small improvements

docs/src/progress/renderertodo.md

@@ -1992,6 +1992,8 @@ Performance improvements
  - Undo most object pooling
  - ServerBlockChunkDiskMap uses short pool
  - Client leverages block chunk short pool
+ - Client doesn't load physics on entities by default
+ - Block chunk disk map writes files without allocating a buffer
 Increase human move speed
 LOD components re-attach physics
 VectorPool->JomlPool

src/main/java/electrosphere/collision/CollisionEngine.java

@@ -188,6 +188,12 @@ public class CollisionEngine {
      */
     private int geomCount = 0;
 
+
+    /**
+     * buffer for storing potential collisions
+     */
+    private DContactBuffer contacts = new DContactBuffer(MAX_CONTACTS);
+    
     /**
      * Constructor
      */
@@ -432,8 +438,8 @@ public class CollisionEngine {
 
         Globals.profiler.beginAggregateCpuSample("CollisionEngine.nearCallback - Full collision phase");
         try {
-            //creates a buffer to store potential collisions
-            DContactBuffer contacts = new DContactBuffer(MAX_CONTACTS);   // up to MAX_CONTACTS contacts per box-box
+            //null out the contact buffer
+            contacts.nullify();
             SurfaceParams surfaceParams = c1.getSurfaceParams();
             for (int i=0; i<MAX_CONTACTS; i++) {
                 DContact contact = contacts.get(i);

src/main/java/electrosphere/collision/PhysicsEntityUtils.java

@@ -52,6 +52,11 @@ public class PhysicsEntityUtils {
      */
     static final double WORLD_MARGIN = 0.001;
 
+    /**
+     * Distance after which client does not generate collidables by default
+     */
+    public static final double CLIENT_LOD_DIST = 50;
+
     /**
      * [CLIENT ONLY] Attaches a collidable template to a given entity
      * @param rVal The entity

src/main/java/electrosphere/entity/state/lod/ClientLODComponent.java

@@ -3,9 +3,11 @@ package electrosphere.entity.state.lod;
 
 import electrosphere.collision.PhysicsEntityUtils;
 import electrosphere.collision.PhysicsUtils;
+import electrosphere.data.entity.collidable.CollidableTemplate;
 import electrosphere.data.entity.common.CommonEntityType;
 import electrosphere.engine.Globals;
 import electrosphere.entity.EntityDataStrings;
+import electrosphere.entity.EntityUtils;
 import electrosphere.entity.Entity;
 import electrosphere.net.synchronization.enums.BehaviorTreeIdEnums;
 import electrosphere.entity.btree.BehaviorTree;
@@ -37,6 +39,18 @@ public class ClientLODComponent implements BehaviorTree {
 
     @Override
     public void simulate(float deltaTime) {
+        if(this.lodLevel == ServerLODComponent.FULL_RES){
+            CommonEntityType commonData = CommonEntityUtils.getCommonData(this.parent);
+            if(
+                commonData.getCollidable() != null && 
+                PhysicsEntityUtils.getCollidable(this.parent) == null && 
+                Globals.clientState.playerEntity != null && 
+                EntityUtils.getPosition(Globals.clientState.playerEntity).distance(EntityUtils.getPosition(this.parent)) < ServerLODComponent.LOD_RADIUS
+            ){
+                CollidableTemplate physicsTemplate = commonData.getCollidable();
+                PhysicsEntityUtils.clientAttachCollidableTemplate(this.parent, physicsTemplate);
+            }
+        }
         if(cachedLodLevel != lodLevel){
             cachedLodLevel = lodLevel;
             if(cachedLodLevel == ServerLODComponent.FULL_RES){

src/main/java/electrosphere/entity/types/common/CommonEntityUtils.java

@@ -188,8 +188,6 @@ public class CommonEntityUtils {
         //
         //
         if(rawType.getCollidable() != null){
-            CollidableTemplate physicsTemplate = rawType.getCollidable();
-            PhysicsEntityUtils.clientAttachCollidableTemplate(entity, physicsTemplate);
             ClientLODComponent.attachTree(entity);
         }
         

src/main/java/electrosphere/server/physics/block/diskmap/ServerBlockChunkDiskMap.java

@@ -1,6 +1,7 @@
 package electrosphere.server.physics.block.diskmap;
 
 import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.nio.ShortBuffer;
@@ -214,43 +215,38 @@ public class ServerBlockChunkDiskMap {
         } else {
             fileName = BLOCK_DATA_DIR + chunkKey + "b.dat";
         }
+        //compress
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        DeflaterOutputStream deflaterOutStream = new DeflaterOutputStream(out);
+        DataOutputStream dataOut = new DataOutputStream(deflaterOutStream);
+        try {
+
+
             //generate binary for the file
             short[] type = chunkData.getType();
             short[] metadata = chunkData.getMetadata();
 
-        //allocate buffer
-        ByteBuffer buffer = null;
-        if(chunkData.getHomogenousValue() == BlockChunkData.NOT_HOMOGENOUS){
-            buffer = ByteBuffer.allocate(ServerBlockChunkDiskMap.FILE_HEADER + BlockChunkData.TOTAL_DATA_WIDTH * 2 * 2);
-        } else {
-            buffer = ByteBuffer.allocate(ServerBlockChunkDiskMap.FILE_HEADER + 2);
-        }
-
             //push data
             if(chunkData.getHomogenousValue() == BlockChunkData.NOT_HOMOGENOUS){
                 //put header
-            buffer.putInt(HEADER_NON_HOMOGENOUS);
+                dataOut.writeInt(HEADER_NON_HOMOGENOUS);
                 //put data
-            ShortBuffer shortView = buffer.asShortBuffer();
                 for(int i = 0; i < BlockChunkData.TOTAL_DATA_WIDTH; i++){
-                shortView.put(type[i]);
+                    dataOut.writeShort(type[i]);
                 }
                 for(int i = 0; i < BlockChunkData.TOTAL_DATA_WIDTH; i++){
-                shortView.put(metadata[i]);
+                    dataOut.writeShort(metadata[i]);
                 }
             } else {
                 //put header
-            buffer.putInt(HEADER_HOMOGENOUS);
+                dataOut.writeInt(HEADER_HOMOGENOUS);
                 //put data
-            buffer.putShort(chunkData.getHomogenousValue());
+                dataOut.writeShort(chunkData.getHomogenousValue());
             }
-        //compress
-        ByteArrayOutputStream out = new ByteArrayOutputStream();
-        DeflaterOutputStream deflaterInputStream = new DeflaterOutputStream(out);
-        try {
-            deflaterInputStream.write(buffer.array());
-            deflaterInputStream.flush();
-            deflaterInputStream.close();
+
+
+            dataOut.flush();
+            dataOut.close();
             //write to disk
             FileUtils.saveBinaryToSavePath(Globals.serverState.currentSave.getName(), fileName, out.toByteArray());
             //save to the map of filenames