/*  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?
*/
//1,2,9,12
int led1 = 1;
int led2old = 2;
int led2 = 3;
int led3 = 9;
int led4 = 6;
int led4old = 12;




int blinkCounter = 1;
int heartCounter = 1;
int fadeBrightness = 5;
bool fadeUp = true;


/*SETUP SECTION: Put things here that you only need to do once:
For instance, OUTPUTS (lights)
*/
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(led2old, OUTPUT);
   pinMode(led3, OUTPUT);
   pinMode(led4, OUTPUT);
   pinMode(led4old, 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. */


 
  blinkPattern(led1);
  twinkle(led2);  
  
  twinkle(led2old); 
  heartBeat(led3);
  fade(led4);
  fade(led4old);
  
  delay(100);
}


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


void randomPattern(int led)
{
  //random brightness 50-250
  int chance = random(1000);
  int brightness = random(200) + 50;
  if (chance <500)
    analogWrite(led, brightness);
  else
    off(led);
}


void twinkle(int led)
{
 int brightness = random(250);
 analogWrite(led, brightness);
  
}


void blinkPattern(int led)
{
  if (blinkCounter == 1)
    on(led);
  else if (blinkCounter == 6)
    off(led);
  else if(blinkCounter > 10)
    blinkCounter = 0;


  blinkCounter ++;
}


void heartBeat(int led)
{
  if (heartCounter == 1)
    on(led);
  else if (heartCounter == 3)
    off(led);
  else if (heartCounter == 5)
    on(led);
  else if (heartCounter == 7)
    off(led);
  else if(heartCounter > 15)
    heartCounter = 0;


  heartCounter ++;
}


void fade(int led)
{
  if (fadeUp) {
    if(fadeBrightness >= 200)
      fadeUp = false;
      //fadeBrightness = 5;
    else
      fadeBrightness += 10;
  }
  else {
    if(fadeBrightness <= 5)
      fadeUp = true;
      //fadeBrightness = 5;
    else
      fadeBrightness -= 10;
  } 
      
  analogWrite(led, fadeBrightness);


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


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