mirror of
https://github.com/PaperMC/Paper.git
synced 2024-11-28 21:47:55 +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.
37 lines
1.6 KiB
Diff
37 lines
1.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
|
|
Date: Sat, 3 Oct 2020 21:39:16 -0500
|
|
Subject: [PATCH] Entity#isTicking
|
|
|
|
|
|
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
|
|
index c01a9305eb1c3e2ee5effab1e11980c2540d3c2a..6ab665efcac4c2543bab9d95472026e0ec8580c5 100644
|
|
--- a/src/main/java/net/minecraft/world/entity/Entity.java
|
|
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
|
|
@@ -4513,5 +4513,9 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
|
|
public static int nextEntityId() {
|
|
return ENTITY_COUNTER.incrementAndGet();
|
|
}
|
|
+
|
|
+ public boolean isTicking() {
|
|
+ return ((net.minecraft.server.level.ServerChunkCache) level.getChunkSource()).isPositionTicking(this);
|
|
+ }
|
|
// Paper end - Expose entity id counter
|
|
}
|
|
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
|
|
index 5f5788a502642463091fb76e98703aaec7a86836..98e8ad81b8c9c0636abe59f70ce891fe926a37fe 100644
|
|
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
|
|
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
|
|
@@ -1062,4 +1062,11 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
|
|
return getHandle().isInLava();
|
|
}
|
|
// Paper end - entity liquid API
|
|
+
|
|
+ // Paper start - isTicking API
|
|
+ @Override
|
|
+ public boolean isTicking() {
|
|
+ return getHandle().isTicking();
|
|
+ }
|
|
+ // Paper end - isTicking API
|
|
}
|