box-o-sand/conway/conways-game-of-life/main.go

package main

import (
	"flag"
	"fmt"
	"os"
)

import (
	. "github.com/meatballhat/box-o-sand/conway"
)

var (
	height = flag.Int("height", 40, "Game height")
	width  = flag.Int("width", 80, "Game width")
	mutate = flag.Bool("mutate", false, "Mutate every other generation")
	web    = flag.Bool("web", false, "Run a web-based game.")
	addr   = flag.String("addr", ":9775",
		"Address for server of web-based game (ignored if running a console game.)")
	sleepMs = flag.Int("sleep.ms", 200,
		"Millisecond sleep interval per generation")
)

func main() {
	flag.Parse()

	var (
		retCode int
		err     error
	)

	if *web {
		retCode, err = RunWebGame(*addr, *height, *width, *sleepMs, *mutate)
		if err != nil {
			fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
		}
	} else {
		retCode, err = RunConsoleGame(*height, *width, *sleepMs, *mutate)
		if err != nil {
			fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
		}
	}

	os.Exit(retCode)
}