vtm/source/helpers/math.ts

/*
 * Verrückte Turing-Maschinen — A turing complete game
 * Copyright (C) 2016-2018 kcf <vidofnir@folksprak.org>
 * 
 * This program 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.
 * 
 * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
 */

namespace lib_math
	{
		
		/**
		 * @desc golden ration
		 * @author kcf <vidofnir@folksprak.org>
		 */
		export const phi : float = 0.6180339887498949;
		
		
		/**
		 * @desc square
		 * @author kcf <vidofnir@folksprak.org>
		 */
		export function sqr(x : float) : float
			{
				return (x*x);
			}
		
		
		/**
		 * @desc square root
		 * @author kcf <vidofnir@folksprak.org>
		 */
		export function sqrt(x : float) : float
			{
				return Math.sqrt(x);
			}
		
		
		/**
		 * @desc quotient of integer division
		 * @author kcf <vidofnir@folksprak.org>
		 */
		export function div(x : int, y : int) : int
			{
				return Math.floor(x/y);
			}
		
		
		/**
		 * @desc rest of integer division
		 * @author kcf <vidofnir@folksprak.org>
		 */
		export function mod(x : int, y : int) : int
			{
				return (x - (y * div(x, y)));
			}
		
	}