Fixed formatting, import and small optimization

src/main/java/io/github/thebusybiscuit/slimefun4/core/attributes/HologramOwner.java

@@ -32,7 +32,7 @@ public interface HologramOwner extends ItemAttribute {
      *            The nametag for the hologram
      */
     default void updateHologram(@Nonnull Block b, @Nonnull String text) {
-        Location loc = b.getLocation().add(getHologramOffset());
+        Location loc = b.getLocation().add(getHologramOffset(b));
         SlimefunPlugin.getHologramsService().setHologramLabel(loc, ChatColors.color(text));
     }
 
@@ -43,7 +43,7 @@ public interface HologramOwner extends ItemAttribute {
      *            The {@link Block} to which the hologram blocks
      */
     default void removeHologram(@Nonnull Block b) {
-        Location loc = b.getLocation().add(getHologramOffset());
+        Location loc = b.getLocation().add(getHologramOffset(b));
         SlimefunPlugin.getHologramsService().removeHologram(loc);
     }
 
@@ -52,11 +52,14 @@ public interface HologramOwner extends ItemAttribute {
      * This offset is applied to {@link Block#getLocation()} when spawning
      * the hologram.
      * 
+     * @param block
+     *            The {@link Block} which serves as the origin point
+     * 
      * @return The hologram offset
      */
     @Nonnull
-    default Vector getHologramOffset() {
+    default Vector getHologramOffset(@Nonnull Block block) {
-        return new Vector(0.5, 0.75, 0.5);
+        return SlimefunPlugin.getHologramsService().getDefaultOffset();
     }
 
 }

src/main/java/io/github/thebusybiscuit/slimefun4/core/services/holograms/Hologram.java

@@ -1,5 +1,6 @@
 package io.github.thebusybiscuit.slimefun4.core.services.holograms;
 
+import java.util.Objects;
 import java.util.UUID;
 import java.util.concurrent.TimeUnit;
 
@@ -10,7 +11,6 @@ import org.bukkit.Bukkit;
 import org.bukkit.entity.ArmorStand;
 import org.bukkit.entity.Entity;
 
-import com.google.common.base.Objects;
 
 /**
  * This represents an {@link ArmorStand} that can expire and be renamed.
@@ -99,7 +99,7 @@ class Hologram {
      *            The label to set
      */
     void setLabel(@Nullable String label) {
-        if (Objects.equal(this.label, label)) {
+        if (Objects.equals(this.label, label)) {
             /*
              * Label is already set, no need to cause an entity
              * update. But we can update the lastAccess flag.

src/main/java/io/github/thebusybiscuit/slimefun4/core/services/holograms/HologramsService.java

@@ -21,6 +21,7 @@ import org.bukkit.entity.EntityType;
 import org.bukkit.persistence.PersistentDataContainer;
 import org.bukkit.persistence.PersistentDataType;
 import org.bukkit.plugin.Plugin;
+import org.bukkit.util.Vector;
 
 import io.github.thebusybiscuit.cscorelib2.blocks.BlockPosition;
 import io.github.thebusybiscuit.slimefun4.core.attributes.HologramOwner;
@@ -51,6 +52,11 @@ public class HologramsService {
      */
     private final Plugin plugin;
 
+    /**
+     * The default hologram offset
+     */
+    private final Vector defaultOffset = new Vector(0.5, 0.75, 0.5);
+
     /**
      * The {@link NamespacedKey} used to store data on a hologram
      */
@@ -82,6 +88,16 @@ public class HologramsService {
         plugin.getServer().getScheduler().scheduleSyncRepeatingTask(plugin, this::purge, PURGE_RATE, PURGE_RATE);
     }
 
+    /**
+     * This returns the default {@link Hologram} offset.
+     * 
+     * @return The default offset
+     */
+    @Nonnull
+    public Vector getDefaultOffset() {
+        return defaultOffset;
+    }
+
     /**
      * This purges any expired {@link Hologram}.
      */
@@ -252,9 +268,8 @@ public class HologramsService {
      * @param loc
      *            The {@link Location}
      * 
-     * @return Whether the {@link Hologram} could be removed, false if the {@link Hologram} does not exist or was
+     * @return Whether the {@link Hologram} could be removed, false if the {@link Hologram} does not
-     *         already
+     *         exist or was already removed
-     *         removed
      */
     public boolean removeHologram(@Nonnull Location loc) {
         Validate.notNull(loc, "Location cannot be null");