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* Copyright (c) 2015 - 2017
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
*
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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*******************************************************************************/
package jsettlers.common.utils;
import jsettlers.common.position.ShortPoint2D;
/**
* This class contains static util methods needed for some calculations.
*
* @author Andreas Eberle
*
*/
public final class MathUtils {
private MathUtils() {
}
/**
* Calculates sqrt(dx*dx+dy*dy) (Math.hypot() )
*
* @param dx
* @param dy
* @return
*/
public static double hypot(float dx, float dy) {
return Math.sqrt(dx * dx + dy * dy);
}
/**
* Calculates sqrt(dx*dx+dy*dy) (Math.hypot() )
*
* @param dx
* @param dy
* @return
*/
public static double hypot(int dx, int dy) {
return Math.sqrt(squareHypot(dx, dy));
}
/**
* Calculates dx*dx+dy*dy (the square of Math.hypot() )
*
* @param dx
* @param dy
* @return
*/
public static int squareHypot(int dx, int dy) {
return dx * dx + dy * dy;
}
/**
* Calculates the square of Math.hypot()
*
* @param pos1
* @param pos2
* @return
*/
public static int squareHypot(ShortPoint2D pos1, ShortPoint2D pos2) {
return squareHypot(pos1.x - pos2.x, pos1.y - pos2.y);
}
}