/**

* Ball class

*/

public class Ball{

//initial coordinates

public float x,y;

//coordinates at time t

public float xt,yt;

//initial velocity

public float ux,uy;

//final velocity

public float vx,vy;

//speed of ball

public double modV;

public double getModV() {

return modV;

}

public void setModV() {

//this.vx=vx;

//this.vy=vy;

double temp=(vx*vx)+(vy*vy);

modV=Math.sqrt(temp);

}

//collusion detection

public int coll_flag;

public boolean coll_dect;

//internal parameters

double S1x,S2x,S1y,S2y;

double pt1y,pt1x;

double npx, npy, vix, viy, vfx, vfy;

double dotProd;

public int collided_flag;

}