platform/joystick: add bin/scanner to handle OS differences

Signed-off-by: deadprogram <ron@hybridgroup.com>

go.mod

@@ -35,10 +35,12 @@ require (
 	github.com/gorilla/websocket v1.5.0 // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/klauspost/compress v1.16.7 // indirect
+	github.com/mattn/go-runewidth v0.0.9 // indirect
 	github.com/muka/go-bluetooth v0.0.0-20221213043340-85dc80edc4e1 // indirect
 	github.com/nats-io/nats-server/v2 v2.7.4 // indirect
 	github.com/nats-io/nkeys v0.4.4 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
+	github.com/nsf/termbox-go v1.1.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/saltosystems/winrt-go v0.0.0-20230613063811-c792451fa808 // indirect
 	github.com/sirupsen/logrus v1.9.3 // indirect

go.sum

@@ -54,6 +54,8 @@ github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfn
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
+github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/minio/highwayhash v1.0.2 h1:Aak5U0nElisjDCfPSG79Tgzkn2gl66NxOMspRrKnA/g=
 github.com/muka/go-bluetooth v0.0.0-20220830075246-0746e3a1ea53/go.mod h1:dMCjicU6vRBk34dqOmIZm0aod6gUwZXOXzBROqGous0=
 github.com/muka/go-bluetooth v0.0.0-20221213043340-85dc80edc4e1 h1:BuVRHr4HHJbk1DHyWkArJ7E8J/VA8ncCr/VLnQFazBo=
@@ -69,6 +71,8 @@ github.com/nats-io/nuid v1.0.1 h1:5iA8DT8V7q8WK2EScv2padNa/rTESc1KdnPw4TC2paw=
 github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
+github.com/nsf/termbox-go v1.1.1 h1:nksUPLCb73Q++DwbYUBEglYBRPZyoXJdrj5L+TkjyZY=
+github.com/nsf/termbox-go v1.1.1/go.mod h1:T0cTdVuOwf7pHQNtfhnEbzHbcNyCEcVU4YPpouCbVxo=
 github.com/pascaldekloe/goe v0.1.0/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
 github.com/paypal/gatt v0.0.0-20151011220935-4ae819d591cf/go.mod h1:+AwQL2mK3Pd3S+TUwg0tYQjid0q1txyNUJuuSmz8Kdk=
 github.com/pelletier/go-toml v1.6.0/go.mod h1:5N711Q9dKgbdkxHL+MEfF31hpT7l0S0s/t2kKREewys=

platforms/joystick/bin/scanner.go

@@ -8,65 +8,106 @@
 // Based on original code from Jacky Boen
 // https://github.com/veandco/go-sdl2/blob/master/examples/events/events.go
 
+// Simple program that displays the state of the specified joystick
+//
+//     go run joysticktest.go 2
+// displays state of joystick id 2
 package main
 
 import (
 	"fmt"
+	"github.com/nsf/termbox-go"
+	"github.com/0xcafed00d/joystick"
 	"os"
-
-	"github.com/veandco/go-sdl2/sdl"
+	"strconv"
+	"time"
 )
 
-var joysticks [16]*sdl.Joystick
-
-func run() int {
-	var event sdl.Event
-	var running bool
-
-	sdl.Init(sdl.INIT_JOYSTICK)
-	defer sdl.Quit()
-
-	sdl.JoystickEventState(sdl.ENABLE)
-
-	running = true
-	for running {
-		for event = sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
-			switch t := event.(type) {
-			case *sdl.QuitEvent:
-				running = false
-			case *sdl.JoyAxisEvent:
-				fmt.Printf("[%d ms] Axis: %d\tvalue:%d\n",
-					t.Timestamp, t.Axis, t.Value)
-			case *sdl.JoyBallEvent:
-				fmt.Printf("[%d ms] Ball:%d\txrel:%d\tyrel:%d\n",
-					t.Timestamp, t.Ball, t.XRel, t.YRel)
-			case *sdl.JoyButtonEvent:
-				fmt.Printf("[%d ms] Button:%d\tstate:%d\n",
-					t.Timestamp, t.Button, t.State)
-			case *sdl.JoyHatEvent:
-				fmt.Printf("[%d ms] Hat:%d\tvalue:%d\n",
-					t.Timestamp, t.Hat, t.Value)
-			case *sdl.JoyDeviceAddedEvent:
-				joysticks[int(t.Which)] = sdl.JoystickOpen(int(t.Which))
-				if joysticks[int(t.Which)] != nil {
-					fmt.Printf("Joystick %d connected\n", t.Which)
-				}
-			case *sdl.JoyDeviceRemovedEvent:
-				if joystick := joysticks[int(t.Which)]; joystick != nil {
-					joystick.Close()
-				}
-				fmt.Printf("Joystick %d disconnected\n", t.Which)
-			default:
-				fmt.Printf("Unknown event\n")
-			}
+func printAt(x, y int, s string) {
+	for _, r := range s {
+		termbox.SetCell(x, y, r, termbox.ColorDefault, termbox.ColorDefault)
+		x++
+	}
+}
+
+func readJoystick(js joystick.Joystick) {
+	jinfo, err := js.Read()
+
+	if err != nil {
+		printAt(1, 5, "Error: "+err.Error())
+		return
+	}
+
+	printAt(1, 5, "Buttons:")
+	for button := 0; button < js.ButtonCount(); button++ {
+		if jinfo.Buttons&(1<<uint32(button)) != 0 {
+			printAt(10+button, 5, "X")
+			printAt(1, 6, fmt.Sprintf("Button %2d Pressed", button))
+		} else {
+			printAt(10+button, 5, ".")
 		}
+	}
 
-		sdl.Delay(16)
+	for axis := 0; axis < js.AxisCount(); axis++ {
+		printAt(1, axis+8, fmt.Sprintf("Axis %2d Value: %7d", axis, jinfo.AxisData[axis]))
 	}
 
-	return 0
+	return
 }
 
 func main() {
-	os.Exit(run())
+
+	jsid := 0
+	if len(os.Args) > 1 {
+		i, err := strconv.Atoi(os.Args[1])
+		if err != nil {
+			fmt.Println(err)
+			return
+		}
+		jsid = i
+	}
+
+	js, jserr := joystick.Open(jsid)
+
+	if jserr != nil {
+		fmt.Println(jserr)
+		return
+	}
+
+	err := termbox.Init()
+	if err != nil {
+		panic(err)
+	}
+	defer termbox.Close()
+
+	eventQueue := make(chan termbox.Event)
+	go func() {
+		for {
+			eventQueue <- termbox.PollEvent()
+		}
+	}()
+
+	ticker := time.NewTicker(time.Millisecond * 40)
+
+	for doQuit := false; !doQuit; {
+		select {
+		case ev := <-eventQueue:
+			if ev.Type == termbox.EventKey {
+				if ev.Ch == 'q' {
+					doQuit = true
+				}
+			}
+			if ev.Type == termbox.EventResize {
+				termbox.Flush()
+			}
+
+		case <-ticker.C:
+			printAt(1, 0, "-- Press 'q' to Exit --")
+			printAt(1, 1, fmt.Sprintf("Joystick Name: %s", js.Name()))
+			printAt(1, 2, fmt.Sprintf("   Axis Count: %d", js.AxisCount()))
+			printAt(1, 3, fmt.Sprintf(" Button Count: %d", js.ButtonCount()))
+			readJoystick(js)
+			termbox.Flush()
+		}
+	}
 }