749 lines
19 KiB
C++
749 lines
19 KiB
C++
#include "NeoPatterns.h"
|
|
|
|
#include "config.h"
|
|
|
|
NeoPatterns::NeoPatterns(uint16_t pixels, uint8_t pin, uint8_t type, void (*callback)()) :
|
|
Adafruit_NeoPixel(pixels, pin, type)
|
|
{
|
|
OnComplete = callback;
|
|
//Allocate a zero initialized block of memory big enough to hold "pixels" uint8_t.
|
|
pixelR = ( uint8_t* ) calloc( pixels, sizeof( uint8_t ) );
|
|
pixelG = ( uint8_t* ) calloc( pixels, sizeof( uint8_t ) );
|
|
pixelB = ( uint8_t* ) calloc( pixels, sizeof( uint8_t ) );
|
|
pixelR_buffer = ( uint8_t* ) calloc( pixels, sizeof( uint8_t ) );
|
|
pixelG_buffer = ( uint8_t* ) calloc( pixels, sizeof( uint8_t ) );
|
|
pixelB_buffer = ( uint8_t* ) calloc( pixels, sizeof( uint8_t ) );
|
|
}
|
|
|
|
void NeoPatterns::Update() {
|
|
if ((millis() - lastUpdate) > Interval) // time to update
|
|
{
|
|
lastUpdate = millis();
|
|
switch (ActivePattern)
|
|
{
|
|
case RAINBOW_CYCLE:
|
|
RainbowCycleUpdate();
|
|
break;
|
|
case THEATER_CHASE:
|
|
TheaterChaseUpdate();
|
|
break;
|
|
case COLOR_WIPE:
|
|
ColorWipeUpdate();
|
|
break;
|
|
case SCANNER:
|
|
ScannerUpdate();
|
|
break;
|
|
case FADE:
|
|
FadeUpdate();
|
|
break;
|
|
case RANDOM_FADE:
|
|
RandomFadeUpdate();
|
|
break;
|
|
case RANDOM_FADE_SINGLE:
|
|
RandomFadeSingleUpdate();
|
|
break;
|
|
case SMOOTH:
|
|
SmoothUpdate();
|
|
break;
|
|
case ICON:
|
|
IconUpdate();
|
|
break;
|
|
case PLASMA:
|
|
PlasmaUpdate();
|
|
break;
|
|
case FILL:
|
|
break;
|
|
case RANDOM:
|
|
break;
|
|
case NONE:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} else {
|
|
delay(1);
|
|
}
|
|
}
|
|
|
|
void NeoPatterns::Increment()
|
|
{
|
|
if (Direction == FORWARD)
|
|
{
|
|
Index++;
|
|
if (Index >= TotalSteps)
|
|
{
|
|
Index = 0;
|
|
if (OnComplete != NULL)
|
|
{
|
|
OnComplete(); // call the completion callback
|
|
}
|
|
}
|
|
}
|
|
else // Direction == REVERSE
|
|
{
|
|
--Index;
|
|
if (Index <= 0)
|
|
{
|
|
Index = TotalSteps - 1;
|
|
if (OnComplete != NULL)
|
|
{
|
|
OnComplete(); // call the completion callback
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void NeoPatterns::Reverse() {
|
|
if (Direction == FORWARD)
|
|
{
|
|
Direction = REVERSE;
|
|
Index = TotalSteps - 1;
|
|
}
|
|
else
|
|
{
|
|
Direction = FORWARD;
|
|
Index = 0;
|
|
}
|
|
}
|
|
|
|
void NeoPatterns::Stop(uint8_t interval) {
|
|
Interval = interval;
|
|
ActivePattern = NONE;
|
|
}
|
|
|
|
void NeoPatterns::None(uint8_t interval) {
|
|
Interval = interval;
|
|
if (ActivePattern != NONE) {
|
|
clear();
|
|
show();
|
|
}
|
|
ActivePattern = NONE;
|
|
}
|
|
|
|
/****************** Effects ******************/
|
|
|
|
void NeoPatterns::RainbowCycle(uint8_t interval, direction dir) {
|
|
ActivePattern = RAINBOW_CYCLE;
|
|
Interval = interval;
|
|
TotalSteps = 255;
|
|
Index = 0;
|
|
Direction = dir;
|
|
}
|
|
|
|
void NeoPatterns::RainbowCycleUpdate()
|
|
{
|
|
for (int i = 0; i < NUMDOTS; i++)
|
|
{
|
|
setPixelColorMapped(i, Wheel(((i * 256 / NUMDOTS) + Index) & 255));
|
|
}
|
|
show();
|
|
Increment();
|
|
}
|
|
|
|
void NeoPatterns::TheaterChase(uint32_t color1, uint32_t color2, uint8_t interval, direction dir) {
|
|
ActivePattern = THEATER_CHASE;
|
|
Interval = interval;
|
|
TotalSteps = NUMDOTS;
|
|
Color1 = color1;
|
|
Color2 = color2;
|
|
Index = 0;
|
|
Direction = dir;
|
|
}
|
|
void NeoPatterns::TheaterChaseUpdate() {
|
|
for (int i = 0; i < NUMDOTS; i++)
|
|
{
|
|
if ((i + Index) % 3 == 0)
|
|
{
|
|
setPixelColorMapped(i, Color1);
|
|
}
|
|
else
|
|
{
|
|
setPixelColorMapped(i, Color2);
|
|
}
|
|
}
|
|
show();
|
|
Increment();
|
|
}
|
|
|
|
void NeoPatterns::ColorWipe(uint32_t color, uint8_t interval, direction dir)
|
|
{
|
|
ActivePattern = COLOR_WIPE;
|
|
Interval = interval;
|
|
TotalSteps = NUMDOTS;
|
|
Color1 = color;
|
|
Index = 0;
|
|
Direction = dir;
|
|
}
|
|
|
|
// Update the Color Wipe Pattern
|
|
void NeoPatterns::ColorWipeUpdate()
|
|
{
|
|
setPixelColorMapped(Index, Color1);
|
|
show();
|
|
Increment();
|
|
}
|
|
|
|
// Initialize for a SCANNNER
|
|
void NeoPatterns::Scanner(uint32_t color1, uint8_t interval, bool colorful, bool spiral)
|
|
{
|
|
ActivePattern = SCANNER;
|
|
Interval = interval;
|
|
TotalSteps = (NUMDOTS - 1) * 2;
|
|
Color1 = color1;
|
|
Index = 0;
|
|
wPos = 0;
|
|
this->colorful = colorful;
|
|
this->spiral = spiral;
|
|
}
|
|
|
|
// Update the Scanner Pattern
|
|
void NeoPatterns::ScannerUpdate()
|
|
{
|
|
if (colorful) {
|
|
Color1 = Wheel(wPos);
|
|
if (wPos >= 255) {
|
|
wPos = 0;
|
|
}
|
|
else {
|
|
wPos++;
|
|
}
|
|
}
|
|
for (int i = 0; i < NUMDOTS; i++)
|
|
{
|
|
int finalpos;
|
|
if (spiral) {
|
|
finalpos = numToSpiralPos(i);
|
|
}
|
|
else
|
|
{
|
|
finalpos = i;
|
|
}
|
|
if (i == Index) // Scan Pixel to the right
|
|
{
|
|
setPixelColorMapped(finalpos, Color1);
|
|
}
|
|
else if (i == TotalSteps - Index) // Scan Pixel to the left
|
|
{
|
|
setPixelColorMapped(finalpos, Color1);
|
|
}
|
|
else // Fading tail
|
|
{
|
|
setPixelColorMapped(finalpos, DimColor(getPixelColorMapped(finalpos)));
|
|
}
|
|
}
|
|
show();
|
|
Increment();
|
|
|
|
}
|
|
|
|
void NeoPatterns::Fade(uint32_t color1, uint32_t color2, uint16_t steps, uint8_t interval, direction dir)
|
|
{
|
|
ActivePattern = FADE;
|
|
Interval = interval;
|
|
TotalSteps = steps;
|
|
Color1 = color1;
|
|
Color2 = color2;
|
|
Index = 0;
|
|
Direction = dir;
|
|
}
|
|
|
|
// Update the Fade Pattern
|
|
void NeoPatterns::FadeUpdate()
|
|
{
|
|
// Calculate linear interpolation between Color1 and Color2
|
|
// Optimise order of operations to minimize truncation error
|
|
uint8_t red = ((Red(Color1) * (TotalSteps - Index)) + (Red(Color2) * Index)) / TotalSteps;
|
|
uint8_t green = ((Green(Color1) * (TotalSteps - Index)) + (Green(Color2) * Index)) / TotalSteps;
|
|
uint8_t blue = ((Blue(Color1) * (TotalSteps - Index)) + (Blue(Color2) * Index)) / TotalSteps;
|
|
|
|
ColorSet(Color(red, green, blue));
|
|
show();
|
|
Increment();
|
|
}
|
|
|
|
void NeoPatterns::RandomFade(uint8_t interval ) {
|
|
ActivePattern = RANDOM_FADE;
|
|
Interval = interval;
|
|
TotalSteps = 255;
|
|
Index = 0;
|
|
}
|
|
|
|
void NeoPatterns::RandomFadeUpdate() {
|
|
ColorSet(Wheel(Index));
|
|
Increment();
|
|
}
|
|
|
|
void NeoPatterns::RandomFadeSingle(uint8_t interval, uint8_t speed) {
|
|
ActivePattern = RANDOM_FADE_SINGLE;
|
|
Interval = interval;
|
|
TotalSteps = 255;
|
|
Index = 0;
|
|
WheelSpeed = speed;
|
|
RandomBuffer();
|
|
}
|
|
|
|
void NeoPatterns::RandomFadeSingleUpdate() {
|
|
for (int i = 0; i < NUMDOTS; i++) {
|
|
pixelR_buffer[i] += random(0, random(0, WheelSpeed + 1) + 1); //use buffer red channel for color wheel
|
|
setPixelColorMapped(i, Wheel(pixelR_buffer[i]));
|
|
}
|
|
show();
|
|
Increment();
|
|
}
|
|
|
|
void NeoPatterns::RandomBuffer()
|
|
{
|
|
for (int i = 0; i < NUMDOTS; i++) {
|
|
uint32_t c = Wheel(random(0, 256));
|
|
pixelR_buffer[i] = (uint8_t)(c >> 16);
|
|
pixelG_buffer[i] = (uint8_t)(c >> 8);
|
|
pixelB_buffer[i] = (uint8_t)c;
|
|
}
|
|
}
|
|
|
|
void NeoPatterns::Random()
|
|
{
|
|
None(); // Stop all other effects
|
|
ActivePattern = RANDOM;
|
|
for (uint8_t i = 0; i < NUMDOTS; i++) {
|
|
setPixelColorMapped(i, Wheel(random(0, 256)));
|
|
}
|
|
show();
|
|
}
|
|
|
|
void NeoPatterns::Smooth(uint8_t wheelSpeed, uint8_t smoothing, uint8_t strength, uint8_t interval) {
|
|
ActivePattern = SMOOTH;
|
|
Interval = interval;
|
|
Index = 0;
|
|
WheelSpeed = wheelSpeed;
|
|
Smoothing = smoothing;
|
|
Strength = strength;
|
|
movingPoint_x = 3;
|
|
movingPoint_y = 3;
|
|
// Clear buffer (from previous or different effects)
|
|
for (int i = 0; i < NUMDOTS; i++) {
|
|
pixelR_buffer[i] = 0;
|
|
pixelG_buffer[i] = 0;
|
|
pixelB_buffer[i] = 0;
|
|
}
|
|
}
|
|
|
|
void NeoPatterns::SmoothUpdate() {
|
|
uint32_t c = Wheel(wPos);
|
|
wPosSlow += WheelSpeed;
|
|
wPos = (wPos + (wPosSlow / 10) ) % 255;
|
|
wPosSlow = wPosSlow % 16;
|
|
|
|
uint8_t r = (uint8_t)(c >> 16);
|
|
uint8_t g = (uint8_t)(c >> 8);
|
|
uint8_t b = (uint8_t)c;
|
|
|
|
movingPoint_x = movingPoint_x + WIDTH + random(-random(0, 1 + 1), random(0, 1 + 1) + 1);
|
|
movingPoint_y = movingPoint_y + HEIGHT + random(-random(0, 1 + 1), random(0, 1 + 1) + 1);
|
|
if (movingPoint_x < WIDTH) {
|
|
movingPoint_x = WIDTH - movingPoint_x;
|
|
} else if (movingPoint_x >= (2*WIDTH)) {
|
|
//movingPoint_x = 22 - movingPoint_x; //unklar warum 22? fuer WIDTH=8
|
|
movingPoint_x = (2*WIDTH) - movingPoint_x;
|
|
} else {
|
|
movingPoint_x -= WIDTH;
|
|
}
|
|
|
|
if (movingPoint_y < HEIGHT) {
|
|
movingPoint_y = HEIGHT - movingPoint_y;
|
|
} else if (movingPoint_y >= (2*HEIGHT)) {
|
|
//movingPoint_y = 22 - movingPoint_y;
|
|
movingPoint_y = (2*HEIGHT) - movingPoint_y;
|
|
} else {
|
|
movingPoint_y -= HEIGHT;
|
|
}
|
|
uint8_t startx = movingPoint_x;
|
|
uint8_t starty = movingPoint_y;
|
|
|
|
for (int i = 0; i < Strength; i++) {
|
|
|
|
movingPoint_x = startx + WIDTH + random(-random(0, 2 + 1), random(0, 2 + 1) + 1);
|
|
movingPoint_y = starty + HEIGHT + random(-random(0, 2 + 1), random(0, 2 + 1) + 1);
|
|
|
|
if (movingPoint_x < WIDTH) {
|
|
movingPoint_x = WIDTH - movingPoint_x;
|
|
} else if (movingPoint_x >= (2*WIDTH)) {
|
|
movingPoint_x = (2*WIDTH) - movingPoint_x;
|
|
} else {
|
|
movingPoint_x -= WIDTH;
|
|
}
|
|
|
|
if (movingPoint_y < HEIGHT) {
|
|
movingPoint_y = HEIGHT - movingPoint_y;
|
|
} else if (movingPoint_y >= (2*HEIGHT)) {
|
|
movingPoint_y = (2*HEIGHT) - movingPoint_y;
|
|
} else {
|
|
movingPoint_y -= HEIGHT;
|
|
}
|
|
|
|
if (pixelR[xyToPos(movingPoint_x, movingPoint_y)] < r) {
|
|
pixelR[xyToPos(movingPoint_x, movingPoint_y)]++;
|
|
} else if (pixelR[xyToPos(movingPoint_x, movingPoint_y)] > r) {
|
|
pixelR[xyToPos(movingPoint_x, movingPoint_y)]--;
|
|
}
|
|
if (pixelG[xyToPos(movingPoint_x, movingPoint_y)] < g) {
|
|
pixelG[xyToPos(movingPoint_x, movingPoint_y)]++;
|
|
} else if (pixelG[xyToPos(movingPoint_x, movingPoint_y)] > g) {
|
|
pixelG[xyToPos(movingPoint_x, movingPoint_y)]--;
|
|
}
|
|
if (pixelB[xyToPos(movingPoint_x, movingPoint_y)] < b) {
|
|
pixelB[xyToPos(movingPoint_x, movingPoint_y)]++;
|
|
} else if (pixelB[xyToPos(movingPoint_x, movingPoint_y)] > b) {
|
|
pixelB[xyToPos(movingPoint_x, movingPoint_y)]--;
|
|
}
|
|
}
|
|
|
|
movingPoint_x = startx;
|
|
movingPoint_y = starty;
|
|
|
|
for (int i = 0; i < NUMDOTS; i++) {
|
|
pixelR_buffer[i] = (Smoothing / 100.0) * pixelR[i] + (1.0 - (Smoothing / 100.0)) * getAverage(pixelR, i, 0, 0);
|
|
pixelG_buffer[i] = (Smoothing / 100.0) * pixelG[i] + (1.0 - (Smoothing / 100.0)) * getAverage(pixelG, i, 0, 0);
|
|
pixelB_buffer[i] = (Smoothing / 100.0) * pixelB[i] + (1.0 - (Smoothing / 100.0)) * getAverage(pixelB, i, 0, 0);
|
|
|
|
}
|
|
|
|
for (int i = 0; i < NUMDOTS; i++) {
|
|
pixelR[i] = pixelR_buffer[i];
|
|
pixelG[i] = pixelG_buffer[i];
|
|
pixelB[i] = pixelB_buffer[i];
|
|
setPixelColorMapped(i, Color(pixelR[i], pixelG[i], pixelB[i]));
|
|
}
|
|
|
|
show();
|
|
}
|
|
|
|
|
|
/****************** Icon ******************/
|
|
|
|
void NeoPatterns::Icon(uint8_t fontchar, String iconcolor, uint8_t interval)
|
|
{
|
|
// Save last effect, should be called after completion again
|
|
SavedPattern = ActivePattern;
|
|
SavedInterval = Interval;
|
|
SavedTotalSteps = TotalSteps;
|
|
SavedIndex = Index;
|
|
SavedColor1 = Color1;
|
|
SavedDirection = Direction;
|
|
SavedPlasmaPhase = PlasmaPhase;
|
|
SavedPlasmaPhaseIncrement = PlasmaPhaseIncrement;
|
|
SavedPlasmaColorStretch = PlasmaColorStretch;
|
|
ActivePattern = ICON;
|
|
Interval = interval;
|
|
TotalSteps = 80;
|
|
Index = 80;
|
|
Color1 = parseColor(iconcolor);
|
|
FontChar = fontchar;
|
|
Direction = REVERSE;
|
|
}
|
|
|
|
void NeoPatterns::IconUpdate()
|
|
{
|
|
for (int i = 0; i < NUMDOTS; i++) {
|
|
uint64_t mask = 1LL << (uint64_t)i;
|
|
|
|
if ( (font[FontChar]&mask) == 0) {
|
|
setPixelColorMapped(numToPos(i), Color(0, 0, 0)); //bit is 0 at pos i
|
|
} else {
|
|
float _brightness = 1.0 - ( (TotalSteps - Index) * 1.0 / TotalSteps );
|
|
uint8_t _r = (uint8_t)(Color1 >> 16);
|
|
uint8_t _g = (uint8_t)(Color1 >> 8);
|
|
uint8_t _b = (uint8_t)Color1;
|
|
setPixelColorMapped(numToPos(i), Color(_r * _brightness, _g * _brightness, _b * _brightness)); //bit is 1 at pos i
|
|
}
|
|
}
|
|
show();
|
|
Increment();
|
|
}
|
|
|
|
void NeoPatterns::IconComplete()
|
|
{
|
|
// Reload last effect
|
|
ActivePattern = SavedPattern;
|
|
Interval = SavedInterval;
|
|
TotalSteps = SavedTotalSteps;
|
|
Index = SavedIndex;
|
|
Color1 = SavedColor1;
|
|
Direction = SavedDirection;
|
|
PlasmaPhase = SavedPlasmaPhase;
|
|
PlasmaPhaseIncrement = SavedPlasmaPhaseIncrement;
|
|
PlasmaColorStretch = SavedPlasmaColorStretch;
|
|
}
|
|
|
|
// Based upon https://github.com/johncarl81/neopixelplasma
|
|
void NeoPatterns::Plasma(float phase, float phaseIncrement, float colorStretch, uint8_t interval)
|
|
{
|
|
ActivePattern = PLASMA;
|
|
Interval = interval;
|
|
PlasmaPhase = phase;
|
|
PlasmaPhaseIncrement = phaseIncrement;
|
|
PlasmaColorStretch = colorStretch;
|
|
}
|
|
|
|
void NeoPatterns::PlasmaUpdate()
|
|
{
|
|
PlasmaPhase += PlasmaPhaseIncrement;
|
|
int edge = (int)sqrt(numPixels());
|
|
// The two points move along Lissajious curves, see: http://en.wikipedia.org/wiki/Lissajous_curve
|
|
// The sin() function returns values in the range of -1.0..1.0, so scale these to our desired ranges.
|
|
// The phase value is multiplied by various constants; I chose these semi-randomly, to produce a nice motion.
|
|
Point p1 = { (sin(PlasmaPhase * 1.000) + 1.0) * (edge / 2), (sin(PlasmaPhase * 1.310) + 1.0) * (edge / 2) };
|
|
Point p2 = { (sin(PlasmaPhase * 1.770) + 1.0) * (edge / 2), (sin(PlasmaPhase * 2.865) + 1.0) * (edge / 2) };
|
|
Point p3 = { (sin(PlasmaPhase * 0.250) + 1.0) * (edge / 2), (sin(PlasmaPhase * 0.750) + 1.0) * (edge / 2)};
|
|
|
|
byte row, col;
|
|
|
|
// For each row...
|
|
for ( row = 0; row < edge; row++ ) {
|
|
float row_f = float(row); // Optimization: Keep a floating point value of the row number, instead of recasting it repeatedly.
|
|
|
|
// For each column...
|
|
for ( col = 0; col < edge; col++ ) {
|
|
float col_f = float(col); // Optimization.
|
|
|
|
// Calculate the distance between this LED, and p1.
|
|
Point dist1 = { col_f - p1.x, row_f - p1.y }; // The vector from p1 to this LED.
|
|
float distance1 = sqrt( dist1.x * dist1.x + dist1.y * dist1.y );
|
|
|
|
// Calculate the distance between this LED, and p2.
|
|
Point dist2 = { col_f - p2.x, row_f - p2.y }; // The vector from p2 to this LED.
|
|
float distance2 = sqrt( dist2.x * dist2.x + dist2.y * dist2.y );
|
|
|
|
// Calculate the distance between this LED, and p3.
|
|
Point dist3 = { col_f - p3.x, row_f - p3.y }; // The vector from p3 to this LED.
|
|
float distance3 = sqrt( dist3.x * dist3.x + dist3.y * dist3.y );
|
|
|
|
// Warp the distance with a sin() function. As the distance value increases, the LEDs will get light,dark,light,dark,etc...
|
|
// You can use a cos() for slightly different shading, or experiment with other functions. Go crazy!
|
|
float color_1 = distance1; // range: 0.0...1.0
|
|
float color_2 = distance2;
|
|
float color_3 = distance3;
|
|
float color_4 = (sin( distance1 * distance2 * PlasmaColorStretch )) + 2.0 * 0.5;
|
|
|
|
// Square the color_f value to weight it towards 0. The image will be darker and have higher contrast.
|
|
color_1 *= color_1 * color_4;
|
|
color_2 *= color_2 * color_4;
|
|
color_3 *= color_3 * color_4;
|
|
color_4 *= color_4;
|
|
|
|
// Scale the color up to 0..7 . Max brightness is 7.
|
|
//strip.setPixelColorMapped(col + (edge * row), strip.Color(color_4, 0, 0) );
|
|
|
|
setPixelColorMapped(xyToPos(row, col), Color(color_1, color_2, color_3));
|
|
}
|
|
}
|
|
show();
|
|
}
|
|
|
|
|
|
/****************** Helper functions ******************/
|
|
|
|
void NeoPatterns::SetColor1(uint32_t color) {
|
|
Color1 = color;
|
|
}
|
|
void NeoPatterns::SetColor2(uint32_t color) {
|
|
Color2 = color;
|
|
}
|
|
|
|
// Calculate 50% dimmed version of a color (used by ScannerUpdate)
|
|
uint32_t NeoPatterns::DimColor(uint32_t color)
|
|
{
|
|
// Shift R, G and B components one bit to the right
|
|
uint32_t dimColor = Color(Red(color) >> 1, Green(color) >> 1, Blue(color) >> 1);
|
|
return dimColor;
|
|
}
|
|
|
|
// Set all pixels to a color (synchronously)
|
|
void NeoPatterns::ColorSet(uint32_t color)
|
|
{
|
|
for (int i = 0; i < NUMDOTS; i++)
|
|
{
|
|
setPixelColorMapped(i, color);
|
|
}
|
|
show();
|
|
}
|
|
|
|
void NeoPatterns::ColorSetParameters(String parameters)
|
|
{
|
|
None();
|
|
ActivePattern = FILL;
|
|
ColorSet(parseColor(parameters));
|
|
}
|
|
|
|
// Returns the Red component of a 32-bit color
|
|
uint8_t NeoPatterns::Red(uint32_t color)
|
|
{
|
|
return (color >> 16) & 0xFF;
|
|
}
|
|
|
|
// Returns the Green component of a 32-bit color
|
|
uint8_t NeoPatterns::Green(uint32_t color)
|
|
{
|
|
return (color >> 8) & 0xFF;
|
|
}
|
|
|
|
// Returns the Blue component of a 32-bit color
|
|
uint8_t NeoPatterns::Blue(uint32_t color)
|
|
{
|
|
return color & 0xFF;
|
|
}
|
|
|
|
// Input a value 0 to 255 to get a color value.
|
|
// The colors are a transition r - g - b - back to r.
|
|
uint32_t NeoPatterns::Wheel(byte WheelPos)
|
|
{
|
|
WheelPos = 255 - WheelPos;
|
|
if (WheelPos < 85)
|
|
{
|
|
return Color(255 - WheelPos * 3, 0, WheelPos * 3);
|
|
}
|
|
else if (WheelPos < 170)
|
|
{
|
|
WheelPos -= 85;
|
|
return Color(0, WheelPos * 3, 255 - WheelPos * 3);
|
|
}
|
|
else
|
|
{
|
|
WheelPos -= 170;
|
|
return Color(WheelPos * 3, 255 - WheelPos * 3, 0);
|
|
}
|
|
}
|
|
|
|
// Convert x y pixel position to matrix position
|
|
#ifdef LEDBOX3X6
|
|
uint8_t ledbox3x6_mapping[6][3] = {
|
|
{0,1,2},
|
|
{5,4,3},
|
|
{6,7,8},
|
|
{15,14,9},
|
|
{16,13,10},
|
|
{17,12,11}
|
|
};
|
|
uint8_t NeoPatterns::xyToPos(int x, int y) {
|
|
return ledbox3x6_mapping[x][y];
|
|
}
|
|
#else
|
|
uint8_t NeoPatterns::xyToPos(int x, int y) {
|
|
if (y % 2 == 0) {
|
|
return (y * WIDTH + x);
|
|
} else {
|
|
return (y * WIDTH + (WIDTH-1 - x));
|
|
}
|
|
}
|
|
#endif
|
|
|
|
//convert pixel number to actual 8x8 matrix position
|
|
uint8_t NeoPatterns::numToPos(int num) {
|
|
int x = num % WIDTH;
|
|
int y = num / HEIGHT;
|
|
return xyToPos(x, y);
|
|
}
|
|
|
|
// Convert pixel number to actual 8x8 matrix position in a spiral
|
|
uint8_t NeoPatterns::numToSpiralPos(int num) {
|
|
int edge = (int)sqrt(numPixels());
|
|
int findx = edge - 1; // 7
|
|
int findy = 0;
|
|
int stepsize = edge - 1; // initial value (0..7)
|
|
int stepnumber = 0; // each "step" should be used twice
|
|
int count = -1;
|
|
int dir = 1; // direction: 0 = incX, 1=incY, 2=decX, 3=decY
|
|
if (num < edge) {
|
|
return num; // trivial
|
|
}
|
|
for (int i = edge; i <= num; i++)
|
|
{
|
|
count++;
|
|
if (count == stepsize) {
|
|
count = 0;
|
|
// Change direction
|
|
dir++;
|
|
stepnumber++;
|
|
if (stepnumber == 2) {
|
|
stepsize -= 1;
|
|
stepnumber = 0;
|
|
}
|
|
if (dir == 4) {
|
|
dir = 0;
|
|
}
|
|
}
|
|
switch (dir) {
|
|
case 0:
|
|
findx++;
|
|
break;
|
|
case 1:
|
|
findy++;
|
|
break;
|
|
case 2:
|
|
findx--;
|
|
break;
|
|
case 3:
|
|
findy--;
|
|
break;
|
|
}
|
|
}
|
|
return xyToPos(findx, findy);
|
|
}
|
|
|
|
uint8_t NeoPatterns::getAverage(uint8_t array[], uint8_t i, int x, int y)
|
|
{
|
|
// TODO: This currently works only with 8x8 (64 pixel)!
|
|
uint16_t sum = 0;
|
|
uint8_t count = 0;
|
|
if (i >= 8) { //up
|
|
sum += array[i - 8];
|
|
count++;
|
|
}
|
|
if (i < (64 - 8)) { //down
|
|
sum += array[i + 8];
|
|
count++;
|
|
}
|
|
if (i >= 1) { //left
|
|
sum += array[i - 1];
|
|
count++;
|
|
}
|
|
if (i < (64 - 1)) { //right
|
|
sum += array[i + 1];
|
|
count++;
|
|
}
|
|
return sum / count;
|
|
}
|
|
|
|
uint32_t NeoPatterns::parseColor(String value) {
|
|
if (value.charAt(0) == '#') { //solid fill
|
|
String color = value.substring(1);
|
|
int number = (int) strtol( &color[0], NULL, 16);
|
|
// Split them up into r, g, b values
|
|
int r = number >> 16;
|
|
int g = number >> 8 & 0xFF;
|
|
int b = number & 0xFF;
|
|
return Color(r, g, b);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
void NeoPatterns::setPixelColorMapped(uint8_t i, uint32_t c){
|
|
#ifdef LEDBOX3X6
|
|
setPixelColor(i*2,c);
|
|
setPixelColor(i*2+1,c);
|
|
#else
|
|
setPixelColor(i,c);
|
|
#endif
|
|
}
|
|
uint32_t NeoPatterns::getPixelColorMapped(uint8_t i){
|
|
|
|
#ifdef LEDBOX3X6
|
|
return getPixelColor(i*2);
|
|
#else
|
|
return getPixelColor(i);
|
|
#endif
|
|
}
|
|
|
|
|