377 lines
8.5 KiB
C++
377 lines
8.5 KiB
C++
#include "NeoPattern.h"
|
|
|
|
// Constructor - calls base-class constructor to initialize strip
|
|
NeoPattern::NeoPattern(uint16_t pixels, uint8_t pin, uint8_t type, void (*callback)(int))
|
|
: Adafruit_NeoPixel(pixels, pin, type)
|
|
{
|
|
frameBuffer = (uint8_t *)malloc(768);
|
|
OnComplete = callback;
|
|
TotalSteps = numPixels();
|
|
begin();
|
|
}
|
|
|
|
NeoPattern::NeoPattern(uint16_t pixels, uint8_t pin, uint8_t type)
|
|
: Adafruit_NeoPixel(pixels, pin, type)
|
|
{
|
|
frameBuffer = (uint8_t *)malloc(768);
|
|
TotalSteps = numPixels();
|
|
begin();
|
|
}
|
|
|
|
NeoPattern::~NeoPattern() {
|
|
if (frameBuffer) {
|
|
free(frameBuffer);
|
|
}
|
|
}
|
|
|
|
void NeoPattern::handleStream(uint8_t *data, size_t len)
|
|
{
|
|
//const uint16_t *data16 = (uint16_t *)data;
|
|
bufferSize = len;
|
|
memcpy(frameBuffer, data, len);
|
|
}
|
|
|
|
void NeoPattern::drawFrameBuffer(int w, uint8_t *frame, int length)
|
|
{
|
|
for (int i = 0; i < length; i++)
|
|
{
|
|
uint8_t r = frame[i];
|
|
uint8_t g = frame[i + 1];
|
|
uint8_t b = frame[i + 2];
|
|
setPixelColor(i, r, g, b);
|
|
}
|
|
}
|
|
|
|
void NeoPattern::onCompleteDefault(int pixels)
|
|
{
|
|
//Serial.println("onCompleteDefault");
|
|
// FIXME no specific code
|
|
if (ActivePattern == THEATER_CHASE)
|
|
{
|
|
return;
|
|
}
|
|
Reverse();
|
|
//Serial.println("pattern completed");
|
|
}
|
|
|
|
// Increment the Index and reset at the end
|
|
void NeoPattern::Increment()
|
|
{
|
|
completed = 0;
|
|
if (Direction == FORWARD)
|
|
{
|
|
Index++;
|
|
if (Index >= TotalSteps)
|
|
{
|
|
Index = 0;
|
|
completed = 1;
|
|
if (OnComplete != NULL)
|
|
{
|
|
OnComplete(numPixels()); // call the comlpetion callback
|
|
}
|
|
else
|
|
{
|
|
onCompleteDefault(numPixels());
|
|
}
|
|
}
|
|
}
|
|
else // Direction == REVERSE
|
|
{
|
|
--Index;
|
|
if (Index <= 0)
|
|
{
|
|
Index = TotalSteps - 1;
|
|
completed = 1;
|
|
if (OnComplete != NULL)
|
|
{
|
|
OnComplete(numPixels()); // call the comlpetion callback
|
|
}
|
|
else
|
|
{
|
|
onCompleteDefault(numPixels());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Reverse pattern direction
|
|
void NeoPattern::Reverse()
|
|
{
|
|
if (Direction == FORWARD)
|
|
{
|
|
Direction = REVERSE;
|
|
Index = TotalSteps - 1;
|
|
}
|
|
else
|
|
{
|
|
Direction = FORWARD;
|
|
Index = 0;
|
|
}
|
|
}
|
|
|
|
// Initialize for a RainbowCycle
|
|
void NeoPattern::RainbowCycle(uint8_t interval, direction dir)
|
|
{
|
|
ActivePattern = RAINBOW_CYCLE;
|
|
Interval = interval;
|
|
TotalSteps = 255;
|
|
Index = 0;
|
|
Direction = dir;
|
|
}
|
|
|
|
// Update the Rainbow Cycle Pattern
|
|
void NeoPattern::RainbowCycleUpdate()
|
|
{
|
|
for (int i = 0; i < numPixels(); i++)
|
|
{
|
|
setPixelColor(i, Wheel(((i * 256 / numPixels()) + Index) & 255));
|
|
}
|
|
show();
|
|
Increment();
|
|
}
|
|
|
|
// Initialize for a Theater Chase
|
|
void NeoPattern::TheaterChase(uint32_t color1, uint32_t color2, uint16_t interval, direction dir)
|
|
{
|
|
ActivePattern = THEATER_CHASE;
|
|
Interval = interval;
|
|
TotalSteps = numPixels();
|
|
Color1 = color1;
|
|
Color2 = color2;
|
|
Index = 0;
|
|
Direction = dir;
|
|
}
|
|
|
|
// Update the Theater Chase Pattern
|
|
void NeoPattern::TheaterChaseUpdate()
|
|
{
|
|
for (int i = 0; i < numPixels(); i++)
|
|
{
|
|
if ((i + Index) % 3 == 0)
|
|
{
|
|
setPixelColor(i, Color1);
|
|
}
|
|
else
|
|
{
|
|
setPixelColor(i, Color2);
|
|
}
|
|
}
|
|
show();
|
|
Increment();
|
|
}
|
|
|
|
// Initialize for a ColorWipe
|
|
void NeoPattern::ColorWipe(uint32_t color, uint8_t interval, direction dir)
|
|
{
|
|
ActivePattern = COLOR_WIPE;
|
|
Interval = interval;
|
|
TotalSteps = numPixels();
|
|
Color1 = color;
|
|
Index = 0;
|
|
Direction = dir;
|
|
}
|
|
|
|
// Update the Color Wipe Pattern
|
|
void NeoPattern::ColorWipeUpdate()
|
|
{
|
|
setPixelColor(Index, Color1);
|
|
show();
|
|
Increment();
|
|
}
|
|
|
|
// Initialize for a SCANNNER
|
|
void NeoPattern::Scanner(uint32_t color1, uint8_t interval)
|
|
{
|
|
ActivePattern = SCANNER;
|
|
Interval = interval;
|
|
TotalSteps = (numPixels() - 1) * 2;
|
|
Color1 = color1;
|
|
Index = 0;
|
|
}
|
|
|
|
// Update the Scanner Pattern
|
|
void NeoPattern::ScannerUpdate()
|
|
{
|
|
for (int i = 0; i < numPixels(); i++)
|
|
{
|
|
if (i == Index) // Scan Pixel to the right
|
|
{
|
|
setPixelColor(i, Color1);
|
|
}
|
|
else if (i == TotalSteps - Index) // Scan Pixel to the left
|
|
{
|
|
setPixelColor(i, Color1);
|
|
}
|
|
else // Fading tail
|
|
{
|
|
setPixelColor(i, DimColor(getPixelColor(i)));
|
|
}
|
|
}
|
|
show();
|
|
Increment();
|
|
}
|
|
|
|
// Initialize for a Fade
|
|
void NeoPattern::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 NeoPattern::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();
|
|
}
|
|
|
|
// Calculate 50% dimmed version of a color (used by ScannerUpdate)
|
|
uint32_t NeoPattern::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 NeoPattern::ColorSet(uint32_t color)
|
|
{
|
|
for (int i = 0; i < numPixels(); i++)
|
|
{
|
|
setPixelColor(i, color);
|
|
}
|
|
show();
|
|
}
|
|
|
|
// Returns the Red component of a 32-bit color
|
|
uint8_t NeoPattern::Red(uint32_t color)
|
|
{
|
|
return (color >> 16) & 0xFF;
|
|
}
|
|
|
|
// Returns the Green component of a 32-bit color
|
|
uint8_t NeoPattern::Green(uint32_t color)
|
|
{
|
|
return (color >> 8) & 0xFF;
|
|
}
|
|
|
|
// Returns the Blue component of a 32-bit color
|
|
uint8_t NeoPattern::Blue(uint32_t color)
|
|
{
|
|
return color & 0xFF;
|
|
}
|
|
|
|
// Input a value 0 to 255 to get a color value.
|
|
// The colours are a transition r - g - b - back to r.
|
|
uint32_t NeoPattern::Wheel(uint8_t WheelPos)
|
|
{
|
|
//if(WheelPos == 0) return Color(0,0,0);
|
|
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);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Effects from https://www.tweaking4all.com/hardware/arduino/adruino-led-strip-effects/
|
|
*/
|
|
void NeoPattern::Fire(int Cooling, int Sparking)
|
|
{
|
|
uint8_t heat[numPixels()];
|
|
int cooldown;
|
|
|
|
// Step 1. Cool down every cell a little
|
|
for (int i = 0; i < numPixels(); i++)
|
|
{
|
|
cooldown = random(0, ((Cooling * 10) / numPixels()) + 2);
|
|
|
|
if (cooldown > heat[i])
|
|
{
|
|
heat[i] = 0;
|
|
}
|
|
else
|
|
{
|
|
heat[i] = heat[i] - cooldown;
|
|
}
|
|
}
|
|
|
|
// Step 2. Heat from each cell drifts 'up' and diffuses a little
|
|
for (int k = numPixels() - 1; k >= 2; k--)
|
|
{
|
|
heat[k] = (heat[k - 1] + heat[k - 2] + heat[k - 2]) / 3;
|
|
}
|
|
|
|
// Step 3. Randomly ignite new 'sparks' near the bottom
|
|
if (random(255) < Sparking)
|
|
{
|
|
int y = random(7);
|
|
heat[y] = heat[y] + random(160, 255);
|
|
//heat[y] = random(160,255);
|
|
}
|
|
|
|
// Step 4. Convert heat to LED colors
|
|
for (int j = 0; j < numPixels(); j++)
|
|
{
|
|
setPixelHeatColor(j, heat[j]);
|
|
}
|
|
|
|
showStrip();
|
|
}
|
|
|
|
void NeoPattern::setPixelHeatColor(int Pixel, uint8_t temperature)
|
|
{
|
|
// Scale 'heat' down from 0-255 to 0-191
|
|
uint8_t t192 = round((temperature / 255.0) * 191);
|
|
|
|
// calculate ramp up from
|
|
uint8_t heatramp = t192 & 0x3F; // 0..63
|
|
heatramp <<= 2; // scale up to 0..252
|
|
|
|
// figure out which third of the spectrum we're in:
|
|
if (t192 > 0x80)
|
|
{ // hottest
|
|
setPixel(Pixel, 255, 255, heatramp);
|
|
}
|
|
else if (t192 > 0x40)
|
|
{ // middle
|
|
setPixel(Pixel, 255, heatramp, 0);
|
|
}
|
|
else
|
|
{ // coolest
|
|
setPixel(Pixel, heatramp, 0, 0);
|
|
}
|
|
}
|
|
|
|
void NeoPattern::setPixel(int Pixel, uint8_t red, uint8_t green, uint8_t blue)
|
|
{
|
|
setPixelColor(Pixel, Color(red, green, blue));
|
|
}
|
|
|
|
void NeoPattern::showStrip()
|
|
{
|
|
show();
|
|
}
|