That's one heck of a commit you've got there...

I may have got a bit behind with version control. A lot behind, in fact. Maybe I'll go back and split this sometime - then again, I probably won't. But hey, at least it's here!

src/main/java/electroblob/wizardry/data/Persistence.java

@@ -0,0 +1,25 @@
+package electroblob.wizardry.data;
+
+/** Enum which defines the circumstances in which an {@link IVariable} persists, i.e. whether its value is carried over. */
+public enum Persistence {
+
+	NEVER(false, false),
+	DIMENSION_CHANGE(false, true),
+	RESPAWN(true, false),
+	ALWAYS(true, true);
+
+	private boolean persistsOnRespawn, persistsOnDimensionChange;
+
+	Persistence(boolean persistsOnRespawn, boolean persistsOnDimensionChange){
+		this.persistsOnRespawn = persistsOnRespawn;
+		this.persistsOnDimensionChange = persistsOnDimensionChange;
+	}
+
+	public boolean persistsOnRespawn(){
+		return persistsOnRespawn;
+	}
+
+	public boolean persistsOnDimensionChange(){
+		return persistsOnDimensionChange;
+	}
+}