From a185c11f2397c0296a4b62cc266b4fa00a63c1e2 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Wed, 14 May 2008 21:07:10 +0000
Subject: console, camera & interpolation

---
 src/math/functions.cc | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'src/math')

diff --git a/src/math/functions.cc b/src/math/functions.cc
index e048659..40f0f4e 100644
--- a/src/math/functions.cc
+++ b/src/math/functions.cc
@@ -9,6 +9,8 @@
 namespace math
 {
 
+const float DELTA = 10e-10;
+
 float min(float a, float b)
 {
 	return (a < b ? a : b);
@@ -42,9 +44,9 @@ unsigned randomi(const unsigned int max)
 float degrees180f(float angle)
 {
 	float r = angle;
-	while (r < -180.0f)
+	while (r - DELTA < -180.0f)
 		r += 360.0f;
-	while (r > 180.0f)
+	while (r + DELTA > 180.0f)
 		r -= 360.0f;
 	return r;
 }
@@ -52,9 +54,9 @@ float degrees180f(float angle)
 float degrees360f(float angle)
 {
 	float r = angle;
-	while (r < 0.0f)
+	while (r - DELTA < 0)
 		r += 360.0f;
-	while (r > 360.0f)
+	while (r + DELTA > 360.0f)
 		r -= 360.0f;
 	return r;
 }
-- 
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