From cf8801701a2ac3dfd57f5df0e216159dafad6f5e Mon Sep 17 00:00:00 2001
From: Aloshi <allofquist@yahoo.com>
Date: Thu, 1 May 2014 12:57:31 -0500
Subject: [PATCH] Improved "slide" transition. Still not happy with the
 implementation, it's not a true carousel like the SystemList.

---
 src/views/SystemView.cpp     |  5 ++++-
 src/views/SystemView.h       |  2 +-
 src/views/ViewController.cpp | 27 ++++++++++++++++++++++++---
 src/views/ViewController.h   |  1 +
 4 files changed, 30 insertions(+), 5 deletions(-)

diff --git a/src/views/SystemView.cpp b/src/views/SystemView.cpp
index 6707742cb..f910b9b98 100644
--- a/src/views/SystemView.cpp
+++ b/src/views/SystemView.cpp
@@ -79,9 +79,12 @@ void SystemView::populate()
 	}
 }
 
-void SystemView::goToSystem(SystemData* system)
+void SystemView::goToSystem(SystemData* system, bool animate)
 {
 	setCursor(system);
+
+	if(!animate)
+		finishAnimation(0);
 }
 
 bool SystemView::input(InputConfig* config, Input input)
diff --git a/src/views/SystemView.h b/src/views/SystemView.h
index 65664ff65..09aee10bc 100644
--- a/src/views/SystemView.h
+++ b/src/views/SystemView.h
@@ -22,7 +22,7 @@ class SystemView : public IList<SystemViewData, SystemData*>
 public:
 	SystemView(Window* window);
 
-	void goToSystem(SystemData* system);
+	void goToSystem(SystemData* system, bool animate);
 
 	bool input(InputConfig* config, Input input) override;
 	void update(int deltaTime) override;
diff --git a/src/views/ViewController.cpp b/src/views/ViewController.cpp
index f1a3de88b..9698502e0 100644
--- a/src/views/ViewController.cpp
+++ b/src/views/ViewController.cpp
@@ -27,13 +27,23 @@ void ViewController::goToStart()
 	goToSystemView(SystemData::sSystemVector.at(0));
 }
 
+int ViewController::getSystemId(SystemData* system)
+{
+	std::vector<SystemData*>& sysVec = SystemData::sSystemVector;
+	return std::find(sysVec.begin(), sysVec.end(), system) - sysVec.begin();
+}
+
 void ViewController::goToSystemView(SystemData* system)
 {
 	mState.viewing = SYSTEM_SELECT;
 	mState.system = system;
 
-	getSystemListView()->goToSystem(system);
-	mCurrentView = getSystemListView();
+	auto systemList = getSystemListView();
+	systemList->setPosition(getSystemId(system) * (float)Renderer::getScreenWidth(), systemList->getPosition().y());
+
+	systemList->goToSystem(system, false);
+	mCurrentView = systemList;
+
 	updateHelpPrompts();
 	playViewTransition();
 }
@@ -56,6 +66,17 @@ void ViewController::goToPrevGameList()
 
 void ViewController::goToGameList(SystemData* system)
 {
+	if(mState.viewing == SYSTEM_SELECT)
+	{
+		// move system list
+		auto sysList = getSystemListView();
+		float offX = sysList->getPosition().x();
+		int sysId = getSystemId(system);
+		sysList->setPosition(sysId * (float)Renderer::getScreenWidth(), sysList->getPosition().y());
+		offX = sysList->getPosition().x() - offX;
+		mCamera.translation().x() -= offX;
+	}
+
 	mState.viewing = GAME_LIST;
 	mState.system = system;
 
@@ -310,7 +331,7 @@ void ViewController::reloadAll()
 		mCurrentView = getGameListView(mState.getSystem());
 	}else if(mState.viewing == SYSTEM_SELECT)
 	{
-		mSystemListView->goToSystem(mState.getSystem());
+		mSystemListView->goToSystem(mState.getSystem(), false);
 		mCurrentView = mSystemListView;
 	}else{
 		goToSystemView(SystemData::sSystemVector.front());
diff --git a/src/views/ViewController.h b/src/views/ViewController.h
index 52f9121f3..aab5f19e4 100644
--- a/src/views/ViewController.h
+++ b/src/views/ViewController.h
@@ -62,6 +62,7 @@ public:
 
 private:
 	void playViewTransition();
+	int getSystemId(SystemData* system);
 
 	std::shared_ptr<IGameListView> getGameListView(SystemData* system);
 	std::shared_ptr<SystemView> getSystemListView();