IndustrialWires/src/main/java/malte0811/industrialWires/converter/MechEnergy.java

/*
 * This file is part of Industrial Wires.
 * Copyright (C) 2016-2017 malte0811
 * Industrial Wires 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.
 * Industrial Wires is 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 Industrial Wires.  If not, see <http://www.gnu.org/licenses/>.
 */

package malte0811.industrialWires.converter;


public final class MechEnergy {
	private double speed = 0;
	public final double weight;
	public MechEnergy(double weight, double speed) {
		this.weight = weight;
		this.speed = speed;
	}
	public double getEnergy() {
		return .5*weight*speed*speed;
	}

	public double getSpeed() {
		return speed;
	}

	public void addEnergy(double energy) {
		double targetEnergy = getEnergy()+energy;
		speed = Math.sqrt(2*targetEnergy/weight);
	}

	public void extractEnergy(double energy) {
		double oldEnergy = getEnergy();
		energy = Math.min(energy, oldEnergy);
		speed = Math.sqrt(2*(oldEnergy-energy)/weight);
	}

	public void decaySpeed(double decay) {
		speed *= decay;
		if (speed<.1)
			speed = 0;
	}

	//ONLY USE FOR SYNCING
	public void setSpeed(double speed) {
		this.speed = speed;
	}
}