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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.
55 lines
3.8 KiB
Diff
55 lines
3.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: William Blake Galbreath <Blake.Galbreath@GMail.com>
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Date: Tue, 11 Feb 2020 21:56:48 -0600
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Subject: [PATCH] Add EntityMoveEvent
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index 39ce74bc3fbb282f56028273d53f980171bdb464..43b28b56c7949f95af5b7e99b04b93ed711d8880 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -1605,6 +1605,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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while (iterator.hasNext()) {
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ServerLevel worldserver = (ServerLevel) iterator.next();
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worldserver.hasPhysicsEvent = org.bukkit.event.block.BlockPhysicsEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper - BlockPhysicsEvent
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+ worldserver.hasEntityMoveEvent = io.papermc.paper.event.entity.EntityMoveEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper - Add EntityMoveEvent
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this.profiler.push(() -> {
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String s = String.valueOf(worldserver);
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index 373560fc82e491e6c8b755fecfe78d49a2fc3e2f..644341b8bc3079c6f092226acd11667f64bd55a1 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -228,6 +228,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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public final LevelStorageSource.LevelStorageAccess convertable;
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public final UUID uuid;
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public boolean hasPhysicsEvent = true; // Paper - BlockPhysicsEvent
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+ public boolean hasEntityMoveEvent; // Paper - Add EntityMoveEvent
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public LevelChunk getChunkIfLoaded(int x, int z) {
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return this.chunkSource.getChunk(x, z, false);
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diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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index d94c3e86885c5a8ba636988d29f98b496e13b627..a89c6ba4140f15e7f68f0df5cf64a176d350123b 100644
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--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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@@ -3510,6 +3510,20 @@ public abstract class LivingEntity extends Entity implements Attackable {
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this.pushEntities();
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this.level().getProfiler().pop();
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+ // Paper start - Add EntityMoveEvent
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+ if (((ServerLevel) this.level()).hasEntityMoveEvent && !(this instanceof net.minecraft.world.entity.player.Player)) {
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+ if (this.xo != this.getX() || this.yo != this.getY() || this.zo != this.getZ() || this.yRotO != this.getYRot() || this.xRotO != this.getXRot()) {
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+ Location from = new Location(this.level().getWorld(), this.xo, this.yo, this.zo, this.yRotO, this.xRotO);
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+ Location to = new Location(this.level().getWorld(), this.getX(), this.getY(), this.getZ(), this.getYRot(), this.getXRot());
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+ io.papermc.paper.event.entity.EntityMoveEvent event = new io.papermc.paper.event.entity.EntityMoveEvent(this.getBukkitLivingEntity(), from, to.clone());
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+ if (!event.callEvent()) {
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+ this.absMoveTo(from.getX(), from.getY(), from.getZ(), from.getYaw(), from.getPitch());
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+ } else if (!to.equals(event.getTo())) {
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+ this.absMoveTo(event.getTo().getX(), event.getTo().getY(), event.getTo().getZ(), event.getTo().getYaw(), event.getTo().getPitch());
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+ }
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+ }
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+ }
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+ // Paper end - Add EntityMoveEvent
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if (!this.level().isClientSide && this.isSensitiveToWater() && this.isInWaterRainOrBubble()) {
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this.hurt(this.damageSources().drown(), 1.0F);
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}
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