Camera is now using Animate2 and it's mostly working, but there's a few more refactors needed.

tools/arena.cpp

@@ -50,6 +50,7 @@ int main(int, char*[]) {
   dbc::check(main->$world == world, "GameDB::current_world doesn't match boss fight world.");
 
   while(!main->in_state(boss::State::END)) {
+    dbc::log("IDIOT! make this an update.");
     main->$ui.$arena.tick();
     main->render(window);
 

tools/storyboard.cpp

@@ -30,6 +30,9 @@ int main(int, char*[]) {
   main.init();
 
   while(main.playing()) {
+    main.update();
+    main.render(window);
+
     while(const auto ev = window.pollEvent()) {
       auto gui_ev = router.process_event(ev);
       auto mouse_pos = window.mapPixelToCoords(router.position);
@@ -41,7 +44,6 @@ int main(int, char*[]) {
       }
     }
 
-    main.render(window);
     window.display();
   }