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/*
* Copyright (c) 2018-2020 bartimaeusnek 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. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
package bartworks.util;
/*
* Faster implementations for Math stuff
*/
@SuppressWarnings("unused")
public class MathUtils {
public static long floorLong(double x) {
if (Double.isInfinite(x) || Double.isNaN(x)) return (long) x;
long xi = (long) x;
return x < xi ? xi - 1 : xi;
}
public static long ceilLong(double x) {
if (Double.isInfinite(x) || Double.isNaN(x)) return (long) x;
long xi = (long) x;
return x > xi ? xi + 1 : xi;
}
public static int floorInt(double x) {
if (Double.isInfinite(x) || Double.isNaN(x)) return (int) x;
int xi = (int) x;
return x < xi ? xi - 1 : xi;
}
public static int ceilInt(float x) {
if (Float.isInfinite(x) || Float.isNaN(x)) return (int) x;
int xi = (int) x;
return x > xi ? xi + 1 : xi;
}
public static int ceilInt(double x) {
if (Double.isInfinite(x) || Double.isNaN(x)) return (int) x;
int xi = (int) x;
return x > xi ? xi + 1 : xi;
}
public static double floor(double x) {
if (Double.isInfinite(x) || Double.isNaN(x)) return x;
int xi = (int) x;
return x < xi ? xi - 1 : xi;
}
public static double ceil(double x) {
if (Double.isInfinite(x) || Double.isNaN(x)) return x;
int xi = (int) x;
return x > xi ? xi + 1 : xi;
}
public static byte clamp(byte amount, byte min, byte max) {
byte inner = amount <= max ? amount : max;
return min >= inner ? min : inner;
}
public static short clamp(short amount, short min, short max) {
short inner = amount <= max ? amount : max;
return min >= inner ? min : inner;
}
public static int clamp(int amount, int min, int max) {
return Math.max(min, Math.min(amount, max));
}
public static long clamp(long amount, long min, long max) {
return Math.max(min, Math.min(amount, max));
}
public static float clamp(float amount, float min, float max) {
return Math.max(min, Math.min(amount, max));
}
public static double clamp(double amount, double min, double max) {
return Math.max(min, Math.min(amount, max));
}
public static <T extends Comparable<T>> T clamp(T val, T min, T max) {
return val.compareTo(min) < 0 ? min : val.compareTo(max) > 0 ? max : val;
}
public static int wrap(int input, int bound) {
return (input % bound + bound) % bound;
}
public static long wrap(long input, long bound) {
return (input % bound + bound) % bound;
}
public static double wrap(double input, double bound) {
return (input % bound + bound) % bound;
}
public static float wrap(float input, float bound) {
return (input % bound + bound) % bound;
}
public static float tanh(float x) {
float x2 = x * x;
float a = x * (135135.0f + x2 * (17325.0f + x2 * (378.0f + x2)));
float b = 135135.0f + x2 * (62370.0f + x2 * (3150.0f + x2 * 28.0f));
return clamp(a / b, -1, 1);
}
}
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