#define AREA_1_RED_PIN 17
#define AREA_1_GREEN_PIN 16
#define AREA_1_BLUE_PIN 4

void setupPins(){
  pinMode(AREA_1_RED_PIN, OUTPUT);
  pinMode(AREA_1_GREEN_PIN, OUTPUT);
  pinMode(AREA_1_BLUE_PIN, OUTPUT);

  analogWrite(AREA_1_RED_PIN, 0);
  analogWrite(AREA_1_GREEN_PIN, 0);
  analogWrite(AREA_1_BLUE_PIN, 0);
}

void setup() {
  // put your setup code here, to run once:
  setupPins();
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  
}

float easeInOut(float i){
  return i * i * (3.0f - 2.0f * i);
}

void applyCurve(int durationMillis){
  int i, r, g, b = 0;
  float fps = 60.0;
  int startMillis = millis();
  int endMillis = startMillis + durationMillis;
  int current = millis();

  int lowerBound = 0;
  int upperBound = 255;
  int delta      = upperBound - lowerBound;
  char* buffer[100];
  while(current < endMillis){    
    float curved = easeInOut( (current - lowerBound) / durationMillis * 1.0);
    int value = floor(lowerBound + delta * curved);
    Serial.print("curved: ");
    Serial.print(curved);
    Serial.print(" value: ");
    Serial.print(value);
    Serial.println("");
    analogWrite(AREA_1_RED_PIN, value);
    analogWrite(AREA_1_GREEN_PIN, value);
    analogWrite(AREA_1_BLUE_PIN, value);

    delay(floor(durationMillis / fps));
    current = millis();
  }
}

void loop() {
  // put your main code here, to run repeatedly:
  applyCurve(5000);
  delay(3000); // this speeds up the simulation
}