// Draw fireflies over the Quickdraw logo
// Code adapted from an exqmple on the Proessing.org websit
// on March 6, 2010 by Andrew Jaremko and Alan Ferguson


int currentFrame = 0;
PImage[] frames = new PImage[24];
int lastTime = 0;
int drawColor;
PImage QASlogo;

void setup() 
{
  size(500, 500);
  colorMode(HSB, 360,100,100);
  strokeWeight(12);
  smooth();
  QASlogo = loadImage ("QASlogo.png");
  image(QASlogo, 0,0);
  for (int i = 0; i < frames.length; i++) {
   frames[i] = get(); // Copy background to array
  }
}

void draw() 
{
  int currentTime = millis();

  drawColor += 1;
  if (drawColor > 360) { drawColor = 0; }
  
  if (currentTime > lastTime+30) {
    nextFrame();
    lastTime = currentTime;
  }
  //darken the backgroun then draw the firefly surrounded by a glow
  strokeWeight(45);
  stroke(0,0,0,64);
  if (mousePressed == true) {
    line(pmouseX, pmouseY, mouseX, mouseY);
  }


  strokeWeight(30);
  stroke(drawColor,100,100,48);
  if (mousePressed == true) {
    line(pmouseX, pmouseY, mouseX, mouseY);
  }
  strokeWeight(18);
  stroke(drawColor,100,100,48);
  if (mousePressed == true) {
    line(pmouseX, pmouseY, mouseX, mouseY);
  }

  strokeWeight(6);
  stroke(drawColor,100,100,255);
  if (mousePressed == true) {
    line(pmouseX, pmouseY, mouseX, mouseY);
  }
}

void nextFrame() 
{
  frames[currentFrame] = get(); // Get the display window
  currentFrame++; // Increment to next frame
  if (currentFrame >= frames.length) {
    currentFrame = 0;
  }
  image(frames[currentFrame], 0, 0);
}



void keyReleased(){
  //clear the screen to the starting imaage
   image(QASlogo, 0, 0);
   for (int i = 0; i < frames.length; i++) {
   frames[i] = get(); // Copy the logo frame
  
   }
}