// InitJoystick initializes the Joystick Subsystem and add available joysticks
func InitJoystick() {
if sdl.WasInit(sdl.INIT_JOYSTICK) == 0 {
sdl.InitSubSystem(sdl.INIT_JOYSTICK)
}
if sdl.NumJoysticks() > 0 {
for i := 0; i < sdl.NumJoysticks(); i++ {
id := sdl.JoystickID(i)
addJoystick(id)
}
sdl.JoystickEventState(sdl.ENABLE)
joysticksInitialised = true
}
}
func run() int {
var window *sdl.Window
var event sdl.Event
var running bool
var err error
sdl.Init(sdl.INIT_EVERYTHING)
window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED,
winWidth, winHeight, sdl.WINDOW_SHOWN)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", err)
return 1
}
defer window.Destroy()
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.MouseMotionEvent:
fmt.Printf("[%d ms] MouseMotion\ttype:%d\tid:%d\tx:%d\ty:%d\txrel:%d\tyrel:%d\n",
t.Timestamp, t.Type, t.Which, t.X, t.Y, t.XRel, t.YRel)
case *sdl.MouseButtonEvent:
fmt.Printf("[%d ms] MouseButton\ttype:%d\tid:%d\tx:%d\ty:%d\tbutton:%d\tstate:%d\n",
t.Timestamp, t.Type, t.Which, t.X, t.Y, t.Button, t.State)
case *sdl.MouseWheelEvent:
fmt.Printf("[%d ms] MouseWheel\ttype:%d\tid:%d\tx:%d\ty:%d\n",
t.Timestamp, t.Type, t.Which, t.X, t.Y)
case *sdl.KeyDownEvent:
fmt.Printf("[%d ms] Keyboard\ttype:%d\tsym:%c\tmodifiers:%d\tstate:%d\trepeat:%d\n",
t.Timestamp, t.Type, t.Keysym.Sym, t.Keysym.Mod, t.State, t.Repeat)
case *sdl.KeyUpEvent:
fmt.Printf("[%d ms] Keyboard\ttype:%d\tsym:%c\tmodifiers:%d\tstate:%d\trepeat:%d\n",
t.Timestamp, t.Type, t.Keysym.Sym, t.Keysym.Mod, t.State, t.Repeat)
case *sdl.JoyAxisEvent:
fmt.Printf("[%d ms] JoyAxis\ttype:%d\twhich:%c\taxis:%d\tvalue:%d\n",
t.Timestamp, t.Type, t.Which, t.Axis, t.Value)
case *sdl.JoyBallEvent:
fmt.Printf("[%d ms] JoyBall\ttype:%d\twhich:%d\tball:%d\txrel:%d\tyrel:%d\n",
t.Timestamp, t.Type, t.Which, t.Ball, t.XRel, t.YRel)
case *sdl.JoyButtonEvent:
fmt.Printf("[%d ms] JoyButton\ttype:%d\twhich:%d\tbutton:%d\tstate:%d\n",
t.Timestamp, t.Type, t.Which, t.Button, t.State)
case *sdl.JoyHatEvent:
fmt.Printf("[%d ms] JoyHat\ttype:%d\twhich:%d\that:%d\tvalue:%d\n",
t.Timestamp, t.Type, t.Which, t.Hat, t.Value)
case *sdl.JoyDeviceEvent:
if t.Type == sdl.JOYDEVICEADDED {
joysticks[int(t.Which)] = sdl.JoystickOpen(t.Which)
if joysticks[int(t.Which)] != nil {
fmt.Printf("Joystick %d connected\n", t.Which)
}
} else if t.Type == sdl.JOYDEVICEREMOVED {
if joystick := joysticks[int(t.Which)]; joystick != nil {
joystick.Close()
}
fmt.Printf("Joystick %d disconnected\n", t.Which)
}
default:
fmt.Printf("Some event\n")
}
}
}
sdl.Quit()
return 0
}