/**
Snowflakes - The day 1 door for my 2010 Advent calendar
<br>
by <a href="http://www.local-guru.net/blog/">Guru</a>
*/

PVector[] flakes;

void setup() {
  size(300,300);
  flakes = new PVector[50];
  
  for ( int i=0; i < flakes.length; i++) {
    flakes[i] = new PVector( random( width), random( height ));
  }
}

void draw() {
  strokeWeight(1);
  for( int i=0; i<height; i++) {
    stroke( color( 0,0,map( i, 0, height, 0, 128 )));
    line( 0, i, width, i );
  }
  
  strokeWeight(2);
  stroke( 128,64,0);
  fill( 200, 128, 0);
  rect( width/2 - 10, height - 40, 20, 40);
  
  stroke( 255);
  fill( 0, 128, 0);
  
  beginShape();
    vertex( width/2, height - 160 );
    vertex( width/2 - 70, height - 40 );
    vertex( width/2 + 70, height - 40 );
  endShape(CLOSE);
  beginShape();
    vertex( width/2, height - 200 );
    vertex( width/2 - 50, height - 120 );
    vertex( width/2 + 50, height - 120 );
  endShape(CLOSE);
 
  stroke( 255, 200 );
  for ( int i=0; i < flakes.length; i++) {
    line( flakes[i].x -5, flakes[i].y, flakes[i].x+5, flakes[i].y );    
    line( flakes[i].x -3, flakes[i].y-3, flakes[i].x+3, flakes[i].y+3 );    
    line( flakes[i].x -3, flakes[i].y+3, flakes[i].x+3, flakes[i].y-3 );    
    line( flakes[i].x, flakes[i].y-5, flakes[i].x, flakes[i].y+5 );    

    flakes[i].add( new PVector( 0, 1));
    
    if ( flakes[i].y > height ) {
      flakes[i] = new PVector( random( width ), 0 );
    }
  }

  stroke( 255 );
  fill(255);
  beginShape();
  vertex( 0,height );
  vertex( width, height );
  vertex( width, height - 10 );  
  curveVertex( width, height - 10 );
  curveVertex( width/2+50, height - 20);
  curveVertex( width/2-50, height - 20);
  curveVertex( 0,height - 10 );
  curveVertex( 0,height - 10 );
  endShape(CLOSE);   
}