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/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index c58b18cd75eca14ce61d59c6beffa34337917ddd..f21bd06d7f0531e8ae0412377757a147e9db4e85 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -823,4 +823,9 @@ public class PaperWorldConfig {
     private void showSignClickCommandFailureMessagesToPlayer() {
         showSignClickCommandFailureMessagesToPlayer = getBoolean("show-sign-click-command-failure-msgs-to-player", showSignClickCommandFailureMessagesToPlayer);
     }
+
+    public boolean allowPlayerCrammingDamage = false;
+    private void playerCrammingDamage() {
+        allowPlayerCrammingDamage = getBoolean("allow-player-cramming-damage", allowPlayerCrammingDamage);
+    }
 }
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 7255e4baae551177d7536555986aaa0f8333f626..6d920390ae8ac5d4388c1825c099b2461684eb9e 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1434,7 +1434,7 @@ public class ServerPlayer extends Player {
 
     @Override
     public boolean isInvulnerableTo(DamageSource damageSource) {
-        return super.isInvulnerableTo(damageSource) || this.isChangingDimension() || this.getAbilities().invulnerable && damageSource == DamageSource.WITHER;
+        return super.isInvulnerableTo(damageSource) || this.isChangingDimension() || this.getAbilities().invulnerable && damageSource == DamageSource.WITHER || !level.paperConfig.allowPlayerCrammingDamage && damageSource == DamageSource.CRAMMING; // Paper - disable player cramming
     }
 
     @Override