PaperMC/patches/server/0534-Implement-API-to-get-Material-from-Boats-and-Minecar.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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Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Madeline Miller <mnmiller1@me.com>
Date: Thu, 31 Dec 2020 12:48:19 +1000
Subject: [PATCH] Implement API to get Material from Boats and Minecarts
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftBoat.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftBoat.java
index 5871cd149fe07e97c5d68ffd83dae4d3fc6bcf03..f2896aa6fa5a5282b4be106320c0dad9dd6036c5 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftBoat.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftBoat.java
@@ -80,6 +80,13 @@ public class CraftBoat extends CraftVehicle implements Boat {
this.getHandle().landBoats = workOnLand;
}
+ // Paper start
+ @Override
+ public org.bukkit.Material getBoatMaterial() {
+ return org.bukkit.craftbukkit.util.CraftMagicNumbers.getMaterial(this.getHandle().getDropItem());
+ }
+ // Paper end
+
@Override
public Status getStatus() {
return CraftBoat.boatStatusFromNms(this.getHandle().status);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecart.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecart.java
index 053112d7411caa6f439bd344e74aff8c844d93ac..067fcc1f44d59dd675a9cc5485234c87366ffe10 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecart.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecart.java
@@ -1,8 +1,10 @@
package org.bukkit.craftbukkit.entity;
import net.minecraft.world.entity.vehicle.AbstractMinecart;
+import net.minecraft.world.item.Items; // Paper
import net.minecraft.world.level.block.Blocks;
import net.minecraft.world.level.block.state.BlockState;
+import org.bukkit.Material; // Paper
import org.bukkit.block.data.BlockData;
import org.bukkit.craftbukkit.CraftServer;
import org.bukkit.craftbukkit.block.data.CraftBlockData;
@@ -68,6 +70,22 @@ public abstract class CraftMinecart extends CraftVehicle implements Minecart {
this.getHandle().setDerailedVelocityMod(derailed);
}
+ // Paper start
+ @Override
+ public Material getMinecartMaterial() {
+ net.minecraft.world.item.Item minecartItem = switch (getHandle().getMinecartType()) {
+ case CHEST -> Items.CHEST_MINECART;
+ case FURNACE -> Items.FURNACE_MINECART;
+ case TNT -> Items.TNT_MINECART;
+ case HOPPER -> Items.HOPPER_MINECART;
+ case COMMAND_BLOCK -> Items.COMMAND_BLOCK_MINECART;
+ case RIDEABLE, SPAWNER -> Items.MINECART;
+ };
+
+ return CraftMagicNumbers.getMaterial(minecartItem);
+ }
+ // Paper end
+
@Override
public AbstractMinecart getHandle() {
return (AbstractMinecart) entity;