Started work on Demon Will Inversion system.

src/main/java/WayofTime/bloodmagic/demonAura/WillChunk.java

@@ -0,0 +1,41 @@
+package WayofTime.bloodmagic.demonAura;
+
+import java.lang.ref.WeakReference;
+
+import lombok.Getter;
+import lombok.Setter;
+import net.minecraft.world.chunk.Chunk;
+import WayofTime.bloodmagic.api.soul.DemonWillHolder;
+
+@Getter
+@Setter
+public class WillChunk
+{
+    PosXY loc;
+    private short base;
+    private DemonWillHolder currentWill = new DemonWillHolder();
+    private WeakReference<Chunk> chunkRef;
+
+    public WillChunk(PosXY loc)
+    {
+        this.loc = loc;
+    }
+
+    public WillChunk(Chunk chunk, short base, DemonWillHolder currentWill)
+    {
+        this.loc = new PosXY(chunk.xPosition, chunk.zPosition);
+        this.chunkRef = new WeakReference(chunk);
+        this.base = base;
+        this.currentWill = currentWill;
+    }
+
+    public boolean isModified()
+    {
+        if ((this.chunkRef != null) && (this.chunkRef.get() != null))
+        {
+            return ((Chunk) this.chunkRef.get()).needsSaving(false);
+        }
+
+        return false;
+    }
+}