//---------------------- SETUP ----------------------------------//
const int pin_red = 12;
const int pin_green = 11;
const int pin_blue = 10;
const int pin_hielo = 9;
const int pin_pink = 8;
const int pin_botton_1 = 5;
const int pin_botton_2 = 4;
const int pin_botton_3 = 3;

const int redTon = 200;
const int redToff = 300;
const int greenTon = 4000;
const int greenToff = 4000;
const int hieloTon = 3200;
const int hieloToff = 4800;
const int pinkTon = 200;
const int pinkToff = 200;

byte red = LOW;
byte green = LOW;
byte blue = LOW;
byte hielo = LOW;
byte pink = LOW;
byte boton_1 = LOW;
byte boton_2 = LOW;
byte boton_3 = LOW;

unsigned long time = 0;
unsigned long time_red = 0;
unsigned long time_green = 0;
unsigned long time_hielo = 0;
unsigned long time_pink = 0;

void setup() {

pinMode(pin_red, OUTPUT);
pinMode(pin_green, OUTPUT);
pinMode(pin_blue, OUTPUT);
pinMode(pin_hielo, OUTPUT);
pinMode(pin_pink, OUTPUT);
pinMode(pin_botton_1, INPUT_PULLUP);
pinMode(pin_botton_2, INPUT_PULLUP);
pinMode(pin_botton_3, INPUT_PULLUP);

}

//---------------------- LOOP ----------------------------------//
void loop() {

  time = millis();

  update_red();
  // update_green();
  // update_blue();
  // update_hielo();
  // update_pink();
  write_leds();
}

void write_leds(){

  digitalWrite(pin_red, red);
  digitalWrite(pin_green, green);
  digitalWrite(pin_blue, blue);
  digitalWrite(pin_hielo, hielo);
  digitalWrite(pin_pink, pink);

}

void update_red() {

  if (red == LOW) {
    if (time - time_red >= redToff) {
       red = HIGH;
       // time when this process is done:
       time_red += redTon;
    }
  }
  else {
    if (time - time_red >= redTon) {
       red = LOW;
       // time when this process is done:
       time_red += redToff;
    } 
  }    
}

void update_green(){

}

void update_blue(){

}

void update_hielo(){

}

void update_pink(){

}

// void readButton() {
//   if (millis() - previousButtonMillis >= buttonInterval) {

//     if (digitalRead(buttonPin) == LOW) {
//       buttonLed_State = ! buttonLed_State; // this changes it to LOW if it was HIGH 
//                                            // and to HIGH if it was LOW
//       // time when this process is done:                                     
//       previousButtonMillis += buttonInterval;
//     }
//   }
// }