gistfile1.cpp

void energy::update(ticks time){
    const float angle=getAngle(start, target);
    float fx, fy, tx, ty;
    fx=start.x;
    fy=-1*start.y;
    tx=target.x;
    ty=-1*target.y;
    float dx,dy;
    const float vert=getPointDistance(start, target);
    const float addl=pxps*(time/1000);
    thedistance+=addl;
    //const float diff=vert-thedistance;
    if(thedistance>vert){
        delete this;
        return;
    }
    dx=sin((angle/180)*M_PI)*thedistance;
    dy=sqrt(pow(thedistance,2)-pow(dx,2));
    xx+=dx;
    xy+=dy; 
}