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c5a10665b8
Spigot still maintains some partial implementation of "tick skipping", a practice in which the MinecraftServer.currentTick field is updated not by an increment of one per actual tick, but instead set to System.currentTimeMillis() / 50. This behaviour means that the tracked tick may "skip" a tick value in case a previous tick took more than the expected 50ms. To compensate for this in important paths, spigot/craftbukkit implements "wall-time". Instead of incrementing/decrementing ticks on block entities/entities by one for each call to their tick() method, they instead increment/decrement important values, like an ItemEntity's age or pickupDelay, by the difference of `currentTick - lastTick`, where `lastTick` is the value of `currentTick` during the last tick() call. These "fixes" however do not play nicely with minecraft's simulation distance as entities/block entities implementing the above behaviour would "catch up" their values when moving from a non-ticking chunk to a ticking one as their `lastTick` value remains stuck on the last tick in a ticking chunk and hence lead to a large "catch up" once ticked again. Paper completely removes the "tick skipping" behaviour (See patch "Further-improve-server-tick-loop"), making the above precautions completely unnecessary, which also rids paper of the previous described incompatibility with non-ticking chunks.
44 lines
2.1 KiB
Diff
44 lines
2.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: BillyGalbreath <blake.galbreath@gmail.com>
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Date: Wed, 20 Jan 2021 14:23:37 -0600
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Subject: [PATCH] Allow adding items to BlockDropItemEvent
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diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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index c48a9026c4db2005b67c5f70e9e1fa95b7820bc0..36adcab02e97cae2d087bae74cc4ceaf3052a9f8 100644
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--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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@@ -462,13 +462,30 @@ public class CraftEventFactory {
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}
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public static void handleBlockDropItemEvent(Block block, BlockState state, ServerPlayer player, List<ItemEntity> items) {
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- BlockDropItemEvent event = new BlockDropItemEvent(block, state, player.getBukkitEntity(), Lists.transform(items, (item) -> (org.bukkit.entity.Item) item.getBukkitEntity()));
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+ // Paper start - Allow adding items to BlockDropItemEvent
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+ List<Item> list = new ArrayList<>();
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+ for (ItemEntity item : items) {
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+ list.add((Item) item.getBukkitEntity());
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+ }
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+ BlockDropItemEvent event = new BlockDropItemEvent(block, state, player.getBukkitEntity(), list);
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+ // Paper end - Allow adding items to BlockDropItemEvent
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Bukkit.getPluginManager().callEvent(event);
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if (!event.isCancelled()) {
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- for (ItemEntity item : items) {
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- item.level().addFreshEntity(item);
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+ // Paper start - Allow adding items to BlockDropItemEvent
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+ for (Item bukkit : list) {
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+ if (!bukkit.isValid()) {
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+ Entity item = ((org.bukkit.craftbukkit.entity.CraftItem) bukkit).getHandle();
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+ item.level().addFreshEntity(item);
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+ }
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+ }
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+ } else {
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+ for (Item bukkit : list) {
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+ if (bukkit.isValid()) {
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+ bukkit.remove();
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+ }
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}
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+ // Paper end - Allow adding items to BlockDropItemEvent
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}
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}
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