95 lines
2.2 KiB
Go
95 lines
2.2 KiB
Go
package main
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import (
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"fmt"
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"os"
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"github.com/veandco/go-sdl2/sdl"
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)
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var joysticks [16]*sdl.Joystick
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func run() (err error) {
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var window *sdl.Window
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if err = sdl.Init(sdl.INIT_EVERYTHING); err != nil {
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return
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}
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defer sdl.Quit()
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window, err = sdl.CreateWindow("Input", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, 800, 600, sdl.WINDOW_SHOWN)
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if err != nil {
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return
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}
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defer window.Destroy()
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sdl.JoystickEventState(sdl.ENABLE)
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running := true
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for running {
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for event := sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
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switch t := event.(type) {
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case *sdl.QuitEvent:
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running = false
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case *sdl.JoyAxisEvent:
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fmt.Printf("[%d ms] JoyAxis\ttype:%d\twhich:%c\taxis:%d\tvalue:%d\n",
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t.Timestamp, t.Type, t.Which, t.Axis, t.Value)
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case *sdl.JoyBallEvent:
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fmt.Println("Joystick", t.Which, "trackball moved by", t.XRel, t.YRel)
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case *sdl.JoyButtonEvent:
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if t.State == sdl.PRESSED {
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fmt.Println("Joystick", t.Which, "button", t.Button, "pressed")
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} else {
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fmt.Println("Joystick", t.Which, "button", t.Button, "released")
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}
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case *sdl.JoyHatEvent:
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position := ""
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switch t.Value {
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case sdl.HAT_LEFTUP:
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position = "top-left"
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case sdl.HAT_UP:
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position = "top"
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case sdl.HAT_RIGHTUP:
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position = "top-right"
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case sdl.HAT_RIGHT:
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position = "right"
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case sdl.HAT_RIGHTDOWN:
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position = "bottom-right"
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case sdl.HAT_DOWN:
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position = "bottom"
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case sdl.HAT_LEFTDOWN:
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position = "bottom-left"
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case sdl.HAT_LEFT:
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position = "left"
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case sdl.HAT_CENTERED:
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position = "center"
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}
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fmt.Println("Joystick", t.Which, "hat", t.Hat, "moved to", position, "position")
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case *sdl.JoyDeviceAddedEvent:
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// Open joystick for use
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joysticks[int(t.Which)] = sdl.JoystickOpen(int(t.Which))
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if joysticks[int(t.Which)] != nil {
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fmt.Println("Joystick", t.Which, "connected")
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}
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case *sdl.JoyDeviceRemovedEvent:
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if joystick := joysticks[int(t.Which)]; joystick != nil {
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joystick.Close()
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}
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fmt.Println("Joystick", t.Which, "disconnected")
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}
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}
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sdl.Delay(16)
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}
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return
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}
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func main() {
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if err := run(); err != nil {
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os.Exit(1)
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}
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}
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