int i;
double a,b,r,c,d,e,f,m,x,y;
Object incoming(double[][] n, double v, double w, double h) {
        for(;x==0;x = r<d ? r : y<f ? d : 0){
                c=n[i][0];
                e=n[i][1];
                d=n[++i][0];
                f=n[i][1];

                m = (f-e)/(d-c);

                a = 4.9/v/v;
                b = m-w/v;
                r = (Math.sqrt(b*b-4*a*(f-h-m*d))-b)/2/a;
                y = h + w/v*d - a*d*d;

        }

        return new double[]{ x, x-d != 0 ? m*(x-d)+f : y };
}