mirror of
https://github.com/PaperMC/Paper.git
synced 2024-12-28 20:07:41 +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.
43 lines
2.5 KiB
Diff
43 lines
2.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Yannick Lamprecht <yannicklamprecht@live.de>
|
|
Date: Wed, 30 Mar 2022 18:16:52 +0200
|
|
Subject: [PATCH] Player Entity Tracking Events
|
|
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
|
|
index 61fda6927f060cdf8bcfddaaa08bbbe2c514c630..dca6087dc4e1c177c3dfdae01f140cf80c179803 100644
|
|
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
|
|
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
|
|
@@ -1533,7 +1533,11 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
|
|
// CraftBukkit end
|
|
if (flag) {
|
|
if (this.seenBy.add(player.connection)) {
|
|
+ // Paper start - entity tracking events
|
|
+ if (io.papermc.paper.event.player.PlayerTrackEntityEvent.getHandlerList().getRegisteredListeners().length == 0 || new io.papermc.paper.event.player.PlayerTrackEntityEvent(player.getBukkitEntity(), this.entity.getBukkitEntity()).callEvent()) {
|
|
this.serverEntity.addPairing(player);
|
|
+ }
|
|
+ // Paper end - entity tracking events
|
|
}
|
|
} else if (this.seenBy.remove(player.connection)) {
|
|
this.serverEntity.removePairing(player);
|
|
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
|
|
index 1aa3396a33e24f3849725769fe58b57374ee7611..3c7175b015262ed354d9a9ae237aff6d34cec713 100644
|
|
--- a/src/main/java/net/minecraft/world/entity/Entity.java
|
|
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
|
|
@@ -3868,7 +3868,14 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
|
|
|
|
public void startSeenByPlayer(ServerPlayer player) {}
|
|
|
|
- public void stopSeenByPlayer(ServerPlayer player) {}
|
|
+ // Paper start - entity tracking events
|
|
+ public void stopSeenByPlayer(ServerPlayer player) {
|
|
+ // Since this event cannot be cancelled, we should call it here to catch all "un-tracks"
|
|
+ if (io.papermc.paper.event.player.PlayerUntrackEntityEvent.getHandlerList().getRegisteredListeners().length > 0) {
|
|
+ new io.papermc.paper.event.player.PlayerUntrackEntityEvent(player.getBukkitEntity(), this.getBukkitEntity()).callEvent();
|
|
+ }
|
|
+ }
|
|
+ // Paper end - entity tracking events
|
|
|
|
public float rotate(Rotation rotation) {
|
|
float f = Mth.wrapDegrees(this.getYRot());
|