/*
 * This code is for any slave microcontroller that will only receive information
 * FROM the master, this is DIFFERENT naming convention from the i2c.md file.
 */
#include <FastLED.h>

int len = 6, numStrips = 1;
int input[16] = {1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,}, ledState[16];
int count[16], state;
struct CRGB leds[16][6], colour;
bool first = true;

bool isRed(int x) {
  if (x <= 7) return true;
  return false;
}

bool isPaddle(int x) {
  if (x <= 5 || (x >= 8 && x <= 13)) return true;
  return false;
}

bool isBumper(int x) {
  if (x == 6 || x == 7 || x == 14 || x == 15) return true;
  return false;
}

void sequentialLed(int i) {  // must set led state back to 0 after duration
  for (int j = 0; j < len; j++) {
    if (j == count[i]) {
      leds[i][j] = colour;
    } else {
      leds[i][j] = CRGB(255, 255, 255);
    }
  }

  count[i]++;

  if (count[i] >= len) {
    ledState[i] = 0;
  }
}

void blinkLed(int i) {
  if (count[i] % 2 == 0) {
    for (int j = 0; j < len; j++) {
      leds[i][j] = colour;
    }
  } else {
    for (int j = 0; j < len; j++) {
      leds[i][j] = CRGB(255, 255, 255);
    }
  }

  count[i]++;

  if (count[i] >= 5) {
    ledState[i] = 0;
  }
}

void idleLed(int i) {
  for (int j = 0; j < len; j++) {
    leds[i][j] = CRGB(0, 255, 0);
  }
  ledState[i] = 0;
}

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);

  LEDS.addLeds<WS2812B, 6, GRB>(leds[0], len);

  for (int i = 0; i < len; i++) {
    ledState[i] = 0;
    count[i] = 0;
  }

  state = 1;

  Serial.begin(9600);
}

void loop() {
  digitalWrite(LED_BUILTIN, state);

  if (!first) input[0] = 0;
  if (first) first = false;

  // Perform Normal Function Here
  if (state == 0) {  // game idle

  } else if (state == 1) {  // game ongoing
    for (int i = 0; i < numStrips; i++) {
      if (isRed(i)) {
        colour = CRGB(255, 0, 0);
      } else {
        colour = CRGB(0, 0, 255);
      }

      if (input[i] == 1) {
        ledState[i] = 1;
        count[i] = 0;
      }

      if (ledState[i] == 1) {
        if (isPaddle(i)) {
          sequentialLed(i);
        } else if (isBumper(i)) {
          blinkLed(i);
        } else {  // spinners and border
        }
      } else {
        idleLed(i);
      }
    }
  } else {  // other
  }

  FastLED.show();
  delay(500);
}