viewport loading

docs/src/progress/renderertodo.md

@@ -680,6 +680,8 @@ Server synchronization of sprint tree
 Fix potential bad path for item state lookup
 Fix multiple ItemUtils NPE bugs
 Fix AttachUtils NPE bug
+Work on testing stability
+Viewport loading
 
 
 # TODO

src/main/java/electrosphere/auth/AuthenticationManager.java

@@ -15,8 +15,33 @@ import electrosphere.server.db.DatabaseResultRow;
 
 public class AuthenticationManager {
     
+    /**
+     * Tracks whether this is a mock authentication manager or not
+     */
+    boolean isMock = false;
+
+    /**
+     * Private constructor
+     */
+    private AuthenticationManager(){
+
+    }
+
+    /**
+     * Creates an authentication manager
+     * @param mock true if this shoud be a mock manager, false for a real one
+     * @return The authentication manager
+     */
+    public static AuthenticationManager create(boolean mock){
+        AuthenticationManager rVal = new AuthenticationManager();
+        rVal.isMock = mock;
+        return rVal;
+    }
 
     public boolean authenticate(String username, String password){
+        if(isMock){
+            return true;
+        }
         //first we hash the input password
         String hashedPassword = getHashedString(password);
         //then query the database for the username and hash for the input username

src/main/java/electrosphere/client/fluid/cells/FluidCellManager.java

@@ -77,7 +77,9 @@ public class FluidCellManager {
      * @param discreteY The initial discrete position Y coordinate
      */
     public FluidCellManager(ClientTerrainManager clientTerrainManager, int discreteX, int discreteY, int discreteZ){
-        worldBoundDiscreteMax = (int)(Globals.clientWorldData.getWorldBoundMin().x / Globals.clientWorldData.getDynamicInterpolationRatio() * 1.0f);
+        if(Globals.clientWorldData != null){
+            worldBoundDiscreteMax = (int)(Globals.clientWorldData.getWorldBoundMin().x / Globals.clientWorldData.getDynamicInterpolationRatio() * 1.0f);
+        }
         cells = new HashSet<FluidCell>();
         hasNotRequested = new HashSet<String>();
         drawable = new HashSet<String>();

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

@@ -105,16 +105,6 @@ public class Main {
         //init ODE
         OdeHelper.initODE();
         
-        // if(1==1){
-        //     SaveUtils.loadSave("arena");
-        //     Globals.authenticationManager = new AuthenticationManager();
-        //     String rawPass = "testpassword";
-        //     String hashedPassword = AuthenticationManager.getHashedString(rawPass);
-        //     boolean authed = Globals.authenticationManager.authenticate("testuser", hashedPassword);
-        //     System.out.println("Authenticated: " + authed);
-        //     System.exit(0);
-        // }
-        
         //world gen testing
         //gen terrain
         if(Globals.RUN_SIMULATION_ONLY){

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

@@ -73,9 +73,9 @@ public class ClientLoading {
         //init foliage manager
         initFoliageManager();
         //initialize the cell manager (client)
-        initDrawCellManager();
+        initDrawCellManager(true);
         //init the fluid cell manager
-        initFluidCellManager();
+        initFluidCellManager(true);
         //initialize the basic graphical entities of the world (skybox, camera)
         initWorldBaseGraphicalEntities();
         //init arena specific stuff (ie different skybox colors)
@@ -98,6 +98,45 @@ public class ClientLoading {
         Globals.controlHandler.hintUpdateControlState(ControlHandler.ControlsState.MAIN_GAME);
     }
 
+    /**
+     * Loads the viewport
+     */
+    protected static void loadViewport(Object[] params){
+        Window loadingWindow = (Window)Globals.elementService.getWindow(WindowStrings.WINDOW_LOADING);
+        WindowUtils.recursiveSetVisible(Globals.elementService.getWindow(WindowStrings.WINDOW_MENU_MAIN), false);
+        WindowUtils.replaceMainMenuContents(MenuGenerators.createEmptyMainMenu());
+        loadingWindow.setVisible(true);
+        //disable menu input
+        Globals.controlHandler.hintUpdateControlState(ControlHandler.ControlsState.NO_INPUT);
+
+        //init camera
+        Globals.playerCamera = CameraEntityUtils.spawnBasicCameraEntity(new Vector3f(0,0,0), new Vector3f(-1,0,0));
+        //initialize the "real" objects simulation
+        initClientSimulation();
+        //init foliage manager
+        initFoliageManager();
+        //initialize the cell managers (client)
+        initDrawCellManager(false);
+        initFluidCellManager(false);
+
+        //sets micro and macro sims to ready if they exist
+        setSimulationsToReady();
+        //make loading window disappear
+        loadingWindow.setVisible(false);
+        //recapture screen
+        Globals.controlHandler.setRecapture(true);
+        //set rendering flags to main game mode
+        Globals.RENDER_FLAG_RENDER_SHADOW_MAP = true;
+        Globals.RENDER_FLAG_RENDER_SCREEN_FRAMEBUFFER_CONTENT = true;
+        Globals.RENDER_FLAG_RENDER_SCREEN_FRAMEBUFFER = true;
+        Globals.RENDER_FLAG_RENDER_UI = true;
+        Globals.RENDER_FLAG_RENDER_BLACK_BACKGROUND = false;
+        Globals.RENDER_FLAG_RENDER_WHITE_BACKGROUND = false;
+        LoggerInterface.loggerEngine.INFO("[Client]Finished loading main game");
+        //set controls state
+        Globals.controlHandler.hintUpdateControlState(ControlHandler.ControlsState.MAIN_GAME);
+    }
+
 
 
 
@@ -207,9 +246,13 @@ public class ClientLoading {
 
     static final int MAX_DRAW_CELL_WAIT = 1000;
 
-    static void initDrawCellManager(){
+    /**
+     * Inits the drawcell manager
+     * @param blockForInit Blocks the thread until the draw cell manager is ready
+     */
+    static void initDrawCellManager(boolean blockForInit){
         int iterations = 0;
-        while(Globals.clientWorldData == null || Globals.initialAssetLoadingThread.isLoading()){
+        while(blockForInit && (Globals.clientWorldData == null || Globals.initialAssetLoadingThread.isLoading())){
             try {
                 TimeUnit.MILLISECONDS.sleep(10);
                 iterations++;
@@ -232,67 +275,58 @@ public class ClientLoading {
         //Alerts the client simulation that it should start loading terrain
         Globals.clientSimulation.setLoadingTerrain(true);
         //wait for all the terrain data to arrive
-        while(Globals.drawCellManager.containsUnrequestedCell()){
+        while(blockForInit && Globals.drawCellManager.containsUnrequestedCell()){
-//            Globals.drawCellManager.updateInvalidCell();
             try {
                 TimeUnit.MILLISECONDS.sleep(10);
             } catch (InterruptedException ex) {
                 ex.printStackTrace();
             }
-//            System.out.println("invalid cell");
         }
         
-        while(Globals.drawCellManager.containsUndrawableCell()){
+        while(blockForInit && Globals.drawCellManager.containsUndrawableCell()){
-//            Globals.drawCellManager.makeCellDrawable();
             try {
                 TimeUnit.MILLISECONDS.sleep(10);
             } catch (InterruptedException ex) {
                 ex.printStackTrace();
             }
-//            System.out.println("undrawable");
         }
-        
-        // while(Globals.drawCellManager.containsPhysicsNeedingCell()){
-        //     try {
-        //         TimeUnit.MILLISECONDS.sleep(10);
-        //     } catch (InterruptedException ex) {
-        //     }
-        // }
-        // System.out.println("Draw Cell Manager ready");
     }
 
-    static void initFluidCellManager(){
+    /**
-        while(Globals.clientWorldData == null){
+     * Inits the fluid cell manager
+     * @param blockForInit Blocks the thread until the fluid cell manager is ready
+     */
+    static void initFluidCellManager(boolean blockForInit){
+
+        //wait for world data
+        while(blockForInit && Globals.clientWorldData == null){
             try {
                 TimeUnit.MILLISECONDS.sleep(10);
             } catch (InterruptedException ex) {
             }
         }
-        //initialize draw cell manager
-        Globals.fluidCellManager = new FluidCellManager(Globals.clientTerrainManager, 0, 0, 0);
-        //set our draw cell manager to actually generate drawable chunks
-        Globals.fluidCellManager.setGenerateDrawables(true);
-        //Alerts the client simulation that it should start loading terrain
-        Globals.clientSimulation.setLoadingTerrain(true);
-        //wait for all the terrain data to arrive
-        while(Globals.fluidCellManager.containsUnrequestedCell()){
-//            Globals.drawCellManager.updateInvalidCell();
-            try {
-                TimeUnit.MILLISECONDS.sleep(10);
-            } catch (InterruptedException ex) {
-                ex.printStackTrace();
-            }
-//            System.out.println("invalid cell");
-        }
 
-        while(Globals.fluidCellManager.containsUndrawableCell()){
+        //initialize draw cell manager
-//            Globals.drawCellManager.makeCellDrawable();
+        Globals.fluidCellManager = new FluidCellManager(Globals.clientTerrainManager, 0, 0, 0);
+        Globals.fluidCellManager.setGenerateDrawables(true);
+        Globals.clientSimulation.setLoadingTerrain(true);
+
+        //wait for all the terrain data to arrive
+        while(blockForInit && Globals.fluidCellManager.containsUnrequestedCell()){
+            try {
+                TimeUnit.MILLISECONDS.sleep(10);
+            } catch (InterruptedException ex) {
+                ex.printStackTrace();
+            }
+        }
+        
+        //wait for undrawable cells
+        while(blockForInit && Globals.fluidCellManager.containsUndrawableCell()){
             try {
                 TimeUnit.MILLISECONDS.sleep(10);
             } catch (InterruptedException ex) {
                 ex.printStackTrace();
             }
-//            System.out.println("undrawable");
         }
     }
 

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

@@ -40,7 +40,7 @@ public class DebugSPWorldLoading {
 
         LoggerInterface.loggerEngine.INFO("run server: " + Globals.RUN_SERVER + " run client: " + Globals.RUN_CLIENT);
         //init authentication
-        LoadingUtils.initAuthenticationManager();
+        LoadingUtils.initAuthenticationManager(false);
         //initialize the local connection
         Globals.clientUsername = "testuser";
         Globals.clientPassword = AuthenticationManager.getHashedString("testpass");

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

@@ -68,7 +68,7 @@ public class LevelEditorLoading {
 
         LoggerInterface.loggerEngine.INFO("run server: " + Globals.RUN_SERVER + " run client: " + Globals.RUN_CLIENT);
         //init authentication
-        LoadingUtils.initAuthenticationManager();
+        LoadingUtils.initAuthenticationManager(false);
         //initialize the local connection
         Globals.clientUsername = "leveleditor";
         Globals.clientPassword = AuthenticationManager.getHashedString("leveleditor");

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

@@ -38,7 +38,7 @@ public class LevelLoading {
 
         LoggerInterface.loggerEngine.INFO("run server: " + Globals.RUN_SERVER + " run client: " + Globals.RUN_CLIENT);
         //init authentication
-        LoadingUtils.initAuthenticationManager();
+        LoadingUtils.initAuthenticationManager(false);
         //initialize the local connection
         Globals.clientUsername = "leveleditor";
         Globals.clientPassword = AuthenticationManager.getHashedString("leveleditor");

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

@@ -60,6 +60,11 @@ public class LoadingThread extends Thread {
          */
         SCRIPT_ENGINE,
 
+        /**
+         * Load viewport
+         */
+        LOAD_VIEWPORT,
+
     }
     
     /**
@@ -133,6 +138,11 @@ public class LoadingThread extends Thread {
                 EngineInitLoading.loadScriptingEngine(this.params);
             } break;
 
+            //Loads the viewport
+            case LOAD_VIEWPORT: {
+                ViewportLoading.loadViewport(this.params);
+            } break;
+            
         }
         isDone = true;
     }

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

@@ -71,9 +71,13 @@ public class LoadingUtils {
         }
     }
 
-    static void initAuthenticationManager(){
+    /**
+     * Initializes the authentication manager
+     * @param mock true if it should make a mock authentication manager, false for a real auth manager
+     */
+    static void initAuthenticationManager(boolean mock){
         if(Globals.RUN_SERVER){
-            Globals.authenticationManager = new AuthenticationManager();
+            Globals.authenticationManager = AuthenticationManager.create(mock);
         }
     }
     

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

@@ -25,7 +25,7 @@ public class ServerLoading {
 //                    Globals.dataCellManager = new DataCellManager(Globals.serverWorldData);
         LoggerInterface.loggerEngine.INFO("run server: " + Globals.RUN_SERVER + " run client: " + Globals.RUN_CLIENT);
         //init authentication
-        LoadingUtils.initAuthenticationManager();
+        LoadingUtils.initAuthenticationManager(false);
         //initialize the server thread (server only)
         LoadingUtils.initServerThread();
         //initialize the "virtual" objects simulation

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

@@ -0,0 +1,83 @@
+package electrosphere.engine.loadingthreads;
+
+import java.util.concurrent.TimeUnit;
+
+import org.joml.Vector3d;
+
+import electrosphere.auth.AuthenticationManager;
+import electrosphere.engine.Globals;
+import electrosphere.entity.types.creature.CreatureTemplate;
+import electrosphere.entity.types.creature.CreatureUtils;
+import electrosphere.logger.LoggerInterface;
+import electrosphere.menu.MenuGenerators;
+import electrosphere.menu.WindowStrings;
+import electrosphere.menu.WindowUtils;
+import electrosphere.net.parser.net.message.TerrainMessage;
+import electrosphere.net.server.player.Player;
+import electrosphere.renderer.ui.elements.Window;
+import electrosphere.server.db.DatabaseController;
+
+/**
+ * Loads the viewport
+ */
+public class ViewportLoading {
+    
+    /**
+     * Loads the viewport
+     */
+    protected static void loadViewport(Object[] params){
+        //
+        //show loading
+        Window loadingWindow = (Window)Globals.elementService.getWindow(WindowStrings.WINDOW_LOADING);
+        WindowUtils.recursiveSetVisible(Globals.elementService.getWindow(WindowStrings.WINDOW_MENU_MAIN), false);
+        WindowUtils.replaceMainMenuContents(MenuGenerators.createEmptyMainMenu());
+        loadingWindow.setVisible(true);
+
+        //
+        //init realm manager with viewport realm
+        Globals.realmManager.createViewportRealm(new Vector3d(0,0,0), new Vector3d(16,16,16));
+
+        //
+        //connect client to server
+        LoggerInterface.loggerEngine.INFO("run server: " + Globals.RUN_SERVER + " run client: " + Globals.RUN_CLIENT);
+        Globals.dbController = new DatabaseController();
+        LoadingUtils.initAuthenticationManager(true);
+        Globals.clientUsername = "leveleditor";
+        Globals.clientPassword = AuthenticationManager.getHashedString("leveleditor");
+        LoadingUtils.initLocalConnection(true);
+        //wait for player object creation
+        while(Globals.playerManager.getPlayers().size() < 1){
+            try {
+                TimeUnit.MILLISECONDS.sleep(10);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+        //add player to viewport realm
+        Player localPlayer = Globals.playerManager.getFirstPlayer();
+        Globals.realmManager.first().getDataCellManager().addPlayerToRealm(localPlayer);
+
+        //initialize the "real" objects simulation
+        LoadingUtils.initMicroSimulation();
+        LoadingUtils.setSimulationsToReady();
+        LoggerInterface.loggerEngine.INFO("[Server]Finished loading level editor");
+
+        //request terrain data
+        Globals.clientConnection.queueOutgoingMessage(TerrainMessage.constructRequestMetadataMessage());
+
+        //block for client world data
+        while(Globals.clientWorldData == null){
+            try {
+                TimeUnit.MILLISECONDS.sleep(10);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+
+        //Run client startup process
+        ClientLoading.loadViewport(params);
+
+        CreatureUtils.serverSpawnBasicCreature(Globals.realmManager.first(), new Vector3d(1,1,1), "human", CreatureTemplate.createDefault("human"));
+    }
+
+}

src/main/java/electrosphere/game/server/world/ServerWorldData.java

@@ -82,21 +82,28 @@ public class ServerWorldData {
         return rVal;
     }
 
-    // public static ServerWorldData createGameWorld(ServerTerrainManager terrainManager){
+    /**
-    //     ServerWorldData rVal = new ServerWorldData();
+     * Creates a server world data object with a fixed size
-    //     rVal.type = WorldType.GAME_WORLD;
+     * @param minPoint The minimum point of the world
+     * @param maxPoint The maximum point of the world
+     * @return The server world data object
+     */
+    public static ServerWorldData createFixedWorldData(Vector3d minPoint, Vector3d maxPoint){
+        ServerWorldData rVal = new ServerWorldData();
+        rVal.type = WorldType.LEVEL;
 
-    //     rVal.worldMinPoint = new Vector3f(0,0,0);
+        //min and max real points
-    //     int worldDim = terrainManager.getWorldDiscreteSize() * ServerTerrainChunk.CHUNK_DIMENSION;
+        rVal.worldMinPoint = new Vector3f((float)minPoint.x,(float)minPoint.y,(float)minPoint.z);
-    //     rVal.worldMaxPoint = new Vector3f(worldDim,0,worldDim);
+        rVal.worldMaxPoint = new Vector3f((float)maxPoint.x,(float)maxPoint.y,(float)maxPoint.z);
 
-    //     rVal.dynamicInterpolationRatio = terrainManager.getDynamicInterpolationRatio();
+        //misc values
-    //     rVal.worldSizeDiscrete = terrainManager.getWorldDiscreteSize();
+        rVal.dynamicInterpolationRatio = 1;
-    //     rVal.worldSizeDiscreteVertical = 128;
+        rVal.worldSizeDiscrete = 1;
-    //     rVal.randomDampener = terrainManager.getRandomDampener();
+        rVal.worldSizeDiscreteVertical = 1;
+        rVal.randomDampener = ServerTerrainManager.SERVER_TERRAIN_MANAGER_DAMPENER;
 
-    //     return rVal;
+        return rVal;
-    // }
+    }
 
     /**
      * Loads world data from a scene or a save

src/main/java/electrosphere/menu/mainmenu/MenuGeneratorsTitleMenu.java

@@ -106,6 +106,17 @@ public class MenuGeneratorsTitleMenu {
             return false;
         }});
 
+        //button (Viewport Test)
+        Button viewportTestingButton = new Button();
+        Label viewportTestingLabel = new Label(1.0f);
+        viewportTestingLabel.setText("Viewport Test");
+        viewportTestingButton.addChild(viewportTestingLabel);
+        rVal.addChild(viewportTestingButton);
+        viewportTestingButton.setOnClick(new ClickableElement.ClickEventCallback(){public boolean execute(ClickEvent event){
+            Globals.threadManager.start(new LoadingThread(LoadingThreadType.LOAD_VIEWPORT));
+            return false;
+        }});
+
         return rVal;
     }
 }

src/main/java/electrosphere/net/server/player/PlayerManager.java

@@ -49,6 +49,9 @@ public class PlayerManager {
      * @return The realm if it exists, null otherwise
      */
     public Realm getPlayerRealm(Player player){
+        if(Globals.realmManager.getRealms().size() == 1){
+            return Globals.realmManager.first();
+        }
         Entity playerEntity = player.getPlayerEntity();
         if(playerEntity == null){
             throw new IllegalStateException("Trying to get realm of player who does not have an entity assigned!");

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

@@ -5,6 +5,8 @@ import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.CopyOnWriteArraySet;
 
+import org.joml.Vector3d;
+
 import electrosphere.collision.CollisionEngine;
 import electrosphere.collision.CollisionWorldData;
 import electrosphere.collision.hitbox.HitboxManager;
@@ -63,6 +65,31 @@ public class RealmManager {
         return realm;
     }
 
+    /**
+     * Creates a viewport realm
+     * @return The viewport realm
+     */
+    public Realm createViewportRealm(Vector3d minPoint, Vector3d maxPoint){
+        //create the server world data
+        ServerWorldData serverWorldData = ServerWorldData.createFixedWorldData(minPoint, maxPoint);
+
+        //create collision engine
+        CollisionEngine collisionEngine = new CollisionEngine();
+        collisionEngine.setCollisionWorldData(new CollisionWorldData(serverWorldData));
+
+        //create realm
+        Realm realm = new Realm(serverWorldData, collisionEngine, new HitboxManager(new ServerHitboxResolutionCallback()), ServerContentManager.createServerContentManager(false));
+
+        //add function classes to realm
+        realm.setDataCellManager(ViewportDataCellManager.create(realm));
+        realm.setEntityDataCellMapper(new EntityDataCellMapper());
+
+        //register
+        realms.add(realm);
+
+        return realm;
+    }
+
     /**
      * Maps an entity to a realm
      * @param entity The entity

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

@@ -0,0 +1,123 @@
+package electrosphere.server.datacell;
+
+import java.util.LinkedList;
+import java.util.List;
+
+import org.joml.Vector3d;
+import org.joml.Vector3i;
+
+import electrosphere.engine.Globals;
+import electrosphere.entity.Scene;
+import electrosphere.net.server.player.Player;
+import electrosphere.server.datacell.interfaces.DataCellManager;
+
+public class ViewportDataCellManager implements DataCellManager {
+
+    /**
+     * The players in the realm
+     */
+    List<Player> players;
+
+    /**
+     * The data cell for the realm
+     */
+    ServerDataCell serverDataCell;
+
+    /**
+     * The parent realm
+     */
+    Realm parent;
+
+    /**
+     * Creates a viewport data cell manager
+     * @param realm The realm that will be parent to this manager
+     * @return The viewport data cell manager
+     */
+    public static ViewportDataCellManager create(Realm realm){
+        ViewportDataCellManager rVal = new ViewportDataCellManager();
+        rVal.players = new LinkedList<Player>();
+        rVal.serverDataCell = new ServerDataCell(new Scene());
+        rVal.parent = realm;
+        return rVal;
+    }
+
+    @Override
+    public void addPlayerToRealm(Player player) {
+        players.add(player);
+        this.serverDataCell.addPlayer(player);
+    }
+
+    @Override
+    public void movePlayer(Player player, Vector3i newPosition) {
+        //do nothing, only one data cell in the viewport manager
+    }
+
+    @Override
+    public boolean updatePlayerPositions() {
+        //never moves to another cell
+        return false;
+    }
+
+    @Override
+    public ServerDataCell getDataCellAtPoint(Vector3d point) {
+        return serverDataCell;
+    }
+
+    @Override
+    public Vector3i getCellWorldPosition(ServerDataCell cell) {
+        return new Vector3i(0,0,0);
+    }
+
+    @Override
+    public ServerDataCell tryCreateCellAtPoint(Vector3d point) {
+        return serverDataCell;
+    }
+
+    @Override
+    public ServerDataCell getCellAtWorldPosition(Vector3i position) {
+        return serverDataCell;
+    }
+
+    @Override
+    public void simulate() {
+        if(Globals.microSimulation != null && Globals.microSimulation.isReady()){
+            Globals.microSimulation.simulate(this.serverDataCell);
+        }
+        updatePlayerPositions();
+    }
+
+    @Override
+    public void unloadPlayerlessChunks() {
+        //does nothing
+    }
+
+    @Override
+    public void save(String saveName) {
+        //does nothing
+    }
+
+    @Override
+    public Vector3d guaranteePositionIsInBounds(Vector3d positionToTest) {
+        Vector3d returnPos = new Vector3d(positionToTest);
+        if(positionToTest.x < parent.getServerWorldData().getWorldBoundMin().x){
+            returnPos.x = parent.getServerWorldData().getWorldBoundMin().x + 1;
+        }
+        if(positionToTest.x >= parent.getServerWorldData().getWorldBoundMax().x){
+            returnPos.x = parent.getServerWorldData().getWorldBoundMax().x - 1;
+        }
+        if(positionToTest.y < parent.getServerWorldData().getWorldBoundMin().y){
+            returnPos.y = parent.getServerWorldData().getWorldBoundMin().y + 1;
+        }
+        if(positionToTest.y >= parent.getServerWorldData().getWorldBoundMax().y){
+            returnPos.y = parent.getServerWorldData().getWorldBoundMax().y - 1;
+        }
+        if(positionToTest.z < parent.getServerWorldData().getWorldBoundMin().z){
+            returnPos.z = parent.getServerWorldData().getWorldBoundMin().z + 1;
+        }
+        if(positionToTest.z >= parent.getServerWorldData().getWorldBoundMax().z){
+            returnPos.z = parent.getServerWorldData().getWorldBoundMax().z - 1;
+        }
+        return returnPos;
+    }
+    
+}

src/test/java/electrosphere/engine/loadingthreads/ViewportLoadingTests.java

@@ -0,0 +1,25 @@
+package electrosphere.engine.loadingthreads;
+
+import annotations.IntegrationTest;
+import electrosphere.engine.Main;
+import testutils.EngineInit;
+import testutils.TestEngineUtils;
+
+/**
+ * Tests loading viewport
+ */
+public class ViewportLoadingTests {
+    
+    @IntegrationTest
+    public void testViewportLoading(){
+        //init engine
+        TestEngineUtils.initGraphicalEngine();
+        
+        //load scene
+        EngineInit.setupConnectedTestScene();
+
+        //shutdown engine
+        Main.shutdown();
+    }
+
+}

src/test/java/testutils/EngineInit.java

@@ -17,7 +17,7 @@ public class EngineInit {
     public static void setupConnectedTestScene(){
         //
         //load the scene
-        LoadingThread loadingThread = new LoadingThread(LoadingThreadType.LEVEL,"testscene1");
+        LoadingThread loadingThread = new LoadingThread(LoadingThreadType.LOAD_VIEWPORT);
         Globals.threadManager.start(loadingThread);
 
         //