aa52bf9e33
Mojang made some changes to priorities in 1.17 and it seems that these changes conflict with the changes made in this patch, which in some cases appears to cause excessive rescheduling of tasks. This, however, is not confirmed as such but seems to be the behavior that we're seeing to cause this issue, if mojang has adopted the changes we suggested, then a good chunk of this patch may be unneeded, but, this needs a much better look than I'm currently able to do
47 lines
2.6 KiB
Diff
47 lines
2.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Alexander <protonull@protonmail.com>
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Date: Thu, 6 May 2021 13:01:25 +0100
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Subject: [PATCH] Have CraftMerchantCustom emit PlayerPurchaseEvent
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diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMerchantCustom.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMerchantCustom.java
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index f40d6a0048ad5b3f6e31d83894ee89f5ca64fb3a..56a04cfdedfbc34be686304fc2dde59f1707d282 100644
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--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMerchantCustom.java
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+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMerchantCustom.java
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@@ -81,6 +81,35 @@ public class CraftMerchantCustom extends CraftMerchant {
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@Override
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public void notifyTrade(MerchantOffer offer) {
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+ // Paper start
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+ /** Based on {@link net.minecraft.world.entity.npc.EntityVillagerAbstract#b(MerchantRecipe)} */
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+ if (getTradingPlayer() instanceof net.minecraft.server.level.ServerPlayer) {
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+ final net.minecraft.server.level.ServerPlayer trader = (net.minecraft.server.level.ServerPlayer) getTradingPlayer();
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+ final io.papermc.paper.event.player.PlayerPurchaseEvent event = new io.papermc.paper.event.player.PlayerPurchaseEvent(
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+ trader.getBukkitEntity(),
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+ offer.asBukkit(),
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+ false, // reward xp?
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+ true); // should increase uses?
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+ event.callEvent();
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+ if (event.isCancelled()) {
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+ return;
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+ }
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+ final org.bukkit.inventory.MerchantRecipe eventTrade = event.getTrade();
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+ if (event.willIncreaseTradeUses()) {
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+ eventTrade.setUses(eventTrade.getUses() + 1);
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+ }
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+ if (event.isRewardingExp() && eventTrade.hasExperienceReward()) {
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+ /** Based on {@link net.minecraft.world.entity.npc.EntityVillagerTrader#b(MerchantRecipe)} */
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+ final int xp = 3 + net.minecraft.world.entity.Entity.SHARED_RANDOM.nextInt(4);
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+ final Level world = trader.getCommandSenderWorld();
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+ world.addFreshEntity(new net.minecraft.world.entity.ExperienceOrb(
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+ world, trader.getX(), trader.getY() + 0.5d, trader.getZ(), xp,
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+ org.bukkit.entity.ExperienceOrb.SpawnReason.VILLAGER_TRADE, trader, null));
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+ }
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+ return;
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+ }
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+ // Paper end
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+
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// increase recipe's uses
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offer.increaseUses();
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}
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