int leftBounds = 20 -200;
int topBounds = 20 -200;
int x = leftBounds;
int y = topBounds;
int rightBounds = 380 -200;
int bottomBounds = 380 -200;
int baseMax = 20;
int randomMax = 10;
int maxLines = 400;
int counter = 0;
int alpha = 20;

Line[] Lines;
//Ellipse[] Ellipses;

PImage myMask;

void setup(){
  size(400, 400);
  colorMode(HSB, 360, 100, 100);
  background(0, 0, 100);
 
  Lines = new Line[maxLines];
//  Ellipses = new Ellipse[maxLines];

  myMask = loadImage("mask.png");
  
  strokeWeight(1);
  smooth();
}

void draw(){
  pushMatrix();
  background(0,0,100);
  if(counter < maxLines){
    int maxDistance = baseMax * floor(random(0, 1) * randomMax);
    int minDistance = 2;
    int direction = random(0, 1) < 0.5 ? -1 : 1; 
    int xEnd = x + (direction * (minDistance + int( random(0, 1) * maxDistance)) );
    direction =  random(0, 1) < 0.5 ? -1 : 1;
    int yEnd = y + (direction * (minDistance + int( random(0, 1) * maxDistance)) );
    
    if(xEnd < leftBounds) xEnd = leftBounds;
    if(xEnd > rightBounds) xEnd = rightBounds;
    if(yEnd < topBounds) yEnd = topBounds;
    if(yEnd > bottomBounds) yEnd = bottomBounds;
    
    translate(200, 200);
    rotate(counter/PI/360);
    
    Lines[counter] = new Line(x, y, xEnd, yEnd);
    Lines[counter].setAlpha(alpha);
    Lines[counter].setWeight(maxDistance/20);
//    Ellipses[counter] = new Ellipse(x, y, maxDistance * .2, maxDistance * .2);
    
    x = xEnd;
    y = yEnd;
    
  }
  else {
    translate(200, 200);
    rotate(counter/PI/360);
  }
  counter++;
//  alpha++;
//  if(alpha > 100) alpha = 0;
  
  
//  if(counter >= 10 && counter<maxLines) Lines[counter - 10].disappear();
//  else if(counter > maxLines && counter < maxLines+10) {
//    Lines[counter-10].disappear();
//  }
//  else if(counter > maxLines+10) noLoop();
  
  if(counter < maxLines){
    for(int i=0; i<counter && i < maxLines; i++){
      Lines[i].bdraw();
//      Ellipses[i].bdraw();
    }
  }
  else{
    for(int i=0; i< maxLines; i++){
      Lines[i].bdraw();
//      Ellipses[i].bdraw();
    }
  }
  popMatrix();
  image(myMask, 0, 0);
}

void keyPressed(){
  if(key == 'r'){
    background(255);
    counter = 0;
    Lines = new Line[maxLines];
//    Ellipses = new Ellipse[maxLines];
  }
  if(key =='q'){
    save("p41_Lines09.jpg");
    exit();
  }

}