103 lines
2.8 KiB
C++
103 lines
2.8 KiB
C++
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/*
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This is a 1D wave simluation!
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This demo is best viewed using the FastLED compiler.
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Windows/MacOS binaries: https://github.com/FastLED/FastLED/releases
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Python
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Install: pip install fastled
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Run: fastled <this sketch directory>
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This will compile and preview the sketch in the browser, and enable
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all the UI elements you see below.
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*/
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#include "fl/math_macros.h"
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#include "fl/ui.h"
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#include "fl/wave_simulation.h"
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#include <Arduino.h>
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#include <FastLED.h>
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using namespace fl;
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#define NUM_LEDS 100
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#define IS_SERPINTINE true // Type of matrix display, you probably have this.
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CRGB leds[NUM_LEDS];
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UITitle title("Wave Demo");
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UIDescription description("Shows the use of the Wave1D effect.");
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UIButton button("Trigger");
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WaveSimulation1D waveSim(NUM_LEDS, SuperSample::SUPER_SAMPLE_2X);
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UISlider slider("Speed", 0.18f, 0.0f, 1.0f);
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UISlider extraFrames("Extra Frames", 1.0f, 0.0f, 8.0f, 1.0f);
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UISlider dampening("Dampening", 6.0f, 0.0f, 10.0f, 0.1f);
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UICheckbox halfDuplex("Half Duplex", false);
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UISlider superSample("SuperSampleExponent", 0.f, 0.f, 3.f, 1.f);
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void setup() {
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Serial.begin(115200);
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// No ScreenMap necessary for strips.
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FastLED.addLeds<NEOPIXEL, 2>(leds, NUM_LEDS);
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}
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void triggerRipple(WaveSimulation1D &waveSim, int x) {
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for (int i = x - 1; i <= x + 1; i++) {
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if (i < 0 || i >= NUM_LEDS)
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continue;
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waveSim.setf(i, -1.f);
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}
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}
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// Wave simulation looks better when you render at a higher resolution then
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// downscale the result to the display resolution.
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SuperSample getSuperSample() {
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switch (int(superSample)) {
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case 0:
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return SuperSample::SUPER_SAMPLE_NONE;
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case 1:
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return SuperSample::SUPER_SAMPLE_2X;
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case 2:
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return SuperSample::SUPER_SAMPLE_4X;
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case 3:
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return SuperSample::SUPER_SAMPLE_8X;
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default:
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return SuperSample::SUPER_SAMPLE_NONE;
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}
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}
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void loop() {
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// Allow the waveSimulator to respond to the current slider value each frame.
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waveSim.setSpeed(slider);
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waveSim.setDampening(dampening);
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// Pretty much you always want half duplex to be true, otherwise you get a gray
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// wave effect that doesn't look good.
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waveSim.setHalfDuplex(halfDuplex);
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waveSim.setSuperSample(getSuperSample());
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static int x = 0;
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if (button.clicked()) {
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// If button click then select a random position in the wave.
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x = random(NUM_LEDS);
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}
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if (button.isPressed()) {
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FASTLED_WARN("Button is pressed at " << x);
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triggerRipple(waveSim, x);
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}
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waveSim.update();
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for (int i = 0; i < extraFrames.value(); i++) {
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waveSim.update();
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}
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for (int x = 0; x < NUM_LEDS; x++) {
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// float value = waveSim.get(x);
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uint8_t value8 = waveSim.getu8(x);
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leds[x] = CRGB(value8, value8, value8);
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}
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FastLED.show();
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}
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