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01a13871de
Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
47 lines
3.5 KiB
Diff
47 lines
3.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Toon Schoenmakers <nighteyes1993@gmail.com>
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Date: Fri, 23 Oct 2020 15:01:44 +0200
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Subject: [PATCH] Avoid error bubbling up when item stack is empty in fishing
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loot
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This can realistically only happen if there's custom loot active on fishing
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which can return 0 items. This would disconnect the player who's fishing.
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diff --git a/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java b/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java
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index 11ac510ad4095438d4904d521bfb18aa5f743faf..f5886a88fd98ede5e85a91eccccb05ac33eb40e2 100644
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--- a/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java
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+++ b/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java
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@@ -494,9 +494,15 @@ public class FishingHook extends Projectile {
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while (iterator.hasNext()) {
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ItemStack itemstack1 = (ItemStack) iterator.next();
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- ItemEntity entityitem = new ItemEntity(this.level, this.getX(), this.getY(), this.getZ(), itemstack1);
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+ // Paper start, new EntityItem would throw if for whatever reason (mostly shitty datapacks) the itemstack1 turns out to be empty
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+ // if the item stack is empty we instead just have our entityitem as null
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+ ItemEntity entityitem = null;
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+ if (!itemstack1.isEmpty()) {
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+ entityitem = new ItemEntity(this.level, this.getX(), this.getY(), this.getZ(), itemstack1);
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+ }
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+ // Paper end
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// CraftBukkit start
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- PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) entityhuman.getBukkitEntity(), entityitem.getBukkitEntity(), (FishHook) this.getBukkitEntity(), PlayerFishEvent.State.CAUGHT_FISH);
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+ PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) entityhuman.getBukkitEntity(), entityitem != null ? entityitem.getBukkitEntity() : null, (FishHook) this.getBukkitEntity(), PlayerFishEvent.State.CAUGHT_FISH); // Paper - entityitem may be null
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playerFishEvent.setExpToDrop(this.random.nextInt(6) + 1);
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this.level.getCraftServer().getPluginManager().callEvent(playerFishEvent);
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@@ -509,8 +515,12 @@ public class FishingHook extends Projectile {
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double d2 = entityhuman.getZ() - this.getZ();
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double d3 = 0.1D;
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- entityitem.setDeltaMovement(d0 * 0.1D, d1 * 0.1D + Math.sqrt(Math.sqrt(d0 * d0 + d1 * d1 + d2 * d2)) * 0.08D, d2 * 0.1D);
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- this.level.addFreshEntity(entityitem);
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+ // Paper start, entity item can be null, so we need to check against this
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+ if (entityitem != null) {
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+ entityitem.setDeltaMovement(d0 * 0.1D, d1 * 0.1D + Math.sqrt(Math.sqrt(d0 * d0 + d1 * d1 + d2 * d2)) * 0.08D, d2 * 0.1D);
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+ this.level.addFreshEntity(entityitem);
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+ }
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+ // Paper end
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// CraftBukkit start - this.random.nextInt(6) + 1 -> playerFishEvent.getExpToDrop()
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if (playerFishEvent.getExpToDrop() > 0) {
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entityhuman.level.addFreshEntity(new ExperienceOrb(entityhuman.level, entityhuman.getX(), entityhuman.getY() + 0.5D, entityhuman.getZ() + 0.5D, playerFishEvent.getExpToDrop(), org.bukkit.entity.ExperienceOrb.SpawnReason.FISHING, this.getPlayerOwner(), this)); // Paper
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