diff -r ed1d52c5aa94 -r 763d3961400b project_files/Android-build/SDL-android-project/src/org/hedgewars/hedgeroid/RoomStateManager.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/project_files/Android-build/SDL-android-project/src/org/hedgewars/hedgeroid/RoomStateManager.java	Sat Aug 18 00:47:51 2012 +0200
@@ -0,0 +1,70 @@
+package org.hedgewars.hedgeroid;
+
+import org.hedgewars.hedgeroid.Datastructures.MapRecipe;
+import org.hedgewars.hedgeroid.Datastructures.Scheme;
+import org.hedgewars.hedgeroid.Datastructures.Weaponset;
+
+/**
+ * This interface is supposed to abstract the handling of room state for several fragments
+ * that can display and manipulate it. The purpose of this is to allow using these fragments
+ * both for setting up networked and local games, despite the fact that for local games
+ * the settings can be changed immediately in memory, while they have to be sent out to the
+ * server for networked games.
+ * 
+ * If/when the state changes as result of calling one of the "changeX" functions, that will
+ * also trigger the corresponding change listener method. There is no guarantee that calling
+ * a changeX method will actually change the setting (e.g. if you're not room chief).
+ * 
+ * For local games, getChiefStatus is always true.
+ * 
+ * Implementations of this interface are probably not thread safe and should only be used on
+ * the UI thread.
+ */
+public interface RoomStateManager {
+	// Query current state
+	MapRecipe getMapRecipe();
+	boolean getChiefStatus();
+	Scheme getScheme();
+	String getGameStyle();
+	Weaponset getWeaponset();
+	
+	// Manipulate state
+	void changeMapRecipe(MapRecipe map);
+	void changeMapTheme(String theme);
+
+	/**
+	 * This function sets both the map's name and generator. There is no function
+	 * to change them independendly since e.g. the QtFrontend relies on them being
+	 * consistent.
+	 * 
+	 * If the name parameter is equal to one of the MapRecipe.MAPNAME_REGULAR, MAPNAME_MAZE
+	 * or MAPNAME_DRAWN constants, the map generator is set accordingly. Otherwise, the
+	 * map generator is set to represent a mapfile. The map's name is always set to
+	 * the parameter.
+	 */
+	void changeMapNameAndGenerator(String mapName);
+	void changeMapTemplate(int template);
+	void changeMazeSize(int mazeSize);
+	void changeMapSeed(String seed);
+	void changeMapDrawdata(byte[] drawdata);
+	
+	void changeScheme(Scheme scheme);
+	void changeGameStyle(String style);
+	void changeWeaponset(Weaponset weaponset);
+	
+	// Observe state
+	void registerObserver(Observer observer);
+	void unregisterObserver(Observer observer);
+	
+	public interface Observer {
+		void onMapChanged(MapRecipe recipe);
+		void onChiefStatusChanged(boolean isChief);
+		void onSchemeChanged(Scheme scheme);
+		void onGameStyleChanged(String gameStyle);
+		void onWeaponsetChanged(Weaponset weaponset);
+	}
+	
+	public interface Provider {
+		RoomStateManager getRoomStateManager();
+	}
+}