colors & images you can change later

let joystick = AnalogJoystick(diameter: 100)
// or
let joystick = 🕹(diameter: 100)

Substrate has 100px diameter, stick has 50px diameter

let joystick = AnalogJoystick(diameters: (100, 50)) 

init with 100px diameter.Substrate has blue color, stick has yellow color

let joystick = AnalogJoystick(diameter: 100, colors: (UIColor.blue(), UIColor.yellow()))

init with 100px diameter.Substrate has "substrate" image, stick has "stick" image

let joystick = AnalogJoystick(diameter: 100, images: (UIImage(named: "substrate"), UIImage(named: "stick")))

init with 100px diameter.Substrate has blue color && "substrate" image, stick has yellow color && "stick" image

let joystick = AnalogJoystick(diameter: 100, colors: (UIColor.blue(), UIColor.yellow()), images: (UIImage(named: "substrate"), UIImage(named: "stick")))

init with substrate && stick diameters.Substrate has blue color && "substrate" image, stick has yellow color && "stick" image

let joystick = AnalogJoystick(diameters: (100, 50), colors: (UIColor.blue(), UIColor.yellow()), images: (UIImage(named: "substrate"), UIImage(named: "stick")))

init with substrate && stick diameters.Substrate has blue color, stick has yellow color

let joystick = AnalogJoystick(diameters: (100, 50), colors: (UIColor.blue(), UIColor.yellow()))

init with substrate && stick diameters.Substrate has "substrate" image, stick has "stick" image

let joystick = AnalogJoystick(diameters: (100, 50), images: (UIImage(named: "substrate"), UIImage(named: "stick")))

init(substrate: AnalogJoystickSubstrate, stick: AnalogJoystickStick)

WHERE:

• substrate - substrate of joystick (AnalogJoystickSubstrate:AnalogJoystickComponent)
• stick - stick of joystick (AnalogJoystickStick:AnalogJoystickComponent)

convenience init(diameters: (substrate: CGFloat, stick: CGFloat?), colors: (substrate: UIColor?, stick: UIColor?)? = nil, images: (substrate: UIImage?, stick: UIImage?)? = nil)
convenience init(diameter: CGFloat, colors: (substrate: UIColor?, stick: UIColor?)? = nil, images: (substrate: UIImage?, stick: UIImage?)? = nil)

typealias AnalogJoystick = 🕹

let joystick = 🕹(diameter: 110) // it's equal let joystick = AnalogJoystick(diameter: 110)

• var beginHandler: (() -> Void)? // before move
• var trackingHandler: ((AnalogJoystickData) -> ())? // when move
• var stopHandler: (() -> Void)? // after move

• var stickColor: UIColor (get/set)
• var substrateColor: UIColor (get/set)
• var stickImage: UIImage? (get/set)
• var substrateImage: UIImage? (get/set)
• var diameter: CGFloat (get/set)

let joystick = AnalogJoystick(diameter: 100) // you can set images/color later

or with images

let joystick = AnalogJoystick(diameter: 100, images: (UIImage(named: "substrate"), UIImage(named: "stick")))

joystick.beginHandler = { [unowned self] in
  // Something...
}

joystick.trackingHandler = { [unowned self] data in
  // Something...
  // data contains angular && velocity (data.angular, data.velocity)
}

joystick.stopHandler = { [unowned self] in
  // Something...
}

  joystick.diameter = 100 // set new diameter

  joystick.stick.color = UIColor.yellow() // set yellow color to stick node
  joystick.substrate.color = UIColor.red() // set red color to substrate node

  joystick.stick.image = UIImage(imageNamed: "yourStickImage") // set image to stick node
  joystick.substrate.image = UIImage(imageNamed: "yourSubstrateImage") // set image to substrate node

The MIT License (MIT)

Copyright (c) 2015...2018 Dmitriy Mitrophanskiy

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.