/**
 * Aether Colors
 * by Xavier Gouchet (2008)
 **/
 
// Canvas Size
int width = 512;
int height = 512;

// Frames
float time = 0;
float limit = 512;

// Static variables
float pi = 3.14159265;
float d2r = (2*pi)/360.0;

// Font
PFont fontA = createFont("Courier", 12);

// random variables 

// Coloring Mode 
int sat = (round(random(100))%2)*220;
int val = 255;
int bg = (round(random(100))%2)*255;
int fg = 255 - bg;

// Speed
float l1 = random(10);
float l2 = random(10);
float l3 = random(10);
float l4 = random(10);
// Size
float s1 =  max(width/32,width/3);
float s2 =  max(height/32,height/3);
float s3 =  max(width/32,width/3);
float s4 =  max(height/32,height/3);
// Position
float p1 = random(s1, width-s1);
float p2 = random(s2, height-s2);
float p3 = random(s3, width-s3);
float p4 = random(s4, height-s4);

void setup(){
  size(width,height);
  background(bg);
  frameRate(60);
  smooth();
  if (sat==0) {
    val = fg; 
  }
}

void draw(){
  if (time<limit){
    for (int i=0; i<4; i++){
      //increment time
      time+= 0.01;
    
      // Create parametric position
      float Ax = (sin(time*d2r*l1) * s1) + p1;
      float Ay = (sin(time*d2r*l2) * s2) + p2;
      float Bx = (sin(time*d2r*l3) * s3) + p3;
      float By = (cos(time*d2r*l4) * s4) + p4;
    
      // Set color mode
      colorMode(HSB, 256);
      stroke( (round(time)%256),sat,val,2);
    
      // draw line
      line(Ax,Ay,Bx,By);
      
    }
    
  } else {
    
    if (time<=limit+1){
      // write params 
      textFont(fontA,12);
      fill(fg);
      String s;
      
      // Speed params
      s = "Speeds    : " + str(l1) + " ; " + str(l2) + " ; " + str(l3) + " ; " + str(l4);
      text(s,10,15);
      
      // Size params
      s = "Sizes     : " + str(s1) + " ; " + str(s2) + " ; " + str(s3) + " ; " + str(s4);
      text(s,10,25);
      
      // Position params
      s = "Positions : " + str(p1) + " ; " + str(p2) + " ; " + str(p3) + " ; " + str(p4);
      text(s,10,35);
      time = limit +2;
      
      // Stop the programm
      exit();
    }
  }
}