package class1_3_DuckStrategies_v5;

public class HorizontalSwimming implements SwimBehavior {
    private Duck parent;

    public HorizontalSwimming(Duck duck) {
        parent = duck;
    }

    /**
     * Horizontal swimming
     */
    @Override
    public void swim() {
        if( (parent.currentPos.x > (DuckPond.PONDSIZE-parent.image.getWidth(null))) // leaving the window's right edge
                || (parent.currentPos.x < 0) ) { // ...or left edge
            parent.increment.x = -parent.increment.x; // reverse direction
        }

        parent.currentPos.x += parent.increment.x; // increment the position of the duck
        parent.setLocation(parent.currentPos); // ...and update its location in the container
    }
}