Improve Region.Area

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/utils/PasteBuilder.java

@@ -42,7 +42,7 @@ import java.util.function.BiPredicate;
 @Getter
 public class PasteBuilder {
 
-    private final ClipboardProvider clipboardProvider;
+    private ClipboardProvider clipboardProvider;
     private Point pastPoint;
     private boolean rotate;
     private boolean ignoreAir;
@@ -53,21 +53,18 @@ public class PasteBuilder {
     private List<BiPredicate<BaseBlock, String>> predicates = new ArrayList<>();
     private List<BiConsumer<Clipboard, BlockVector3>> mappers = new ArrayList<>();
 
+    public PasteBuilder() {
+        clipboardProvider = ClipboardProvider.EMPTY;
+    }
+
     public PasteBuilder(@NonNull ClipboardProvider clipboardProvider) {
         this.clipboardProvider = clipboardProvider;
     }
 
-    public PasteBuilder with(ClipboardProvider clipboardProvider) {
-        return new PasteBuilder(clipboardProvider)
-                .pastePoint(pastPoint)
-                .rotate(rotate)
-                .ignoreAir(ignoreAir)
-                .reset(reset)
-                .minPoint(minPoint)
-                .maxPoint(maxPoint)
-                .waterLevel(waterLevel)
-                .predicates(predicates)
-                .mappers(mappers);
+    public PasteBuilder with(@NonNull ClipboardProvider clipboardProvider) {
+        if (this.clipboardProvider != ClipboardProvider.EMPTY) return this;
+        this.clipboardProvider = clipboardProvider;
+        return this;
     }
 
     public PasteBuilder pastePoint(Point point) {
@@ -212,6 +209,20 @@ public class PasteBuilder {
     }
 
     public interface ClipboardProvider {
+        ClipboardProvider EMPTY = new EmptyProvider();
+
+        static ClipboardProvider file(File file) {
+            return new FileProvider(file);
+        }
+
+        static ClipboardProvider schematic(SchematicNode schematic) {
+            return new SchematicProvider(schematic);
+        }
+
+        static ClipboardProvider clipboard(Clipboard clipboard) {
+            return new ClipboardProviderImpl(clipboard);
+        }
+
         Clipboard getClipboard();
 
         default <T extends ClipboardProvider> boolean is(Class<T> clazz) {
@@ -223,12 +234,22 @@ public class PasteBuilder {
         }
     }
 
+    private static class EmptyProvider implements ClipboardProvider {
+        private EmptyProvider() {
+        }
+
+        @Override
+        public Clipboard getClipboard() {
+            return null;
+        }
+    }
+
     @Getter
     public static class FileProvider implements ClipboardProvider {
         private final File file;
         private final Clipboard clipboard;
 
-        public FileProvider(File file) {
+        private FileProvider(File file) {
             this.file = file;
             this.clipboard = FlatteningWrapper.impl.loadSchematic(file);
         }
@@ -244,7 +265,7 @@ public class PasteBuilder {
         private final SchematicNode schematic;
         private final Clipboard clipboard;
 
-        public SchematicProvider(SchematicNode schematic) {
+        private SchematicProvider(SchematicNode schematic) {
             this.schematic = schematic;
             try {
                 this.clipboard = new SchematicData(schematic).load();
@@ -263,7 +284,7 @@ public class PasteBuilder {
     public static class ClipboardProviderImpl implements ClipboardProvider {
         private final Clipboard clipboard;
 
-        public ClipboardProviderImpl(Clipboard clipboard) {
+        private ClipboardProviderImpl(Clipboard clipboard) {
             this.clipboard = clipboard;
         }