PaperMC/patches/server/0462-Add-world-settings-for-mobs-picking-up-loot.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

32 lines
2.4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 28 Nov 2020 18:43:52 -0800
Subject: [PATCH] Add world settings for mobs picking up loot
diff --git a/src/main/java/net/minecraft/world/entity/monster/AbstractSkeleton.java b/src/main/java/net/minecraft/world/entity/monster/AbstractSkeleton.java
index aec440d32eb97fa8ce738b98dae1cdc346e8a59b..a5593ac33878efc970c1bdd6f636438d160e9d50 100644
--- a/src/main/java/net/minecraft/world/entity/monster/AbstractSkeleton.java
+++ b/src/main/java/net/minecraft/world/entity/monster/AbstractSkeleton.java
@@ -148,7 +148,7 @@ public abstract class AbstractSkeleton extends Monster implements RangedAttackMo
this.populateDefaultEquipmentSlots(randomsource, difficulty);
this.populateDefaultEquipmentEnchantments(world, randomsource, difficulty);
this.reassessWeaponGoal();
- this.setCanPickUpLoot(randomsource.nextFloat() < 0.55F * difficulty.getSpecialMultiplier());
+ this.setCanPickUpLoot(this.level().paperConfig().entities.behavior.mobsCanAlwaysPickUpLoot.skeletons || randomsource.nextFloat() < 0.55F * difficulty.getSpecialMultiplier()); // Paper - Add world settings for mobs picking up loot
if (this.getItemBySlot(EquipmentSlot.HEAD).isEmpty()) {
LocalDate localdate = LocalDate.now();
int i = localdate.get(ChronoField.DAY_OF_MONTH);
diff --git a/src/main/java/net/minecraft/world/entity/monster/Zombie.java b/src/main/java/net/minecraft/world/entity/monster/Zombie.java
index 78254df3e5fbcb0a90c2f9eb9c9343792238f685..5908f1646b542d61b5a2b23b284b1532e4b276c1 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Zombie.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Zombie.java
@@ -509,7 +509,7 @@ public class Zombie extends Monster {
Object object = super.finalizeSpawn(world, difficulty, spawnReason, entityData);
float f = difficulty.getSpecialMultiplier();
- this.setCanPickUpLoot(randomsource.nextFloat() < 0.55F * f);
+ this.setCanPickUpLoot(this.level().paperConfig().entities.behavior.mobsCanAlwaysPickUpLoot.zombies || randomsource.nextFloat() < 0.55F * f); // Paper - Add world settings for mobs picking up loot
if (object == null) {
object = new Zombie.ZombieGroupData(Zombie.getSpawnAsBabyOdds(randomsource), true);
}