From 2c849c9b3675626f6027e067b20d0988223e1fcb Mon Sep 17 00:00:00 2001
From: darkrose <lisa@ltmnet.com>
Date: Sat, 8 Mar 2014 14:28:49 +1000
Subject: [PATCH] some noise tweaks

---
 src/noise.cpp | 8 ++------
 src/noise.h   | 4 +++-
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/src/noise.cpp b/src/noise.cpp
index 9b5854a..0602daf 100644
--- a/src/noise.cpp
+++ b/src/noise.cpp
@@ -32,15 +32,11 @@ double cos_lookup[16] = {
 	1.0,-0.9238,-0.7071,-0.3826,0,0.3826,0.7071,0.9238
 };
 
-double dotProduct(double vx, double vy, double wx, double wy){
+inline double dotProduct(double vx, double vy, double wx, double wy){
     return vx*wx+vy*wy;
 }
 
-double easeCurve(double t){
-    return 6*pow(t,5)-15*pow(t,4)+10*pow(t,3);
-}
-
-double linearInterpolation(double x0, double x1, double t){
+inline double linearInterpolation(double x0, double x1, double t){
     return x0+(x1-x0)*t;
 }
 
diff --git a/src/noise.h b/src/noise.h
index 35db781..5ef7e80 100644
--- a/src/noise.h
+++ b/src/noise.h
@@ -59,7 +59,9 @@ private:
 	int m_next;
 };
 
-double easeCurve(double t);
+inline double easeCurve(double t){
+	return t * t * t * (6. * t * t - 15. * t + 10.);
+}
 
 // Return value: -1 ... 1
 double noise2d(int x, int y, int seed);