ADD player state tracking

controllers/info_controller.py

@@ -0,0 +1,8 @@
+class InfoController:
+    def __init__(self, info_renderer, player_controller):
+        self.info_renderer = info_renderer
+        self.player_controller = player_controller
+
+    def update(self, event):
+        self.info_renderer.selected_player = self.player_controller.selected_player
+