From 5792091e9db92aefb3ff969d9059923fa03bb90e Mon Sep 17 00:00:00 2001
From: Bruno de Oliveira Abinader <bruno@mapbox.com>
Date: Fri, 10 Jun 2016 21:57:12 +0300
Subject: [core] Added mbgl::util::DEFAULT_TRANSITION_EASE

---
 include/mbgl/util/constants.hpp | 3 +++
 src/mbgl/map/transform.cpp      | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/mbgl/util/constants.hpp b/include/mbgl/util/constants.hpp
index 543d5b3cab..607c388e95 100644
--- a/include/mbgl/util/constants.hpp
+++ b/include/mbgl/util/constants.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <mbgl/util/chrono.hpp>
+#include <mbgl/util/unitbezier.hpp>
 
 #include <cmath>
 #include <string>
@@ -40,6 +41,8 @@ constexpr uint64_t DEFAULT_MAX_CACHE_SIZE = 50 * 1024 * 1024;
 constexpr Duration DEFAULT_FADE_DURATION = Milliseconds(300);
 constexpr Seconds CLOCK_SKEW_RETRY_TIMEOUT { 30 };
 
+constexpr UnitBezier DEFAULT_TRANSITION_EASE = { 0, 0, 0.25, 1 };
+
 } // namespace util
 
 namespace debug {
diff --git a/src/mbgl/map/transform.cpp b/src/mbgl/map/transform.cpp
index bf95dd0714..9137f859d3 100644
--- a/src/mbgl/map/transform.cpp
+++ b/src/mbgl/map/transform.cpp
@@ -584,7 +584,7 @@ void Transform::startTransition(const CameraOptions& camera,
         if (t >= 1.0) {
             result = frame(1.0);
         } else {
-            util::UnitBezier ease = animation.easing ? *animation.easing : util::UnitBezier(0, 0, 0.25, 1);
+            util::UnitBezier ease = animation.easing ? *animation.easing : util::DEFAULT_TRANSITION_EASE;
             result = frame(ease.solve(t, 0.001));
         }
         
-- 
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