/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2023, Arnaud Roques
 *
 * Project Info:  http://plantuml.com
 * 
 * If you like this project or if you find it useful, you can support us at:
 * 
 * http://plantuml.com/patreon (only 1$ per month!)
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 * 
 * This file is part of PlantUML.
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * PlantUML distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
 * License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 *
 * Original Author:  Arnaud Roques
 * 
 *
 */
package net.sourceforge.plantuml.real;

class RealMiddle2 extends RealMoveable {

	private final RealMoveable p1;
	private final RealMoveable p2;

	RealMiddle2(RealMoveable p1, RealMoveable p2) {
		super(p1.getLine(), "middle");
		assert p1.getLine() == p2.getLine();
		this.p1 = p1;
		this.p2 = p2;
	}

	@Override
	double getCurrentValueInternal() {
		return (p1.getCurrentValue() + p2.getCurrentValue()) / 2;
	}

	// public Real addFixed(double diff) {
	// return new RealMiddle2(p1, p2, delta + diff);
	// }

	public Real addAtLeast(double delta) {
		throw new UnsupportedOperationException();
	}

	public void ensureBiggerThan(Real other) {
		getLine().addForce(new PositiveForce(other, this, 0));
	}

	@Override
	void move(double delta) {
		p1.move(delta / 2);
		p2.move(delta / 2);
	}

}
