#include <Adafruit_CircuitPlayground.h>
#include <Adafruit_Circuit_Playground.h>

uint8_t levels[5][2] = {
  { 4, 5 },
  { 3, 6 },
  { 2, 7 },
  { 1, 8 },
  { 0, 9 },
};

int pixels = 0;

#define COLOR_MAX 0xFF0000
#define COLOR_MID 0xFFFF00
#define COLOR_LOW 0x00FF00

#define MAX_LOUD 50


void setup() {
  CircuitPlayground.begin();
  CircuitPlayground.setBrightness(1);
}

void loop() {
  float value = CircuitPlayground.mic.soundPressureLevel(10) - 50;
  float level_size = MAX_LOUD / 6;
  if (value < level_size) {
    smoothing();
  } else {
    for (int p = 2; p <= 6; p++) {
      if (value < level_size * p) {
        lights(p - 1);
        pixels = p - 1;
        break;
      }
    }
  }

  delay(90);
}

void lights(int i) {
  float color = 0xFFFFFF;
  if (i == 5) {
    color = COLOR_MAX;
    for (int p = 0; p < 10; p++) {
      CircuitPlayground.setPixelColor(p, color);
    }
  } else {
    for (int p = 0; p <= 5; p++) {
      if (p < i) {
        if (p > 1) {
          color = COLOR_MID;
        } else {
          color = COLOR_LOW;
        }
        CircuitPlayground.setPixelColor(levels[p][0], color);
        CircuitPlayground.setPixelColor(levels[p][1], color);
      } else {
        CircuitPlayground.setPixelColor(levels[p][0], 0x000000);
        CircuitPlayground.setPixelColor(levels[p][1], 0x000000);
      }
    }

  }
}

void smoothing() {
  CircuitPlayground.setPixelColor(levels[pixels][0], 0x000000);
  CircuitPlayground.setPixelColor(levels[pixels][1], 0x000000);
  pixels--;
}