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Make non-gcc compilers happy...
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/**
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* Copyright (c) 2006-2013 LOVE Development Team
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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**/
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#ifndef LOVE_MATH_MODMATH_H
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#define LOVE_MATH_MODMATH_H
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// LOVE
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#include "common/Module.h"
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#include "common/math.h"
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#include "common/int.h"
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// STL
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#include <limits>
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#include <stdint.h>
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#include <vector>
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namespace love
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{
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namespace math
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{
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class Math : public Module
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{
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public:
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virtual ~Math()
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{}
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/** Set pseudo random seed.
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*
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* It's up to the implementation how to use this.
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*
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* @param seed The random seed.
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*/
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inline void randomseed(uint64_t seed)
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{
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rng_state = seed;
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}
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/** Return uniformly distributed pseudo random integer.
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*
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* @returns Pseudo random integer in [0,2^64).
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*/
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uint64 rand();
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/** Get uniformly distributed pseudo random number in [0,1).
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*
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* @returns Pseudo random number in [0,1).
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*/
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inline double random()
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{
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return double(rand()) / (double(std::numeric_limits<uint64>::max()) + 1.0);
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}
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/** Get uniformly distributed pseudo random number in [0,max).
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*
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* @returns Pseudo random number in [0,max).
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*/
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inline double random(double max)
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{
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return random() * max;
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}
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/** Get uniformly distributed pseudo random number in [min, max).
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*
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* @returns Pseudo random number in [min, max).
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*/
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inline double random(double min, double max)
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{
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return random() * (max - min) + min;
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}
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/** Get normally distributed pseudo random number.
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*
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* @param stddev Standard deviation of the distribution.
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* @returns Normally distributed random number with mean 0 and variance (stddev)².
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*/
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double randnormal(double stddev);
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virtual const char *getName() const
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{
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return "love.math";
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}
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/** Triangulate a simple polygon.
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* @param polygon Polygon to triangulate. Must not intersect itself.
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* @returns List of triangles the polygon is composed of.
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*/
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std::vector<Triangle> triangulate(const std::vector<vertex> &polygon);
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static Math instance;
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private:
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Math();
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uint64 rng_state;
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double last_randnormal;
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};
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} // math
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} // love
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#endif
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