feat: expose methods for game state event handling

src/main/java/uulm/teamname/marvelous/gamelibrary/gamelogic/GameInstance.java

@@ -2,6 +2,7 @@ package uulm.teamname.marvelous.gamelibrary.gamelogic;
 
 import uulm.teamname.marvelous.gamelibrary.IntVector2;
 import uulm.teamname.marvelous.gamelibrary.events.Event;
+import uulm.teamname.marvelous.gamelibrary.events.EventType;
 import uulm.teamname.marvelous.gamelibrary.requests.Request;
 
 import java.util.Observer;
@@ -66,6 +67,22 @@ public class GameInstance {
         return manager.processRequests(requests, false);
     }
 
+    /**
+     * Produces a {@link EventType#GamestateEvent} for the current {@link GameState}.
+     * @return The resulting event
+     */
+    public Event getGameStateEvent() {
+        return GameLogic.buildGameStateEvent(_state);
+    }
+
+    /**
+     * Restores the current {@link GameState} based on the given one.
+     * @param state The state to restore from
+     */
+    public void setGameState(GameState state) {
+        _state.restore(state);
+    }
+
     /**
      * Applies an array of {@link Event}s to the game state.
      * @param events The events to apply.