From 4b4d2a48048268d2ad48bafbce8647af8088573f Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 28 Apr 2018 17:40:37 +0300
Subject: [PATCH] Make Animation::Iterator assignable

---
 source/animation.cpp | 20 ++++++++++----------
 source/animation.h   |  2 +-
 2 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/source/animation.cpp b/source/animation.cpp
index 1e2dda90..35d2ae7a 100644
--- a/source/animation.cpp
+++ b/source/animation.cpp
@@ -218,8 +218,8 @@ Animation::UniformInfo::UniformInfo(const string &n, unsigned s):
 
 
 Animation::Iterator::Iterator(const Animation &a):
-	animation(a),
-	iter(animation.keyframes.begin()),
+	animation(&a),
+	iter(animation->keyframes.begin()),
 	end(false)
 { }
 
@@ -230,10 +230,10 @@ Animation::Iterator &Animation::Iterator::operator+=(const Time::TimeDelta &t)
 	{
 		KeyFrameList::const_iterator next = iter;
 		++next;
-		if(next==animation.keyframes.end())
+		if(next==animation->keyframes.end())
 		{
-			if(animation.looping)
-				next = animation.keyframes.begin();
+			if(animation->looping)
+				next = animation->keyframes.begin();
 			else
 			{
 				end = true;
@@ -264,10 +264,10 @@ KeyFrame::AnimatedUniform Animation::Iterator::get_uniform(unsigned i) const
 		if(iter->uniforms.size()>i)
 			return iter->uniforms[i];
 		else
-			return KeyFrame::AnimatedUniform(animation.uniforms[i].size, 0.0f);
+			return KeyFrame::AnimatedUniform(animation->uniforms[i].size, 0.0f);
 	}
 
-	unsigned size = animation.uniforms[i].size;
+	unsigned size = animation->uniforms[i].size;
 	float t = time_since_keyframe/iter->delta_t;
 	KeyFrame::AnimatedUniform result(size, 0.0f);
 	for(unsigned j=0; j<size; ++j)
@@ -277,9 +277,9 @@ KeyFrame::AnimatedUniform Animation::Iterator::get_uniform(unsigned i) const
 
 Matrix Animation::Iterator::get_pose_matrix(unsigned link) const
 {
-	if(!animation.armature)
+	if(!animation->armature)
 		throw invalid_operation("Animation::Iterator::get_pose_matrix");
-	if(link>animation.armature->get_max_link_index())
+	if(link>animation->armature->get_max_link_index())
 		throw out_of_range("Animation::Iterator::get_pose_matrix");
 
 	if(!iter->prev)
@@ -293,7 +293,7 @@ Matrix Animation::Iterator::get_pose_matrix(unsigned link) const
 	// We must redo the base point correction since interpolation throws if off
 	// XXX This should probably be done on local matrices
 	Matrix result = iter->pose_matrices[link].get(time_since_keyframe/iter->delta_t);
-	const Vector3 &base = animation.armature->get_link(link).get_base();
+	const Vector3 &base = animation->armature->get_link(link).get_base();
 	Vector3 new_base = result*base;
 	result = Matrix::translation(base-new_base)*result;
 	return result;
diff --git a/source/animation.h b/source/animation.h
index 1ae571e7..32a06075 100644
--- a/source/animation.h
+++ b/source/animation.h
@@ -87,7 +87,7 @@ public:
 	class Iterator
 	{
 	private:
-		const Animation &animation;
+		const Animation *animation;
 		KeyFrameList::const_iterator iter;
 		Time::TimeDelta time_since_keyframe;
 		bool end;
-- 
2.45.2