esp-pixelprojektor/pixelprojektor/NeoPatterns.cpp

294 lines
7.6 KiB
C++

#include "NeoPatterns.h"
NeoPatterns::NeoPatterns(uint16_t pixels, uint8_t pin, uint8_t type, void (*callback)()) :
Adafruit_NeoPixel(pixels, pin, type)
{
OnComplete = callback;
}
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 NONE:
break;
default:
break;
}
}
}
void NeoPatterns::Increment()
{
if (Direction == FORWARD)
{
Index++;
if (Index >= TotalSteps)
{
Index = 0;
if (OnComplete != NULL)
{
OnComplete(); // call the comlpetion callback
}
}
}
else // Direction == REVERSE
{
--Index;
if (Index <= 0)
{
Index = TotalSteps-1;
if (OnComplete != NULL)
{
OnComplete(); // call the comlpetion callback
}
}
}
}
void NeoPatterns::Reverse(){
if (Direction == FORWARD)
{
Direction = REVERSE;
Index = TotalSteps-1;
}
else
{
Direction = FORWARD;
Index = 0;
}
}
void NeoPatterns::None(){
if(ActivePattern != NONE) {
clear();
show();
}
ActivePattern = NONE;
}
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< numPixels(); i++)
{
setPixelColor(i, Wheel(((i * 256 / numPixels()) + Index) & 255));
}
show();
Increment();
}
void NeoPatterns::TheaterChase(uint32_t color1, uint32_t color2, uint8_t interval, direction dir){
ActivePattern = THEATER_CHASE;
Interval = interval;
TotalSteps = numPixels();
Color1 = color1;
Color2 = color2;
Index = 0;
Direction = dir;
}
void NeoPatterns::TheaterChaseUpdate(){
for(int i=0; i< numPixels(); i++)
{
if ((i + Index) % 3 == 0)
{
setPixelColor(i, Color1);
}
else
{
setPixelColor(i, Color2);
}
}
show();
Increment();
}
void NeoPatterns::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 NeoPatterns::ColorWipeUpdate()
{
setPixelColor(Index, Color1);
show();
Increment();
}
// Initialize for a SCANNNER
void NeoPatterns::Scanner(uint32_t color1, uint8_t interval, bool colorful)
{
ActivePattern = SCANNER;
Interval = interval;
TotalSteps = (numPixels() - 1) * 2;
Color1 = color1;
Index = 0;
wPos = 0;
this->colorful = colorful;
}
// Update the Scanner Pattern
void NeoPatterns::ScannerUpdate()
{
if(colorful) {
Color1 = Wheel(wPos);
if(wPos >= 255) {
wPos =0;
}
else {
wPos++;
}
}
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();
}
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::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 < numPixels(); i++)
{
setPixelColor(i, color);
}
show();
}
// 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 colours 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);
}
}