// Chris Olsen
// 500360239

// Problem Set 3 - Question 1

int[] diameter = {          //array for diameter of each circle
  600, 400, 200};
float[] lastusedAngle = new float[3];          //progression
float[] num = new float[3];     
color[] colors = {
  color(255,218,42,100), color(178,30,150,100), color(0,0,0), color(34,204,197,100), color(0,218,42,100)};  //color palette
int[] position = new int[3];
color holdColor;


void setup() {
  size(600, 600);
  smooth();
  frameRate(45);
  noStroke();
  background(0);

}


void draw() {


  //1st generator

  for (int i=0; i<=2; i++) { 
    num[i] = random(360-lastusedAngle[i]+1);
    if ((num[i] > 15) && (num[i] < 40) ) {
      pushMatrix();

      translate(width/2,height/2);
      rotate(radians(map(position[1],1,600,1,360)));

      fill(colors[i]);
      arc(0,0,600,600,lastusedAngle[i],lastusedAngle[i]+radians(num[i]));    //adds to the succession of arcs
      lastusedAngle[i] += num[i];

      popMatrix();

      position[1] += num[i];
      fill(0);
      ellipse(width/2,height/2,50,50);
    }
    else

        if (lastusedAngle[i] <= 0); 
    lastusedAngle[i] = 0;



  }



  changeColor();


//2nd generator
  for (int i=0; i<=2; i++) {
    num[i] = random(360-lastusedAngle[i]+1);
    if ((num[i] > 15) && (num[i] < 40) ) {
      pushMatrix();

      translate(width/2,height/2);
      rotate(radians(-map(position[2],1,600,1,360)));

      fill(colors[i]);
      arc(0,0,200,200,lastusedAngle[i],lastusedAngle[i]+radians(num[i]));  //adds to the succession of arcs
      lastusedAngle[i] += num[i];

      popMatrix();
      position[2] += num[2];
      fill(0);
      ellipse(width/2,height/2,50,50);
    }
    else

        if (lastusedAngle[i] <= 0); 
    lastusedAngle[i] = 0;



  }



  changeColor();

//3rdgenerator

  for (int i=0; i<=2; i++) {
    num[i] = random(360-lastusedAngle[i]+1);
    if ((num[i] > 15) && (num[i] < 40) ) {
      pushMatrix();

      translate(width/2,height/2);
      rotate(radians(map(position[2],1,600,1,360)));

      fill(colors[i]);
      arc(0,0,400,400,lastusedAngle[i],lastusedAngle[i]+radians(num[i]));  //adds to the succession of arcs
      lastusedAngle[i] += num[i];

      popMatrix();
      position[2] += num[2];
      fill(0);
      ellipse(width/2,height/2,50,50);
    }
    else

        if (lastusedAngle[i] <= 0); 
    lastusedAngle[i] = 0;


  }

  changeColor();  


}



void changeColor() {     //cycles through color selection

  holdColor = colors[0];
  colors[0] = colors[1];
  colors[1] = colors[2];
  colors[2] = colors[3];
  colors[3] = colors[4];
  colors[4] = holdColor;
}