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https://github.com/PaperMC/Paper.git
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45 lines
2.5 KiB
Diff
45 lines
2.5 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: BillyGalbreath <blake.galbreath@gmail.com>
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Date: Tue, 8 Dec 2020 20:14:20 -0600
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Subject: [PATCH] Fix curing zombie villager discount exploit
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This fixes the exploit used to gain absurd trading discounts with infecting
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and curing a villager on repeat by simply resetting the reputation when it
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is cured.
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diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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index 5596d9f42523dbcbad47d21a4b2fdba39e3c5590..ae5ed3bd0b663092a4658b24cbd69d37b4e141cb 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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@@ -704,4 +704,9 @@ public class PaperWorldConfig {
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private void fixClimbingBypassingCrammingRule() {
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fixClimbingBypassingCrammingRule = getBoolean("fix-climbing-bypassing-cramming-rule", fixClimbingBypassingCrammingRule);
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}
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+
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+ public boolean fixCuringZombieVillagerDiscountExploit = true;
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+ private void fixCuringExploit() {
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+ fixCuringZombieVillagerDiscountExploit = getBoolean("game-mechanics.fix-curing-zombie-villager-discount-exploit", fixCuringZombieVillagerDiscountExploit);
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+ }
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}
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diff --git a/src/main/java/net/minecraft/server/EntityVillager.java b/src/main/java/net/minecraft/server/EntityVillager.java
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index 0388d1099f2a6d436a5a5e58bbbdae3ddab969e7..9b35c8ad9efe9241fe442bc6ef2e9f62def386d8 100644
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--- a/src/main/java/net/minecraft/server/EntityVillager.java
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+++ b/src/main/java/net/minecraft/server/EntityVillager.java
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@@ -39,7 +39,7 @@ public class EntityVillager extends EntityVillagerAbstract implements Reputation
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@Nullable
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private EntityHuman bv;
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private byte bx;
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- private final Reputation by;
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+ private Reputation by; private void resetReputation() { this.by = new Reputation(); } // Paper - OBFHELPER
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private long bz;
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private long bA;
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private int bB;
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@@ -923,6 +923,7 @@ public class EntityVillager extends EntityVillagerAbstract implements Reputation
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@Override
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public void a(ReputationEvent reputationevent, Entity entity) {
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if (reputationevent == ReputationEvent.a) {
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+ if (world.paperConfig.fixCuringZombieVillagerDiscountExploit) this.resetReputation(); // Paper - fix MC-181190
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this.by.a(entity.getUniqueID(), ReputationType.MAJOR_POSITIVE, 20);
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this.by.a(entity.getUniqueID(), ReputationType.MINOR_POSITIVE, 25);
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} else if (reputationevent == ReputationEvent.e) {
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