From 21e249cb9234b6b40a9e5e15ceb92ab7e3d3c0b4 Mon Sep 17 00:00:00 2001
From: dteviot <dteviot@gmail.com>
Date: Tue, 4 Aug 2015 18:14:36 +1200
Subject: [PATCH] pass parameters as const &

---
 apps/openmw/mwmechanics/pathfinding.cpp | 8 ++++----
 apps/openmw/mwmechanics/pathfinding.hpp | 4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/apps/openmw/mwmechanics/pathfinding.cpp b/apps/openmw/mwmechanics/pathfinding.cpp
index 79cee9f32..c7d71e13e 100644
--- a/apps/openmw/mwmechanics/pathfinding.cpp
+++ b/apps/openmw/mwmechanics/pathfinding.cpp
@@ -87,14 +87,14 @@ namespace
 
 namespace MWMechanics
 {
-    float sqrDistanceIgnoreZ(ESM::Pathgrid::Point point, float x, float y)
+    float sqrDistanceIgnoreZ(const ESM::Pathgrid::Point& point, float x, float y)
     {
         x -= point.mX;
         y -= point.mY;
         return (x * x + y * y);
     }
 
-    float distance(ESM::Pathgrid::Point point, float x, float y, float z)
+    float distance(const ESM::Pathgrid::Point& point, float x, float y, float z)
     {
         x -= point.mX;
         y -= point.mY;
@@ -102,7 +102,7 @@ namespace MWMechanics
         return sqrt(x * x + y * y + z * z);
     }
 
-    float distance(ESM::Pathgrid::Point a, ESM::Pathgrid::Point b)
+    float distance(const ESM::Pathgrid::Point& a, const ESM::Pathgrid::Point& b)
     {
         float x = static_cast<float>(a.mX - b.mX);
         float y = static_cast<float>(a.mY - b.mY);
@@ -272,7 +272,7 @@ namespace MWMechanics
         if(mPath.empty())
             return true;
 
-        ESM::Pathgrid::Point nextPoint = *mPath.begin();
+        const ESM::Pathgrid::Point& nextPoint = *mPath.begin();
         if (sqrDistanceIgnoreZ(nextPoint, x, y) < tolerance*tolerance)
         {
             mPath.pop_front();
diff --git a/apps/openmw/mwmechanics/pathfinding.hpp b/apps/openmw/mwmechanics/pathfinding.hpp
index 4000f5d80..1765a5cc5 100644
--- a/apps/openmw/mwmechanics/pathfinding.hpp
+++ b/apps/openmw/mwmechanics/pathfinding.hpp
@@ -12,8 +12,8 @@ namespace MWWorld
 
 namespace MWMechanics
 {
-    float distance(ESM::Pathgrid::Point point, float x, float y, float);
-    float distance(ESM::Pathgrid::Point a, ESM::Pathgrid::Point b);
+    float distance(const ESM::Pathgrid::Point& point, float x, float y, float);
+    float distance(const ESM::Pathgrid::Point& a, const ESM::Pathgrid::Point& b);
     class PathFinder
     {
         public: