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Diffstat (limited to 'Библиотеки/FastLED-master/examples/NoisePlusPalette/NoisePlusPalette.ino')
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diff --git a/Библиотеки/FastLED-master/examples/NoisePlusPalette/NoisePlusPalette.ino b/Библиотеки/FastLED-master/examples/NoisePlusPalette/NoisePlusPalette.ino new file mode 100644 index 0000000..4e06bdd --- /dev/null +++ b/Библиотеки/FastLED-master/examples/NoisePlusPalette/NoisePlusPalette.ino @@ -0,0 +1,273 @@ +#include<FastLED.h> + +#define LED_PIN 3 +#define BRIGHTNESS 96 +#define LED_TYPE WS2811 +#define COLOR_ORDER GRB + +const uint8_t kMatrixWidth = 16; +const uint8_t kMatrixHeight = 16; +const bool kMatrixSerpentineLayout = true; + + +// This example combines two features of FastLED to produce a remarkable range of +// effects from a relatively small amount of code. This example combines FastLED's +// color palette lookup functions with FastLED's Perlin/simplex noise generator, and +// the combination is extremely powerful. +// +// You might want to look at the "ColorPalette" and "Noise" examples separately +// if this example code seems daunting. +// +// +// The basic setup here is that for each frame, we generate a new array of +// 'noise' data, and then map it onto the LED matrix through a color palette. +// +// Periodically, the color palette is changed, and new noise-generation parameters +// are chosen at the same time. In this example, specific noise-generation +// values have been selected to match the given color palettes; some are faster, +// or slower, or larger, or smaller than others, but there's no reason these +// parameters can't be freely mixed-and-matched. +// +// In addition, this example includes some fast automatic 'data smoothing' at +// lower noise speeds to help produce smoother animations in those cases. +// +// The FastLED built-in color palettes (Forest, Clouds, Lava, Ocean, Party) are +// used, as well as some 'hand-defined' ones, and some proceedurally generated +// palettes. + + +#define NUM_LEDS (kMatrixWidth * kMatrixHeight) +#define MAX_DIMENSION ((kMatrixWidth>kMatrixHeight) ? kMatrixWidth : kMatrixHeight) + +// The leds +CRGB leds[kMatrixWidth * kMatrixHeight]; + +// The 16 bit version of our coordinates +static uint16_t x; +static uint16_t y; +static uint16_t z; + +// We're using the x/y dimensions to map to the x/y pixels on the matrix. We'll +// use the z-axis for "time". speed determines how fast time moves forward. Try +// 1 for a very slow moving effect, or 60 for something that ends up looking like +// water. +uint16_t speed = 20; // speed is set dynamically once we've started up + +// Scale determines how far apart the pixels in our noise matrix are. Try +// changing these values around to see how it affects the motion of the display. The +// higher the value of scale, the more "zoomed out" the noise iwll be. A value +// of 1 will be so zoomed in, you'll mostly see solid colors. +uint16_t scale = 30; // scale is set dynamically once we've started up + +// This is the array that we keep our computed noise values in +uint8_t noise[MAX_DIMENSION][MAX_DIMENSION]; + +CRGBPalette16 currentPalette( PartyColors_p ); +uint8_t colorLoop = 1; + +void setup() { + delay(3000); + LEDS.addLeds<LED_TYPE,LED_PIN,COLOR_ORDER>(leds,NUM_LEDS); + LEDS.setBrightness(BRIGHTNESS); + + // Initialize our coordinates to some random values + x = random16(); + y = random16(); + z = random16(); +} + + + +// Fill the x/y array of 8-bit noise values using the inoise8 function. +void fillnoise8() { + // If we're runing at a low "speed", some 8-bit artifacts become visible + // from frame-to-frame. In order to reduce this, we can do some fast data-smoothing. + // The amount of data smoothing we're doing depends on "speed". + uint8_t dataSmoothing = 0; + if( speed < 50) { + dataSmoothing = 200 - (speed * 4); + } + + for(int i = 0; i < MAX_DIMENSION; i++) { + int ioffset = scale * i; + for(int j = 0; j < MAX_DIMENSION; j++) { + int joffset = scale * j; + + uint8_t data = inoise8(x + ioffset,y + joffset,z); + + // The range of the inoise8 function is roughly 16-238. + // These two operations expand those values out to roughly 0..255 + // You can comment them out if you want the raw noise data. + data = qsub8(data,16); + data = qadd8(data,scale8(data,39)); + + if( dataSmoothing ) { + uint8_t olddata = noise[i][j]; + uint8_t newdata = scale8( olddata, dataSmoothing) + scale8( data, 256 - dataSmoothing); + data = newdata; + } + + noise[i][j] = data; + } + } + + z += speed; + + // apply slow drift to X and Y, just for visual variation. + x += speed / 8; + y -= speed / 16; +} + +void mapNoiseToLEDsUsingPalette() +{ + static uint8_t ihue=0; + + for(int i = 0; i < kMatrixWidth; i++) { + for(int j = 0; j < kMatrixHeight; j++) { + // We use the value at the (i,j) coordinate in the noise + // array for our brightness, and the flipped value from (j,i) + // for our pixel's index into the color palette. + + uint8_t index = noise[j][i]; + uint8_t bri = noise[i][j]; + + // if this palette is a 'loop', add a slowly-changing base value + if( colorLoop) { + index += ihue; + } + + // brighten up, as the color palette itself often contains the + // light/dark dynamic range desired + if( bri > 127 ) { + bri = 255; + } else { + bri = dim8_raw( bri * 2); + } + + CRGB color = ColorFromPalette( currentPalette, index, bri); + leds[XY(i,j)] = color; + } + } + + ihue+=1; +} + +void loop() { + // Periodically choose a new palette, speed, and scale + ChangePaletteAndSettingsPeriodically(); + + // generate noise data + fillnoise8(); + + // convert the noise data to colors in the LED array + // using the current palette + mapNoiseToLEDsUsingPalette(); + + LEDS.show(); + // delay(10); +} + + + +// There are several different palettes of colors demonstrated here. +// +// FastLED provides several 'preset' palettes: RainbowColors_p, RainbowStripeColors_p, +// OceanColors_p, CloudColors_p, LavaColors_p, ForestColors_p, and PartyColors_p. +// +// Additionally, you can manually define your own color palettes, or you can write +// code that creates color palettes on the fly. + +// 1 = 5 sec per palette +// 2 = 10 sec per palette +// etc +#define HOLD_PALETTES_X_TIMES_AS_LONG 1 + +void ChangePaletteAndSettingsPeriodically() +{ + uint8_t secondHand = ((millis() / 1000) / HOLD_PALETTES_X_TIMES_AS_LONG) % 60; + static uint8_t lastSecond = 99; + + if( lastSecond != secondHand) { + lastSecond = secondHand; + if( secondHand == 0) { currentPalette = RainbowColors_p; speed = 20; scale = 30; colorLoop = 1; } + if( secondHand == 5) { SetupPurpleAndGreenPalette(); speed = 10; scale = 50; colorLoop = 1; } + if( secondHand == 10) { SetupBlackAndWhiteStripedPalette(); speed = 20; scale = 30; colorLoop = 1; } + if( secondHand == 15) { currentPalette = ForestColors_p; speed = 8; scale =120; colorLoop = 0; } + if( secondHand == 20) { currentPalette = CloudColors_p; speed = 4; scale = 30; colorLoop = 0; } + if( secondHand == 25) { currentPalette = LavaColors_p; speed = 8; scale = 50; colorLoop = 0; } + if( secondHand == 30) { currentPalette = OceanColors_p; speed = 20; scale = 90; colorLoop = 0; } + if( secondHand == 35) { currentPalette = PartyColors_p; speed = 20; scale = 30; colorLoop = 1; } + if( secondHand == 40) { SetupRandomPalette(); speed = 20; scale = 20; colorLoop = 1; } + if( secondHand == 45) { SetupRandomPalette(); speed = 50; scale = 50; colorLoop = 1; } + if( secondHand == 50) { SetupRandomPalette(); speed = 90; scale = 90; colorLoop = 1; } + if( secondHand == 55) { currentPalette = RainbowStripeColors_p; speed = 30; scale = 20; colorLoop = 1; } + } +} + +// This function generates a random palette that's a gradient +// between four different colors. The first is a dim hue, the second is +// a bright hue, the third is a bright pastel, and the last is +// another bright hue. This gives some visual bright/dark variation +// which is more interesting than just a gradient of different hues. +void SetupRandomPalette() +{ + currentPalette = CRGBPalette16( + CHSV( random8(), 255, 32), + CHSV( random8(), 255, 255), + CHSV( random8(), 128, 255), + CHSV( random8(), 255, 255)); +} + +// This function sets up a palette of black and white stripes, +// using code. Since the palette is effectively an array of +// sixteen CRGB colors, the various fill_* functions can be used +// to set them up. +void SetupBlackAndWhiteStripedPalette() +{ + // 'black out' all 16 palette entries... + fill_solid( currentPalette, 16, CRGB::Black); + // and set every fourth one to white. + currentPalette[0] = CRGB::White; + currentPalette[4] = CRGB::White; + currentPalette[8] = CRGB::White; + currentPalette[12] = CRGB::White; + +} + +// This function sets up a palette of purple and green stripes. +void SetupPurpleAndGreenPalette() +{ + CRGB purple = CHSV( HUE_PURPLE, 255, 255); + CRGB green = CHSV( HUE_GREEN, 255, 255); + CRGB black = CRGB::Black; + + currentPalette = CRGBPalette16( + green, green, black, black, + purple, purple, black, black, + green, green, black, black, + purple, purple, black, black ); +} + + +// +// Mark's xy coordinate mapping code. See the XYMatrix for more information on it. +// +uint16_t XY( uint8_t x, uint8_t y) +{ + uint16_t i; + if( kMatrixSerpentineLayout == false) { + i = (y * kMatrixWidth) + x; + } + if( kMatrixSerpentineLayout == true) { + if( y & 0x01) { + // Odd rows run backwards + uint8_t reverseX = (kMatrixWidth - 1) - x; + i = (y * kMatrixWidth) + reverseX; + } else { + // Even rows run forwards + i = (y * kMatrixWidth) + x; + } + } + return i; +} + |