From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Telesphoreo <me@telesphoreo.me>
Date: Wed, 8 May 2024 12:46:29 -0500
Subject: [PATCH] Fixes creative-killing potion effects and certain potion
 effect overflows


diff --git a/src/main/java/net/minecraft/world/effect/HealOrHarmMobEffect.java b/src/main/java/net/minecraft/world/effect/HealOrHarmMobEffect.java
index b95afa9f6b7cf6c522ff5ec278adec7a9a851e9a..3f65f24936cdf3379e39bab3cd8bd46aacd95518 100644
--- a/src/main/java/net/minecraft/world/effect/HealOrHarmMobEffect.java
+++ b/src/main/java/net/minecraft/world/effect/HealOrHarmMobEffect.java
@@ -15,6 +15,10 @@ class HealOrHarmMobEffect extends InstantenousMobEffect {
 
     @Override
     public boolean applyEffectTick(LivingEntity entity, int amplifier) {
+        // Scissors start - Don't apply any healing/harming effects for Creative/Invulnerable players and cap the amplifier for those who aren't.
+        if (entity instanceof net.minecraft.world.entity.player.Player player && (player.isCreative() || player.isInvulnerable())) return false;
+        amplifier = Math.min(Math.abs(amplifier), 124);
+        // Scissors end
         if (this.isHarm == entity.isInvertedHealAndHarm()) {
             entity.heal((float) Math.max(4 << amplifier, 0), org.bukkit.event.entity.EntityRegainHealthEvent.RegainReason.MAGIC); // CraftBukkit
         } else {
@@ -28,6 +32,11 @@ class HealOrHarmMobEffect extends InstantenousMobEffect {
     public void applyInstantenousEffect(@Nullable Entity source, @Nullable Entity attacker, LivingEntity target, int amplifier, double proximity) {
         int j;
 
+        // Scissors start - Don't apply any healing/harming effects for Creative/Invulnerable players and cap the amplifier for those who aren't.
+        if (target instanceof net.minecraft.world.entity.player.Player player && (player.isCreative() || player.isInvulnerable())) return;
+        amplifier = Math.min(Math.abs(amplifier), 124);
+        // Scissors end
+
         if (this.isHarm == target.isInvertedHealAndHarm()) {
             j = (int) (proximity * (double) (4 << amplifier) + 0.5D);
             target.heal((float) j, org.bukkit.event.entity.EntityRegainHealthEvent.RegainReason.MAGIC); // CraftBukkit