PaperMC/patches/server/0587-Add-ItemFactory-getSpawnEgg-API.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

58 lines
3.7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Thu, 14 Oct 2021 12:09:39 -0500
Subject: [PATCH] Add ItemFactory#getSpawnEgg API
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemFactory.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemFactory.java
index eabb8b42b890224dd19b879ff276e9908674310d..803a19063c03627dbea79cb1c395ae35aaef2834 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemFactory.java
@@ -9,6 +9,7 @@ import net.minecraft.core.HolderSet;
import net.minecraft.core.RegistryAccess;
import net.minecraft.core.component.DataComponentPatch;
import net.minecraft.core.registries.Registries;
+import net.minecraft.resources.ResourceLocation;
import net.minecraft.server.MinecraftServer;
import net.minecraft.tags.EnchantmentTags;
import net.minecraft.util.RandomSource;
@@ -286,4 +287,19 @@ public final class CraftItemFactory implements ItemFactory {
new net.md_5.bungee.api.chat.TextComponent(customName));
}
// Paper end - bungee hover events
+
+ // Paper start - old getSpawnEgg API
+ // @Override // used to override, upstream added conflicting method, is called via Commodore now
+ @Deprecated
+ public ItemStack getSpawnEgg0(org.bukkit.entity.EntityType type) {
+ if (type == null) {
+ return null;
+ }
+ String typeId = type.getKey().toString();
+ net.minecraft.resources.ResourceLocation typeKey = ResourceLocation.parse(typeId);
+ net.minecraft.world.entity.EntityType<?> nmsType = net.minecraft.core.registries.BuiltInRegistries.ENTITY_TYPE.get(typeKey);
+ net.minecraft.world.item.SpawnEggItem eggItem = net.minecraft.world.item.SpawnEggItem.byId(nmsType);
+ return eggItem == null ? null : new net.minecraft.world.item.ItemStack(eggItem).asBukkitMirror();
+ }
+ // Paper end - old getSpawnEgg API
}
diff --git a/src/main/java/org/bukkit/craftbukkit/util/Commodore.java b/src/main/java/org/bukkit/craftbukkit/util/Commodore.java
index 17d6a4cdd16d34f83e0752c3bdaee08288425a07..157fbe09ab22f3218d9d3f72e8c0a5a3d727eaeb 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/Commodore.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/Commodore.java
@@ -442,6 +442,15 @@ public class Commodore {
}
// Paper end
+ // Paper start - ItemFactory#getSpawnEgg (paper had original method that returned ItemStack, upstream added identical but returned Material)
+ if (owner.equals("org/bukkit/inventory/ItemFactory") && name.equals("getSpawnEgg") && desc.equals("(Lorg/bukkit/entity/EntityType;)Lorg/bukkit/inventory/ItemStack;")) {
+ super.visitInsn(Opcodes.SWAP); // has 1 param, this moves the owner instance to the top for the checkcast
+ super.visitTypeInsn(Opcodes.CHECKCAST, runtimeCbPkgPrefix() + "inventory/CraftItemFactory");
+ super.visitInsn(Opcodes.SWAP); // moves param back to the the top of stack
+ super.visitMethodInsn(Opcodes.INVOKEVIRTUAL, runtimeCbPkgPrefix() + "inventory/CraftItemFactory", "getSpawnEgg0", desc, false);
+ return;
+ }
+ // Paper end - ItemFactory#getSpawnEgg
if (modern) {
if (owner.equals("org/bukkit/Material") || (instantiatedMethodType != null && instantiatedMethodType.getDescriptor().startsWith("(Lorg/bukkit/Material;)"))) {
switch (name) {