Fix ChunkPosition

connector/src/main/java/org/geysermc/connector/world/chunk/ChunkPosition.java

@@ -27,12 +27,14 @@ package org.geysermc.connector.world.chunk;
 
 import com.github.steveice10.mc.protocol.data.game.entity.metadata.Position;
 import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.Setter;
 
 @Getter
 @Setter
 @AllArgsConstructor
+@EqualsAndHashCode
 public class ChunkPosition {
 
     private int x;
@@ -43,16 +45,9 @@ public class ChunkPosition {
     }
 
     public Position getChunkBlock(int x, int y, int z) {
-        int chunkX = x % 16;
-        int chunkY = y % 16;
-        int chunkZ = z % 16;
-
-        if (chunkX < 0)
-            chunkX = -chunkX;
-        if (chunkY < 0)
-            chunkY = -chunkY;
-        if (chunkZ < 0)
-            chunkZ = -chunkZ;
+        int chunkX = x & 15;
+        int chunkY = y & 15;
+        int chunkZ = z & 15;
 
         return new Position(chunkX, chunkY, chunkZ);
     }