mirrormove.pde

// import fullscreen.*; 
import processing.video.*;

MovieMaker mm;
// FullScreen fs;
PImage img;
PGraphics mask;
String[] images;
int imgIndex = 0;
int xOffset;
int pauseFrames = 53; // number of frames after each image
int pauseCountdown = pauseFrames;
// FIXME remove
boolean imageUpdated;

void setup() {
  size(1440/2, 900/2);
  // fullscreen
  // fs = new FullScreen(this);   
  // fs.enter();  
  
  mm = new MovieMaker(this, width, height, "drawing.mov", 30, MovieMaker.SORENSON, MovieMaker.HIGH);
  frameRate(31);
  images = split("79gedreht.jpg IMG_0405.JPG IMG_0397.JPG IMG_0449.JPG IMG_0058.JPG IMG_0424.JPG IMG_0209.JPG IMG_0322.JPG IMG_0054.JPG", ' ');  
  loadImage();
}

void draw() {       
  background(0);      
  image(img, (width/2 - img.width) + xOffset, 0);   
  // alter offset after first image, otherwise there would be a 1px gap
  if(xOffset > 0)
    --xOffset;    
  // mask
  mask.beginDraw();
    mask.rect(0, 0, img.width - xOffset, mask.height);
  mask.endDraw(); 
  img.mask(mask);  
  // display mirrored
  pushMatrix();
    translate(width/2, 0);
    scale(-1.0, 1.0);
    image(img, -img.width + xOffset, 0);    
  popMatrix();
  // work against flickering (bug?)
  if(imageUpdated == true) {
    fill(0);
    rect(0, 0, width, height);
    imageUpdated = false;    
  }
  // pause
  if(xOffset <= 0) {
    pause();
  }
  mm.addFrame();
}

void pause() {
  if(pauseCountdown < 24) {
    tint(map(pauseCountdown, 1, pauseFrames - 24, 0, 255));
  }
  if(--pauseCountdown < 0) {
    pauseCountdown = pauseFrames;
    imgIndex++;
    loadImage();
  } 
}

void loadImage() {
  if(imgIndex >= images.length || imgIndex < 0) {    
    mm.finish();
    exit();
    imgIndex = 0;
  }
  // load image, resize and evtl. crop
  img = loadImage("../images/" + images[imgIndex]);
  img.resize(width, 0);
  if(img.height > height)
    img.resize(0, height);
  mask = createGraphics(img.width, img.height, P2D);
  // offset
  tint(255);
  xOffset = img.width;
  imageUpdated = true;
}

void keyReleased() {
  switch(keyCode) {
    case 37:  //arrow right
    --imgIndex;
    break;
    case 39:  //arrow left
    case 32:
    ++imgIndex;    
  }
  loadImage();
}