//Justin Faria "Data Culture Assignment 3"
//10/28/07
//  This was my exploratory program. Since I still don't know 
//enough about the syntax of processing 1.0 its mostly a cut 
//and paste program. Its a combination of the mouse functions,
//Mouse 2D, and a storing input as the cursor. The goal here 
//was just to play in the program to find its limits. So I 
//picked out my three favorite programs and messed around trying
//to get them to work together.
//  I hope to eventually put a set of key controls that will 
//allow me to freeze the program and move individual parts of
//the image in a similar fashion to the ellipse. The greatest 
//diffculty I can see is to make the objects both freeze and be
//operable by the cousor witout loosing the Mouse 2D control.

float bx;
float by;
int bs = 20;
boolean bover = false;
boolean locked =false;
float bdifx =0.0;
float bdify = 0.0;

int num = 60;
float mx[] = new float[num];
float my[] = new float[num];

void setup() 
{
  size(400, 400);
  bx = width/2.0;
  by = height/2.0;
  ellipseMode (CENTER_RADIUS);
  
  smooth();
  fill(255,255);
  
  colorMode (RGB, 255, 255, 255, 100);
  rectMode (CENTER);
 }

void draw ()
{
  background (42);
  
  // the Mouse 2D effect
  fill(255, 80);
  rect(mouseX, height/2, mouseY/2+10, mouseY/2+10);
  fill(255, 80);
  rect(width-mouseX, height/2, ((height-mouseY)/2)+10, ((height-mouseY)/2)+10);

  // begining of the moveable elipse program
  if (mouseX > bx-bs && mouseX <bx+bs && 
  mouseY > by-bs && mouseY <by+bs) {
    bover = true;
    if (!locked) {
      stroke (255);
      fill (153);
    }
  } else {
    stroke (153);
    fill (153);
    bover = false;
  }
  
  ellipse (bx, by, bs, bs);

// the cursor for the Mouse starts here
  for (int i=1; i<num; i ++) {
    mx [i-1] = mx[i];
    my [i-1] = my[i];
  }
  
  mx[num-1] = mouseX;
  my[num-1] = mouseY;
  
  for (int i=0; i<num; i++) {
    ellipse (mx[i], my[i], i/5, i/5);
    fill (0,0);
  }
  
}

//return to the moveable ellips
void mousePressed() {
  if(bover) {
    locked = true;
    fill (255,255,255);
  } else {
    locked = false;
  }
  bdifx = mouseX-bx;
  bdify = mouseY-by;
  
}

void mouseDragged() {
  if (locked) {
    bx = mouseX-bdifx;
    by = mouseY-bdify;
  }
}

void mouseReleased() {
  locked = false;
}