/**
* gets the distance between this repulsion force's wall and the input mass
*
* @param mass - mass to find the distance to
* @return dist - distance to mass
*/
public double getDistance(Mass mass) {
double dist = 0;
if (mySide == TOP_WALL) {
dist = mass.getY();
} else if (mySide == RIGHT_WALL) {
dist = mass.getX();
} else if (mySide == BOTTOM_WALL) {
dist = mass.getY() - myHeight;
} else if (mySide == LEFT_WALL) {
dist = mass.getX() - myWidth;
}
return dist;
}
/** Convenience method. */
public double distance(Mass other) {
// this is a little awkward, so hide it
return new Location(getX(), getY()).distance(new Location(other.getX(), other.getY()));
}