#include <Adafruit_NeoPixel.h>

#define PIN 5            // Data pin to LED matrix (safe on ESP32-C3)
#define WIDTH 32
#define HEIGHT 8
#define NUMPIXELS (WIDTH * HEIGHT)

Adafruit_NeoPixel strip(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

// Bamboo forest inspired palette
uint32_t palette[] = {
  strip.Color(34, 139, 34),   // Forest Green
  strip.Color(50, 205, 50),   // Lime Green
  strip.Color(107, 142, 35),  // Olive Drab
  strip.Color(154, 205, 50),  // Yellow Green
  strip.Color(85, 107, 47),   // Dark Olive Green
  strip.Color(189, 183, 107), // Dark Khaki
  strip.Color(222, 184, 135), // Burlywood
  strip.Color(240, 230, 140)  // Khaki
};

const int paletteSize = sizeof(palette) / sizeof(palette[0]);

void setup() {
  strip.begin();
  strip.setBrightness(60);  // Adjust brightness for classroom use
  strip.show();             // Initialize all pixels to 'off'
}

void loop() {
  // Cycle through palette colors
  for (int j = 0; j < paletteSize; j++) {
    fillColor(palette[j]);
    delay(500);
  }
}

// Fill entire matrix with one color
void fillColor(uint32_t color) {
  for (int i = 0; i < NUMPIXELS; i++) {
    strip.setPixelColor(i, color);
  }
  strip.show();
}