Implement Area for FixedRegion

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/region/Region.java

@@ -19,7 +19,8 @@
 
 package de.steamwar.bausystem.region;
 
-import com.sk89q.worldedit.EditSession;
+import com.sk89q.worldedit.extent.clipboard.Clipboard;
+import de.steamwar.bausystem.utils.FlatteningWrapper;
 import de.steamwar.bausystem.utils.PasteBuilder;
 import lombok.NonNull;
 import org.bukkit.Location;
@@ -100,7 +101,7 @@ public interface Region {
             }
 
             @Override
-            public EditSession copy(boolean extension) {
+            public Clipboard copy(boolean extension) {
                 return null;
             }
 
@@ -146,7 +147,9 @@ public interface Region {
         }
 
         @Nullable
-        EditSession copy(boolean extension);
+        default Clipboard copy(boolean extension) {
+            return FlatteningWrapper.impl.copy(getMinPoint(extension), getMaxPoint(extension), getCopyPoint());
+        }
 
         @Nullable
         File getResetFile();