Implemented some fixes to collider. Made pickables use collider. Partial implementation of stackable objects.

src/controller/FarmlandsGame.cpp

@@ -96,6 +96,11 @@ void FarmlandsGame::onPostRender()
 	GameState::current().scene->root.onPostRender();
 }
 
+void FarmlandsGame::onFrameEnded()
+{
+	GameState::current().scene->root.onFrameEnded();
+}
+
 void FarmlandsGame::stop()
 {
 	m_running = false;
@@ -124,6 +129,7 @@ int FarmlandsGame::run()
 		onPreRender();
 		onRender();
 		onPostRender();
+		onFrameEnded();
 	}
 
 	// Cleanup

src/controller/FarmlandsGame.h

@@ -30,6 +30,7 @@ namespace controller {
 		void onPreRender();
 		void onRender();
 		void onPostRender();
+		void onFrameEnded();
 
 		void stop();