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36 lines
2.2 KiB
Diff
36 lines
2.2 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Lukasz Derlatka <toranktto@gmail.com>
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Date: Mon, 11 Nov 2019 16:08:13 +0100
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Subject: [PATCH] Fix AssertionError when player hand set to empty type
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Fixes an AssertionError when setting the player's item in hand to null or a new ItemStack of Air in PlayerInteractEvent
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Fixes GH-2718
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diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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index e45690b6197335ed1c07fa04c39b311b401724d7..2b79413bb8a592a7b7093e11d3a0cce895286c8f 100644
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--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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@@ -1706,6 +1706,10 @@ public class ServerGamePacketListenerImpl implements ServerGamePacketListener {
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this.player.getBukkitEntity().updateInventory(); // SPIGOT-2524
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return;
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}
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+ // Paper start
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+ itemstack = this.player.getItemInHand(enumhand);
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+ if (itemstack.isEmpty()) return;
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+ // Paper end
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InteractionResult enuminteractionresult = this.player.gameMode.useItem(this.player, worldserver, itemstack, enumhand);
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if (enuminteractionresult.shouldSwing()) {
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diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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index f8917123547615dd624e3e428ec1bf6450c7b7d8..b49d4772932a58852b3195f5f56ff93dbcabf766 100644
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--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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@@ -2153,6 +2153,7 @@ public abstract class LivingEntity extends Entity {
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return predicate.test(this.getMainHandItem().getItem()) || predicate.test(this.getOffhandItem().getItem());
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}
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+ public final ItemStack getItemInHand(InteractionHand enumhand) { return this.getItemInHand(enumhand); } // Paper - OBFHELPER
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public ItemStack getItemInHand(InteractionHand hand) {
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if (hand == InteractionHand.MAIN_HAND) {
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return this.getItemBySlot(EquipmentSlot.MAINHAND);
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