輝き

/**
* Shine
*
* @author aa_debdeb
* @date 2016/01/28
*/

ArrayList<Line> lines;

void setup(){
  size(500, 500);
  noLoop();
  colorMode(HSB, 360, 100, 100);
  lines = new ArrayList<Line>();
  for(int i = 0; i < 3000; i++){
    lines.add(new Line());
  }
  
  background(0);
  translate(width / 2, height / 2);
  for(Line line: lines){
    line.display();
  }
}

class Line{
  PVector end1, end2;
  int c;
  Line(){
    float radian = map(random(1), 0, 1, 0, TWO_PI);
    float radious = map(pow(random(1), 4), 0, 1, 0, 600);
    end1 = new PVector(radious * cos(radian),  radious * sin(radian));
    radian = map(random(1), 0, 1, 0, TWO_PI);
    radious = map(pow(random(1), 3), 0, 1, 0, 10);
    end2 = new PVector(radious * cos(radian),  radious * sin(radian));
    float hue = map(random(1), 0, 1, 0, 90);
    float sat = map(random(1), 0, 1, 50, 100);
    c = color(hue, sat, 100, 5);
  }
  
  void display(){
    for(float l = 0; l <= 1.0; l += 0.1){
      stroke(c);
      float sw = map(l, 0, 1, 3, 0.1);
      strokeWeight(sw);
      float x = map(l, 0, 1, 0, end1.x); 
      float y = map(l, 0, 1, 0, end1.y); 
      line(end2.x, end2.y, x, y);
    }
  }
}