public void showLine(WorldEntity e, Color c) {
Graphics g = getGObject().getEditor().getGraphics();
Point cme = getGObject().getCenter();
Point ce = e.getGObject().getCenter();
g.setColor(c);
g.drawLine(cme.x, cme.y, ce.x, ce.y);
}
/** Computes and returns the distance between two entities */
public int getDistance(WorldEntity e) {
Point wp = e.getPosition();
Point mep = getPosition();
int dx = wp.x - mep.x;
int dy = wp.y - mep.y;
return ((int) Math.round(Math.sqrt(dx * dx + dy * dy)));
}