//set up the class
class Ball
{
  float xpos; //will be the x pos
  float ypos; //will be the y pos
  int rad; //will be the radius
  float xincr;
  float yincr;
  float siner = 1.0;
  float sinAmt = 1.0;

  //The constructor inits all these properties passed from the new
  Ball(int x, int y, int r, int speed)
  {
    this.xpos = x;
    this.ypos = y;
    this.rad = r;

    if(speed == 0)
    {
      speed = speed + 1;
    }

    this.xincr = speed;
    this.yincr = speed;
  }

  //this is a method inside the ball class
  //the method is a member of the ball class
  void plot()
  {
    strokeWeight(2);
    stroke(125,255);
    ellipse(xpos,ypos,rad,rad);
  }

  //this method increments the x value
  void move()
  {
    //add some sin/cos action to give it a bit of wobble
    siner = siner+sinAmt;
    sinAmt ++;
    
    //add an increment to x
    xpos = xpos + xincr+(sin(siner)*5.0);
    ypos = ypos + yincr+(cos(siner)*5.0);


    //if it is greater than the right or less that the left
    if((xpos >= width) || (xpos <= 0))
    {
      //reverse gear
      xincr = -xincr;

      attractRepel(); // change the particle attraction/repulsion in main script
    }

    //do the up and down version
    if((ypos >= height) || (ypos <= 0))
    {
      //reverse gear
      yincr = -yincr;

      attractRepel(); // change the particle attraction/repulsion in main script
    }


  }


}