Restructuring

src/main/java/se/urmo/game/state/GameStateManager.java

@@ -0,0 +1,35 @@
+package se.urmo.game.state;
+
+import se.urmo.game.Game;
+
+import java.awt.*;
+import java.util.HashMap;
+import java.util.Map;
+
+public class GameStateManager {
+    private final Game game;
+    private Map<GameStateType, GameState> states = new HashMap<>();
+    private GameState currentState;
+
+    public GameStateManager(Game game) {
+        this.game = game;
+        states.put(GameStateType.PLAYING, new PlayingState(game, this));
+        setState(GameStateType.PLAYING);
+    }
+
+    private void setState(GameStateType type) {
+        currentState = states.get(type);
+    }
+
+    public void update() {
+        currentState.update();
+    }
+
+    public void render(Graphics2D g) {
+        currentState.render(g);
+    }
+
+    public GameState getCurrentState() {
+        return currentState;
+    }
+}