Big refactor
Signed-off-by: Martyn Ranyard <m@rtyn.berlin>
This commit is contained in:
parent
2202ba2fc0
commit
bed25ca03c
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@ -0,0 +1,27 @@
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package patterns
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func Even(number int) bool {
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return number %2 == 0
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}
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func FillPanel(w int, h int, r byte, g byte, b byte) [][]RGBcolor {
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grid := make([][]RGBcolor, w)
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for i := 0; i < w; i++ {
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grid[i] = make([]RGBcolor, h)
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}
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for x := 0; x < w; x++ {
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for y := 0; y < h; y++ {
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var rgb [3]byte
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rgb[0] = r
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rgb[1] = g
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rgb[2] = b
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grid[x][y] = rgb
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}
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}
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return grid
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}
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func FillPanelRGB(w int, h int, colour RGBcolor) [][]RGBcolor {
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return FillPanel(w,h,colour[0],colour[1],colour[2])
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}
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@ -0,0 +1,49 @@
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package patterns
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import "math"
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var sineoffset int = 0
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var lastSineSpeed uint16 = 0
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func Sinewave(w int, h int, bgColor RGBcolor, fgColor RGBcolor, speed uint16) [][]RGBcolor {
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if speed != lastSineSpeed {
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lastSineSpeed = speed
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sineoffset = 0
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}
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sineoffset += int(speed/40)
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background := FillPanelRGB(w,h,bgColor)
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for x := 0; x < w; x++ {
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y := int(math.Round((math.Sin(float64(x+sineoffset))+1) / 2 * float64(h-1)))
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background[x][y] = fgColor
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}
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return background
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}
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var lastSinePos int = 0
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func SineChase(w int, h int, bgColor RGBcolor, fgColor RGBcolor, speed uint16) [][]RGBcolor {
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if speed != lastSineSpeed {
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lastSineSpeed = speed
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lastSinePos = 0
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}
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background := FillPanelRGB(w,h,bgColor)
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y := int(math.Round((math.Sin(float64(lastSinePos))+1) / 2 * float64(h-1)))
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background[lastSinePos][y] = fgColor
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lastSinePos += 1
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if lastSinePos >= w {
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lastSinePos = 0
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}
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return background
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}
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func ZigZag(w int, h int) [][]RGBcolor {
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var bgColor = [3]byte{0,0,0}
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var fgColor = [3]byte{255,0,0}
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//var a = [5]int{2, 4, 6, 8, 10}
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background := FillPanelRGB(w,h,bgColor)
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for x := 0; x < w; x++ {
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y := x % (h-1)
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background[x][y] = fgColor
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}
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return background
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}
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@ -0,0 +1,16 @@
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package patterns
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// gradient returns from fromX to toX fading from (fromR,fromG,fromB) to (toR,toG,toB)
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// at least that's the idea.
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func Gradient(fromR byte, fromG byte, fromB byte, toR byte, toG byte, toB byte, fromX int, toX int) []byte {
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ret := make([]byte, toX*3)
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var stepR float32 = (float32(toR) - float32(fromR)) / (float32(toX) - float32(fromX))
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var stepG float32 = (float32(toG) - float32(fromG)) / (float32(toX) - float32(fromX))
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var stepB float32 = (float32(toB) - float32(fromB)) / (float32(toX) - float32(fromX))
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for i := fromX; i < toX*3; i += 3 {
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ret[i] = fromR + byte(float32(i/3)*stepR)
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ret[i+1] = fromG + byte(float32(i/3)*stepG)
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ret[i+2] = fromB + byte(float32(i/3)*stepB)
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}
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return ret
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}
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@ -0,0 +1,27 @@
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package patterns
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import "math/rand"
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import "time"
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func RedPanel(w int, h int) [][]RGBcolor {
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return FillPanel(w, h, 255, 0, 0)
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}
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var lastColour RGBcolor
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var lastIteration uint16 = 0
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func RandomColourPanel(w int, h int, speed uint16) [][]RGBcolor {
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if lastIteration > 0 {
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lastIteration -= 40
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}
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if lastIteration <= 0 {
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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var newColour RGBcolor
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newColour[0] = byte(r.Intn(255))
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newColour[1] = byte(r.Intn(255))
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newColour[2] = byte(r.Intn(255))
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lastColour = newColour
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lastIteration = speed
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}
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return FillPanel(w, h, lastColour[0], lastColour[1], lastColour[2])
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}
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@ -0,0 +1,68 @@
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package patterns
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import "math"
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type RGBcolor = [3]byte
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func plasmaRGBFromVal(val byte) (byte, byte, byte) {
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var r byte
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var g byte
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var b byte
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if val < 85 {
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r = val * 3
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g = 255 - r
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b = 0
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} else if val < 170 {
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b = (val - 85) * 3
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r = 255 - b
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g = 0
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} else {
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g = (val - 170) * 3
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b = 255 - g
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r = 0
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}
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return r, g, b
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}
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func LinearPlasma(l int) []byte {
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line := make([]byte, l*3)
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for i := 0; i < l*3; i += 3 {
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val := byte(i % 256)
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r, g, b := plasmaRGBFromVal(val)
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line[i] = r
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line[i+1] = g
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line[i+2] = b
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}
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return line
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}
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var offset float64 = 0.5
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func PlasmaPanel(w int, h int, speed uint16) [][]RGBcolor {
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grid := make([][]RGBcolor, w)
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for i := 0; i < w; i++ {
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grid[i] = make([]RGBcolor, h)
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}
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scale := math.Pi * 2.0 / float64(w)
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step := float64(5 * speed / 40)
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offset -= step
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if offset < 0 {
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offset += 1.0
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}
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for y := 0; y < h; y++ {
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for x := 0; x < w; x++ {
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u := math.Cos((float64(x) + offset) * scale)
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v := math.Cos((float64(y) + offset) * scale)
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w := math.Cos((float64(w) + offset) * scale)
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e := (u + v + w + 3.0) / 6.0
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r, g, b := plasmaRGBFromVal(byte((offset + e) * 255))
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var rgb [3]byte
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rgb[0] = r
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rgb[1] = g
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rgb[2] = b
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grid[x][y] = rgb
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}
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}
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return grid
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}
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@ -0,0 +1,17 @@
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package patterns
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func AlternateRGBLinear(R0 byte, G0 byte, B0 byte, R1 byte, G1 byte, B1 byte, fromX int, toX int) []byte {
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ret := make([]byte, toX*3)
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for i := fromX; i < toX*3; i += 3 {
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if Even(i) {
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ret[i] = R0
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ret[i+1] = G0
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ret[i+2] = B0
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} else {
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ret[i] = R1
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ret[i+1] = G1
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ret[i+2] = B1
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}
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}
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return ret
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}
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@ -0,0 +1,7 @@
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package queue
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type QueueItem struct {
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Effect string
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Duration uint16
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Speed uint16 //only used by some patterns
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}
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@ -0,0 +1,88 @@
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package remapping
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type RGBcolor = [3]byte
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func Even(number int) bool {
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return number %2 == 0
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}
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func Slice512(s []byte) [512]byte {
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var ret [512]byte
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for i := range s {
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if i < 512 {
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ret[i] = s[i]
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}
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}
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return ret
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}
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func SliceUnlenthed(s [512]byte) []byte {
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ret := make([]byte, 512)
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for i := range s {
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ret[i] = s[i]
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}
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return ret
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}
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func SliceRearrange(rowwidth int, rows int, alternaterows bool, inslice []byte) [][]byte {
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var flippedslice []byte
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if alternaterows {
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flippedslice = make([]byte, len(inslice)+3)
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for r := 0; r < rows; r++ {
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rowzero := (r * rowwidth * 3)
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if Even(r) {
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for c := 0; c < (rowwidth)*3; c += 3 {
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flippedslice[rowzero+c] = inslice[rowzero+c]
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flippedslice[rowzero+c+1] = inslice[rowzero+c+1]
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flippedslice[rowzero+c+2] = inslice[rowzero+c+2]
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}
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} else {
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x := rowwidth * 3
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for c := 0; c < (rowwidth)*3; c += 3 {
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x = x - 3
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flippedslice[rowzero+x] = inslice[rowzero+c]
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flippedslice[rowzero+x+1] = inslice[rowzero+c+1]
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flippedslice[rowzero+x+2] = inslice[rowzero+c+2]
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}
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}
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}
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} else {
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flippedslice = inslice
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}
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currentUniverse := 0
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currentUniversePosition := 0
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universes := make([][]byte, (len(flippedslice)/510)+1)
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currentUniverseSlice := make([]byte, 511)
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currentRowReverse := false
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for i := range flippedslice {
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if currentUniversePosition >= 510 {
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universes[currentUniverse] = currentUniverseSlice
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if !currentRowReverse {
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currentRowReverse = true
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} else {
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currentRowReverse = false
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}
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currentUniverse += 1
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currentUniversePosition = 0
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currentUniverseSlice = make([]byte, 511)
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}
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currentUniverseSlice[currentUniversePosition] = flippedslice[i]
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currentUniversePosition += 1
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}
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universes[currentUniverse] = currentUniverseSlice
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return universes
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}
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func XYGridToLinear(w int, h int, grid [][]RGBcolor) []byte {
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ret := make([]byte, w*h*3)
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i := 0
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for y := 0; y < h; y++ {
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for x := 0; x < w; x++ {
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ret[i] = grid[x][y][0]
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ret[i+1] = grid[x][y][1]
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ret[i+2] = grid[x][y][2]
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i += 3
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}
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}
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return ret
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}
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package webserver
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import (
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"github.com/gorilla/handlers"
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"github.com/gorilla/mux"
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queue "git.martyn.berlin/martyn/LEDController/internal/queue"
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"fmt"
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"net/http"
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"os"
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"time"
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"strconv"
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)
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func HealthHandler(response http.ResponseWriter, request *http.Request) {
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response.Header().Add("Content-type", "text/plain")
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fmt.Fprint(response, "I'm okay jack!")
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}
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func NotFoundHandler(response http.ResponseWriter, request *http.Request) {
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response.WriteHeader(404)
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fmt.Fprint(response, "I'm lost!")
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}
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func RootHandler(response http.ResponseWriter, request *http.Request) {
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response.Header().Add("Content-type", "text/plain")
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fmt.Fprint(response, "Not implemented")
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}
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var globalQueue chan queue.QueueItem;
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func PatternHandler(response http.ResponseWriter, request *http.Request) {
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vars := mux.Vars(request)
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response.Header().Add("Content-type", "text/plain")
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var e queue.QueueItem
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e.Effect = vars["pattern"]
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i, _ := strconv.Atoi(vars["duration"])
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e.Duration = uint16(i)
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_, found := vars["speed"]
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if found {
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i, _ := strconv.Atoi(vars["speed"])
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e.Speed = uint16(i)
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fmt.Printf("Speed passed %d\n",e.Speed)
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} else {
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e.Speed = 40
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}
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globalQueue <- e
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fmt.Fprint(response, "OKAY")
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}
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func HandleHTTP(queueChannel chan queue.QueueItem) {
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globalQueue = queueChannel
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r := mux.NewRouter()
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loggedRouter := handlers.LoggingHandler(os.Stdout, r)
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r.NotFoundHandler = http.HandlerFunc(NotFoundHandler)
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r.HandleFunc("/", RootHandler)
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r.HandleFunc("/healthz", HealthHandler)
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r.HandleFunc("/pattern/{pattern}/{duration}", PatternHandler)
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r.HandleFunc("/pattern/{pattern}/{duration}/{speed}", PatternHandler)
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http.Handle("/", r)
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srv := &http.Server{
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Handler: loggedRouter,
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Addr: "0.0.0.0:5353",
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WriteTimeout: 15 * time.Second,
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ReadTimeout: 15 * time.Second,
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}
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fmt.Println("Listening on 0.0.0.0:5353")
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srv.ListenAndServe()
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}
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214
main.go
214
main.go
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@ -1,154 +1,114 @@
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package main
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import (
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"fmt"
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"log"
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"time"
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"fmt"
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webserver "git.martyn.berlin/martyn/LEDController/internal/webserver"
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queue "git.martyn.berlin/martyn/LEDController/internal/queue"
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remapping "git.martyn.berlin/martyn/LEDController/internal/remapping"
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patterns "git.martyn.berlin/martyn/LEDController/internal/patterns"
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"github.com/Hundemeier/go-sacn/sacn"
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)
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func even(number int) bool {
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return number%2 == 0
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}
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type RGBcolor = [3]byte
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func slice_rearrange(rowwidth int, rows int, alternaterows bool, inslice []byte) [][]byte {
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var flippedslice []byte
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if alternaterows {
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flippedslice = make([]byte, len(inslice)+3)
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for r := 0; r < rows; r++ {
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rowzero := (r*rowwidth*3)
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if even(r) {
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for c := 0; c < (rowwidth)*3; c+=3 {
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flippedslice[rowzero+c] = inslice[rowzero+c]
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flippedslice[rowzero+c+1] = inslice[rowzero+c+1]
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flippedslice[rowzero+c+2] = inslice[rowzero+c+2]
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}
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} else {
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x := rowwidth*3
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for c := 0; c < (rowwidth)*3; c+=3 {
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x = x-3
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fmt.Println(x)
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flippedslice[rowzero+x] = inslice[rowzero+c]
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flippedslice[rowzero+x+1] = inslice[rowzero+c+1]
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flippedslice[rowzero+x+2] = inslice[rowzero+c+2]/*
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flippedslice[rowzero+c] = inslice[rowzero+(((rowwidth-1)*3)-c)]
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flippedslice[rowzero+c+1] = inslice[rowzero+(((rowwidth-1)*3)-c)-1]
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flippedslice[rowzero+c+2] = inslice[rowzero+(((rowwidth-1)*3)-c)-2]*/
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}
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}
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}
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} else {
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flippedslice = inslice
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}
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currentUniverse := 0
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currentUniversePosition := 0
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universes := make([][]byte, (len(flippedslice)/510)+1)
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currentUniverseSlice := make([]byte, 511)
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currentRowReverse := false;
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for i := range(flippedslice) {
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if currentUniversePosition >= 510 {
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fmt.Println("Reached end of universe!")
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universes[currentUniverse] = currentUniverseSlice
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if (!currentRowReverse) {
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currentRowReverse = true
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} else {
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currentRowReverse = false
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}
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currentUniverse += 1
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currentUniversePosition = 0
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currentUniverseSlice = make([]byte, 511)
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}
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currentUniverseSlice[currentUniversePosition] = flippedslice[i]
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currentUniversePosition += 1
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}
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universes[currentUniverse] = currentUniverseSlice
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return universes
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}
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var currentFrame [2][512]byte
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var channels [2]chan<-[512]byte
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var sema = make(chan struct{}, 1) // a binary semaphore guarding currentFrame
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func alternate(R0 byte, G0 byte, B0 byte, R1 byte, G1 byte, B1 byte, fromX int, toX int) []byte {
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ret := make([]byte, toX*3);
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for i := fromX; i < toX*3; i+=3 {
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if even(i) {
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ret[i] = R0
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ret[i+1] = G0
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ret[i+2] = B0
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} else {
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ret[i] = R1
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ret[i+1] = G1
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ret[i+2] = B1
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}
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}
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return ret
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}
|
||||
var currentEffect queue.QueueItem;
|
||||
var globalEffectChannel = make(chan queue.QueueItem, 1024)
|
||||
|
||||
// gradient returns from fromX to toX fading from (fromR,fromG,fromB) to (toR,toG,toB)
|
||||
// at least that's the idea.
|
||||
func gradient(fromR byte, fromG byte, fromB byte, toR byte, toG byte, toB byte, fromX int, toX int) []byte {
|
||||
ret := make([]byte, toX*3);
|
||||
var stepR float32 = (float32(toR) - float32(fromR)) / (float32(toX) - float32(fromX))
|
||||
var stepG float32 = (float32(toG) - float32(fromG)) / (float32(toX) - float32(fromX))
|
||||
var stepB float32 = (float32(toB) - float32(fromB)) / (float32(toX) - float32(fromX))
|
||||
for i := fromX; i < toX*3; i+=3 {
|
||||
ret[i] = fromR+byte(float32(i/3)*stepR)
|
||||
ret[i+1] = fromG+byte(float32(i/3)*stepG)
|
||||
ret[i+2] = fromB+byte(float32(i/3)*stepB)
|
||||
}
|
||||
return ret
|
||||
}
|
||||
|
||||
func slice512(s []byte) [512]byte {
|
||||
var ret [512]byte
|
||||
for i := range(s) {
|
||||
if i < 512 {
|
||||
ret[i] = s[i]
|
||||
func foreverLoop() {
|
||||
for /*ever*/ {
|
||||
time.Sleep(40 * time.Millisecond) //25fps
|
||||
for u := 0; u < 2; u++ {
|
||||
sema <- struct{}{} // acquire token
|
||||
channels[u] <- currentFrame[u]
|
||||
<- sema
|
||||
}
|
||||
}
|
||||
return ret
|
||||
}
|
||||
|
||||
func sliceUnlenthed(s [512]byte) []byte {
|
||||
ret := make([]byte, 512)
|
||||
for i := range(s) {
|
||||
ret[i] = s[i]
|
||||
}
|
||||
return ret
|
||||
}
|
||||
|
||||
func main() {
|
||||
go func() {
|
||||
fmt.Printf("Starting webserver on port %s\n", "5353")
|
||||
webserver.HandleHTTP(globalEffectChannel)
|
||||
}()
|
||||
//instead of "" you could provide an ip-address that the socket should bind to
|
||||
trans, err := sacn.NewTransmitter("", [16]byte{1, 2, 3}, "test")
|
||||
trans, err := sacn.NewTransmitter("", [16]byte{1, 2}, "test")
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
//activates the first universe
|
||||
ch1, err := trans.Activate(1)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
ch2, err := trans.Activate(2)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
//activates the universes
|
||||
for i := 0; i < 2; i++ {
|
||||
channels[i], err = trans.Activate(uint16(i+1))
|
||||
//deactivate the channel on exit
|
||||
defer close(ch1)
|
||||
defer close(ch2)
|
||||
defer close(channels[i])
|
||||
trans.SetMulticast(uint16(i+1), false) //this specific setup will not multicast on windows,
|
||||
trans.SetDestinations(uint16(i+1), []string{"192.168.1.139"})
|
||||
}
|
||||
|
||||
//set a unicast destination, and/or use multicast
|
||||
trans.SetMulticast(1, false)//this specific setup will not multicast on windows,
|
||||
//because no bind address was provided
|
||||
// Plasma for start frame
|
||||
rearranged := remapping.SliceRearrange(68, 4, true, remapping.XYGridToLinear(68, 4, patterns.PlasmaPanel(68, 4, 40)))
|
||||
currentFrame[0] = remapping.Slice512(rearranged[0])
|
||||
currentFrame[1] = remapping.Slice512(rearranged[1])
|
||||
var e queue.QueueItem
|
||||
e.Effect = "red"
|
||||
e.Duration = 40 * 50
|
||||
globalEffectChannel <- e
|
||||
e.Effect = "plasma"
|
||||
e.Duration = 0
|
||||
e.Speed = 40
|
||||
globalEffectChannel <- e
|
||||
|
||||
//set some example ip-addresses
|
||||
trans.SetDestinations(1, []string{"192.168.1.139"})
|
||||
trans.SetMulticast(2, false)//this specific setup will not multicast on windows,
|
||||
trans.SetDestinations(2, []string{"192.168.1.139"})
|
||||
|
||||
//send some random data for 10 seconds
|
||||
for i := 0; i < 20; i++ {
|
||||
channels := slice_rearrange(68,4,true,gradient(255,255,255,0,0,0,0,272))
|
||||
ch1 <- slice512(channels[0])
|
||||
ch2 <- slice512(channels[1])
|
||||
time.Sleep(500 * time.Millisecond)
|
||||
go func() {
|
||||
for /*ever*/ {
|
||||
if currentEffect.Duration > 0 {
|
||||
currentEffect.Duration -= 40
|
||||
} else {
|
||||
if len(globalEffectChannel) > 0 {
|
||||
currentEffect = <- globalEffectChannel
|
||||
}
|
||||
}
|
||||
var rearranged [][]byte
|
||||
switch currentEffect.Effect {
|
||||
case "line":
|
||||
rearranged = remapping.SliceRearrange(68, 4, true, remapping.XYGridToLinear(68, 4, patterns.ZigZag(68, 4)))
|
||||
case "plasma":
|
||||
rearranged = remapping.SliceRearrange(68, 4, true, remapping.XYGridToLinear(68, 4, patterns.PlasmaPanel(68, 4, currentEffect.Speed)))
|
||||
case "red":
|
||||
rearranged = remapping.SliceRearrange(68, 4, false, remapping.XYGridToLinear(68, 4, patterns.RedPanel(68,4)))
|
||||
case "random":
|
||||
rearranged = remapping.SliceRearrange(68, 4, false, remapping.XYGridToLinear(68, 4, patterns.RandomColourPanel(68,4,currentEffect.Speed)))
|
||||
case "linearplasma":
|
||||
rearranged = remapping.SliceRearrange(68, 4, false, patterns.LinearPlasma(68*4))
|
||||
case "gradientred":
|
||||
rearranged = remapping.SliceRearrange(68, 4, false, patterns.Gradient(255, 0, 0, 0, 0, 255, 0, 68*4))
|
||||
case "sine":
|
||||
var black patterns.RGBcolor
|
||||
var red patterns.RGBcolor
|
||||
red[0] = 255
|
||||
rearranged = remapping.SliceRearrange(68, 4, true, remapping.XYGridToLinear(68, 4, patterns.Sinewave(68, 4, black, red, currentEffect.Speed)))
|
||||
case "sinechase":
|
||||
var black patterns.RGBcolor
|
||||
var red patterns.RGBcolor
|
||||
red[0] = 255
|
||||
rearranged = remapping.SliceRearrange(68, 4, true, remapping.XYGridToLinear(68, 4, patterns.SineChase(68, 4, black, red, currentEffect.Speed)))
|
||||
default:
|
||||
rearranged = remapping.SliceRearrange(68, 4, false, remapping.XYGridToLinear(68, 4, patterns.FillPanel(68,4, 128,0,128)))
|
||||
}
|
||||
//rearranged := remapping.SliceRearrange(68,4,true,linearPlasma(68*4))
|
||||
sema <- struct{}{} // acquire token
|
||||
currentFrame[0] = remapping.Slice512(rearranged[0])
|
||||
currentFrame[1] = remapping.Slice512(rearranged[1])
|
||||
<- sema
|
||||
time.Sleep(40 * time.Millisecond)
|
||||
}
|
||||
}()
|
||||
foreverLoop();
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue