async load texture atlas

docs/src/progress/renderertodo.md

@@ -259,6 +259,12 @@ Ground Texture Atlas system
  - Basic atlas working with marching cubes
  - Make it work with triplanar mapping
 
+(05/05/2024)
+Synchronize attack tree over network
+
+Clean up data
+ - Tree Model Paths
+
 
 # TODO
 

src/main/java/electrosphere/client/terrain/cells/VoxelTextureAtlas.java

@@ -3,20 +3,7 @@ package electrosphere.client.terrain.cells;
 import java.util.HashMap;
 import java.util.Map;
 
-import javax.imageio.ImageIO;
-
-import java.awt.Graphics;
-import java.awt.image.BufferedImage;
-import java.io.IOException;
-
-import org.joml.Vector2i;
-
-import electrosphere.engine.Globals;
-import electrosphere.game.data.voxel.VoxelData;
-import electrosphere.game.data.voxel.VoxelType;
-import electrosphere.logger.LoggerInterface;
 import electrosphere.renderer.texture.Texture;
-import electrosphere.util.FileUtils;
 
 /**
  * An atlas texture and accompanying map of all voxel textures
@@ -39,39 +26,30 @@ public class VoxelTextureAtlas {
     public static final int ATLAS_DIM = 8192;
     //number of textures per row in the atlas
     public static final int ELEMENTS_PER_ROW = ATLAS_DIM / ATLAS_ELEMENT_DIM;
-    
-    /**
-     * Creates the voxel texture atlas object
-     * @return the atlas object
-     */
-    public static VoxelTextureAtlas createVoxelTextureAtlas(VoxelData data){
-        Globals.profiler.beginCpuSample("createVoxelTextureAtlas");
-        VoxelTextureAtlas rVal = new VoxelTextureAtlas();
-        int iterator = 0;
-        BufferedImage image = new BufferedImage(ATLAS_DIM, ATLAS_DIM, BufferedImage.TYPE_4BYTE_ABGR);
-        Graphics graphics = image.getGraphics();
-        for(VoxelType type : data.getTypes()){
-            if(type.getTexture() != null){
-                int offX = iterator % ELEMENTS_PER_ROW;
-                int offY = iterator / ELEMENTS_PER_ROW;
-                try {
-                    BufferedImage newType = ImageIO.read(FileUtils.getAssetFile(type.getTexture()));
-                    graphics.drawImage(newType, iterator * ATLAS_ELEMENT_DIM * offX, ATLAS_DIM - ATLAS_ELEMENT_DIM - iterator * ATLAS_ELEMENT_DIM * offY, null);
-                } catch (IOException e) {
-                    LoggerInterface.loggerRenderer.ERROR("Texture atlas failed to find texture " + type.getTexture(), e);
-                }
-                //put coords in map
-                rVal.typeCoordMap.put(type.getId(),iterator);
 
-                //iterate
+    /**
-                iterator++;
+     * Puts an entry in the type-coord map to map a voxel type to a position
-            }
+     * @param type the voxel type
-        }
+     * @param coord the coordinate in the map
-        Globals.profiler.endCpuSample();
+     */
-        //construct texture atlas from buffered image
+    public void putTypeCoord(int type, int coord){
-        rVal.specular = new Texture(image);
+        typeCoordMap.put(type,coord);
-        rVal.normal = new Texture(image);
+    }
-        return rVal;
+
+    /**
+     * Sets the specular
+     * @param specular the specular
+     */
+    public void setSpecular(Texture specular){
+        this.specular = specular;
+    }
+
+    /**
+     * Sets the normal
+     * @param normal the normal
+     */
+    public void setNormal(Texture normal){
+        this.normal = normal;
     }
 
     /**

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

@@ -31,6 +31,7 @@ import electrosphere.controls.MouseCallback;
 import electrosphere.controls.ScrollCallback;
 import electrosphere.engine.assetmanager.AssetDataStrings;
 import electrosphere.engine.assetmanager.AssetManager;
+import electrosphere.engine.loadingthreads.InitialAssetLoading;
 import electrosphere.engine.loadingthreads.LoadingThread;
 import electrosphere.engine.profiler.Profiler;
 import electrosphere.engine.time.Timekeeper;
@@ -58,7 +59,6 @@ import electrosphere.renderer.light.PointLight;
 import electrosphere.renderer.light.SpotLight;
 import electrosphere.renderer.loading.ModelPretransforms;
 import electrosphere.renderer.meshgen.FluidChunkModelGeneration;
-import electrosphere.renderer.meshgen.TerrainChunkModelGeneration;
 import electrosphere.renderer.model.Material;
 import electrosphere.renderer.shader.ShaderOptionMap;
 import electrosphere.renderer.shader.ShaderProgram;
@@ -333,7 +333,7 @@ public class Globals {
     //chunk stuff
     //draw cell manager
     public static DrawCellManager drawCellManager;
-    public static VoxelTextureAtlas voxelTextureAtlas;
+    public static VoxelTextureAtlas voxelTextureAtlas = new VoxelTextureAtlas();
 
     //fluid cell manager
     public static FluidCellManager fluidCellManager;
@@ -348,6 +348,7 @@ public class Globals {
     
     //thread for loading different game states
     public static List<LoadingThread> loadingThreadsList = new LinkedList<LoadingThread>();
+    public static InitialAssetLoading initialAssetLoadingThread = new InitialAssetLoading();
 
     //manager for all widgets currently being drawn to screen
     public static ElementManager elementManager;
@@ -551,9 +552,6 @@ public class Globals {
         assetManager.addShaderToQueue("Shaders/ui/debug/windowBorder/windowBound.vs", null, "Shaders/ui/debug/windowBorder/windowBound.fs");
         assetManager.addShaderToQueue("Shaders/ui/debug/windowContentBorder/windowContentBound.vs", null, "Shaders/ui/debug/windowContentBorder/windowContentBound.fs");
 
-        //voxel texture atlas
-        voxelTextureAtlas = VoxelTextureAtlas.createVoxelTextureAtlas(Globals.gameConfigCurrent.getVoxelData());
-        
         //as these assets are required for the renderer to work, we go ahead and
         //load them into memory now. The loading time penalty is worth it I think.
         Globals.assetManager.loadAssetsInQueue();

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

@@ -134,10 +134,14 @@ public class Main {
         
         //create the drawing context
         if(Globals.RUN_CLIENT && !Globals.HEADLESS){
+            //create opengl context
             Globals.renderingEngine = new RenderingEngine();
             Globals.renderingEngine.createOpenglContext();
             Globals.initDefaultGraphicalResources();
             ImGuiWindowMacros.initImGuiWindows();
+
+            //start initial asset loading
+            new Thread(Globals.initialAssetLoadingThread).start();
         }
 
         Runtime.getRuntime().addShutdownHook(new Thread(() -> {

src/main/java/electrosphere/engine/assetmanager/AssetManager.java

@@ -3,8 +3,8 @@ package electrosphere.engine.assetmanager;
 import electrosphere.audio.AudioBuffer;
 import electrosphere.collision.CollisionBodyCreation;
 import electrosphere.collision.CollisionEngine;
-import electrosphere.collision.PhysicsUtils;
 import electrosphere.collision.collidable.Collidable;
+import electrosphere.engine.assetmanager.queue.QueuedAsset;
 import electrosphere.logger.LoggerInterface;
 import electrosphere.renderer.actor.ActorShaderMask;
 import electrosphere.renderer.buffer.HomogenousInstancedArray;
@@ -22,10 +22,10 @@ import java.util.Map;
 import java.util.UUID;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.Semaphore;
 
 import org.lwjgl.assimp.AIScene;
 import org.ode4j.ode.DBody;
-import org.ode4j.ode.DWorld;
 
 /**
  * Manages all assets loaded into the engine including initially loading and destructing
@@ -56,6 +56,11 @@ public class AssetManager {
 
     //A queue of homogenous buffers to allocate this render frame
     List<HomogenousInstancedArray> instanceArrayBufferAllocationQueue = new CopyOnWriteArrayList<HomogenousInstancedArray>();
+
+
+    //assets queued to be loaded
+    Semaphore queuedAssetLock = new Semaphore(1);
+    List<QueuedAsset> queuedAssets = new CopyOnWriteArrayList<QueuedAsset>();
     
     
     
@@ -116,6 +121,13 @@ public class AssetManager {
             AIScene scene = ModelLoader.loadAIScene(currentPath);
             poseModelsLoadedIntoMemory.put(currentPath, new PoseModel(currentPath, scene));
         }
+        //queued assets
+        queuedAssetLock.acquireUninterruptibly();
+        for(QueuedAsset queuedAsset : queuedAssets){
+            queuedAsset.load();
+        }
+        queuedAssets.clear();
+        queuedAssetLock.release();
         //allocate homogenous buffers
         allocateHomogenousBuffers();
         //allocate instance array buffers
@@ -428,6 +440,20 @@ public class AssetManager {
     public void addInstanceArrayBufferToQueue(HomogenousInstancedArray buffer){
         instanceArrayBufferAllocationQueue.add(buffer);
     }
+
+
+    //
+    //Async generic queued assets
+    //
+    /**
+     * Queues an asset to be loaded on the main thread
+     * @param asset the asset
+     */
+    public void queuedAsset(QueuedAsset asset){
+        queuedAssetLock.acquireUninterruptibly();
+        this.queuedAssets.add(asset);
+        queuedAssetLock.release();
+    }
     
     
     

src/main/java/electrosphere/engine/assetmanager/queue/QueuedAsset.java

@@ -0,0 +1,19 @@
+package electrosphere.engine.assetmanager.queue;
+
+/**
+ * An asset that has its data ready to be buffered to gpu
+ */
+public interface QueuedAsset {
+    
+    /**
+     * Loads the asset
+     */
+    public void load();
+
+    /**
+     * Checks whether the queued asset has been loaded or not
+     * @return True if it has been loaded to gpu/wherever, false otherise
+     */
+    public boolean hasLoaded();
+
+}

src/main/java/electrosphere/engine/assetmanager/queue/QueuedTexture.java

@@ -0,0 +1,51 @@
+package electrosphere.engine.assetmanager.queue;
+
+import java.awt.image.BufferedImage;
+
+import electrosphere.renderer.texture.Texture;
+
+/**
+ * A texture queued to be sent to the gpu
+ */
+public class QueuedTexture implements QueuedAsset {
+
+    //true if loaded
+    boolean hasLoaded = false;
+
+    //the resulting texture object
+    Texture texture = null;
+
+    //data to be loaded
+    BufferedImage data;
+
+
+    /**
+     * Creates the queued texture object
+     * @param image the image to load to gpu
+     */
+    public QueuedTexture(BufferedImage image){
+        this.data = image;
+    }
+
+    @Override
+    public void load() {
+        texture = new Texture(data);
+        hasLoaded = true;
+    }
+
+    @Override
+    public boolean hasLoaded() {
+        return hasLoaded;
+    }
+
+    /**
+     * Gets the texture object
+     * @return The texture if it has been loaded, otherwise null
+     */
+    public Texture getTexture(){
+        return texture;
+    }
+    
+    
+
+}

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

@@ -232,7 +232,7 @@ public class ClientLoading {
     }
 
     static void initDrawCellManager(){
-        while(Globals.clientWorldData == null){
+        while(Globals.clientWorldData == null || Globals.initialAssetLoadingThread.isLoading()){
             try {
                 TimeUnit.MILLISECONDS.sleep(10);
             } catch (InterruptedException ex) {

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

@@ -0,0 +1,104 @@
+package electrosphere.engine.loadingthreads;
+
+import java.awt.Graphics;
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+
+import javax.imageio.ImageIO;
+
+import electrosphere.client.terrain.cells.VoxelTextureAtlas;
+import electrosphere.engine.Globals;
+import electrosphere.engine.assetmanager.queue.QueuedTexture;
+import electrosphere.game.data.voxel.VoxelData;
+import electrosphere.game.data.voxel.VoxelType;
+import electrosphere.logger.LoggerInterface;
+import electrosphere.util.FileUtils;
+
+/**
+ * The intention of this thread is to load basic assets that the engine should generally have available from the start.
+ * Examples:
+ *  - Texture Atlas for terrain
+ *  - Icons for items
+ */
+public class InitialAssetLoading implements Runnable {
+    
+    //tracks whether this thread is still doing work or not
+    boolean loading = true;
+
+    /**
+     * Loads basic data
+     */
+    public void LoadData(){
+
+    
+        loadTextureAtlas();
+        LoggerInterface.loggerEngine.INFO("Finished loading texture atlas");
+        
+        loading = false;
+    }
+
+    /**
+ * Gets whether the thread is still loading or not
+     * @return true if loading, false otherwise
+     */
+    public boolean isLoading(){
+        return loading;
+    }
+
+    /**
+     * Loads the texture atlas
+     */
+    private void loadTextureAtlas(){
+        //terrain texture atlas
+        Globals.profiler.beginCpuSample("createVoxelTextureAtlas");
+        VoxelData data = Globals.gameConfigCurrent.getVoxelData();
+        int iterator = 0;
+        BufferedImage image = new BufferedImage(VoxelTextureAtlas.ATLAS_DIM, VoxelTextureAtlas.ATLAS_DIM, BufferedImage.TYPE_4BYTE_ABGR);
+        Graphics graphics = image.getGraphics();
+        for(VoxelType type : data.getTypes()){
+            if(type.getTexture() != null){
+                int offX = iterator % VoxelTextureAtlas.ELEMENTS_PER_ROW;
+                int offY = iterator / VoxelTextureAtlas.ELEMENTS_PER_ROW;
+                try {
+                    BufferedImage newType = ImageIO.read(FileUtils.getAssetFile(type.getTexture()));
+                    graphics.drawImage(newType, iterator * VoxelTextureAtlas.ATLAS_ELEMENT_DIM * offX, VoxelTextureAtlas.ATLAS_DIM - VoxelTextureAtlas.ATLAS_ELEMENT_DIM - iterator * VoxelTextureAtlas.ATLAS_ELEMENT_DIM * offY, null);
+                } catch (IOException e) {
+                    LoggerInterface.loggerRenderer.ERROR("Texture atlas failed to find texture " + type.getTexture(), e);
+                }
+                //put coords in map
+                Globals.voxelTextureAtlas.putTypeCoord(type.getId(),iterator);
+
+                //iterate
+                iterator++;
+            }
+        }
+        Globals.profiler.endCpuSample();
+        
+        //queue to asset manager
+        QueuedTexture atlasQueuedTexture = new QueuedTexture(image);
+        Globals.assetManager.queuedAsset(atlasQueuedTexture);
+
+
+        //wait the texture to be loaded
+        while(!atlasQueuedTexture.hasLoaded()){
+            try {
+                TimeUnit.MILLISECONDS.sleep(1);
+            } catch (InterruptedException e) {
+                LoggerInterface.loggerEngine.ERROR("failed to sleep", e);
+            }
+        }
+
+        
+        //construct texture atlas from buffered image
+        Globals.voxelTextureAtlas.setSpecular(atlasQueuedTexture.getTexture());
+        Globals.voxelTextureAtlas.setNormal(atlasQueuedTexture.getTexture());
+    }
+
+    @Override
+    public void run(){
+        this.LoadData();
+    }
+    
+
+}

src/main/java/electrosphere/entity/ServerEntityUtils.java

@@ -91,4 +91,14 @@ public class ServerEntityUtils {
         EntityUtils.cleanUpEntity(entity);
     }
 
+    /**
+     * Guarantees that the returned position is in bounds of the server realm
+     * @param realm The realm to test
+     * @param position the position
+     * @return Either the position if it is in bounds, or the closest position that is in bounds
+     */
+    public static Vector3d guaranteePositionIsInBounds(Realm realm, Vector3d position){
+        return realm.getDataCellManager().guaranteePositionIsInBounds(position);
+    }
+
 }

src/main/java/electrosphere/entity/state/attack/ClientAttackTree.java

@@ -325,7 +325,7 @@ public class ClientAttackTree implements BehaviorTree {
                         }
                     }
                 }
-                if(frameCurrent > currentMove.getWindupFrames() + currentMove.getAttackFrames() + currentMove.getCooldownFrames()){
+                if(currentMove != null && frameCurrent > currentMove.getWindupFrames() + currentMove.getAttackFrames() + currentMove.getCooldownFrames()){
                     state = AttackTreeState.IDLE;
                     frameCurrent = 0;
                     if(parent.containsKey(EntityDataStrings.CLIENT_ROTATOR_TREE)){
@@ -374,6 +374,7 @@ public class ClientAttackTree implements BehaviorTree {
         } else if(state != AttackTreeState.IDLE){
             //checks if we have a next move and if we're in the specified range of frames when we're allowed to chain into it
             if(
+                currentMove != null &&
                 currentMove.getNextMoveId() != null && 
                 !currentMove.getNextMoveId().equals("") &&
                 frameCurrent >= currentMove.getMoveChainWindowStart() && frameCurrent <= currentMove.getMoveChainWindowEnd()

src/main/java/electrosphere/entity/types/item/ItemUtils.java

@@ -121,9 +121,18 @@ public class ItemUtils {
 
 
 
+    /**
+     * Spawns an item on the server
+     * @param realm the realm to spawn in
+     * @param position the position to spawn at
+     * @param name the name of the item to spawn
+     * @return The item entity
+     */
     public static Entity serverSpawnBasicItem(Realm realm, Vector3d position, String name){
         Item item = Globals.gameConfigCurrent.getItemMap().getItem(name);
-        Entity rVal = EntityCreationUtils.createServerEntity(realm, position);// EntityUtils.spawnDrawableEntity(item.getModelPath());
+        //must correct the position such that it spawns inside the realm
+        Vector3d correctedPosition = ServerEntityUtils.guaranteePositionIsInBounds(realm, position);
+        Entity rVal = EntityCreationUtils.createServerEntity(realm, correctedPosition);// EntityUtils.spawnDrawableEntity(item.getModelPath());
         EntityCreationUtils.makeEntityPoseable(rVal, item.getModelPath());
         if(item.getWeaponData() != null){
             rVal.putData(EntityDataStrings.ITEM_IS_WEAPON, true);
@@ -194,7 +203,7 @@ public class ItemUtils {
         //Burried underneath this is function call to initialize a server side entity.
         //The server initialization logic checks what type of entity this is, if this function is called prior to its type being stored
         //the server will not be able to synchronize it properly.
-        ServerEntityUtils.initiallyPositionEntity(realm,rVal,position);
+        ServerEntityUtils.initiallyPositionEntity(realm,rVal,correctedPosition);
 
         return rVal;
     }

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

@@ -524,4 +524,28 @@ public class GriddedDataCellManager implements DataCellManager, VoxelCellManager
         }
     }
 
+    @Override
+    public Vector3d guaranteePositionIsInBounds(Vector3d positionToTest) {
+        Vector3d returnPos = new Vector3d(positionToTest);
+        if(positionToTest.x < 0){
+            returnPos.x = 0;
+        }
+        if(positionToTest.x >= Globals.serverWorldData.convertChunkToRealSpace(Globals.serverWorldData.getWorldSizeDiscrete())){
+            returnPos.x = Globals.serverWorldData.convertChunkToRealSpace(Globals.serverWorldData.getWorldSizeDiscrete()) - 1;
+        }
+        if(positionToTest.y < 0){
+            returnPos.y = 0;
+        }
+        if(positionToTest.y >= Globals.serverWorldData.convertChunkToRealSpace(Globals.serverWorldData.getWorldSizeDiscrete())){
+            returnPos.y = Globals.serverWorldData.convertChunkToRealSpace(Globals.serverWorldData.getWorldSizeDiscrete()) - 1;
+        }
+        if(positionToTest.z < 0){
+            returnPos.z = 0;
+        }
+        if(positionToTest.z >= Globals.serverWorldData.convertChunkToRealSpace(Globals.serverWorldData.getWorldSizeDiscrete())){
+            returnPos.z = Globals.serverWorldData.convertChunkToRealSpace(Globals.serverWorldData.getWorldSizeDiscrete()) - 1;
+        }
+        return returnPos;
+    }
+
 }

src/main/java/electrosphere/server/datacell/interfaces/DataCellManager.java

@@ -76,5 +76,12 @@ public interface DataCellManager {
      * @param saveName The name of the save
      */
     public void save(String saveName);
+
+    /**
+     * Guarantees that the returned position is in bounds
+     * @param positionToTest the position
+     * @return Either the position if it is in bounds, or the closest position that is in bounds
+     */
+    public Vector3d guaranteePositionIsInBounds(Vector3d positionToTest);
     
 }