From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: BillyGalbreath Date: Tue, 8 Dec 2020 20:14:20 -0600 Subject: [PATCH] Fix curing zombie villager discount exploit This fixes the exploit used to gain absurd trading discounts with infecting and curing a villager on repeat by simply resetting the relevant part of the reputation when it is cured. diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java index e51c66ca0005ecb22ca99d33d2e37900eccf9c73..ba39026cc7ba904d6f9d8226fae01943544445e9 100644 --- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java +++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java @@ -79,6 +79,11 @@ public class PaperWorldConfig { fixClimbingBypassingCrammingRule = getBoolean("fix-climbing-bypassing-cramming-rule", fixClimbingBypassingCrammingRule); } + public boolean fixCuringZombieVillagerDiscountExploit = true; + private void fixCuringExploit() { + fixCuringZombieVillagerDiscountExploit = getBoolean("game-mechanics.fix-curing-zombie-villager-discount-exploit", fixCuringZombieVillagerDiscountExploit); + } + public short keepLoadedRange; private void keepLoadedRange() { keepLoadedRange = (short) (getInt("keep-spawn-loaded-range", Math.min(spigotConfig.viewDistance, 10)) * 16); diff --git a/src/main/java/net/minecraft/world/entity/npc/Villager.java b/src/main/java/net/minecraft/world/entity/npc/Villager.java index fe9ee43bf0c49c0541bc4fb114e63b8a0fcf1967..18b35c8d2160d24c31483edef13cc5e8d93ed09b 100644 --- a/src/main/java/net/minecraft/world/entity/npc/Villager.java +++ b/src/main/java/net/minecraft/world/entity/npc/Villager.java @@ -1056,6 +1056,15 @@ public class Villager extends AbstractVillager implements ReputationEventHandler @Override public void onReputationEventFrom(ReputationEventType interaction, Entity entity) { if (interaction == ReputationEventType.ZOMBIE_VILLAGER_CURED) { + // Paper start - fix MC-181190 + if (level.paperConfig.fixCuringZombieVillagerDiscountExploit) { + final GossipContainer.EntityGossips playerReputation = this.getReputation().getReputations().get(entity.getUUID()); + if (playerReputation != null) { + playerReputation.remove(GossipType.MAJOR_POSITIVE); + playerReputation.remove(GossipType.MINOR_POSITIVE); + } + } + // Paper end this.gossips.add(entity.getUUID(), GossipType.MAJOR_POSITIVE, 20); this.gossips.add(entity.getUUID(), GossipType.MINOR_POSITIVE, 25); } else if (interaction == ReputationEventType.TRADE) {