Moved image saving to common.

cmd/tilemapper/image.go

@@ -1,24 +0,0 @@
-// Copyright 2014 by Sascha L. Teichmann
-// Use of this source code is governed by the MIT license
-// that can be found in the LICENSE file.
-
-package main
-
-import (
-	"bufio"
-	"image"
-	"image/png"
-	"os"
-)
-
-func SaveAsPNG(path string, img image.Image) (err error) {
-	var file *os.File
-	if file, err = os.Create(path); err != nil {
-		return
-	}
-	writer := bufio.NewWriter(file)
-	err = png.Encode(writer, img)
-	writer.Flush()
-	file.Close()
-	return
-}

cmd/tilemapper/main.go

@@ -111,7 +111,7 @@ func main() {
 			colors.Colors, color.RGBA{R: 0xff, G: 0xff, B: 0xff, A: 0xff})
 	}
 
-	if err = SaveAsPNG(outfile, image); err != nil {
+	if err = common.SaveAsPNG(outfile, image); err != nil {
 		log.Fatalf("writing image failed: %s", err)
 	}