Missing Entity API

Co-authored-by: Nassim Jahnke <nassim@njahnke.dev>
Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
Co-authored-by: William Blake Galbreath <blake.galbreath@gmail.com>
Co-authored-by: SoSeDiK <mrsosedik@gmail.com>
Co-authored-by: booky10 <boooky10@gmail.com>
Co-authored-by: Amin <amin.haddou@frg.wwschool.de>
Co-authored-by: TrollyLoki <trollyloki@gmail.com>
Co-authored-by: FireInstall <kettnerl@hu-berlin.de>
Co-authored-by: maxcom1 <46265094+maxcom1@users.noreply.github.com>
Co-authored-by: TotalledZebra <Holappa57@gmail.com>

paper-api/src/main/java/org/bukkit/entity/Entity.java

@@ -293,6 +293,40 @@ public interface Entity extends Metadatable, CommandSender, Nameable, Persistent
      */
     boolean isFrozen();
 
+    // Paper start - missing entity api
+    /**
+     * Sets whether the entity is invisible or not.
+     * <p>
+     * This setting is undefined for non-living entities like boats or paintings.
+     * Non-living entities that are marked as invisible through this method may e.g. only hide their shadow.
+     * To hide such entities from players completely, see {@link Player#hideEntity(org.bukkit.plugin.Plugin, Entity)}.
+     *
+     * @param invisible If the entity is invisible
+     */
+    void setInvisible(boolean invisible); // Paper - moved up from LivingEntity
+
+    /**
+     * Gets whether the entity is invisible or not.
+     *
+     * @return Whether the entity is invisible
+     */
+    boolean isInvisible(); // Paper - moved up from LivingEntity
+
+    /**
+     * Sets this entities no physics status.
+     *
+     * @param noPhysics boolean indicating if the entity should not have physics.
+     */
+    void setNoPhysics(boolean noPhysics);
+
+    /**
+     * Gets if this entity has no physics.
+     *
+     * @return true if the entity does not have physics.
+     */
+    boolean hasNoPhysics();
+    // Paper end - missing entity api
+
     /**
      * Mark the entity's removal.
      *