Chunk cache improvements (#2053)

- Check for minimum and maximum Y values to fix stack traces
- Don't run half of the villager sleeping code unless they're actually sleeping

connector/src/main/java/org/geysermc/connector/entity/FishingHookEntity.java

@@ -96,7 +96,6 @@ public class FishingHookEntity extends ThrowableEntity {
         boolean touchingWater = false;
         boolean collided = false;
         for (Vector3i blockPos : collidableBlocks) {
-            if (0 <= blockPos.getY() && blockPos.getY() <= 255) {
             int blockID = session.getConnector().getWorldManager().getBlockAt(session, blockPos);
             BlockCollision blockCollision = CollisionTranslator.getCollision(blockID, blockPos.getX(), blockPos.getY(), blockPos.getZ());
             if (blockCollision != null && blockCollision.checkIntersection(boundingBox)) {
@@ -119,7 +118,6 @@ public class FishingHookEntity extends ThrowableEntity {
                 }
             }
         }
-        }
 
         if (!inWater && touchingWater) {
             sendSplashSound(session);
@@ -177,11 +175,9 @@ public class FishingHookEntity extends ThrowableEntity {
      */
     protected boolean isInAir(GeyserSession session) {
         if (session.getConnector().getConfig().isCacheChunks()) {
-            if (0 <= position.getFloorY() && position.getFloorY() <= 255) {
             int block = session.getConnector().getWorldManager().getBlockAt(session, position.toInt());
             return block == BlockTranslator.JAVA_AIR_ID;
         }
-        }
         return false;
     }
 

connector/src/main/java/org/geysermc/connector/entity/living/merchant/VillagerEntity.java

@@ -26,7 +26,6 @@
 package org.geysermc.connector.entity.living.merchant;
 
 import com.github.steveice10.mc.protocol.data.game.entity.metadata.EntityMetadata;
-import com.github.steveice10.mc.protocol.data.game.entity.metadata.Position;
 import com.github.steveice10.mc.protocol.data.game.entity.metadata.VillagerData;
 import com.nukkitx.math.vector.Vector3f;
 import com.nukkitx.math.vector.Vector3i;
@@ -101,11 +100,17 @@ public class VillagerEntity extends AbstractMerchantEntity {
     
     @Override
     public void moveRelative(GeyserSession session, double relX, double relY, double relZ, Vector3f rotation, boolean isOnGround) {
+        if (!metadata.getFlags().getFlag(EntityFlag.SLEEPING)) {
+            // No need to worry about extra processing to compensate for sleeping
+            super.moveRelative(session, relX, relY, relZ, rotation, isOnGround);
+            return;
+        }
+
         int z = 0;
         int bedId = 0;
         float bedPositionSubtractorW = 0;
         float bedPositionSubtractorN = 0;
-        Vector3i bedPosition = metadata.getPos(EntityData.BED_POSITION);
+        Vector3i bedPosition = metadata.getPos(EntityData.BED_POSITION, null);
         if (session.getConnector().getConfig().isCacheChunks() && bedPosition != null) {
             bedId = session.getConnector().getWorldManager().getBlockAt(session, bedPosition);
         }
@@ -117,11 +122,6 @@ public class VillagerEntity extends AbstractMerchantEntity {
         MoveEntityAbsolutePacket moveEntityPacket = new MoveEntityAbsolutePacket();
         moveEntityPacket.setRuntimeEntityId(geyserId);
         //Sets Villager position and rotation when sleeping
-        if (!metadata.getFlags().getFlag(EntityFlag.SLEEPING)) {
-            moveEntityPacket.setPosition(position);
-            moveEntityPacket.setRotation(getBedrockRotation());
-        } else {
-            //String Setup
         Pattern r = Pattern.compile("facing=([a-z]+)");
         Matcher m = r.matcher(bedRotationZ);
         if (m.find()) {
@@ -149,7 +149,6 @@ public class VillagerEntity extends AbstractMerchantEntity {
         }
         moveEntityPacket.setRotation(Vector3f.from(0, 0, z));
         moveEntityPacket.setPosition(Vector3f.from(position.getX() + bedPositionSubtractorW, position.getY(), position.getZ() + bedPositionSubtractorN));
-        }
         moveEntityPacket.setOnGround(isOnGround);
         moveEntityPacket.setTeleported(false);
         session.sendUpstreamPacket(moveEntityPacket);

connector/src/main/java/org/geysermc/connector/network/session/cache/ChunkCache.java

@@ -34,6 +34,7 @@ import org.geysermc.connector.network.translators.world.block.BlockTranslator;
 import org.geysermc.connector.utils.MathUtils;
 
 public class ChunkCache {
+    private static final int MINIMUM_WORLD_HEIGHT = 0;
 
     private final boolean cache;
 
@@ -86,6 +87,11 @@ public class ChunkCache {
             return;
         }
 
+        if (y < MINIMUM_WORLD_HEIGHT || (y >> 4) > column.getChunks().length - 1) {
+            // Y likely goes above or below the height limit of this world
+            return;
+        }
+
         Chunk chunk = column.getChunks()[y >> 4];
         if (chunk != null) {
             chunk.set(x & 0xF, y & 0xF, z & 0xF, block);
@@ -102,6 +108,11 @@ public class ChunkCache {
             return BlockTranslator.JAVA_AIR_ID;
         }
 
+        if (y < MINIMUM_WORLD_HEIGHT || (y >> 4) > column.getChunks().length - 1) {
+            // Y likely goes above or below the height limit of this world
+            return BlockTranslator.JAVA_AIR_ID;
+        }
+
         Chunk chunk = column.getChunks()[y >> 4];
         if (chunk != null) {
             return chunk.get(x & 0xF, y & 0xF, z & 0xF);