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 f0f1c5b4dd4dffa29715e3cfe7225f0753713d98..481732b49b9492a7010d85932554b0d466e82765 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -95,6 +95,7 @@ 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;
@@ -1431,7 +1432,7 @@ 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