Add Palette#getAll and Palette#setAll

src/main/java/net/minestom/server/instance/palette/Palette.java

@@ -23,10 +23,14 @@ public sealed interface Palette extends Writeable permits PaletteImpl {
 
     int get(int x, int y, int z);
 
+    void getAll(@NotNull EntryConsumer consumer);
+
     void set(int x, int y, int z, int value);
 
     void fill(int value);
 
+    void setAll(@NotNull EntrySupplier supplier);
+
     /**
      * Returns the number of entries in this palette.
      */
@@ -56,4 +60,14 @@ public sealed interface Palette extends Writeable permits PaletteImpl {
     int dimension();
 
     @NotNull Palette clone();
+
+    @FunctionalInterface
+    interface EntrySupplier {
+        int get(int x, int y, int z);
+    }
+
+    @FunctionalInterface
+    interface EntryConsumer {
+        void accept(int x, int y, int z, int value);
+    }
 }

src/main/java/net/minestom/server/instance/palette/PaletteImpl.java

@@ -81,6 +81,18 @@ final class PaletteImpl implements Palette, Cloneable {
         return hasPalette ? paletteToValueList.getInt(value) : value;
     }
 
+    @Override
+    public void getAll(@NotNull EntryConsumer consumer) {
+        // TODO optimize
+        for (int x = 0; x < dimension; x++) {
+            for (int y = 0; y < dimension; y++) {
+                for (int z = 0; z < dimension; z++) {
+                    consumer.accept(x, y, z, get(x, y, z));
+                }
+            }
+        }
+    }
+
     @Override
     public void set(int x, int y, int z, int value) {
         if (x < 0 || y < 0 || z < 0) {
@@ -150,6 +162,18 @@ final class PaletteImpl implements Palette, Cloneable {
         this.count = placedAir ? 0 : maxSize();
     }
 
+    @Override
+    public void setAll(@NotNull EntrySupplier supplier) {
+        // TODO optimize
+        for (int x = 0; x < dimension; x++) {
+            for (int y = 0; y < dimension; y++) {
+                for (int z = 0; z < dimension; z++) {
+                    set(x, y, z, supplier.get(x, y, z));
+                }
+            }
+        }
+    }
+
     @Override
     public int size() {
         return count;

src/test/java/net/minestom/server/instance/PaletteTest.java

@@ -109,6 +109,15 @@ public class PaletteTest {
         }
     }
 
+    @Test
+    public void bulkAll() {
+        var palettes = testPalettes();
+        for (Palette palette : palettes) {
+            palette.setAll((x, y, z) -> x + y + z);
+            palette.getAll((x, y, z, value) -> assertEquals(x + y + z, value));
+        }
+    }
+
     @Test
     public void dimension() {
         assertThrows(Exception.class, () -> Palette.newPalette(-4, 5, 3, 1));