Downgrade to 1.21

gradle.properties

@@ -5,13 +5,13 @@ org.gradle.parallel=true
 # Fabric Properties
 # check these on https://fabricmc.net/develop
 
-minecraft_version=1.21.5
-yarn_mappings=1.21.5+build.1
+minecraft_version=1.21
+yarn_mappings=1.21+build.1
 loader_version=0.16.14
 loom_version=1.10-SNAPSHOT
 
 # Fabric API
-fabric_version=0.119.3+1.21.5
+fabric_version=0.100.3+1.21
 
 # Mod Properties
 mod_version = 2.2.2

src/main/java/de/steamwar/advancedscripts/screen/ScriptEditScreen.java

@@ -73,7 +73,7 @@ public class ScriptEditScreen extends Screen {
         this.itemStack = itemStack;
         this.hand = hand;
 
-        List<RawFilteredPair<String>> pages = itemStack.get(DataComponentTypes.WRITABLE_BOOK_CONTENT).pages();
+        List<RawFilteredPair<String>> pages = itemStack.getComponents().get(DataComponentTypes.WRITABLE_BOOK_CONTENT).pages();
         pages.forEach(stringRawFilteredPair -> {
             for (String s : stringRawFilteredPair.raw().split("\n")) {
                 if (s.isEmpty()) {
@@ -103,7 +103,7 @@ public class ScriptEditScreen extends Screen {
         this.addDrawableChild(
                 new Button(BOOK, this.width - 98 - 5, height - 20 - 5, () -> {
                     finalizeBook();
-                    this.client.setScreen(new BookEditScreen(player, itemStack, hand, toContent(toPages())));
+                    this.client.setScreen(new BookEditScreen(player, itemStack, hand));
                 })
         );
     }
@@ -157,7 +157,7 @@ public class ScriptEditScreen extends Screen {
     }
 
     @Override
-    protected void applyBlur() {
+    protected void applyBlur(float delta) {
     }
 
     @Override
@@ -634,7 +634,7 @@ public class ScriptEditScreen extends Screen {
     private void finalizeBook() {
         List<String> pages = toPages();
         this.writeNbtData(pages);
-        int i = this.hand == Hand.MAIN_HAND ? this.player.getInventory().getSelectedSlot() : 40;
+        int i = this.hand == Hand.MAIN_HAND ? this.player.getInventory().selectedSlot : 40;
         this.client.getNetworkHandler().sendPacket(new BookUpdateC2SPacket(i, pages, Optional.empty()));
     }