func (s *christmas) animateNextFrame(frameCount int, frame framebuffer.Segment) {
// Time to change lights
if time.Now().Sub(s.changeTime) > 0 {
s.changeTime = time.Now().Add(s.period)
// Move on to next light colour
if s.nextColour == uint(len(s.lightColours))-1 {
s.nextColour = 0
} else {
s.nextColour++
}
// Set each LED appropriately
off := framebuffer.NewRgbFromInt(0)
for i := uint(0); i < frame.Len(); i++ {
// Which colour index should this be
c := (i / s.lightSize) % uint(len(s.lightColours))
// Either turn colour on or turn LED off
if c == s.nextColour {
frame.Set(i, s.lightColours[s.nextColour])
} else {
frame.Set(i, off)
}
}
}
}
func (sc *staticColour) animateNextFrame(frameCount int, frame framebuffer.Segment) {
if frameCount == 0 {
for s := uint(0); s < frame.Len(); s++ {
frame.Set(s, sc.colour)
}
}
}
func (s *sweetshop) animateNextFrame(frameCount int, frame framebuffer.Segment) {
if time.Now().Sub(s.changeTime) > 0 {
// Set next change time
s.changeTime = time.Now().Add(s.period)
// Refresh the random colours
for i := uint(0); i < frame.Len(); i++ {
frame.Set(i, framebuffer.NewRgbFromInt(rand.Int()&(1<<24-1)))
}
}
}
func (r *rainbow) animateNextFrame(frameCount int, frame framebuffer.Segment) {
hue := r.startDegree
hueIncrement := 360.0 / float32(frame.Len())
for i := uint(0); i < frame.Len(); i++ {
frame.Set(i, framebuffer.NewRgbFromHsl(uint(hue), 100, 50))
hue += hueIncrement
}
r.startDegree += r.degreesPerFrame
if r.startDegree > 360 {
r.startDegree -= 360
}
}
func (c *cylon) animateNextFrame(frameCount int, frame framebuffer.Segment) {
frame.Set(c.pos, framebuffer.NewRgb(0, 0, 0))
if c.dir {
if c.pos == frame.Len()-1 {
c.dir = false
} else {
c.pos++
}
} else {
if c.pos == 0 {
c.dir = true
} else {
c.pos--
}
}
frame.Set(c.pos, framebuffer.NewRgb(255, 0, 0))
}
func (p *pulse) animateNextFrame(frameCount int, frame framebuffer.Segment) {
if p.up {
if p.val != 255 {
p.val++
} else {
p.up = false
p.val--
}
} else {
if p.val != 0 {
p.val--
} else {
p.up = true
p.val++
}
}
colour := framebuffer.NewRgb(p.val, p.val, p.val)
for s := uint(0); s < frame.Len(); s++ {
frame.Set(s, colour)
}
}
func (r *runner) animateNextFrame(frameCount int, frame framebuffer.Segment) {
frame.Set(r.pos, framebuffer.NewRgb(0, 0, 0))
r.pos = nextPos(r.pos, frame.Len())
frame.Set(r.pos, r.colour)
}