Here you can find the source of cos(final float angle)
| Parameter | Description |
|---|---|
| angle | angle. |
public static float cos(final float angle)
//package com.java2s; /*// w w w . j a v a2s . c o m * The MIT License (MIT) * * Copyright (c) 2016. Diorite (by Bart?omiej Mazur (aka GotoFinal)) * * 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. */ public class Main { private static final int SIN_CACHE_SIZE = 0xFFFF; private static final float UNKNOWN_CONST = 10430.378F; private static final float[] sinCache = new float[SIN_CACHE_SIZE]; /** * Faster cos method using special cache, based on Mojang code. * * @param angle angle. * * @return cos of given angle. */ public static float cos(final float angle) { return sinCache[((int) ((angle * UNKNOWN_CONST) + ((SIN_CACHE_SIZE + 1) / 4)) & SIN_CACHE_SIZE)]; } }