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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <blake.galbreath@gmail.com>
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 6262246c4018c660705fbad028f297fc44e7197f..9ebe8771c2d5e843756868824740ef599ca8455f 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -715,4 +715,9 @@ public class PaperWorldConfig {
private void fixClimbingBypassingCrammingRule() {
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);
+ }
}
diff --git a/src/main/java/net/minecraft/world/entity/ai/gossip/Reputation.java b/src/main/java/net/minecraft/world/entity/ai/gossip/Reputation.java
index 7d34d1157786227ac210edc1595a024ccb61a3e9..ce8a4cc9f642a740947c4e63d6eb78ad93a0fd44 100644
--- a/src/main/java/net/minecraft/world/entity/ai/gossip/Reputation.java
+++ b/src/main/java/net/minecraft/world/entity/ai/gossip/Reputation.java
@@ -223,6 +223,7 @@ public class Reputation {
}
+ public final void removeReputationForType(ReputationType reputationType) { this.b(reputationType); } // Paper - OBFHELPER
public void b(ReputationType reputationtype) {
this.a.removeInt(reputationtype);
}
diff --git a/src/main/java/net/minecraft/world/entity/npc/EntityVillager.java b/src/main/java/net/minecraft/world/entity/npc/EntityVillager.java
index 382059b2c2b6a7b8231b3c3a5c9a401091b1ad18..2d0b83923d58cc7b6918b4e2ff2bece13ca26899 100644
--- a/src/main/java/net/minecraft/world/entity/npc/EntityVillager.java
+++ b/src/main/java/net/minecraft/world/entity/npc/EntityVillager.java
@@ -1007,6 +1007,15 @@ public class EntityVillager extends EntityVillagerAbstract implements Reputation
@Override
public void a(ReputationEvent reputationevent, Entity entity) {
if (reputationevent == ReputationEvent.a) {
+ // Paper start - fix MC-181190
+ if (world.paperConfig.fixCuringZombieVillagerDiscountExploit) {
+ final Reputation.a playerReputation = this.getReputation().getReputations().get(entity.getUniqueID());
+ if (playerReputation != null) {
+ playerReputation.removeReputationForType(ReputationType.MAJOR_POSITIVE);
+ playerReputation.removeReputationForType(ReputationType.MINOR_POSITIVE);
+ }
+ }
+ // Paper end
this.by.a(entity.getUniqueID(), ReputationType.MAJOR_POSITIVE, 20);
this.by.a(entity.getUniqueID(), ReputationType.MINOR_POSITIVE, 25);
} else if (reputationevent == ReputationEvent.e) {
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