imported from "final" folder

.pio/libdeps/esp01_1m/FastLED/examples/WasmScreenCoords/WasmScreenCoords.ino

@@ -0,0 +1,88 @@
+/// @file    WasmScreenCoords.ino
+/// @brief   Demonstrates screen coordinate mapping for web display
+/// @example WasmScreenCoords.ino
+///
+/// This sketch is fully compatible with the FastLED web compiler. To use it do the following:
+/// 1. Install Fastled: `pip install fastled`
+/// 2. cd into this examples page.
+/// 3. Run the FastLED web compiler at root: `fastled`
+/// 4. When the compiler is done a web page will open.
+
+#include <Arduino.h>
+#include <FastLED.h>
+
+
+#ifdef __EMSCRIPTEN__
+
+#include "fl/vector.h"
+
+
+#include "fl/json.h"
+#include "fl/slice.h"
+#include "fl/screenmap.h"
+#include "fl/math_macros.h"
+
+using fl::vec2f;
+using fl::vector;
+
+
+#define LED_PIN 3
+#define BRIGHTNESS 96
+#define COLOR_ORDER GRB
+#define NUM_LEDS 256
+
+CRGB leds[NUM_LEDS];
+CRGB leds2[NUM_LEDS];
+
+
+void make_map(int stepx, int stepy, int num, fl::vector<vec2f>* _map) {
+    float x = 0;
+    float y = 0;
+    fl::vector<vec2f>& map = *_map;
+    for (int16_t i = 0; i < num; i++) {
+        map.push_back(vec2f{x, y});
+        x += stepx;
+        y += stepy;
+    }
+}
+
+void setup() {
+    for (CRGB& c : leds) {
+        c = CRGB::Blue;
+    }
+    for (CRGB& c : leds2) {
+        c = CRGB::Red;
+    }
+    FastLED.setBrightness(255);
+    fl::vector<vec2f> map;
+    make_map(1, 1, NUM_LEDS, &map);
+    fl::ScreenMap screenmap = fl::ScreenMap(map.data(), map.size());
+
+    fl::vector<fl::vec2f> map2;
+    make_map(-1, -1, NUM_LEDS, &map2);
+    fl::ScreenMap screenmap2 = fl::ScreenMap(map2.data(), map2.size());
+
+    FastLED.addLeds<WS2811, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS)
+        .setScreenMap(screenmap);
+
+    FastLED.addLeds<WS2811, LED_PIN+1, COLOR_ORDER>(leds2, NUM_LEDS)
+        .setScreenMap(screenmap2);
+}
+
+void loop() {
+    FastLED.show();
+}
+
+
+#else
+
+void setup() {
+    Serial.begin(115200);
+    Serial.println("setup");
+}
+
+void loop() {
+    Serial.println("loop");
+}
+
+#endif  // __EMSCRIPTEN__