Paper/patches/server/0745-Add-getDrops-to-BlockState.patch
Bjarne Koll c5a10665b8
Remove wall-time / unused skip tick protection (#11412)
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.
2024-09-19 16:36:07 +02:00

38 lines
1.8 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: MelnCat <melncatuwu@gmail.com>
Date: Fri, 12 Aug 2022 23:24:37 -0700
Subject: [PATCH] Add getDrops to BlockState
Originally added isPreferredTool to BlockData but
upstream added that.
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
index e96023b71845526383288917e8d7c5759a4c0e9b..fa63a6cfcfcc4eee4503a82d85333c139c8c8b2b 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
@@ -347,5 +347,24 @@ public class CraftBlockState implements BlockState {
public boolean isCollidable() {
return this.data.getBlock().hasCollision;
}
+
+ @Override
+ public java.util.Collection<org.bukkit.inventory.ItemStack> getDrops(org.bukkit.inventory.ItemStack item, org.bukkit.entity.Entity entity) {
+ this.requirePlaced();
+ net.minecraft.world.item.ItemStack nms = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(item);
+
+ // Modelled off EntityHuman#hasBlock
+ if (item == null || !data.requiresCorrectToolForDrops() || nms.isCorrectToolForDrops(data)) {
+ return net.minecraft.world.level.block.Block.getDrops(
+ data,
+ world.getHandle(),
+ position,
+ world.getHandle().getBlockEntity(position), entity == null ? null :
+ ((org.bukkit.craftbukkit.entity.CraftEntity) entity).getHandle(), nms
+ ).stream().map(org.bukkit.craftbukkit.inventory.CraftItemStack::asBukkitCopy).toList();
+ } else {
+ return java.util.Collections.emptyList();
+ }
+ }
// Paper end
}