Book pile improvements.

CHANGELOG.md

@@ -111,4 +111,9 @@
 - Fixed render rules model injection issues.
 - Fixed shelves not respecting locks (NBT property `Lock`).
 
+### 1.0.0-beta.21
+
+- Fixed multiplayer synchronization issues with book piles.
+- Made book pile unmodifiable for players in adventure game mode.
+
 [EMI]: https://modrinth.com/mod/emi "EMI Modrinth page"

gradle.properties

@@ -1,7 +1,7 @@
 org.gradle.jvmargs=-Xmx1G
 
 # Mod properties
-mod_version=1.0.0-beta.20
+mod_version=1.0.0-beta.21
 maven_group=dev.lambdaurora
 archives_base_name=aurorasdecorations
 modrinth_id=GOqAnOfW

src/main/java/dev/lambdaurora/aurorasdeco/block/BookPileBlock.java

@@ -127,6 +127,10 @@ public ActionResult onUse(BlockState state, World world, BlockPos pos, PlayerEnt
 			BlockHitResult hit) {
 		var stack = player.getStackInHand(hand);
 
+		if (!player.getAbilities().allowModifyWorld) {
+			return ActionResult.PASS;
+		}
+
 		if (stack.isOf(Items.BOOK) || stack.isOf(Items.ENCHANTED_BOOK)) {
 			var bookPile = AurorasDecoRegistry.BOOK_PILE_BLOCK_ENTITY_TYPE.get(world, pos);
 			if (bookPile != null && !bookPile.isFull()) {

src/main/java/dev/lambdaurora/aurorasdeco/block/entity/BookPileBlockEntity.java

@@ -54,7 +54,7 @@ public void insertBook(ItemStack stack) {
 				copy.setCount(1);
 				this.books.set(i, copy);
 
-				this.markDirty();
+				this.attemptToSync();
 				return;
 			}
 		}
@@ -65,11 +65,20 @@ public ItemStack removeBook(int slot) {
 		var copy = stack.copy();
 		if (!stack.isEmpty()) {
 			stack.setCount(0);
-			this.markDirty();
+			this.attemptToSync();
 		}
 		return copy;
 	}
 
+	/* Sync */
+
+	private void attemptToSync() {
+		if (this.world != null && !this.world.isClient()) {
+			this.markDirty();
+			this.sync();
+		}
+	}
+
 	/* Serialization */
 
 	@Override