From: Mikko Rasa <tdb@tdb.fi>
Date: Tue, 4 Jun 2019 14:13:59 +0000 (+0300)
Subject: Store a Transform in keyframes instead of a Matrix
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=a4549c55a6d47129bd9e42c6a49a671b759ce6d9

Store a Transform in keyframes instead of a Matrix

This is the first step towards curve-based animations and finer control
over which values are animated.
---

diff --git a/source/keyframe.cpp b/source/keyframe.cpp
index 708fa22b..8eba1729 100644
--- a/source/keyframe.cpp
+++ b/source/keyframe.cpp
@@ -1,7 +1,6 @@
 #include <msp/datafile/collection.h>
 #include "keyframe.h"
 #include "pose.h"
-#include "transform.h"
 
 using namespace std;
 
@@ -15,9 +14,14 @@ KeyFrame::KeyFrame()
 KeyFrame::~KeyFrame()
 { }
 
+void KeyFrame::set_transform(const Transform &t)
+{
+	transform = t;
+}
+
 void KeyFrame::set_matrix(const Matrix &m)
 {
-	matrix = m;
+	transform = Transform::from_matrix(m);
 }
 
 void KeyFrame::set_pose(const Pose &p)
@@ -78,29 +82,27 @@ void KeyFrame::Loader::pose_inline()
 
 void KeyFrame::Loader::position(float x, float y, float z)
 {
-	obj.matrix.translate(x, y, z);
+	obj.transform.set_position(Vector3(x, y, z));
 }
 
 void KeyFrame::Loader::rotation(float a, float x, float y, float z)
 {
-	obj.matrix.rotate_deg(a, x, y, z);
+	obj.transform.set_rotation(Transform::Angle::from_degrees(a), Vector3(x, y, z));
 }
 
 void KeyFrame::Loader::scaling_uniform(float s)
 {
-	obj.matrix.scale(s);
+	obj.transform.set_scale(s);
 }
 
 void KeyFrame::Loader::scaling(float x, float y, float z)
 {
-	obj.matrix.scale(x, y, z);
+	obj.transform.set_scale(Vector3(x, y, z));
 }
 
 void KeyFrame::Loader::transform()
 {
-	Transform trn;
-	load_sub(trn);
-	obj.matrix = trn.to_matrix();
+	load_sub(obj.transform);
 }
 
 void KeyFrame::Loader::uniforms()
diff --git a/source/keyframe.h b/source/keyframe.h
index 88e85214..4b985ca7 100644
--- a/source/keyframe.h
+++ b/source/keyframe.h
@@ -4,6 +4,7 @@
 #include <msp/core/refptr.h>
 #include <msp/datafile/objectloader.h>
 #include "matrix.h"
+#include "transform.h"
 
 namespace Msp {
 namespace GL {
@@ -57,7 +58,7 @@ public:
 	typedef std::map<std::string, AnimatedUniform> UniformMap;
 
 private:
-	Matrix matrix;
+	Transform transform;
 	UniformMap uniforms;
 	RefPtr<const Pose> pose;
 
@@ -65,9 +66,11 @@ public:
 	KeyFrame();
 	~KeyFrame();
 
+	void set_transform(const Transform &);
 	void set_matrix(const Matrix &);
 	void set_pose(const Pose &);
-	const Matrix &get_matrix() const { return matrix; }
+	const Transform &get_transform() const { return transform; }
+	Matrix get_matrix() const { return transform.to_matrix(); }
 	const UniformMap &get_uniforms() const { return uniforms; }
 	const Pose *get_pose() const { return pose.get(); }
 };