Paper/patches/server/0640-Don-t-apply-cramming-damage-to-players.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Phoenix616 <max@themoep.de>
Date: Sun, 20 Jun 2021 16:35:42 +0100
Subject: [PATCH] Don't apply cramming damage to players

It does not make a lot of sense to damage players if they get crammed,
 especially as the usecase of teleporting lots of players to the same
 location isn't too uncommon and killing all those players isn't
 really what one would expect to happen.

For those who really want it a config option is provided.

diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 478dbba3519f8d2fdd4b203756403761ccad553b..deaf1fcb189ba1382f2b52d12afa12463874f7ec 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -100,6 +100,7 @@ import net.minecraft.util.Mth;
 import net.minecraft.util.RandomSource;
 import net.minecraft.util.Unit;
 import net.minecraft.world.damagesource.DamageSource;
+import net.minecraft.world.damagesource.DamageSources;
 import net.minecraft.world.effect.MobEffectInstance;
 import net.minecraft.world.effect.MobEffects;
 import net.minecraft.world.entity.Entity;
@@ -1472,7 +1473,7 @@ public class ServerPlayer extends Player {
 
     @Override
     public boolean isInvulnerableTo(DamageSource damageSource) {
-        return super.isInvulnerableTo(damageSource) || this.isChangingDimension();
+        return super.isInvulnerableTo(damageSource) || this.isChangingDimension()  || !this.level().paperConfig().collisions.allowPlayerCrammingDamage && damageSource == damageSources().cramming(); // Paper - disable player cramming
     }
 
     @Override