created some handler functions

checking what happens if i don't delete image from map

animation.go

@@ -30,7 +30,6 @@ type Animation struct {
 	height   int
 	width    int
 	stroke   int
-	image    []image.Image
 	images   map[string]image.Image
 	updown   string
 	mqmsg    chan mqtt.Message
@@ -45,36 +44,36 @@ func animator(tk *rgbmatrix.ToolKit, mqMessages chan mqtt.Message) {
 	tk.PlayAnimation(NewAnimation(image.Point{127, 64}, mqMessages))
 }
 
-// initializes the struct for the an play animation function, this could all be dumped into function that's wrapping go routine if I wanted
-func NewAnimation(sz image.Point, mqMessages chan mqtt.Message) *Animation {
-	imageMap := make(map[string]image.Image)
-	reader, err := os.Open("marioUp.png")
+func loadMario(file string) image.Image {
+
+	reader, err := os.Open(file)
 	if err != nil {
 		log.Fatal(err)
 	}
 	rawMario, _, err := image.Decode(reader)
-
-	//marioUp := imaging.FlipH(imaging.Resize(rawMario, 16, 16, imaging.Lanczos))
-	marioUp := imaging.Resize(rawMario, 16, 16, imaging.Lanczos)
-	imageMap["marioUp"] = marioUp
-	reader, err = os.Open("marioDown.png")
 	if err != nil {
 		log.Fatal(err)
 	}
-	rawMario, _, err = image.Decode(reader)
-	if err != nil {
-		log.Fatal(err)
+	mario := imaging.Resize(rawMario, 16, 16, imaging.Lanczos)
+	return mario
 }
-	//marioDown := imaging.FlipH(imaging.Resize(rawMario, 16, 16, imaging.Lanczos))
-	marioDown := imaging.Resize(rawMario, 16, 16, imaging.Lanczos)
-	imageMap["marioDown"] = marioDown
+
+func initialMap() map[string]image.Image {
+	imageMap := make(map[string]image.Image)
+	imageMap["marioUp"] = loadMario("marioUp.png")
+	imageMap["marioDown"] = loadMario("marioDown.png")
+	return imageMap
+}
+
+// initializes the struct for the an play animation function, this could all be dumped into function that's wrapping go routine if I wanted
+func NewAnimation(sz image.Point, mqMessages chan mqtt.Message) *Animation {
 	return &Animation{
 		ctx:       gg.NewContext(sz.X, sz.Y),
 		dir:       image.Point{1, 1},
 		height:    8,
 		width:     8,
 		stroke:    8,
-		images:    imageMap,
+		images:    initialMap(),
 		updown:    "marioUp",
 		mqmsg:     mqMessages,
 		countDown: 5000,
@@ -100,7 +99,7 @@ func (a *Animation) Next() (image.Image, <-chan time.Time, error) {
 			a.countDown -= 50
 		} else {
 			//a.image = a.image[:len(a.image)-1]
-			delete(a.images, "doorbell")
+			//delete(a.images, "doorbell")
 			a.countDown = 5000
 		}
 	}