func main() {
os.RemoveAll("kittens")
os.Mkdir("kittens", 0755)
log := golog.NewLogger("")
log.AddProcessor("first", golog.NewConsoleProcessor(golog.LOG_INFO, true))
// Fetch ten pseudo-randomly sized images from http://placekitten.com and
// write them to disk.
for i := 0; i < 10; i++ {
rand.Seed(time.Now().UnixNano())
size := 64 + rand.Int()%20
magFrac := float64(rand.Int()%2*5) / 10
magFac := float64(rand.Int()%4+1) + magFrac
size = int(math.Floor(magFac)) * (64 + rand.Int()%20)
imgResp, netErr := http.Get(fmt.Sprintf("http://placekitten.com/%d/%d", size, size))
if netErr != nil || imgResp.Status != "200 OK" {
log.Errorf("unable to download test sprite of size %d x %d", size, size)
continue
}
imgData, readErr := ioutil.ReadAll(imgResp.Body)
if readErr != nil {
log.Errorf("unable to read image data")
continue
}
var fileName string
if magFac != 1 {
fileName = fmt.Sprintf("kittens/k0%d@%#vx.jpg", i, magFac)
} else {
fileName = fmt.Sprintf("kittens/k0%d.jpg", i)
}
writeErr := ioutil.WriteFile(fileName, imgData, 0666)
if writeErr != nil {
log.Errorf("unable to write image data")
}
}
// wd, _ := os.Getwd()
sheet, styles, _, spriteErr := spracker.GenerateSpriteSheetFromFolder("kittens", "kittens", ".", false, false, log)
if spriteErr != nil {
log.Errorf("unable to generate spritesheet; please delete images and stylesheets and try again")
} else {
wspError := spracker.WriteSpriteSheet(sheet.Image, "kittens", sheet.Name, log)
wstError := spracker.WriteStyleSheet(styles, "kittens", sheet.Name+".css", log)
if wspError != nil {
log.Errorf("unable to write spritesheet")
}
if wstError != nil {
log.Errorf("unable to write stylesheet")
}
}
golog.FlushLogsAndDie()
}
func main() {
var (
generateScss bool
checkTimestamps bool
// projectFolder string
spritesFolder string
spriteSheetsFolder string
styleSheetsFolder string
)
flag.BoolVar(&generateScss, "scss", true, "generate Sass/SCSS variables and mixins")
flag.BoolVar(&checkTimestamps, "check-timestamps", true, "don't regenerate sprite-sheets if they're newer than their component sprite images")
// flag.StringVar(&projectFolder, "project-folder", ".", "base folder for your project")
flag.StringVar(&spritesFolder, "sprites-folder", ".", "input folder containing subfolders with sprite images")
flag.StringVar(&spriteSheetsFolder, "spritesheets-folder", ".", "output folder in which to deposit the sprite-sheets")
flag.StringVar(&styleSheetsFolder, "stylesheets-folder", ".", "output folder in which to deposit the stylesheets")
flag.Parse()
log := golog.NewLogger("")
log.AddProcessor("first", golog.NewConsoleProcessor(golog.LOG_INFO, true))
var stylesheetExtension string
if generateScss {
stylesheetExtension = ".scss"
} else {
stylesheetExtension = ".css"
}
sheets, styles, _ := spracker.GenerateSpriteSheetsFromFolders(spritesFolder, spriteSheetsFolder, spriteSheetsFolder, generateScss, checkTimestamps, log)
for i, sheet := range sheets {
wstErr := spracker.WriteSpriteSheet(sheet.Image, spriteSheetsFolder, sheet.Name, log)
if wstErr == nil {
log.Infof("Generated sprite-sheet '%s.png'", filepath.Join(spriteSheetsFolder, sheet.Name))
}
wspErr := spracker.WriteStyleSheet(styles[i], styleSheetsFolder, sheet.Name+stylesheetExtension, log)
if wspErr == nil {
log.Infof("Generated stylesheet '%s%s'", filepath.Join(styleSheetsFolder, sheet.Name), stylesheetExtension)
}
}
golog.FlushLogsAndDie()
}