stratified updates to client cell manager

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

@@ -50,6 +50,26 @@ public class ClientDrawCellManager {
      */
     public static final double EIGHTH_RES_DIST = 28 * ServerTerrainChunk.CHUNK_DIMENSION;
 
+    /**
+     * Lod value for a full res chunk
+     */
+    public static final int FULL_RES_LOD = 0;
+
+    /**
+     * Lod value for a half res chunk
+     */
+    public static final int HALF_RES_LOD = 1;
+
+    /**
+     * Lod value for a quarter res chunk
+     */
+    public static final int QUARTER_RES_LOD = 2;
+
+    /**
+     * Lod value for a eighth res chunk
+     */
+    public static final int EIGHTH_RES_LOD = 3;
+
     /**
      * The octree holding all the chunks to evaluate
      */
@@ -95,6 +115,11 @@ public class ClientDrawCellManager {
      */
     int generated = 0;
 
+    /**
+     * Tracks whether the cell manager has initialized or not
+     */
+    boolean initialized = false;
+
     /**
      * Constructor
      * @param voxelTextureAtlas The voxel texture atlas
@@ -115,12 +140,18 @@ public class ClientDrawCellManager {
             Vector3d playerPos = EntityUtils.getPosition(Globals.playerEntity);
             //the sets to iterate through
             updatedLastFrame = true;
-            int attempts = 0;
             validCellCount = 0;
-            while(updatedLastFrame && attempts < UPDATE_ATTEMPTS_PER_FRAME){
-                FloatingChunkTreeNode<DrawCell> rootNode = this.chunkTree.getRoot();
-                updatedLastFrame = this.recursivelyUpdateCells(rootNode, playerPos);
-                attempts++;
+            //update all full res cells
+            FloatingChunkTreeNode<DrawCell> rootNode = this.chunkTree.getRoot();
+            updatedLastFrame = this.recursivelyUpdateCells(rootNode, playerPos, HALF_RES_LOD);
+            if(!updatedLastFrame && !this.initialized){
+                this.initialized = true;
+            }
+            if(!updatedLastFrame){
+                updatedLastFrame = this.recursivelyUpdateCells(rootNode, playerPos, QUARTER_RES_LOD);
+            }
+            if(!updatedLastFrame){
+                updatedLastFrame = this.recursivelyUpdateCells(rootNode, playerPos, EIGHTH_RES_LOD);
             }
         }
         Globals.profiler.endCpuSample();
@@ -130,9 +161,10 @@ public class ClientDrawCellManager {
      * Recursively update child nodes
      * @param node The root node
      * @param playerPos The player's position
+     * @param minLeafLod The minimum LOD required to evaluate a leaf
      * @return true if there is work remaining to be done, false otherwise
      */
-    private boolean recursivelyUpdateCells(FloatingChunkTreeNode<DrawCell> node, Vector3d playerPos){
+    private boolean recursivelyUpdateCells(FloatingChunkTreeNode<DrawCell> node, Vector3d playerPos, int minLeafLod){
         Vector3d playerRealPos = EntityUtils.getPosition(Globals.playerEntity);
         boolean updated = false;
         if(this.shouldSplit(playerPos, node)){
@@ -176,15 +208,20 @@ public class ClientDrawCellManager {
 
             Globals.profiler.endCpuSample();
             updated = true;
-        } else if(shouldRequest(playerPos, node)){
+        } else if(shouldRequest(playerPos, node, minLeafLod)){
             Globals.profiler.beginCpuSample("ClientDrawCellManager.request");
+
+            //calculate what to request
             DrawCell cell = node.getData();
             List<DrawCellFace> highResFaces = this.solveHighResFace(node);
+
+            //actually send requests
             this.requestChunks(node, highResFaces);
             cell.setHasRequested(true);
+
             Globals.profiler.endCpuSample();
             updated = true;
-        } else if(shouldGenerate(playerPos, node)){
+        } else if(shouldGenerate(playerPos, node, minLeafLod)){
             Globals.profiler.beginCpuSample("ClientDrawCellManager.generate");
             int lodLevel = this.getLODLevel(playerRealPos, node);
             List<DrawCellFace> highResFaces = this.solveHighResFace(node);
@@ -205,7 +242,7 @@ public class ClientDrawCellManager {
             this.validCellCount++;
             List<FloatingChunkTreeNode<DrawCell>> children = new LinkedList<FloatingChunkTreeNode<DrawCell>>(node.getChildren());
             for(FloatingChunkTreeNode<DrawCell> child : children){
-                boolean childUpdate = recursivelyUpdateCells(child, playerPos);
+                boolean childUpdate = recursivelyUpdateCells(child, playerPos, minLeafLod);
                 if(childUpdate == true){
                     updated = true;
                 }
@@ -414,13 +451,15 @@ public class ClientDrawCellManager {
      * Checks if this cell should request chunk data
      * @param pos the player's position
      * @param node the node
+     * @param minLeafLod The minimum LOD required to evaluate a leaf
      * @return true if should request chunk data, false otherwise
      */
-    public boolean shouldRequest(Vector3d pos, FloatingChunkTreeNode<DrawCell> node){
+    public boolean shouldRequest(Vector3d pos, FloatingChunkTreeNode<DrawCell> node, int minLeafLod){
         return 
         node.isLeaf() &&
         node.getData() != null &&
         !node.getData().hasRequested() &&
+        (this.chunkTree.getMaxLevel() - node.getLevel()) < minLeafLod &&
         (
             (
                 node.getLevel() == this.chunkTree.getMaxLevel()
@@ -453,13 +492,15 @@ public class ClientDrawCellManager {
      * Checks if this cell should generate
      * @param pos the player's position
      * @param node the node
+     * @param minLeafLod The minimum LOD required to evaluate a leaf
      * @return true if should generate, false otherwise
      */
-    public boolean shouldGenerate(Vector3d pos, FloatingChunkTreeNode<DrawCell> node){
+    public boolean shouldGenerate(Vector3d pos, FloatingChunkTreeNode<DrawCell> node, int minLeafLod){
         return 
         node.isLeaf() &&
         node.getData() != null &&
         !node.getData().hasGenerated() &&
+        (this.chunkTree.getMaxLevel() - node.getLevel()) < minLeafLod &&
         (
             (
                 node.getLevel() == this.chunkTree.getMaxLevel()
@@ -788,6 +829,14 @@ public class ClientDrawCellManager {
         return generated;
     }
 
+    /**
+     * Gets whether the client draw cell manager has initialized or not
+     * @return true if it has initialized, false otherwise
+     */
+    public boolean isInitialized(){
+        return this.initialized;
+    }
+
     
     
 }

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

@@ -297,7 +297,11 @@ public class ClientLoading {
         Globals.clientSimulation.setLoadingTerrain(true);
         //wait for all the terrain data to arrive
         int i = 0;
-        while(blockForInit && Globals.clientDrawCellManager.updatedLastFrame() && Globals.threadManager.shouldKeepRunning()){
+        while(
+            blockForInit &&
+            !Globals.clientDrawCellManager.isInitialized() &&
+            Globals.threadManager.shouldKeepRunning()
+        ){
             i++;
             if(i % DRAW_CELL_UPDATE_RATE == 0){
                 WindowUtils.updateLoadingWindow("WAITING ON SERVER TO SEND TERRAIN (" + Globals.clientTerrainManager.getAllChunks().size() + ")");

src/main/java/electrosphere/server/terrain/generation/TestGenerationChunkGenerator.java

@@ -24,7 +24,7 @@ public class TestGenerationChunkGenerator implements ChunkGenerator {
     /**
      * The size of the realm for testing generation
      */
-    public static final int GENERATOR_REALM_SIZE = 32;
+    public static final int GENERATOR_REALM_SIZE = 64;
 
     /**
      * The default biome index