From: Mikko Rasa <tdb@tdb.fi>
Date: Tue, 30 Apr 2019 09:49:48 +0000 (+0300)
Subject: Move the Action class out of Sequencer
X-Git-Url: http://git.tdb.fi/?p=libs%2Fdemoscene.git;a=commitdiff_plain;h=8ffa42fba0e6a13286b465473fd399cac7c77dcf

Move the Action class out of Sequencer
---

diff --git a/source/action.cpp b/source/action.cpp
new file mode 100644
index 0000000..b7cf082
--- /dev/null
+++ b/source/action.cpp
@@ -0,0 +1,37 @@
+#include "action.h"
+
+InterpolationAction::InterpolationAction(bool h):
+	hermite(h),
+	start_beat(0),
+	duration(0)
+{ }
+
+void InterpolationAction::start(float b, float d)
+{
+	start_beat = b;
+	duration = d;
+	interpolate(0.0f, 0.0f);
+}
+
+void InterpolationAction::tick(float b, float d)
+{
+	if(duration)
+	{
+		float t = (b-start_beat)/duration;
+		float dt = d/duration;
+		if(hermite)
+		{
+			dt = t-dt;
+			t = (3-2*t)*t*t;
+			dt = t-(3-2*dt)*dt*dt;
+		}
+		interpolate(t, dt);
+	}
+	else
+		interpolate(1.0f, 1.0f);
+}
+
+void InterpolationAction::end(float)
+{
+	interpolate(1.0f, 0.0f);
+}
diff --git a/source/action.h b/source/action.h
new file mode 100644
index 0000000..9988854
--- /dev/null
+++ b/source/action.h
@@ -0,0 +1,33 @@
+#ifndef MSP_DEMOSCENE_ACTION_H_
+#define MSP_DEMOSCENE_ACTION_H_
+
+class Action
+{
+protected:
+	Action() { }
+public:
+	virtual ~Action() { }
+
+	virtual void start(float, float) { }
+	virtual void beat(int) { }
+	virtual void tick(float, float) { }
+	virtual void end(float) { }
+};
+
+class InterpolationAction: public Action
+{
+protected:
+	bool hermite;
+	float start_beat;
+	float duration;
+
+	InterpolationAction(bool = false);
+
+public:
+	virtual void start(float, float);
+	virtual void tick(float, float);
+	virtual void end(float);
+	virtual void interpolate(float, float) { }
+};
+
+#endif
diff --git a/source/beatcounter.h b/source/beatcounter.h
index 856c8d7..952ed6b 100644
--- a/source/beatcounter.h
+++ b/source/beatcounter.h
@@ -5,9 +5,9 @@
 #include <msp/gl/objectinstance.h>
 #include <msp/gl/renderable.h>
 #include <msp/gl/text.h>
-#include "sequencer.h"
+#include "action.h"
 
-class BeatCounter: public Msp::GL::Renderable, public Sequencer::Action
+class BeatCounter: public Msp::GL::Renderable, public Action
 {
 private:
 	Msp::GL::Text text;
diff --git a/source/cameracontrol.h b/source/cameracontrol.h
index 455bad6..a822144 100644
--- a/source/cameracontrol.h
+++ b/source/cameracontrol.h
@@ -3,12 +3,12 @@
 
 #include <msp/gl/animationplayer.h>
 #include <msp/gl/camera.h>
-#include "sequencer.h"
+#include "action.h"
 
-class CameraControl: public Sequencer::Action
+class CameraControl: public Action
 {
 public:
-	class SetCamera: public Sequencer::Action
+	class SetCamera: public Action
 	{
 	private:
 		CameraControl &control;
@@ -20,7 +20,7 @@ public:
 		virtual void start(float, float);
 	};
 
-	class AnimateCamera: public Sequencer::Action
+	class AnimateCamera: public Action
 	{
 	private:
 		CameraControl &control;
diff --git a/source/colorfade.cpp b/source/colorfade.cpp
index dfe7472..30d9658 100644
--- a/source/colorfade.cpp
+++ b/source/colorfade.cpp
@@ -3,7 +3,7 @@
 using namespace Msp;
 
 ColorFadeAction::ColorFadeAction(const GL::Color &c):
-	Sequencer::InterpolationAction(true),
+	InterpolationAction(true),
 	end_color(c)
 { }
 
diff --git a/source/colorfade.h b/source/colorfade.h
index ce2e0a6..3b87513 100644
--- a/source/colorfade.h
+++ b/source/colorfade.h
@@ -2,9 +2,9 @@
 #define MSP_DEMOSCENE_COLORFADE_H_
 
 #include <msp/gl/color.h>
-#include "sequencer.h"
+#include "action.h"
 
-class ColorFadeAction: public Sequencer::InterpolationAction
+class ColorFadeAction: public InterpolationAction
 {
 protected:
 	Msp::GL::Color start_color;
diff --git a/source/sequencer.cpp b/source/sequencer.cpp
index 4acad43..d9d3561 100644
--- a/source/sequencer.cpp
+++ b/source/sequencer.cpp
@@ -1,5 +1,6 @@
 #include <cmath>
 #include <msp/core/algorithm.h>
+#include "action.h"
 #include "sequencer.h"
 
 using namespace std;
@@ -125,40 +126,3 @@ void Sequencer::update_next_event()
 		if(i->end_beat>beat)
 			next_event = min(next_event, i->end_beat);
 }
-
-
-Sequencer::InterpolationAction::InterpolationAction(bool h):
-	hermite(h),
-	start_beat(0),
-	duration(0)
-{ }
-
-void Sequencer::InterpolationAction::start(float b, float d)
-{
-	start_beat = b;
-	duration = d;
-	interpolate(0.0f, 0.0f);
-}
-
-void Sequencer::InterpolationAction::tick(float b, float d)
-{
-	if(duration)
-	{
-		float t = (b-start_beat)/duration;
-		float dt = d/duration;
-		if(hermite)
-		{
-			dt = t-dt;
-			t = (3-2*t)*t*t;
-			dt = t-(3-2*dt)*dt*dt;
-		}
-		interpolate(t, dt);
-	}
-	else
-		interpolate(1.0f, 1.0f);
-}
-
-void Sequencer::InterpolationAction::end(float)
-{
-	interpolate(1.0f, 0.0f);
-}
diff --git a/source/sequencer.h b/source/sequencer.h
index 028c5d5..e6eb2b7 100644
--- a/source/sequencer.h
+++ b/source/sequencer.h
@@ -6,38 +6,10 @@
 #include <msp/time/timedelta.h>
 #include <msp/time/timestamp.h>
 
+class Action;
+
 class Sequencer
 {
-public:
-	class Action
-	{
-	protected:
-		Action() { }
-	public:
-		virtual ~Action() { }
-
-		virtual void start(float, float) { }
-		virtual void beat(int) { }
-		virtual void tick(float, float) { }
-		virtual void end(float) { }
-	};
-
-	class InterpolationAction: public Action
-	{
-	protected:
-		bool hermite;
-		float start_beat;
-		float duration;
-
-		InterpolationAction(bool = false);
-
-	public:
-		virtual void start(float, float);
-		virtual void tick(float, float);
-		virtual void end(float);
-		virtual void interpolate(float, float) { }
-	};
-
 private:
 	struct Segment
 	{
diff --git a/source/stage.h b/source/stage.h
index f34e6ae..2933856 100644
--- a/source/stage.h
+++ b/source/stage.h
@@ -3,11 +3,11 @@
 
 #include <msp/gl/pipeline.h>
 #include "cameracontrol.h"
-#include "sequencer.h"
+#include "action.h"
 
 struct Stage
 {
-	class UseInView: public Sequencer::Action
+	class UseInView: public Action
 	{
 	private:
 		Msp::GL::View &view;