main.go

// Press ESC to exit the program.
package main

import (
	"fmt"
	"os"
	"time"

	"github.com/gdamore/tcell"
)

func main() {

	tcell.SetEncodingFallback(tcell.EncodingFallbackASCII)
	s, e := tcell.NewScreen()
	if e != nil {
		fmt.Fprintf(os.Stderr, "%v\n", e)
		os.Exit(1)
	}
	if e = s.Init(); e != nil {
		fmt.Fprintf(os.Stderr, "%v\n", e)
		os.Exit(1)
	}

	s.SetStyle(tcell.StyleDefault.
		Background(tcell.ColorBlack))

	s.Clear()
	quit := make(chan struct{})

	go func() {
		for {
			ev := s.PollEvent()
			switch ev := ev.(type) {
			case *tcell.EventKey:
				switch ev.Key() {
				case tcell.KeyEscape, tcell.KeyEnter:
					close(quit)
					return
				}
			case *tcell.EventResize:
				s.Sync()
			}
		}
	}()

	cnt := 0
	dur := time.Duration(0)
	render := NewRender(s)
loop:
	for {
		select {
		case <-quit:
			break loop
		case <-time.After(time.Millisecond * 100):
		}
		start := time.Now()
		render.rend()
		cnt++
		dur += time.Now().Sub(start)
	}

	s.Fini()
	// fmt.Printf("Finished %d boxes in %s\n", cnt, dur)
	// fmt.Printf("Average is %0.3f ms / box\n", (float64(dur)/float64(cnt))/1000000.0)
}