joystick

Joystick

You can use Gobot with a Dualshock3 game controller, an XBox360 game controller, or any other USB joystick or game controller that is compatible with Simple DirectMedia Layer.

How to Install

This package requires sdl2 to be installed on your system

OSX

To install sdl2 on OSX using Homebrew:

$ brew install sdl2

Ubuntu

$ sudo apt-get install libsdl2-2.0-0

Now you can install the package with

go get -d -u github.com/hybridgroup/gobot/... && go install github.com/hybridgroup/gobot/platforms/joystick

How to Use

Controller configurations are stored in JSON format. Here's an example configuration file for the Dualshock 3 controller

{
    "name": "Sony PLAYSTATION(R)3 Controller",
    "guid": "030000004c0500006802000011010000",
    "axis": [
        {
            "name": "left_x",
            "id": 0
        },
        {
            "name": "left_y",
            "id": 1
        },
        {
            "name": "right_x",
            "id": 2
        },
        {
            "name": "right_y",
            "id": 3
        }
    ],
    "buttons": [
        {
            "name": "square",
            "id": 15
        },
        {
            "name": "triangle",
            "id": 12
        },
        {
            "name": "circle",
            "id": 13
        },
        {
            "name": "x",
            "id": 14
        },
        {
            "name": "up",
            "id": 4
        },
        {
            "name": "down",
            "id": 6
        },
        {
            "name": "left",
            "id": 7
        },
        {
            "name": "right",
            "id": 5
        },
        {
            "name": "left_stick",
            "id": 1
        },
        {
            "name": "right_stick",
            "id": 2
        },
        {
            "name": "l1",
            "id": 10
        },
        {
            "name": "l2",
            "id": 8
        },
        {
            "name": "r1",
            "id": 11
        },
        {
            "name": "r2",
            "id": 9
        },
        {
            "name": "start",
            "id": 3
        },
        {
            "name": "select",
            "id": 0
        },
        {
            "name": "home",
            "id": 16
        }
    ]
}

How to Connect

Plug your USB joystick or game controller into your USB port. If your device is supported by SDL, you are now ready.

Examples

This small program receives joystick and button press events from an PlayStation 3 game controller.

package main

import (
	"fmt"

	"github.com/hybridgroup/gobot"
	"github.com/hybridgroup/gobot/platforms/joystick"
)

func main() {
	gbot := gobot.NewGobot()

	joystickAdaptor := joystick.NewJoystickAdaptor("ps3")
	joystick := joystick.NewJoystickDriver(joystickAdaptor,
		"ps3",
		"./platforms/joystick/configs/dualshock3.json",
	)

	work := func() {
		gobot.On(joystick.Event("square_press"), func(data interface{}) {
			fmt.Println("square_press")
		})
		gobot.On(joystick.Event("square_release"), func(data interface{}) {
			fmt.Println("square_release")
		})
		gobot.On(joystick.Event("triangle_press"), func(data interface{}) {
			fmt.Println("triangle_press")
		})
		gobot.On(joystick.Event("triangle_release"), func(data interface{}) {
			fmt.Println("triangle_release")
		})
		gobot.On(joystick.Event("left_x"), func(data interface{}) {
			fmt.Println("left_x", data)
		})
		gobot.On(joystick.Event("left_y"), func(data interface{}) {
			fmt.Println("left_y", data)
		})
		gobot.On(joystick.Event("right_x"), func(data interface{}) {
			fmt.Println("right_x", data)
		})
		gobot.On(joystick.Event("right_y"), func(data interface{}) {
			fmt.Println("right_y", data)
		})
	}

	robot := gobot.NewRobot("joystickBot",
		[]gobot.Connection{joystickAdaptor},
		[]gobot.Device{joystick},
		work,
	)

	gbot.AddRobot(robot)

	gbot.Start()
}