70 lines
1.2 KiB
Go
70 lines
1.2 KiB
Go
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package main
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import (
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"fmt"
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"github.com/nsf/termbox-go"
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"time"
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)
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func tbPrint(x, y int, fg, bg termbox.Attribute, msg string) {
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for _, c := range msg {
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termbox.SetCell(x, y, c, fg, bg)
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x++
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}
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}
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func draw(i int) {
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termbox.Clear(termbox.ColorDefault, termbox.ColorDefault)
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defer termbox.Flush()
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w, h := termbox.Size()
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s := fmt.Sprintf("count = %d", i)
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tbPrint((w/2)-(len(s)/2), h/2, termbox.ColorRed, termbox.ColorDefault, s)
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}
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func main() {
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err := termbox.Init()
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if err != nil {
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panic(err)
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}
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termbox.SetInputMode(termbox.InputEsc)
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go func() {
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time.Sleep(5 * time.Second)
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termbox.Interrupt()
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// This should never run - the Interrupt(), above, should cause the event
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// loop below to exit, which then exits the process. If something goes
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// wrong, this panic will trigger and show what happened.
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time.Sleep(1 * time.Second)
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panic("this should never run")
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}()
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var count int
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draw(count)
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mainloop:
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for {
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switch ev := termbox.PollEvent(); ev.Type {
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case termbox.EventKey:
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if ev.Ch == '+' {
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count++
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} else if ev.Ch == '-' {
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count--
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}
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case termbox.EventError:
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panic(ev.Err)
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case termbox.EventInterrupt:
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break mainloop
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}
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draw(count)
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}
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termbox.Close()
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fmt.Println("Finished")
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}
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