mirror of
https://github.com/PaperMC/Paper.git
synced 2024-12-01 20:50:41 +01:00
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.
73 lines
4.8 KiB
Diff
73 lines
4.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: masmc05 <masmc05@gmail.com>
|
|
Date: Sun, 11 Aug 2024 03:01:52 +0300
|
|
Subject: [PATCH] Item serialization as json
|
|
|
|
|
|
diff --git a/src/main/java/net/minecraft/world/item/component/CustomData.java b/src/main/java/net/minecraft/world/item/component/CustomData.java
|
|
index 6b7245cf05ea4b6ce05462eb3164bce7f5d76a03..ac1914438307e8a7cc3a3b6352e88a0638f8a33b 100644
|
|
--- a/src/main/java/net/minecraft/world/item/component/CustomData.java
|
|
+++ b/src/main/java/net/minecraft/world/item/component/CustomData.java
|
|
@@ -28,7 +28,17 @@ import org.slf4j.Logger;
|
|
public final class CustomData {
|
|
private static final Logger LOGGER = LogUtils.getLogger();
|
|
public static final CustomData EMPTY = new CustomData(new CompoundTag());
|
|
- public static final Codec<CustomData> CODEC = Codec.withAlternative(CompoundTag.CODEC, TagParser.AS_CODEC)
|
|
+ // Paper start - Item serialization as json
|
|
+ public static ThreadLocal<Boolean> SERIALIZE_CUSTOM_AS_SNBT = ThreadLocal.withInitial(() -> false);
|
|
+ public static final Codec<CustomData> CODEC = Codec.either(CompoundTag.CODEC, TagParser.AS_CODEC)
|
|
+ .xmap(com.mojang.datafixers.util.Either::unwrap, data -> { // Both will be used for deserialization, but we decide which one to use for serialization
|
|
+ if (!SERIALIZE_CUSTOM_AS_SNBT.get()) {
|
|
+ return com.mojang.datafixers.util.Either.left(data); // First codec
|
|
+ } else {
|
|
+ return com.mojang.datafixers.util.Either.right(data); // Second codec
|
|
+ }
|
|
+ })
|
|
+ // Paper end - Item serialization as json
|
|
.xmap(CustomData::new, component -> component.tag);
|
|
public static final Codec<CustomData> CODEC_WITH_ID = CODEC.validate(
|
|
component -> component.getUnsafe().contains("id", 8) ? DataResult.success(component) : DataResult.error(() -> "Missing id for entity in: " + component)
|
|
diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
|
|
index 7d32c032b63b9c4674489b30c845fe2de8275808..f78744b6d6075f584d9a88612661854f3f04aed1 100644
|
|
--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
|
|
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
|
|
@@ -505,6 +505,39 @@ public final class CraftMagicNumbers implements UnsafeValues {
|
|
return CraftItemStack.asCraftMirror(net.minecraft.world.item.ItemStack.parse(MinecraftServer.getServer().registryAccess(), compound).orElseThrow());
|
|
}
|
|
|
|
+ @Override
|
|
+ public com.google.gson.JsonObject serializeItemAsJson(ItemStack itemStack) {
|
|
+ Preconditions.checkNotNull(itemStack, "Cannot serialize empty ItemStack");
|
|
+ Preconditions.checkArgument(!itemStack.isEmpty(), "Cannot serialize empty ItemStack");
|
|
+
|
|
+ net.minecraft.core.RegistryAccess.Frozen reg = net.minecraft.server.MinecraftServer.getServer().registryAccess();
|
|
+ com.mojang.serialization.DynamicOps<com.google.gson.JsonElement> ops = reg.createSerializationContext(com.mojang.serialization.JsonOps.INSTANCE);
|
|
+ com.google.gson.JsonObject item;
|
|
+ // Serialize as SNBT to preserve exact NBT types; vanilla codecs already can handle such deserialization.
|
|
+ net.minecraft.world.item.component.CustomData.SERIALIZE_CUSTOM_AS_SNBT.set(true);
|
|
+ try {
|
|
+ item = net.minecraft.world.item.ItemStack.CODEC.encodeStart(ops, CraftItemStack.unwrap(itemStack)).getOrThrow().getAsJsonObject();
|
|
+ } finally {
|
|
+ net.minecraft.world.item.component.CustomData.SERIALIZE_CUSTOM_AS_SNBT.set(false);
|
|
+ }
|
|
+ item.addProperty("DataVersion", this.getDataVersion());
|
|
+ return item;
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public ItemStack deserializeItemFromJson(com.google.gson.JsonObject data) throws IllegalArgumentException {
|
|
+ Preconditions.checkNotNull(data, "null cannot be deserialized");
|
|
+
|
|
+ final int dataVersion = data.get("DataVersion").getAsInt();
|
|
+ final int currentVersion = org.bukkit.craftbukkit.util.CraftMagicNumbers.INSTANCE.getDataVersion();
|
|
+ data = ca.spottedleaf.dataconverter.minecraft.MCDataConverter.convertJson(
|
|
+ ca.spottedleaf.dataconverter.minecraft.datatypes.MCTypeRegistry.ITEM_STACK,
|
|
+ data, false, dataVersion, currentVersion
|
|
+ );
|
|
+ com.mojang.serialization.DynamicOps<com.google.gson.JsonElement> ops = MinecraftServer.getServer().registryAccess().createSerializationContext(com.mojang.serialization.JsonOps.INSTANCE);
|
|
+ return CraftItemStack.asCraftMirror(net.minecraft.world.item.ItemStack.CODEC.parse(ops, data).getOrThrow(IllegalArgumentException::new));
|
|
+ }
|
|
+
|
|
@Override
|
|
public byte[] serializeEntity(org.bukkit.entity.Entity entity) {
|
|
Preconditions.checkNotNull(entity, "null cannot be serialized");
|