Paper/patches/server/0452-API-to-get-Material-from-Boats-and-Minecarts.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

63 lines
2.7 KiB
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] 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 f332bd4e6f663147c9ef6ce03d926feb74b55e93..d161cbf9c83cd78593864850b98f688da2c85aa5 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftBoat.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftBoat.java
@@ -79,6 +79,13 @@ 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 ee010d53f8c671d17d68f3f43dca9978e23ac8ab..8920af5a0dfe737c1f38d906b53e6a278456d2aa 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) this.entity;