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Author SHA1 Message Date
Martyn 0dae7447a5 single-colour plasma, I hope 2021-01-03 11:19:15 +01:00
2 changed files with 61 additions and 3 deletions

View File

@ -112,3 +112,46 @@ func PlasmaPanel(w int, h int, speed uint16) [][]RGBcolor {
}
return grid
}
func singleColorPlasmaFromFloatVal(val float64, baseColor RGBcolor) (byte, byte, byte) {
var r byte
var g byte
var b byte
val = positiveModF(val)
r = baseColor[0] * val
g = baseColor[1] * val
b = baseColor[2] * val
return r, g, b
}
func PlasmaPanelSingleColor(w int, h int, speed uint16, baseColor RGBcolor) [][]RGBcolor {
grid := make([][]RGBcolor, w)
for i := 0; i < w; i++ {
grid[i] = make([]RGBcolor, h)
}
palletteOffset -= 0.05 / 1.0
if palletteOffset < 0 {
palletteOffset += 1.0
}
offset := 0.5 // center offset
scaleW := math.Pi * 2.0 / float64(w)
scaleH := math.Pi * 2.0 / float64(h)
for y := 0; y < h; y++ {
for x := 0; x < w; x++ {
u := math.Cos((float64(x) + offset) * scaleW)
v := math.Cos((float64(y) + offset) * scaleH)
j := math.Cos(offset * scaleW) // 2D - No Z
e := (u + v + j + 3.0) / 6.0
r, g, b := singleColorPlasmaFromFloatVal(palletteOffset+e, baseColor)
var rgb [3]byte
rgb[0] = r
rgb[1] = g
rgb[2] = b
grid[x][y] = rgb
}
}
return grid
}

View File

@ -55,6 +55,17 @@ func PatternHandler(response http.ResponseWriter, request *http.Request) {
} else {
e.Speed = 40
}
if vars["color"] != "" {
var c queue.RGBcolor
for cn, cv := range colornames.Map {
if cn == strings.ToLower(vars["name"]) {
c[0] = cv.R
c[1] = cv.G
c[2] = cv.B
}
}
e.SeedColour = c
}
if vars["override"] == "true" {
overrideFlag <- e
} else {
@ -159,9 +170,13 @@ func HandleHTTP(queueChannel chan queue.QueueItem, Port int, overrideChannel cha
r.HandleFunc("/pattern/{pattern}/", PatternHandler)
r.HandleFunc("/pattern/{pattern}/{duration}", PatternHandler)
r.HandleFunc("/pattern/{pattern}/{duration}/{speed}", PatternHandler)
r.HandleFunc("/colour/{name}", ColourHandler)
r.HandleFunc("/colour/{name}/override={override}", ColourHandler)
r.HandleFunc("/colour/{name}/{duration}", ColourHandler)
r.HandleFunc("/colorpattern/{color}/{pattern}/override={override}", PatternHandler)
r.HandleFunc("/colorpattern/{color}/{pattern}/", PatternHandler)
r.HandleFunc("/colorpattern/{color}/{pattern}/{duration}", PatternHandler)
r.HandleFunc("/colorpattern/{color}/{pattern}/{duration}/{speed}", PatternHandler)
r.HandleFunc("/bloop/{name}", ColourHandler)
r.HandleFunc("/bloop/{name}/override={override}", ColourHandler)
r.HandleFunc("/bloop/{name}/{duration}", ColourHandler)
r.HandleFunc("/color/{name}", ColourHandler)
r.HandleFunc("/color/{name}/override={override}", ColourHandler)
r.HandleFunc("/color/{name}/{duration}", ColourHandler)