rgb-led-board/animateDoorbell.go

package main

import (
	"bytes"
	b64 "encoding/base64"
	"image"
	"image/color"

	"github.com/disintegration/imaging"
)

type Doorbell struct {
	image image.Image
}

func (a *Animation) animateDoorbell() {
	if a.countDown > 0 {
		a.ctx.DrawImageAnchored(a.doorbell.image, 0, 0, 0, 0)
		a.countDown -= 50
	} else {
		a.doorbell = Doorbell{}
		a.countDown = 5000
		a.ctx.Pop()
	}
}
func (a *Animation) loadImage(imgType string, img string) {
	baseImage, _ := b64.StdEncoding.DecodeString(img)
	bigImage, _, _ := image.Decode(bytes.NewReader(baseImage))
	a.doorbell.image = imaging.Resize(bigImage, 64, 64, imaging.Lanczos)
	a.ctx.Push()
	a.ctx.Clear()
	a.ctx.SetColor(color.Black)
	a.ctx.SetColor(color.White)
}