SPIGOT-6992: Add LimitedLife/LifeTicks/Bound APIs to Vex

By: Doc <nachito94@msn.com>

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

@@ -1,5 +1,8 @@
 package org.bukkit.entity;
 
+import org.bukkit.Location;
+import org.jetbrains.annotations.Nullable;
+
 /**
  * Represents a Vex.
  */
@@ -22,4 +25,52 @@ public interface Vex extends Monster {
      * @param charging new state
      */
     void setCharging(boolean charging);
+
+    /**
+     * Gets the bound of this entity.
+     *
+     * An idle vex will navigate a 15x11x15 area centered around its bound
+     * location.
+     *
+     * When summoned by an Evoker, this location will be set to that of the
+     * summoner.
+     *
+     * @return {@link Location} of the bound or null if not set
+     */
+    @Nullable
+    Location getBound();
+
+    /**
+     * Sets the bound of this entity.
+     *
+     * An idle vex will navigate a 15x11x15 area centered around its bound
+     * location.
+     *
+     * When summoned by an Evoker, this location will be set to that of the
+     * summoner.
+     *
+     * @param location {@link Location} of the bound or null to clear
+     */
+    void setBound(@Nullable Location location);
+
+    /**
+     * Gets the remaining lifespan of this entity.
+     *
+     * @return life in ticks
+     */
+    int getLifeTicks();
+
+    /**
+     * Sets the remaining lifespan of this entity.
+     *
+     * @param lifeTicks life in ticks, or negative for unlimited lifepan
+     */
+    void setLifeTicks(int lifeTicks);
+
+    /**
+     * Gets if the entity has a limited life.
+     *
+     * @return true if the entity has limited life
+     */
+    boolean hasLimitedLife();
 }