Add can-despawn (boolean) property to allow custom mobs to despawn,…

… even with

a custom name.

Can be used to despawn custom-spawned shulkers in the end, i.e.:

    `/beast-mob set shulker can-despawn true`

pom.xml

@@ -4,7 +4,7 @@
 	<groupId>nu.nerd</groupId>
 	<name>BeastMaster</name>
 	<artifactId>${project.name}</artifactId>
-	<version>2.5.0</version>
+	<version>2.6.0</version>
 	<packaging>jar</packaging>
 	<description>Handles custom mob spawning.</description>
 	<url>https://github.com/NerdNu/${project.name}</url>

src/nu/nerd/beastmaster/mobs/MobType.java

@@ -490,6 +490,12 @@ protected void addProperties() {
                 double percent = (Double) getDerivedProperty("off-hand-drop-percent").getValue();
                 mob.getEquipment().setItemInOffHandDropChance((float) percent / 100);
             }));
+        // Added after custom name => will clear PersistenceRequired NBT.
+        addProperty(new MobProperty("can-despawn", DataType.BOOLEAN,
+            (mob, logger) -> {
+                boolean canDespawn = (Boolean) getDerivedProperty("can-despawn").getValue();
+                mob.setRemoveWhenFarAway(canDespawn);
+            }));
 
         // TODO: use AIR to signify clearing the default armour/weapon.
         // TODO: Disguise property.