/*
Adapted from sutaburosu's AA_lines.ino code. Many thanks!
*/
#include <FastLED.h>
#define WIDTH 64
#define HEIGHT 26
#define NUM_LEDS (WIDTH * HEIGHT)
CRGB leds[NUM_LEDS + 1];
CRGBPalette16 rainbowPalette = {
0xFF0000, 0x7F0000, 0xAB5500, 0x552A00, 0xABAB00, 0x555500, 0x00FF00, 0x007F00,
0x00AB55, 0x00552A, 0x0000FF, 0x00007F, 0x5500AB, 0x2A0055, 0xAB0055, 0x55002A
};
CRGBPalette16 greenStripe = {
0x00FF00, 0x00FF00, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000,
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000
};
CRGBPalette16 yellowStripe = {
0xFFFF00, 0xFFFF00, 0xFFFF00, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000,
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000
};
CRGBPalette16 fadeFactorPalette = {
0xFF0000, 0xFF0000, 0xFF0000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000,
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000
};
CRGBPalette16 whiteStripe = {
0xFFFFFF, 0xFFFFFF, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000,
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000
};
typedef enum {
RADAR,
RADIATE,
PAUSE,
NONE
} FixMode ;
boolean _twist = false;
void setup()
{
FastLED.addLeds<NEOPIXEL, 19>(leds, NUM_LEDS);
Serial.begin(115200);
// Serial.print(sizeof(CRGB));
}
// This is probably not good programming, idk.
#define ENABLE_CROSSFADE true
#define DISABLE_CROSSFADE false
#define ANIM_FOREGROUND true
#define ANIM_BACKGROUND false
int ring_radius = 0;
void loop()
{
int tslider = analogRead(33); // pot 1
// int tslider = beatsin16(30, 512, 800);
int rslider = analogRead(35); // pot 2
int lslider = analogRead(36); // pot 3
float bpm = map(tslider,0,1024,0.0,120.0);
// float rotationSpeedFloat = rotationSpeed;
float mappedRSlider = fmap(rslider,0,1024,-8.0,8.0);
int mappedLSlider = map(lslider,0,1024,0,20);
sup(mappedRSlider,bpm,mappedLSlider,LavaColors_p, LINEARBLEND,ANIM_BACKGROUND,DISABLE_CROSSFADE);
// sup(mappedRSlider,bpm,mappedLSlider,whiteStripe, LINEARBLEND,ANIM_FOREGROUND,DISABLE_CROSSFADE);
// EVERY_N_SECONDS(3) {
// Serial.println("pulse");
// ring_radius = 1;
// }
// EVERY_N_MILLISECONDS(10) {
// if( ring_radius >= 1) {
// ring_radius++;
// for (byte y = 0; y < HEIGHT; y++) {
// leds[XY(ring_radius, y)] = CRGB::White;
// }
// if( ring_radius == WIDTH) {
// ring_radius = 0;
// }
// // Serial.println(ring_radius);
// }
// }
FastLED.show();
}
uint16_t XY(uint8_t x, uint8_t y) {
if (x >= WIDTH) return NUM_LEDS;
if (y >= HEIGHT) return NUM_LEDS;
return y * WIDTH + x;
}
void crossfade(CRGB *a, const CRGB *b, uint8_t amount) {
uint8_t rev = 255 - amount;
a->red = (a->red * amount + b->red * rev) >> 8;
a->green = (a->green * amount + b->green * rev) >> 8;
a->blue = (a->blue * amount + b->blue * rev) >> 8;
}
void qaddColors(CRGB *a, const CRGB *b) {
a->red = qadd8(a->red,b->red);
a->green = qadd8(a->green,b->green);
a->blue = qadd8(a->blue,b->blue);
}
// With thanks to Steve Dommett; github.com/sutaburosu
void sup(float rotationSpeed, float bpm, uint8_t lineWidth, CRGBPalette16 palette, TBlendType blendType, boolean foreground, boolean enableCrossfade) {
uint32_t yHueDelta ;
uint32_t xHueDelta ;
static uint32_t lastMillis = 32767; // int16_t 32767/2 (for rotationspeed=0 test)
static uint8_t lastIndex4bit = 15;
float rotationSpeedFloat = fmap((float)rotationSpeed,(float)0,(float)255,0.0,60.0); // Between -6 and 6
// float rotationSpeedFloat = rotationSpeed;
// float rotationSpeedFloat = 0.0;
FixMode fixMode = NONE;
uint32_t ms = millis();
if( fixMode == RADIATE ){
lastMillis = 32767; // yHueDelta = sin16(32767) = 0
rotationSpeedFloat = 0.0;
}
if( fixMode == RADAR ){
lastMillis = 16383; // xHueDelta = cos16(16383) = 0
rotationSpeedFloat = 0.0;
}
// (abs(sin(x))^3 * sin(x)
// https://math.stackexchange.com/questions/4014462/translating-a-sin-curve-into-one-that-lingers-on-its-maximums-longer
if( rotationSpeedFloat != 0.0 ) {
yHueDelta = (int32_t)sin16((int16_t)round(ms * rotationSpeedFloat)) * lineWidth;
xHueDelta = (int32_t)cos16((int16_t)round(ms * rotationSpeedFloat)) * lineWidth;
lastMillis = ms;
} else {
yHueDelta = (int32_t)sin16(lastMillis) * lineWidth;
xHueDelta = (int32_t)cos16(lastMillis) * lineWidth;
}
int32_t startHue = beat88(round(bpm * 64));
startHue = startHue << 7 ;
int32_t lineStartHue = startHue - (HEIGHT + 2) / 2 * yHueDelta;
// Serial.print(ms);
// Serial.print(" * ");
// Serial.print(mappedTranslationSpeed);
// Serial.print(" = ");
// Serial.print(startHue);
// Serial.print(" linestart: ");
// Serial.print(lineStartHue);
// Serial.print(" linestart>>7: ");
// Serial.print(lineStartHue >> 7);
for (byte y = 0; y < HEIGHT; y++) {
uint32_t pixelHue = lineStartHue - (64 + 2) / 2 * xHueDelta;
lineStartHue += yHueDelta;
// Serial.print(ms);
// Serial.print(" pixHue32: ");
// Serial.print(" ");
// Serial.print(pixelHue);
// Serial.print(" index16: ");
uint16_t myIndex = pixelHue >> 7;
// Serial.print(myIndex);
uint8_t index_4bit = myIndex >> 12;
// Serial.print(" index4: ");
// if( lastIndex4bit != index_4bit ) {
// Serial.print(ms - lastMark);
// Serial.print(" ");
// Serial.print(index_4bit);
// Serial.println();
// lastIndex4bit = index_4bit;
// lastMark = ms;
// }
for (byte x = 0; x < WIDTH; x++) {
leds[XY(x, y)] = ColorFromPaletteExtended(palette, pixelHue >> 7, 255, blendType);
pixelHue += xHueDelta;
}
// if( y == 0 ) {
// uint16_t myIndex = pixelHue >> 7;
// uint8_t index_4bit = myIndex >> 12;
// if( index_4bit == 0 && !mark) {
// mark = true; // flag!
// uint32_t currentPaletteInterval = millis() - lastMark;
// Serial.println("Mark! Interval: " + (String)currentPaletteInterval + " lastMark: " + (String)lastMark);
// lastMark = millis();
// } else if( index_4bit != 0 && mark ) {
// mark = false; // reset flag
// }
// Serial.println(index_4bit);
// }
// if( ColorFromPaletteExtended(palette, pixelHue >> 7, 255, blendType) == CRGB::White ) {
// Serial.println(pixelHue >> 7);
// }
}
delay(2);
}
// from: https://github.com/FastLED/FastLED/pull/202
CRGB ColorFromPaletteExtended(const CRGBPalette16& pal, uint16_t index, uint8_t brightness, TBlendType blendType) {
// Extract the four most significant bits of the index as a palette index.
uint8_t index_4bit = (index >> 12);
// Calculate the 8-bit offset from the palette index.
uint8_t offset = (uint8_t)(index >> 4);
// Get the palette entry from the 4-bit index
const CRGB* entry = &(pal[0]) + index_4bit;
uint8_t red1 = entry->red;
uint8_t green1 = entry->green;
uint8_t blue1 = entry->blue;
uint8_t blend = offset && (blendType != NOBLEND);
if (blend) {
if (index_4bit == 15) {
entry = &(pal[0]);
} else {
entry++;
}
// Calculate the scaling factor and scaled values for the lower palette value.
uint8_t f1 = 255 - offset;
red1 = scale8_LEAVING_R1_DIRTY(red1, f1);
green1 = scale8_LEAVING_R1_DIRTY(green1, f1);
blue1 = scale8_LEAVING_R1_DIRTY(blue1, f1);
// Calculate the scaled values for the neighbouring palette value.
uint8_t red2 = entry->red;
uint8_t green2 = entry->green;
uint8_t blue2 = entry->blue;
red2 = scale8_LEAVING_R1_DIRTY(red2, offset);
green2 = scale8_LEAVING_R1_DIRTY(green2, offset);
blue2 = scale8_LEAVING_R1_DIRTY(blue2, offset);
cleanup_R1();
// These sums can't overflow, so no qadd8 needed.
red1 += red2;
green1 += green2;
blue1 += blue2;
}
if (brightness != 255) {
// nscale8x3_video(red1, green1, blue1, brightness);
nscale8x3(red1, green1, blue1, brightness);
}
return CRGB(red1, green1, blue1);
}
float fmap(float x, float a, float b, float c, float d)
{
float f=x/(b-a)*(d-c)+c;
return f;
}
String uint64ToString(uint64_t input) {
String result = "";
uint8_t base = 10;
do {
char c = input % base;
input /= base;
if (c < 10)
c +='0';
else
c += 'A' - 10;
result = c + result;
} while (input);
return result;
}