/*  This code was written for the Stitch the Loop e-textiles curriculum by the
Exploring Computer Science e-textiles team. ECS 2018 GPL V3 for non commercial use.  
ECS 2018 CC- BY NC SA.  */

/*
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This program is an EXAMPLE of the many possible solutions.  This code will compile as is.
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*/
/*  STUDENT META HERE
STUDENT NAME(S)
 Date Written
Brief description of what program does here.
*/

// The first section is where to declare global objects and call up additional files the program needs to use.  
/*NAMING SECTION: We name things to keep track of them easily.
What will you name your other lights?
*/
int led1 = 0;
int led2 = 3;
int led3 = 10;
int led4 = 6;



void setup() {
  // The second section is for things that only need to be done once at the beginning of the program.  
   pinMode(led1, OUTPUT);
   pinMode(led2, OUTPUT);
   pinMode(led3, OUTPUT);
   pinMode(led4, OUTPUT);
  
}



void loop() {
  /* The third section is for things that happen repeatedly in the program loop
while the program is running. The code is executed in the order coded. */

    cycle();
  allBlink();
}

// The fourth section is for functions that are called up by the third section.

void cycle() {
  allOff();
  blinkLed(led1);
  blinkLed(led2);
  blinkLed(led3);
  blinkLed(led4);
}

void allBlink() {
  allOn();
  delay(1000);
  allOff();
  delay(1000);
}

void blinkLed(int led) {
  on(led);
  delay(500);
  off(led);
  delay(500);
}

void allOn() {
  on(led1);
  on(led2);
  on(led3);
  on(led4);
}

void allOff() {
  off(led1);
  off(led2);
  off(led3);
  off(led4);
}

void on(int led){
  digitalWrite(led, HIGH);
}

void off(int led) {
  digitalWrite(led, LOW);
}