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Leaf/leaf-server/minecraft-patches/features/0198-Sepals-Rearrange-the-attackable-conditions.patch
2025-06-11 05:20:38 +08:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: cao-awa <cao.awa.www@gmail.com>
Date: Fri, 23 Aug 2024 00:23:32 +0800
Subject: [PATCH] Sepals: Rearrange the attackable conditions
Original license: GPLv3
Original project: https://github.com/cao-awa/Sepals
Rearrange the attackable conditions
let less costs predicate running first
reduce the probability of high-costs calculating
-- The complaints --
Mojang's attackable predicate is:
!entity.getBrain().hasMemoryModule(MemoryModuleType.HAS_HUNTING_COOLDOWN)
&& Sensor.testAttackableTargetPredicate(entity, target)
&& FrogEntity.isValidFrogFood(target)
&& !this.isTargetUnreachable(entity, target)
&& target.isInRange(entity, 10.0)
in this case, 'Sensor#testAttackableTargetPredicate' has calls 'TargetPredicate#test'
that cause a very lots raycast calculate when entities too much in the area
but... minecraft's raycast is absolutely bad, very slow
the 'TargetPredicate#test' in this case (800 frogs) has make 9.8ms costs in once game tick
among them, 'BlockView.raycast' contributed 7.3ms
then i make it be:
FrogEntity.isValidFrogFood(target) &&
entity.getBrain().hasMemoryModule(MemoryModuleType.HAS_HUNTING_COOLDOWN) &&
target.isInRange(entity, 10.0) &&
Sensor.testAttackableTargetPredicate(entity, target) &&
isTargetUnreachable(entity, target);
the 'isValidFrogFood' is simple conditions, check the entity's tag has in 'frog_food'
and a extra check when entity is slime then skip it when it size not 1
the 'isInRange' and 'hasMemoryModule' also simple, it only a few math calculates
Test Result:
800 frogs cramming in a 7x7 space:
| Environment | time | Percent(Avg.) |
|-------------------------------------------------:|:------:|:-------------:|
| Vanilla (FrogAttackablesSensor#matches) | 10 ms | 100 % |
| With Lithium (FrogAttackablesSensor#matches) | 5.7 ms | 57 % |
| With Sepals (SepalsFrogBrain#attackable) | 0.1 ms | 1 % |
| With Sepals+Lithium (SepalsFrogBrain#attackable) | 0.1 ms | 1 % |
diff --git a/net/minecraft/world/entity/ai/sensing/FrogAttackablesSensor.java b/net/minecraft/world/entity/ai/sensing/FrogAttackablesSensor.java
index d163a363273b52b3b3f0b5a74ac4d4ab37d24bb7..e88479ba1ebeff67a93baad4f6f8c83119ff5ff7 100644
--- a/net/minecraft/world/entity/ai/sensing/FrogAttackablesSensor.java
+++ b/net/minecraft/world/entity/ai/sensing/FrogAttackablesSensor.java
@@ -13,11 +13,11 @@ public class FrogAttackablesSensor extends NearestVisibleLivingEntitySensor {
@Override
protected boolean isMatchingEntity(ServerLevel level, LivingEntity entity, LivingEntity target) {
- return !entity.getBrain().hasMemoryValue(MemoryModuleType.HAS_HUNTING_COOLDOWN)
+ return Frog.canEat(target)
+ && !entity.getBrain().hasMemoryValue(MemoryModuleType.HAS_HUNTING_COOLDOWN)
+ && target.closerThan(entity, 10.0)
&& Sensor.isEntityAttackable(level, entity, target)
- && Frog.canEat(target)
- && !this.isUnreachableAttackTarget(entity, target)
- && target.closerThan(entity, 10.0);
+ && !this.isUnreachableAttackTarget(entity, target); // Sepals - Rearrange the attackable conditions
}
private boolean isUnreachableAttackTarget(LivingEntity attacker, LivingEntity target) {