`PlayerEvent.PLAYER_ADVANCEMENT` works differently on Fabric and NeoForge

[teddyxlandlee]

What happened

I tried to listen a hidden advancement (whose display is absent, e.g. minecraft:recipes/transportation/acacia_boat) using PlayerEvent.PLAYER_ADVANCEMENT.

Expected behavior

It can be listened on both Fabric and NeoForge.

Actual behavior

It can be listened on Fabric, but not on NeoForge.

Platform

• Minecraft: 1.21.8
• Architectury: 17.0.8
• Fabric: Latest Fabric API/Loaderr
• NeoForge: 21.8.36

Code analysis

While architectury-fabric mixins the listener on its own, architectury-neoforge, however, uses the wheel provided by NeoForge API, causing different effects between platforms.

This is PlayerAdvancements.award(AdvancementHolder, String) (mojmaps):

	public boolean award(AdvancementHolder advancement, String criterionKey) {
		boolean bl = false;
		AdvancementProgress advancementProgress = this.getOrStartProgress(advancement);
		boolean bl2 = advancementProgress.isDone();
		if (advancementProgress.grantProgress(criterionKey)) {
			this.unregisterListeners(advancement);
			this.progressChanged.add(advancement);
			bl = true;
			if (!bl2 && advancementProgress.isDone()) {
				advancement.value().rewards().grant(this.player);
				// Where architectury-fabric plugs in its mixin
				advancement.value().display().ifPresent(displayInfo -> {
					if (displayInfo.shouldAnnounceChat() && this.player.level().getGameRules().getBoolean(GameRules.RULE_ANNOUNCE_ADVANCEMENTS)) {
						this.playerList.broadcastSystemMessage(displayInfo.getType().createAnnouncement(advancement, this.player), false); AdvancementEvent.AdvancementEarnEvent
					}
					// Where NeoForge API listens
				});
			}
		}

		if (!bl2 && advancementProgress.isDone()) {
			this.markForVisibilityUpdate(advancement);
		}

		return bl;
	}

How to resolve

Since hidden advancements also deserve listening, it's suggested that architectury-neoforge abandons AdvancementEvent.AdvancementEarnEvent and uses the mixin as well, to match Fabric.