Update

build.gradle

@@ -38,4 +38,7 @@ dependencies {
 
     compile 'com.github.TheMode:CommandBuilder:611d16a487'
 
+    // https://mvnrepository.com/artifact/javax.vecmath/vecmath
+    compile group: 'javax.vecmath', name: 'vecmath', version: '1.5.2' // Used for Fastnoise
+
 }

src/main/java/fr/themode/demo/PlayerInit.java

@@ -1,6 +1,7 @@
 package fr.themode.demo;
 
 import fr.themode.demo.generator.ChunkGeneratorDemo;
+import fr.themode.demo.generator.NoiseTestGenerator;
 import fr.themode.minestom.MinecraftServer;
 import fr.themode.minestom.benchmark.BenchmarkManager;
 import fr.themode.minestom.entity.Entity;
@@ -27,18 +28,19 @@ public class PlayerInit {
 
     static {
         ChunkGeneratorDemo chunkGeneratorDemo = new ChunkGeneratorDemo();
+        NoiseTestGenerator noiseTestGenerator = new NoiseTestGenerator();
         //instanceContainer = MinecraftServer.getInstanceManager().createInstanceContainer(new File("chunk_data"));
         instanceContainer = MinecraftServer.getInstanceManager().createInstanceContainer();
         instanceContainer.enableAutoChunkLoad(true);
-        instanceContainer.setChunkGenerator(chunkGeneratorDemo);
+        instanceContainer.setChunkGenerator(noiseTestGenerator);
+
+        // Load some chunks beforehand
         int loopStart = -2;
         int loopEnd = 2;
-        long time = System.currentTimeMillis();
         for (int x = loopStart; x < loopEnd; x++)
             for (int z = loopStart; z < loopEnd; z++) {
                 instanceContainer.loadChunk(x, z);
             }
-        System.out.println("Time to load all chunks: " + (System.currentTimeMillis() - time) + " ms");
     }
 
     public static void init() {
@@ -127,8 +129,8 @@ public class PlayerInit {
             });
 
             player.setEventCallback(PlayerSpawnEvent.class, event -> {
-                player.setGameMode(GameMode.SURVIVAL);
-                player.teleport(new Position(0, 66, 0));
+                player.setGameMode(GameMode.CREATIVE);
+                player.teleport(new Position(0, 75, 0));
 
             /*Random random = new Random();
             for (int i = 0; i < 50; i++) {

src/main/java/fr/themode/demo/generator/NoiseTestGenerator.java

@@ -0,0 +1,41 @@
+package fr.themode.demo.generator;
+
+import fr.themode.minestom.instance.Biome;
+import fr.themode.minestom.instance.ChunkGenerator;
+import fr.themode.minestom.instance.batch.ChunkBatch;
+import fr.themode.minestom.utils.noise.FastNoise;
+
+import java.util.Random;
+
+public class NoiseTestGenerator extends ChunkGenerator {
+
+    private Random random = new Random();
+    private FastNoise fastNoise = new FastNoise();
+    private int totalChunk = 15;
+
+    {
+        fastNoise.SetNoiseType(FastNoise.NoiseType.Simplex);
+        fastNoise.SetInterp(FastNoise.Interp.Linear);
+    }
+
+    @Override
+    public void generateChunkData(ChunkBatch batch, int chunkX, int chunkZ) {
+        for (byte x = 0; x < 16; x++)
+            for (byte z = 0; z < 16; z++) {
+                float height = fastNoise.GetSimplex(x + 16 * chunkX, z + 16 * chunkZ) * 135;
+                height = Math.max(height, 70);
+                for (byte y = 0; y < height; y++) {
+                    if (random.nextInt(100) > 10) {
+                        batch.setCustomBlock(x, y, z, "custom_block");
+                    } else {
+                        batch.setBlock(x, y, z, (short) 10);
+                    }
+                }
+            }
+    }
+
+    @Override
+    public Biome getBiome(int chunkX, int chunkZ) {
+        return Biome.PLAINS;
+    }
+}

src/main/java/fr/themode/minestom/MinecraftServer.java

@@ -54,8 +54,8 @@ public class MinecraftServer {
     public static final int THREAD_COUNT_SCHEDULER = 1;
 
     // Config
-    public static final int CHUNK_VIEW_DISTANCE = 5;
-    public static final int ENTITY_VIEW_DISTANCE = 2;
+    public static final int CHUNK_VIEW_DISTANCE = 10;
+    public static final int ENTITY_VIEW_DISTANCE = 5;
     // Can be modified at performance cost when decreased
     private static final int MS_TO_SEC = 1000;
     public static final int TICK_MS = MS_TO_SEC / 20;

src/main/java/fr/themode/minestom/entity/Player.java

@@ -886,9 +886,9 @@ public class Player extends LivingEntity {
         int serverRange = MinecraftServer.CHUNK_VIEW_DISTANCE;
         int playerRange = getSettings().viewDistance;
         if (playerRange == 0) {
-            return serverRange; // Didn't receive settings packet yet
+            return serverRange; // Didn't receive settings packet yet (is the case on login)
         } else {
-            return playerRange < serverRange ? playerRange : serverRange;
+            return Math.min(playerRange, serverRange);
         }
     }
 
@@ -901,6 +901,8 @@ public class Player extends LivingEntity {
         OFF
     }
 
+    // Settings enum
+
     public enum MainHand {
         LEFT,
         RIGHT

src/main/java/fr/themode/minestom/instance/Instance.java

@@ -141,11 +141,17 @@ public abstract class Instance implements BlockModifier, DataContainer {
     }
 
     public void loadChunk(Position position, Consumer<Chunk> callback) {
-        int chunkX = Math.floorDiv((int) position.getX(), 16);
-        int chunkZ = Math.floorDiv((int) position.getY(), 16);
+        int chunkX = ChunkUtils.getChunkCoordinate((int) position.getX());
+        int chunkZ = ChunkUtils.getChunkCoordinate((int) position.getZ());
         loadChunk(chunkX, chunkZ, callback);
     }
 
+    public void loadOptionalChunk(Position position, Consumer<Chunk> callback) {
+        int chunkX = ChunkUtils.getChunkCoordinate((int) position.getX());
+        int chunkZ = ChunkUtils.getChunkCoordinate((int) position.getZ());
+        loadOptionalChunk(chunkX, chunkZ, callback);
+    }
+
     public short getBlockId(int x, int y, int z) {
         Chunk chunk = getChunkAt(x, z);
         return chunk.getBlockId((byte) (x % 16), (byte) y, (byte) (z % 16));

src/main/java/fr/themode/minestom/instance/InstanceContainer.java

@@ -35,7 +35,7 @@ public class InstanceContainer extends Instance {
     private ChunkGenerator chunkGenerator;
     private Map<Long, Chunk> chunks = new ConcurrentHashMap<>();
 
-    private boolean autoChunkLoad;
+    private volatile boolean autoChunkLoad;
 
     protected InstanceContainer(UUID uniqueId, File folder) {
         super(uniqueId);
@@ -207,6 +207,7 @@ public class InstanceContainer extends Instance {
     @Override
     public void loadOptionalChunk(int chunkX, int chunkZ, Consumer<Chunk> callback) {
         Chunk chunk = getChunk(chunkX, chunkZ);
+        System.out.println("test load: " + chunk + " : " + hasEnabledAutoChunkLoad());
         if (chunk != null) {
             if (callback != null)
                 callback.accept(chunk);

src/main/java/fr/themode/minestom/net/packet/client/login/LoginStartPacket.java

@@ -46,6 +46,8 @@ public class LoginStartPacket implements ClientPreplayPacket {
         connectionManager.createPlayer(playerUuid, username, connection);
         Player player = connectionManager.getPlayer(connection);
 
+        MinecraftServer.getEntityManager().addWaitingPlayer(player);
+
         GameMode gameMode = GameMode.SURVIVAL;
         Dimension dimension = Dimension.OVERWORLD;
         LevelType levelType = LevelType.DEFAULT;
@@ -94,8 +96,6 @@ public class LoginStartPacket implements ClientPreplayPacket {
         if (playerInitialization != null)
             playerInitialization.accept(player);
 
-        MinecraftServer.getEntityManager().addWaitingPlayer(player);
-
 
         {
             CommandManager commandManager = MinecraftServer.getCommandManager();