Paper/patches/server/0450-Add-PrepareResultEvent.patch
Spottedleaf 01a13871de
Rewrite chunk system (#8177)
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.
2022-09-26 01:02:51 -07:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Fri, 3 Jul 2020 11:58:56 -0500
Subject: [PATCH] Add PrepareResultEvent
Adds a new event for all crafting stations that generate a result slot item
Anvil, Grindstone and Smithing now extend this event
diff --git a/src/main/java/net/minecraft/world/inventory/AnvilMenu.java b/src/main/java/net/minecraft/world/inventory/AnvilMenu.java
index eb22059fe008c3d3fc0364a7f85f91b4cca8b328..506d758efbf16da9467f120321d2359a8832e477 100644
--- a/src/main/java/net/minecraft/world/inventory/AnvilMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/AnvilMenu.java
@@ -316,6 +316,7 @@ public class AnvilMenu extends ItemCombinerMenu {
}
this.createResult();
+ org.bukkit.craftbukkit.event.CraftEventFactory.callPrepareResultEvent(this, RESULT_SLOT); // Paper
}
public int getCost() {
diff --git a/src/main/java/net/minecraft/world/inventory/CartographyTableMenu.java b/src/main/java/net/minecraft/world/inventory/CartographyTableMenu.java
index fc2b400c58ddbd7b012707c61d9a37363d351251..4f5593d387545545e30475d3edaa92a4306ba96b 100644
--- a/src/main/java/net/minecraft/world/inventory/CartographyTableMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/CartographyTableMenu.java
@@ -150,6 +150,7 @@ public class CartographyTableMenu extends AbstractContainerMenu {
this.setupResultSlot(itemstack, itemstack1, itemstack2);
}
+ org.bukkit.craftbukkit.event.CraftEventFactory.callPrepareResultEvent(this, RESULT_SLOT); // Paper
}
private void setupResultSlot(ItemStack map, ItemStack item, ItemStack oldResult) {
diff --git a/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java b/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java
index aa0ba9c7dcb0ee81c9081031c447eeab61d92a10..7a0c38c743ef02f5b9c052f88c2d6429a53b8286 100644
--- a/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java
@@ -159,6 +159,7 @@ public class GrindstoneMenu extends AbstractContainerMenu {
super.slotsChanged(inventory);
if (inventory == this.repairSlots) {
this.createResult();
+ org.bukkit.craftbukkit.event.CraftEventFactory.callPrepareResultEvent(this, RESULT_SLOT); // Paper
}
}
diff --git a/src/main/java/net/minecraft/world/inventory/ItemCombinerMenu.java b/src/main/java/net/minecraft/world/inventory/ItemCombinerMenu.java
index f5e52220abc5c678c090b32d83eb9644fa91ce9d..35575434f3c90f1bd23df6584ee8a5a991f93f9f 100644
--- a/src/main/java/net/minecraft/world/inventory/ItemCombinerMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/ItemCombinerMenu.java
@@ -78,6 +78,7 @@ public abstract class ItemCombinerMenu extends AbstractContainerMenu {
super.slotsChanged(inventory);
if (inventory == this.inputSlots) {
this.createResult();
+ org.bukkit.craftbukkit.event.CraftEventFactory.callPrepareResultEvent(this, RESULT_SLOT); // Paper
}
}
diff --git a/src/main/java/net/minecraft/world/inventory/LoomMenu.java b/src/main/java/net/minecraft/world/inventory/LoomMenu.java
index d028ad0ab0e800b0fd93362d21942dff392f24af..942b4cc710bede4c942d269dcfc14ae105ab848d 100644
--- a/src/main/java/net/minecraft/world/inventory/LoomMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/LoomMenu.java
@@ -248,7 +248,8 @@ public class LoomMenu extends AbstractContainerMenu {
this.resultSlot.set(ItemStack.EMPTY);
}
- this.broadcastChanges();
+ // this.broadcastChanges(); // Paper - done below
+ org.bukkit.craftbukkit.event.CraftEventFactory.callPrepareResultEvent(this, 3); // Paper
} else {
this.resultSlot.set(ItemStack.EMPTY);
this.selectablePatterns = List.of();
diff --git a/src/main/java/net/minecraft/world/inventory/SmithingMenu.java b/src/main/java/net/minecraft/world/inventory/SmithingMenu.java
index 92dd2ea23185bba311e184b2ac9744a423c102ea..71bb09e3d31f098503d0e1bdf073b60f07d76ed0 100644
--- a/src/main/java/net/minecraft/world/inventory/SmithingMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/SmithingMenu.java
@@ -76,6 +76,7 @@ public class SmithingMenu extends ItemCombinerMenu {
// CraftBukkit end
}
+ org.bukkit.craftbukkit.event.CraftEventFactory.callPrepareResultEvent(this, RESULT_SLOT); // Paper
}
@Override
diff --git a/src/main/java/net/minecraft/world/inventory/StonecutterMenu.java b/src/main/java/net/minecraft/world/inventory/StonecutterMenu.java
index cdebd0cdf6eb901464cf4c16089b10ea0147b54d..b47dc7671fab2117b989d647d7e8e36d12af5f76 100644
--- a/src/main/java/net/minecraft/world/inventory/StonecutterMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/StonecutterMenu.java
@@ -176,6 +176,7 @@ public class StonecutterMenu extends AbstractContainerMenu {
this.setupRecipeList(inventory, itemstack);
}
+ org.bukkit.craftbukkit.event.CraftEventFactory.callPrepareResultEvent(this, RESULT_SLOT); // Paper
}
private void setupRecipeList(Container input, ItemStack stack) {
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 9b94df9940040f51fdcc1af5c7da96117af9017e..c2eefe215f47e36cc2b8476750ae00ec88f826a6 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -1594,19 +1594,44 @@ public class CraftEventFactory {
return event;
}
- public static PrepareAnvilEvent callPrepareAnvilEvent(InventoryView view, ItemStack item) {
- PrepareAnvilEvent event = new PrepareAnvilEvent(view, CraftItemStack.asCraftMirror(item).clone());
- event.getView().getPlayer().getServer().getPluginManager().callEvent(event);
+ // Paper start - disable this method, handled below
+ public static void callPrepareAnvilEvent(InventoryView view, ItemStack item) { // Paper - verify nothing uses return - handled below in PrepareResult
+ PrepareAnvilEvent event = new PrepareAnvilEvent(view, CraftItemStack.asCraftMirror(item)); // Paper - remove clone
+ //event.getView().getPlayer().getServer().getPluginManager().callEvent(event); // disable event
event.getInventory().setItem(2, event.getResult());
- return event;
+ //return event; // Paper
}
+ // Paper end
- public static PrepareSmithingEvent callPrepareSmithingEvent(InventoryView view, ItemStack item) {
- PrepareSmithingEvent event = new PrepareSmithingEvent(view, CraftItemStack.asCraftMirror(item).clone());
- event.getView().getPlayer().getServer().getPluginManager().callEvent(event);
+ // Paper start - disable this method, handled in callPrepareResultEvent
+ public static void callPrepareSmithingEvent(InventoryView view, ItemStack item) { // Paper - verify nothing uses return - handled below in PrepareResult
+ PrepareSmithingEvent event = new PrepareSmithingEvent(view, CraftItemStack.asCraftMirror(item)); // Paper - remove clone
+ //event.getView().getPlayer().getServer().getPluginManager().callEvent(event); // Paper - disable event
event.getInventory().setItem(2, event.getResult());
- return event;
+ //return event; // Paper
}
+ // Paper end
+
+ // Paper start - support specific overrides for prepare result
+ public static void callPrepareResultEvent(AbstractContainerMenu container, int resultSlot) {
+ com.destroystokyo.paper.event.inventory.PrepareResultEvent event;
+ InventoryView view = container.getBukkitView();
+ org.bukkit.inventory.ItemStack origItem = view.getTopInventory().getItem(resultSlot);
+ CraftItemStack result = origItem != null ? CraftItemStack.asCraftCopy(origItem) : null;
+ if (view.getTopInventory() instanceof org.bukkit.inventory.AnvilInventory) {
+ event = new PrepareAnvilEvent(view, result);
+ } else if (view.getTopInventory() instanceof org.bukkit.inventory.GrindstoneInventory) {
+ event = new com.destroystokyo.paper.event.inventory.PrepareGrindstoneEvent(view, result);
+ } else if (view.getTopInventory() instanceof org.bukkit.inventory.SmithingInventory) {
+ event = new PrepareSmithingEvent(view, result);
+ } else {
+ event = new com.destroystokyo.paper.event.inventory.PrepareResultEvent(view, result);
+ }
+ event.callEvent();
+ event.getInventory().setItem(resultSlot, event.getResult());
+ container.broadcastChanges();;
+ }
+ // Paper end
/**
* Mob spawner event.