From 589ab3169f3f09cc3ae8f9e12965fd59ffb70c76 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 8 Jun 2019 18:53:50 +0300
Subject: [PATCH] Add statement for easily offsetting a group of segments

---
 source/sequencer.cpp | 13 +++++++++++--
 source/sequencer.h   |  2 ++
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/source/sequencer.cpp b/source/sequencer.cpp
index 5aa0823..19c4041 100644
--- a/source/sequencer.cpp
+++ b/source/sequencer.cpp
@@ -1,6 +1,7 @@
 #include <cmath>
 #include <msp/core/algorithm.h>
 #include <msp/core/maputils.h>
+#include <msp/core/raii.h>
 #include "animate.h"
 #include "fadeoverlay.h"
 #include "sequencer.h"
@@ -140,13 +141,21 @@ void Sequencer::update_next_event()
 
 Sequencer::Loader::Loader(Sequencer &s, Demo &d):
 	DataFile::ObjectLoader<Sequencer>(s),
-	demo(d)
+	demo(d),
+	base_beat(0.0f)
 {
+	add("base", &Loader::base);
 	add("define_action", &Loader::define_action);
 	add("instant", &Loader::instant);
 	add("segment", &Loader::segment);
 }
 
+void Sequencer::Loader::base(float b)
+{
+	SetForScope<float> set_base(base_beat, base_beat+b);
+	load_sub_with(*this);
+}
+
 void Sequencer::Loader::define_action(const string &n)
 {
 	ActionDefLoader ldr(obj, demo);
@@ -161,7 +170,7 @@ void Sequencer::Loader::instant(float beat)
 
 void Sequencer::Loader::segment(float start, float end)
 {
-	SegmentLoader ldr(obj, start, end, demo);
+	SegmentLoader ldr(obj, base_beat+start, base_beat+end, demo);
 	load_sub_with(ldr);
 }
 
diff --git a/source/sequencer.h b/source/sequencer.h
index 6e98402..1cd1ebc 100644
--- a/source/sequencer.h
+++ b/source/sequencer.h
@@ -22,11 +22,13 @@ public:
 	{
 	private:
 		Demo &demo;
+		float base_beat;
 
 	public:
 		Loader(Sequencer &, Demo &);
 
 	private:
+		void base(float);
 		void define_action(const std::string &);
 		void instant(float);
 		void segment(float, float);
-- 
2.43.0