// Video Cubes
//
//  Scott "Jerry" Lawrence
//  2003-09-11

boolean useVideo = true;  // set to true if you have a webcam.
boolean backing = true;   // set to false to see it break

int vw = 80;
int vh = 60;


// our initialization
void setup()
{
  size( 320, 240 ); // screen size
  
  if( backing == false )
  {
    noBackground( ); // don't clear the backing store with each frame
    fill( 0 );
    rect( 0, 0, width, height );
  } else {
    background( 0 );
  }
  
  if( useVideo )
    beginVideo( vw, vh, 30 ); // start up video capture
  noStroke();
}

// the main loop...
void loop()
{
  if( backing == false )
  {
    // dim out the previous frame
    noStroke();
    fill( 255, 0, 0, 50 );
    rect( 0, 0, width, height );
  }

  push();
  
  translate( width/2, height/2 );
  scale( width/vh/2 );
  rotateY( radians( mouseX * 360/ 256 + 180));
  rotateX( radians( -mouseY * 360/ 256 + 180));
  
  boolean mp = mousePressed;
  
  for( int y = 0 ; y < vh ; y++ )
  {
    int offset = y*vw;
    
    /*
    if( mp )
      beginShape(LINE_STRIP);
    */
      
    for( int x = 0 ; x < vw ; x++ )
    {
      color ccc; 
      
      if( useVideo )
        ccc = video.pixels[offset];
      else
        ccc = color( x*4 + random( 50 ),
                     y*4 + random( 50 ), 
                     abs( x-y)*4 + random( 50 ) );
        
      push();
      translate( -vw+x*2, -vh+y*2 );
      float bbb = brightness( ccc );

      if( mp )
      {
        noStroke();
        fill( ccc );
        box( bbb/64, bbb/64, bbb/32 );
      } else {
        stroke( ccc );
        point( 0, 0, bbb/16);
        fill( ccc );
        /*
        noStroke();
        rect( 0, 0, 3, 3 );
        */
      }
        
      offset++;  
      pop();
    }
    
    /*
    if( mp )
      endShape();
    */
  }

  //imageMode(CENTER_DIAMETER); 
  //
  pop();
  stroke( 0 );
  
  if( keyPressed )
  {
    if( key == 'G' )
      screenGrab();
  }
}