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https://github.com/PaperMC/Paper.git
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59 lines
3.2 KiB
Diff
59 lines
3.2 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/net/minecraft/world/item/trading/IMerchant.java b/src/main/java/net/minecraft/world/item/trading/IMerchant.java
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index 5644affeadc51ac3209ee9a087b3d2dd887e401c..7c54ca6af424b9d31f73187df9015f5df84762f4 100644
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--- a/src/main/java/net/minecraft/world/item/trading/IMerchant.java
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+++ b/src/main/java/net/minecraft/world/item/trading/IMerchant.java
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@@ -19,7 +19,7 @@ public interface IMerchant {
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MerchantRecipeList getOffers();
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- void a(MerchantRecipe merchantrecipe);
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+ void a(MerchantRecipe merchantrecipe); default void handlePurchase(MerchantRecipe merchantRecipe) { a(merchantRecipe); } // Paper - OBFHELPER
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void k(ItemStack itemstack);
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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 206c133ebc6c44038585236b0628543b8bed278c..a7230776b8e85d5d1873ab2dc4e10c5bf78889bb 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 a(MerchantRecipe merchantrecipe) {
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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 (getTrader() instanceof net.minecraft.server.level.EntityPlayer) {
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+ final net.minecraft.server.level.EntityPlayer trader = (net.minecraft.server.level.EntityPlayer) getTrader();
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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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+ merchantrecipe.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 World world = trader.getWorld();
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+ world.addEntity(new net.minecraft.world.entity.EntityExperienceOrb(
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+ world, trader.locX(), trader.locY() + 0.5d, trader.locZ(), 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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merchantrecipe.increaseUses();
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}
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