/* This file is part of Wattzap Community Edition.
*
* Wattzap Community Edtion 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.
*
* Wattzap Community Edition 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 Wattzap. If not, see <http://www.gnu.org/licenses/>.
*/
package com.wattzap.model.power;
/*
* Ascent Fluid
* Power: 10km/h=50w, 20km/h=112w, 30km/h=232w, 40km/h=415w, 50km/h=700w, 60km/h=1100w
*
* Function: y = 0.00442x³ -0.04x² + 4.95833x
*
* @author David George
* @date 2 January 2015
*/
@PowerAnnotation
public class AscentFluid extends Power {
private static final double a = 0.00422;
private static final double b = -0.04;
private static final double c = 4.95833;
private static final double d = 0;
private static final Cubic cubic = new Cubic();
public int getPower(double speed, int resistance) {
double power = (c * speed) + (b * speed * speed)
+ (a * speed * speed * speed);
return (int) power;
}
public String toString() {
return "Ascent Fluid";
}
@Override
public int getResitanceLevels() {
return 1;
}
public double getSpeed(int power, int resistance) {
cubic.solve(a, b, c, d - power);
return cubic.x1;
}
}