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libraries/FastLED/examples/XYPath/direct.h

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+
+
+/*
+This demo is best viewed using the FastLED compiler.
+Install: pip install fastled
+Run: fastled <this sketch directory>
+This will compile and preview the sketch in the browser, and enable
+all the UI elements you see below.
+*/
+
+#include <Arduino.h>
+#include <FastLED.h>
+
+#include "fl/draw_visitor.h"
+#include "fl/math_macros.h"
+#include "fl/raster.h"
+#include "fl/time_alpha.h"
+#include "fl/ui.h"
+#include "fl/xypath.h"
+#include "fx/time.h"
+#include "fl/leds.h"
+
+#include "src/xypaths.h"
+
+// Sketch.
+#include "src/wave.h"
+#include "src/xypaths.h"
+#include "fl/function.h"
+
+#include <assert.h>
+
+using namespace fl;
+
+#define HEIGHT 64
+#define WIDTH 64
+#define NUM_LEDS ((WIDTH) * (HEIGHT))
+#define IS_SERPINTINE true
+#define TIME_ANIMATION 1000 // ms
+
+// CRGB leds[NUM_LEDS];
+
+LedsXY<WIDTH, HEIGHT> leds;
+XYMap xyMap(WIDTH, HEIGHT, IS_SERPINTINE);
+UITitle title("Simple control of an xy path");
+UIDescription description("This is more of a test for new features.");
+
+// UIButton trigger("My Trigger");
+UISlider offset("Offset", 0.0f, 0.0f, 1.0f, 0.01f);
+UISlider steps("Steps", 100.0f, 1.0f, 200.0f, 1.0f);
+UISlider length("Length", 1.0f, 0.0f, 1.0f, 0.01f);
+
+
+XYPathPtr heartPath = XYPath::NewHeartPath(WIDTH, HEIGHT);
+
+
+
+void setup() {
+    Serial.begin(115200);
+    auto screenmap = xyMap.toScreenMap();
+    screenmap.setDiameter(.2);
+    FastLED.addLeds<NEOPIXEL, 2>(leds, NUM_LEDS).setScreenMap(screenmap);
+
+}
+
+
+void loop() {
+    fl::clear(leds);
+
+    // FASTLED_ASSERT(false, "This is a test");
+
+    // leds(x,y) = CRGB(255, 0, 0);
+    float from = offset;
+    float to = length.value() + offset.value();
+
+    heartPath->drawColor(CRGB(255, 0, 0), from, to, &leds, steps.as_int());
+    
+
+    FastLED.show();
+}