PaperMC/patches/server/0317-Add-option-to-nerf-pigmen-from-nether-portals.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

49 lines
2.9 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Fri, 7 Feb 2020 14:36:56 -0600
Subject: [PATCH] Add option to nerf pigmen from nether portals
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 9d56aff2766b684f0fb20e93d504de1a7a564b11..94242c19740ae6ab2c86e3949bab6cee631b938f 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -403,6 +403,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
public void inactiveTick() { }
// Spigot end
protected int numCollisions = 0; // Paper - Cap entity collisions
+ public boolean fromNetherPortal; // Paper - Add option to nerf pigmen from nether portals
public boolean spawnedViaMobSpawner; // Paper - Yes this name is similar to above, upstream took the better one
// Paper start - Entity origin API
@javax.annotation.Nullable
@@ -2282,6 +2283,9 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
if (spawnedViaMobSpawner) {
nbttagcompound.putBoolean("Paper.FromMobSpawner", true);
}
+ if (fromNetherPortal) {
+ nbttagcompound.putBoolean("Paper.FromNetherPortal", true);
+ }
// Paper end
return nbttagcompound;
} catch (Throwable throwable) {
@@ -2424,6 +2428,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
}
spawnedViaMobSpawner = nbt.getBoolean("Paper.FromMobSpawner"); // Restore entity's from mob spawner status
+ fromNetherPortal = nbt.getBoolean("Paper.FromNetherPortal");
if (nbt.contains("Paper.SpawnReason")) {
String spawnReasonName = nbt.getString("Paper.SpawnReason");
try {
diff --git a/src/main/java/net/minecraft/world/level/block/NetherPortalBlock.java b/src/main/java/net/minecraft/world/level/block/NetherPortalBlock.java
index 8072e67f7b2f5944670159d3de1b01090bd1019d..a4e1c878dc7677e8ccc7c568ab455e85513d86cb 100644
--- a/src/main/java/net/minecraft/world/level/block/NetherPortalBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/NetherPortalBlock.java
@@ -88,6 +88,8 @@ public class NetherPortalBlock extends Block implements Portal {
if (entity != null) {
entity.setPortalCooldown();
+ entity.fromNetherPortal = true; // Paper - Add option to nerf pigmen from nether portals
+ if (world.paperConfig().entities.behavior.nerfPigmenFromNetherPortals) ((net.minecraft.world.entity.Mob) entity).aware = false; // Paper - Add option to nerf pigmen from nether portals
}
}
}