/*  Valentines Lines 2.0              */
int i;                                // iteration variable
float fli;                            // floating point iteration variable
float whitescale;                     // line color variable
float colpick;                        // color picking variable

void setup( ){
  size(400, 500);                     // set canvas
  background(0);                      // pick black for background
  frameRate(2);                       // more fun to go slow
  strokeWeight(2);                    // wide lines better
}

void draw( ) {
  colpick = random(0,1);              // pick a value which will code for a color
  whitescale = int(random(0,255));         // whiteness of this run
  if (colpick < 0.15) {               
    stroke(128,0,128);                // Pick color purple
  } else if (colpick < 0.66){         
    stroke(255,whitescale,whitescale);// Pick color on red-scale
  } else {
    stroke (255,whitescale,255);      // Pick color on purple-scale
  }
  fli = random(1,10);                 // choose number of lines
  for (i = int(fli); i > 0; i--) {    // Do a random-numbered batch between 1 and 10
    line(random(1,399), random(1, 499), random(1,399), random(1, 499));  
  }
  
  //Heart frame
  noStroke();
  fill(0);
  triangle(0,150,0,500,200,500);
  triangle(400,150,400,500,200,500);
  beginShape();
    curveVertex(0,150);
    curveVertex(0,150);
    curveVertex(5,75);
    curveVertex(30,30);
    curveVertex(100,0);
    curveVertex(170,30);
    curveVertex(200,75);
    curveVertex(200,75);
    vertex(200,0);
    vertex(0,0);
    vertex(0,150);
  endShape(CLOSE);
  beginShape();
    curveVertex(400,150);
    curveVertex(400,150);
    curveVertex(395,75);
    curveVertex(370,30);
    curveVertex(300,0);
    curveVertex(230,30);
    curveVertex(200,75);
    curveVertex(200,75);
    vertex(200,0);
    vertex(400,0);
    vertex(400,150);
  endShape(CLOSE);
}