# README

gods4

A userspace cross-platform driver for Sony DualShock 4 controller over HID. Works for Bluetooth and USB connections.

Features

Buttons: x, circle, square, triangle, share, options, touchpad
D-pad: up, down, left, right (also intermediate positions)
Analog sticks: left, right
Analog triggers: L2, R2
Touchpad: 2 touches and button
Battery
Gyroscope (absolute orientation)
Accelerometer (relative movement)
Activating the motors (rumble)
Setting the LED color

Install

Use go get to install the latest version of the library:

go get github.com/kpeu3i/[email protected]

Next, include ds4 in your application:

import "github.com/kpeu3i/gods4"

Usage

First, connect the controller to your computer using a micro-USB cable or Bluetooth.

package main

import (
	"log"
	"os"
	"os/signal"
	"syscall"

	"github.com/kpeu3i/gods4"
	"github.com/kpeu3i/gods4/led"
	"github.com/kpeu3i/gods4/rumble"
)

func main() {
	// Find all controllers connected to your machine via USB or Bluetooth
	controllers := gods4.Find()
	if len(controllers) == 0 {
		panic("No connected DS4 controllers found")
	}

	// Select first controller from the list
	controller := controllers[0]

	// Connect to the controller
	err := controller.Connect()
	if err != nil {
		panic(err)
	}

	log.Printf("* Controller #1 | %-10s | name: %s, connection: %s\n", "Connect", controller, controller.ConnectionType())

	// Disconnect controller when a program is terminated
	signals := make(chan os.Signal, 1)
	signal.Notify(signals, syscall.SIGINT, syscall.SIGTERM)
	go func() {
		<-signals
		err := controller.Disconnect()
		if err != nil {
			panic(err)
		}
		log.Printf("* Controller #1 | %-10s | bye!\n", "Disconnect")
	}()

	// Register callback for "BatteryUpdate" event
	controller.On(gods4.EventBatteryUpdate, func(data interface{}) error {
		battery := data.(gods4.Battery)
		log.Printf("* Controller #1 | %-10s | capacity: %v%%, charging: %v, cable: %v\n",
			"Battery",
			battery.Capacity,
			battery.IsCharging,
			battery.IsCableConnected,
		)

		return nil
	})

	// Register callback for "CrossPress" event
	controller.On(gods4.EventCrossPress, func(data interface{}) error {
		log.Printf("* Controller #1 | %-10s | state: press\n", "Cross")

		return nil
	})

	// Register callback for "CrossRelease" event
	controller.On(gods4.EventCrossRelease, func(data interface{}) error {
		log.Printf("* Controller #1 | %-10s | state: release\n", "Cross")

		return nil
	})

	// Register callback for "RightStickMove" event
	controller.On(gods4.EventRightStickMove, func(data interface{}) error {
		stick := data.(gods4.Stick)
		log.Printf("* Controller #1 | %-10s | x: %v, y: %v\n", "RightStick", stick.X, stick.Y)

		return nil
	})

	// Enable left and right rumble motors
	err = controller.Rumble(rumble.Both())
	if err != nil {
		panic(err)
	}

	// Enable LED (yellow) with flash
	err = controller.Led(led.Yellow().Flash(50, 50))
	if err != nil {
		panic(err)
	}

	// Start listening for controller events
	err = controller.Listen()
	if err != nil {
		panic(err)
	}

	// Output:
	// 2019/02/16 17:00:23 * Controller #1 | Connect    | name: Wireless Controller (vendor: 1356, product: 2508), connection: BT
	// 2019/02/16 17:00:23 * Controller #1 | Battery    | capacity: 77%, charging: false, cable: false
	// 2019/02/16 17:00:34 * Controller #1 | Cross      | state: press
	// 2019/02/16 17:00:34 * Controller #1 | Cross      | state: release
	// 2019/02/16 17:00:39 * Controller #1 | RightStick | x: 187, y: 98
	// 2019/02/16 17:00:39 * Controller #1 | RightStick | x: 191, y: 94
	// 2019/02/16 17:00:39 * Controller #1 | RightStick | x: 196, y: 93
	// 2019/02/16 17:00:39 * Controller #1 | RightStick | x: 212, y: 88
	// 2019/02/16 17:00:39 * Controller #1 | RightStick | x: 228, y: 79
	// 2019/02/16 17:02:52 * Controller #1 | Disconnect | bye!
}

Events

Events on which you can subscribe are listed below:

Name	Data
EventCrossPress	nil
EventCrossRelease	nil
EventCirclePress	nil
EventCircleRelease	nil
EventSquarePress	nil
EventSquareRelease	nil
EventTrianglePress	nil
EventTriangleRelease	nil
EventL1Press	nil
EventL1Release	nil
EventL2Press	byte
EventL2Release	byte
EventL3Press	nil
EventL3Release	nil
EventR1Press	nil
EventR1Release	nil
EventR2Press	byte
EventR2Release	byte
EventR3Press	nil
EventR3Release	nil
EventDPadUpPress	nil
EventDPadUpRelease	nil
EventDPadDownPress	nil
EventDPadDownRelease	nil
EventDPadLeftPress	nil
EventDPadLeftRelease	nil
EventDPadRightPress	nil
EventDPadRightRelease	nil
EventSharePress	nil
EventShareRelease	nil
EventOptionsPress	nil
EventOptionsRelease	nil
EventTouchpadSwipe	Touchpad
EventTouchpadPress	Touchpad
EventTouchpadRelease	Touchpad
EventPSPress	nil
EventPSRelease	nil
EventLeftStickMove	Stick
EventRightStickMove	Stick
EventAccelerometerUpdate	Accelerometer
EventGyroscopeUpdate	Gyroscope
EventBatteryUpdate	Battery