From 273391d8cb5212f37bcb965b79d9f71f4d58f8d2 Mon Sep 17 00:00:00 2001
From: Lynix <lynix680@gmail.com>
Date: Sun, 9 Jun 2013 15:53:49 +0200
Subject: [PATCH] Added optionnal parameter to NumberEquals(a, b)

Former-commit-id: 30e69529d7e15857046327edd6cbe587a3951fa3
---
 include/Nazara/Math/Basic.hpp | 3 ++-
 include/Nazara/Math/Basic.inl | 4 ++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/Nazara/Math/Basic.hpp b/include/Nazara/Math/Basic.hpp
index bcdba87e8..e2abe5903 100644
--- a/include/Nazara/Math/Basic.hpp
+++ b/include/Nazara/Math/Basic.hpp
@@ -10,6 +10,7 @@
 #include <Nazara/Prerequesites.hpp>
 #include <Nazara/Core/String.hpp>
 #include <cmath>
+#include <limits>
 
 #ifndef M_PI
 #define M_PI 3.141592653589793238462643
@@ -35,7 +36,7 @@ unsigned int NzGetNumberLength(double number, nzUInt8 precision = NAZARA_CORE_RE
 unsigned int NzGetNumberLength(long double number, nzUInt8 precision = NAZARA_CORE_REAL_PRECISION);
 template<typename T, typename T2> T NzLerp(T from, T to, T2 interpolation);
 template<typename T> T NzNormalizeAngle(T angle);
-template<typename T> bool NzNumberEquals(T a, T b);
+template<typename T> bool NzNumberEquals(T a, T b, T maxDifference = std::numeric_limits<T>::epsilon());
 NzString NzNumberToString(long long number, nzUInt8 radix = 10);
 template<typename T> T NzRadians(T radians);
 template<typename T> T NzRadianToDegree(T radians);
diff --git a/include/Nazara/Math/Basic.inl b/include/Nazara/Math/Basic.inl
index a53c950c0..7ff522e88 100644
--- a/include/Nazara/Math/Basic.inl
+++ b/include/Nazara/Math/Basic.inl
@@ -182,9 +182,9 @@ T NzNormalizeAngle(T angle)
 }
 
 template<typename T>
-bool NzNumberEquals(T a, T b)
+bool NzNumberEquals(T a, T b, T maxDifference)
 {
-	return std::fabs(a-b) < std::numeric_limits<T>::epsilon();
+	return std::fabs(a-b) < maxDifference;
 }
 
 inline NzString NzNumberToString(long long number, nzUInt8 radix)