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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Mon, 4 Jul 2022 21:45:36 -0700
Subject: [PATCH] EntityPickupItemEvent fixes
Fixes double firing of the event in PiglinAi
Fixes cancelling the event for piglins still triggering the
advancement trigger
Fires the event when a Raider tries to pick up a raid banner
to become raid leader.
diff --git a/src/main/java/net/minecraft/world/entity/monster/piglin/Piglin.java b/src/main/java/net/minecraft/world/entity/monster/piglin/Piglin.java
index 5e64a6b94a510ed618a2542ad03e406a181b63d4..2121d2a2e1aa1d0f0390cc515317096431f6dcb0 100644
--- a/src/main/java/net/minecraft/world/entity/monster/piglin/Piglin.java
+++ b/src/main/java/net/minecraft/world/entity/monster/piglin/Piglin.java
@@ -438,7 +438,7 @@ public class Piglin extends AbstractPiglin implements CrossbowAttackMob, Invento
@Override
protected void pickUpItem(ServerLevel world, ItemEntity itemEntity) {
- this.onItemPickup(itemEntity);
+ // this.onItemPickup(itemEntity); // Paper - EntityPickupItemEvent fixes; call in PiglinAi#pickUpItem after EntityPickupItemEvent is fired
PiglinAi.pickUpItem(world, this, itemEntity);
}
diff --git a/src/main/java/net/minecraft/world/entity/monster/piglin/PiglinAi.java b/src/main/java/net/minecraft/world/entity/monster/piglin/PiglinAi.java
index 5c26beef2d3f3d4afa51950ddeb7089989218462..e283b1296c1e831376bfe9491cbf02ed4b3fffe4 100644
--- a/src/main/java/net/minecraft/world/entity/monster/piglin/PiglinAi.java
+++ b/src/main/java/net/minecraft/world/entity/monster/piglin/PiglinAi.java
@@ -244,11 +244,16 @@ public class PiglinAi {
ItemStack itemstack;
// CraftBukkit start
- if (itemEntity.getItem().is(Items.GOLD_NUGGET) && !org.bukkit.craftbukkit.event.CraftEventFactory.callEntityPickupItemEvent(piglin, itemEntity, 0, false).isCancelled()) {
+ // Paper start - EntityPickupItemEvent fixes; fix event firing twice
+ if (itemEntity.getItem().is(Items.GOLD_NUGGET)/* && !org.bukkit.craftbukkit.event.CraftEventFactory.callEntityPickupItemEvent(piglin, itemEntity, 0, false).isCancelled()*/) { // Paper
+ if (!org.bukkit.craftbukkit.event.CraftEventFactory.callEntityPickupItemEvent(piglin, itemEntity, 0, false).isCancelled()) return;
+ piglin.onItemPickup(itemEntity); // Paper - moved from Piglin#pickUpItem - call prior to item entity modification
+ // Paper end
piglin.take(itemEntity, itemEntity.getItem().getCount());
itemstack = itemEntity.getItem();
itemEntity.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
} else if (!org.bukkit.craftbukkit.event.CraftEventFactory.callEntityPickupItemEvent(piglin, itemEntity, itemEntity.getItem().getCount() - 1, false).isCancelled()) {
+ piglin.onItemPickup(itemEntity); // Paper - EntityPickupItemEvent fixes; moved from Piglin#pickUpItem - call prior to item entity modification
piglin.take(itemEntity, 1);
itemstack = PiglinAi.removeOneItemFromItemEntity(itemEntity);
} else {
@@ -263,7 +268,7 @@ public class PiglinAi {
} else if (PiglinAi.isFood(itemstack) && !PiglinAi.hasEatenRecently(piglin)) {
PiglinAi.eat(piglin);
} else {
- boolean flag = !piglin.equipItemIfPossible(world, itemstack, itemEntity).equals(ItemStack.EMPTY); // CraftBukkit
+ boolean flag = !piglin.equipItemIfPossible(world, itemstack, null).equals(ItemStack.EMPTY); // CraftBukkit // Paper - pass null item entity to prevent duplicate pickup item event call - called above.
if (!flag) {
PiglinAi.putInInventory(piglin, itemstack);
diff --git a/src/main/java/net/minecraft/world/entity/raid/Raider.java b/src/main/java/net/minecraft/world/entity/raid/Raider.java
index 6a7d9b59ff4aa2962a88ae8688c06bc67d70dfda..cee1e4db2312efb4843c4b6dc18f4af10b91d304 100644
--- a/src/main/java/net/minecraft/world/entity/raid/Raider.java
+++ b/src/main/java/net/minecraft/world/entity/raid/Raider.java
@@ -228,6 +228,11 @@ public abstract class Raider extends PatrollingMonster {
boolean flag = this.hasActiveRaid() && this.getCurrentRaid().getLeader(this.getWave()) != null;
if (this.hasActiveRaid() && !flag && ItemStack.matches(itemstack, Raid.getOminousBannerInstance(this.registryAccess().lookupOrThrow(Registries.BANNER_PATTERN)))) {
+ // Paper start - EntityPickupItemEvent fixes
+ if (org.bukkit.craftbukkit.event.CraftEventFactory.callEntityPickupItemEvent(this, itemEntity, 0, false).isCancelled()) {
+ return;
+ }
+ // Paper end - EntityPickupItemEvent fixes
EquipmentSlot enumitemslot = EquipmentSlot.HEAD;
ItemStack itemstack1 = this.getItemBySlot(enumitemslot);
double d0 = (double) this.getEquipmentDropChance(enumitemslot);
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