Method equals

src/main/World.java:55–62

(Object another)

	}

	@Override
	public boolean equals(Object another) {
		if (another instanceof World == false) {
			return false;
		}
		World anotherWorld = (World) another;
		return this.name.equals(anotherWorld.name);
	}

	public ImageIcon getIcon() {
		if (this.icon == null) {