Fix backing out to main menu

docs/src/progress/renderertodo.md

@@ -1093,6 +1093,10 @@ Add engine logo to title menu
 Use STBttf for font loading/remove dependency on java.awt.fonts
 Fix font height lookups in string carousel, text input, and word
 Fix invalid audio source ID bug
+Up threshold on tests for approximate color matching
+Refactor signal service subscription mechanism
+Add main thread signal service
+Fix backing out to main menu
 
 
 # TODO
@@ -1119,10 +1123,6 @@ Implement gadgets
   - Torch
   - Throwable potions
 
-Ability to fully reload game engine state without exiting client
- - Back out to main menu and load a new level without any values persisting
- - Receive a teleport packet from server and flush all game state before requesting state from server again
-
 Bug Fixes
  - Fix hitbox placement does not scale with entity scale on server
  - Fix not all grass tiles update when updating a nearby voxel (ie it doesn't go into negative coordinates to scan for foliage updates)

src/main/java/electrosphere/client/entity/particle/ParticleService.java

@@ -9,6 +9,7 @@ import electrosphere.client.entity.instance.InstanceTemplate;
 import electrosphere.client.entity.instance.InstancedEntityUtils;
 import electrosphere.engine.assetmanager.AssetDataStrings;
 import electrosphere.engine.signal.Signal;
+import electrosphere.engine.signal.Signal.SignalType;
 import electrosphere.engine.signal.SignalServiceImpl;
 import electrosphere.entity.DrawableUtils;
 import electrosphere.entity.Entity;
@@ -73,7 +74,12 @@ public class ParticleService extends SignalServiceImpl {
      * Constructor
      */
     public ParticleService() {
-        super("ParticleService");
+        super(
+            "ParticleService",
+            new SignalType[]{
+                SignalType.RENDERING_ENGINE_READY,
+            }
+        );
     }
 
     @Override

src/main/java/electrosphere/client/ui/menu/ingame/MenuGeneratorsInGame.java

@@ -7,8 +7,6 @@ import electrosphere.client.ui.menu.WindowUtils;
 import electrosphere.controls.ControlHandler.ControlsState;
 import electrosphere.engine.Globals;
 import electrosphere.engine.Main;
-import electrosphere.engine.loadingthreads.LoadingThread;
-import electrosphere.engine.loadingthreads.LoadingThread.LoadingThreadType;
 import electrosphere.engine.signal.Signal.SignalType;
 import electrosphere.entity.Entity;
 import electrosphere.entity.EntityDataStrings;
@@ -77,7 +75,7 @@ public class MenuGeneratorsInGame {
 
         //Return to main menu
         div.addChild(Button.createButton("Return To Main Menu", () -> {
-            Globals.threadManager.start(new LoadingThread(LoadingThreadType.RETURN_TITLE_MENU));
+            Globals.signalSystem.post(SignalType.ENGINE_RETURN_TO_TITLE);
         }));
         
         

src/main/java/electrosphere/engine/Globals.java

@@ -39,7 +39,7 @@ import electrosphere.engine.loadingthreads.InitialAssetLoading;
 import electrosphere.engine.profiler.Profiler;
 import electrosphere.engine.service.ServiceManager;
 import electrosphere.engine.signal.SignalSystem;
-import electrosphere.engine.signal.Signal.SignalType;
+import electrosphere.engine.signal.sync.MainThreadSignalService;
 import electrosphere.engine.threads.ThreadManager;
 import electrosphere.engine.time.Timekeeper;
 import electrosphere.entity.Entity;
@@ -329,6 +329,9 @@ public class Globals {
     
     //script engine
     public static ScriptEngine scriptEngine;
+
+    //services
+    public static MainThreadSignalService mainThreadSignalService;
     
     //client scene management
     public static Scene clientScene;
@@ -534,6 +537,7 @@ public class Globals {
         Globals.elementService = (ElementService)serviceManager.registerService(new ElementService());
         Globals.particleService = (ParticleService)serviceManager.registerService(new ParticleService());
         Globals.scriptEngine = (ScriptEngine)serviceManager.registerService(new ScriptEngine());
+        Globals.mainThreadSignalService = (MainThreadSignalService)serviceManager.registerService(new MainThreadSignalService());
         serviceManager.instantiate();
         //
         //End service manager
@@ -541,11 +545,10 @@ public class Globals {
 
         //
         //Register all signals
-        Globals.signalSystem.registerService(SignalType.YOGA_APPLY, Globals.elementService);
-        Globals.signalSystem.registerService(SignalType.YOGA_DESTROY, Globals.elementService);
-        Globals.signalSystem.registerService(SignalType.UI_MODIFICATION, Globals.elementService);
-        Globals.signalSystem.registerService(SignalType.RENDERING_ENGINE_READY, Globals.particleService);
-        Globals.signalSystem.registerService(SignalType.SCRIPT_RECOMPILE, Globals.scriptEngine);
+        Globals.signalSystem.registerService(Globals.elementService);
+        Globals.signalSystem.registerService(Globals.particleService);
+        Globals.signalSystem.registerService(Globals.scriptEngine);
+        Globals.signalSystem.registerService(Globals.mainThreadSignalService);
 
 
     }

src/main/java/electrosphere/engine/Main.java

@@ -15,6 +15,7 @@ import electrosphere.controls.ControlHandler.ControlsState;
 import electrosphere.engine.cli.CLIParser;
 import electrosphere.engine.loadingthreads.LoadingThread;
 import electrosphere.engine.loadingthreads.LoadingThread.LoadingThreadType;
+import electrosphere.engine.signal.SynchronousSignalHandling;
 import electrosphere.engine.time.Timekeeper;
 import electrosphere.game.server.world.MacroData;
 import electrosphere.logger.LoggerInterface;
@@ -298,7 +299,7 @@ public class Main {
             ///
             ///    S Y N C H R O N O U S      S I G N A L      H A N D L I N G
             ///
-            Globals.scriptEngine.handleAllSignals();
+            SynchronousSignalHandling.runMainThreadSignalHandlers();
 
             ///
             ///    S C R I P T    E N G I N E

src/main/java/electrosphere/engine/loadingthreads/MainMenuLoading.java

@@ -7,7 +7,6 @@ import electrosphere.engine.Globals;
 import electrosphere.engine.signal.Signal.SignalType;
 import electrosphere.engine.threads.LabeledThread.ThreadLabel;
 import electrosphere.renderer.ui.elements.Window;
-import electrosphere.server.datacell.RealmManager;
 
 /**
  * Loading thread that returns the client to the main menu
@@ -19,7 +18,7 @@ public class MainMenuLoading {
      * Resets all state to main menu
      * @param params not necessary
      */
-    protected static void returnToMainMenu(Object[] params){
+    public static void returnToMainMenu(Object[] params){
         //
         //stop rendering game
         Globals.RENDER_FLAG_RENDER_SHADOW_MAP = false;
@@ -59,7 +58,8 @@ public class MainMenuLoading {
         Globals.server.close();
         Globals.server = null;
         Globals.serverSynchronizationManager = null;
-        Globals.realmManager = new RealmManager();
+        Globals.realmManager.reset();
+        Globals.realmManager = null;
         Globals.macroSimulation = null;
     }
 

src/main/java/electrosphere/engine/signal/Signal.java

@@ -16,6 +16,7 @@ public class Signal {
         //CORE ENGINE
         //
         ENGINE_SHUTDOWN,
+        ENGINE_RETURN_TO_TITLE,
 
         //
         //RENDERING

src/main/java/electrosphere/engine/signal/SignalService.java

@@ -1,6 +1,9 @@
 package electrosphere.engine.signal;
 
+import java.util.Collection;
+
 import electrosphere.engine.service.Service;
+import electrosphere.engine.signal.Signal.SignalType;
 
 /**
  * A service that can receive a signal
@@ -13,4 +16,10 @@ public interface SignalService extends Service {
      */
     public void post(Signal signal);
 
+    /**
+     * Gets the collection of signal types that this service wants to subscribe to
+     * @return The collection of signal types
+     */
+    public Collection<SignalType> getSubscriptionTargets();
+
 }

src/main/java/electrosphere/engine/signal/SignalServiceImpl.java

@@ -1,9 +1,12 @@
 package electrosphere.engine.signal;
 
+import java.util.Arrays;
+import java.util.Collection;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.concurrent.Semaphore;
 
+import electrosphere.engine.signal.Signal.SignalType;
 import electrosphere.logger.LoggerInterface;
 
 /**
@@ -26,13 +29,20 @@ public class SignalServiceImpl implements SignalService {
      */
     String serviceName;
 
+    /**
+     * The list of signal types that this service wants to listen for
+     */
+    List<SignalType> targetTypes;
+
 
     /**
      * Constructor, used to require certain fields be provided to this service instance
      * @param serviceName The name of the service
+     * @param types The types of signals this service wants to subscribe to
      */
-    public SignalServiceImpl(String serviceName){
+    public SignalServiceImpl(String serviceName, SignalType[] types){
         this.serviceName = serviceName;
+        this.targetTypes = Arrays.asList(types);
     }
 
     @Override
@@ -108,5 +118,10 @@ public class SignalServiceImpl implements SignalService {
     public boolean handle(Signal signal){
         throw new UnsupportedOperationException("Unimplemented method 'getName'");
     }
+
+    @Override
+    public Collection<SignalType> getSubscriptionTargets() {
+        return this.targetTypes;
+    }
     
 }

src/main/java/electrosphere/engine/signal/SignalSystem.java

@@ -51,7 +51,30 @@ public class SignalSystem implements Service {
      * @param signalType The type of signal
      * @param service The service to associate with that signal type
      */
-    public void registerService(SignalType signalType, SignalService service){
+    public void registerService(SignalService service){
+        systemLock.acquireUninterruptibly();
+        LoggerInterface.loggerEngine.DEBUG("[SignalSystem] Register signal service " + service.getName());
+        for(SignalType signalType : service.getSubscriptionTargets()){
+            if(typeServiceMap.containsKey(signalType)){
+                Set<SignalService> services = this.typeServiceMap.get(signalType);
+                if(!services.contains(service)){
+                    services.add(service);
+                }
+            } else {
+                Set<SignalService> services = new HashSet<SignalService>();
+                services.add(service);
+                this.typeServiceMap.put(signalType, services);
+            }
+        }
+        systemLock.release();
+    }
+
+    /**
+     * Registers a service to a type of signal
+     * @param signalType The type of signal
+     * @param service The service to associate with that signal type
+     */
+    public void registerServiceToSignal(SignalType signalType, SignalService service){
         systemLock.acquireUninterruptibly();
         LoggerInterface.loggerEngine.DEBUG("[SignalSystem] Register signal service " + service.getName());
         if(typeServiceMap.containsKey(signalType)){
@@ -72,7 +95,7 @@ public class SignalSystem implements Service {
      * @param signalType The type of signal
      * @param service The signal service to unassociate from that signal type
      */
-    public void deregisterService(SignalType signalType, SignalService service){
+    public void deregisterServiceToSignal(SignalType signalType, SignalService service){
         systemLock.acquireUninterruptibly();
         LoggerInterface.loggerEngine.DEBUG("[SignalSystem] Deregister signal service " + service.getName());
         if(typeServiceMap.containsKey(signalType)){

src/main/java/electrosphere/engine/signal/SynchronousSignalHandling.java

@@ -0,0 +1,18 @@
+package electrosphere.engine.signal;
+
+import electrosphere.engine.Globals;
+
+/**
+ * Synchronously handles signals
+ */
+public class SynchronousSignalHandling {
+    
+    /**
+     * Runs the main thread signal handlers
+     */
+    public static void runMainThreadSignalHandlers(){
+        Globals.scriptEngine.handleAllSignals();
+        Globals.mainThreadSignalService.handleAllSignals();
+    }
+
+}

src/main/java/electrosphere/engine/signal/sync/MainThreadSignalService.java

@@ -0,0 +1,38 @@
+package electrosphere.engine.signal.sync;
+
+import electrosphere.engine.loadingthreads.MainMenuLoading;
+import electrosphere.engine.signal.Signal;
+import electrosphere.engine.signal.Signal.SignalType;
+import electrosphere.engine.signal.SignalServiceImpl;
+import electrosphere.logger.LoggerInterface;
+
+public class MainThreadSignalService extends SignalServiceImpl {
+    
+    /**
+     * Constructor
+     */
+    public MainThreadSignalService() {
+        super(
+            "MainThreadSignalService",
+            new SignalType[]{
+                SignalType.ENGINE_RETURN_TO_TITLE,
+            }
+        );
+    }
+
+    @Override
+    public boolean handle(Signal signal){
+        boolean rVal = false;
+        switch(signal.getType()){
+            case ENGINE_RETURN_TO_TITLE: {
+                MainMenuLoading.returnToMainMenu(null);
+                rVal = true;
+            } break;
+            default: {
+                LoggerInterface.loggerEngine.WARNING("MainThreadSignalService received signal that it does not have handling for! " + signal);
+            } break;
+        }
+        return rVal;
+    }
+
+}

src/main/java/electrosphere/engine/threads/ThreadManager.java

@@ -112,7 +112,7 @@ public class ThreadManager {
             Globals.server.close();
         }
 
-        if(Globals.realmManager.getRealms() != null){
+        if(Globals.realmManager != null && Globals.realmManager.getRealms() != null){
             for(Realm realm : Globals.realmManager.getRealms()){
                 if(realm.getServerWorldData() != null && realm.getServerWorldData().getServerTerrainManager() != null){
                     realm.getServerWorldData().getServerTerrainManager().closeThreads();

src/main/java/electrosphere/net/server/ServerConnectionHandler.java

@@ -8,7 +8,6 @@ import electrosphere.net.parser.net.message.NetworkMessage;
 import electrosphere.net.parser.net.message.ServerMessage;
 import electrosphere.net.parser.net.raw.NetworkParser;
 import electrosphere.net.server.player.Player;
-import electrosphere.util.CodeUtils;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -321,7 +320,7 @@ public class ServerConnectionHandler implements Runnable {
             TimeUnit.MILLISECONDS.sleep(1);
         } catch (InterruptedException ex) {
             //silently ignore
-            CodeUtils.todo(ex, "Handle sleep interrupt on server connection");
+            // CodeUtils.todo(ex, "Handle sleep interrupt on server connection");
         }
         return rVal;
     }

src/main/java/electrosphere/renderer/ui/ElementService.java

@@ -13,6 +13,7 @@ import org.joml.Vector2i;
 
 import electrosphere.engine.Globals;
 import electrosphere.engine.signal.Signal;
+import electrosphere.engine.signal.Signal.SignalType;
 import electrosphere.engine.signal.SignalServiceImpl;
 import electrosphere.renderer.ui.elements.Window;
 import electrosphere.renderer.ui.elementtypes.ContainerElement;
@@ -39,7 +40,14 @@ public class ElementService extends SignalServiceImpl {
      * Constructor
      */
     public ElementService() {
-        super("ElementService");
+        super(
+            "ElementService",
+            new SignalType[]{
+                SignalType.YOGA_APPLY,
+                SignalType.YOGA_DESTROY,
+                SignalType.UI_MODIFICATION,
+            }
+        );
     }
 
     Map<String,Element> elementMap = new ConcurrentHashMap<String,Element>();

src/main/java/electrosphere/script/ScriptEngine.java

@@ -28,6 +28,7 @@ import electrosphere.client.ui.menu.tutorial.TutorialMenus;
 import electrosphere.engine.Globals;
 import electrosphere.engine.Main;
 import electrosphere.engine.signal.Signal;
+import electrosphere.engine.signal.Signal.SignalType;
 import electrosphere.engine.signal.SignalServiceImpl;
 import electrosphere.logger.LoggerInterface;
 import electrosphere.script.translation.JSServerUtils;
@@ -134,7 +135,12 @@ public class ScriptEngine extends SignalServiceImpl {
      * Constructor
      */
     public ScriptEngine(){
-        super("ScriptEngine");
+        super(
+            "ScriptEngine",
+            new SignalType[]{
+                SignalType.SCRIPT_RECOMPILE,
+            }
+        );
         sourceMap = new HashMap<String,Source>();
         this.fs = FileSystems.getDefault();
         try {

src/main/java/electrosphere/server/datacell/RealmManager.java

@@ -209,6 +209,11 @@ public class RealmManager {
      * Resets the realm manager
      */
     public void reset(){
+        for(Realm realm : this.realms){
+            if(realm.getServerWorldData() != null && realm.getServerWorldData().getServerTerrainManager() != null){
+                realm.getServerWorldData().getServerTerrainManager().closeThreads();
+            }
+        }
         this.realms.clear();
         this.entityToRealmMap.clear();
         this.playerToRealmMap.clear();

src/test/java/electrosphere/engine/signal/SignalSystemTests.java

@@ -36,7 +36,7 @@ public class SignalSystemTests {
 
         SignalService service = Mockito.mock(SignalService.class);
 
-        signalSystem.registerService(SignalType.YOGA_APPLY, service);
+        signalSystem.registerServiceToSignal(SignalType.YOGA_APPLY, service);
     }
 
     
@@ -46,7 +46,7 @@ public class SignalSystemTests {
         signalSystem.init();
 
         SignalService service = Mockito.mock(SignalService.class);
-        signalSystem.registerService(SignalType.YOGA_APPLY, service);
+        signalSystem.registerServiceToSignal(SignalType.YOGA_APPLY, service);
 
         signalSystem.post(SignalType.YOGA_APPLY);
 
@@ -60,8 +60,8 @@ public class SignalSystemTests {
 
         SignalService service = Mockito.mock(SignalService.class);
         SignalService service2 = Mockito.mock(SignalService.class);
-        signalSystem.registerService(SignalType.YOGA_APPLY, service);
-        signalSystem.registerService(SignalType.YOGA_APPLY, service2);
+        signalSystem.registerServiceToSignal(SignalType.YOGA_APPLY, service);
+        signalSystem.registerServiceToSignal(SignalType.YOGA_APPLY, service2);
 
         signalSystem.post(SignalType.YOGA_APPLY);
 
@@ -77,9 +77,9 @@ public class SignalSystemTests {
         SignalService service = Mockito.mock(SignalService.class);
         SignalService service2 = Mockito.mock(SignalService.class);
         SignalService service3 = Mockito.mock(SignalService.class);
-        signalSystem.registerService(SignalType.YOGA_APPLY, service);
-        signalSystem.registerService(SignalType.YOGA_APPLY, service2);
-        signalSystem.registerService(SignalType.ENGINE_SHUTDOWN, service3);
+        signalSystem.registerServiceToSignal(SignalType.YOGA_APPLY, service);
+        signalSystem.registerServiceToSignal(SignalType.YOGA_APPLY, service2);
+        signalSystem.registerServiceToSignal(SignalType.ENGINE_SHUTDOWN, service3);
 
         signalSystem.post(SignalType.YOGA_APPLY);
 
@@ -95,8 +95,8 @@ public class SignalSystemTests {
         signalSystem.init();
 
         SignalService service = Mockito.mock(SignalService.class);
-        signalSystem.registerService(SignalType.YOGA_APPLY, service);
-        signalSystem.deregisterService(SignalType.YOGA_APPLY, service);
+        signalSystem.registerServiceToSignal(SignalType.YOGA_APPLY, service);
+        signalSystem.deregisterServiceToSignal(SignalType.YOGA_APPLY, service);
         signalSystem.post(SignalType.YOGA_APPLY);
 
         Mockito.verify(service, Mockito.never()).post(signalCaptor.capture());

src/test/java/electrosphere/test/testutils/Assertions.java

@@ -20,7 +20,7 @@ public class Assertions {
     /**
      * The threshold at which we say the colors are 'close enough'
      */
-    static final int COLOR_COMPARE_THRESHOLD = 3;
+    static final int COLOR_COMPARE_THRESHOLD = 4;
 
     /**
      * A very small number for comparisons