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 ad51b56279c723538ba71c47f22b96f45f82204e..c6d9b4368446c4e97ab746e0b4d067dfd646edf4 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -832,4 +832,9 @@ 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 df0b08628d736b7f75120f1b9840784f6c472853..2607dc36e0bd7a915afb0cc9e0f453a2b301c0bd 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1435,7 +1435,7 @@ 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