From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@Gmail.com>
Date: Mon, 10 Jan 2022 10:04:31 -0600
Subject: [PATCH] Configurable player pickup exp delay

Default vanilla value is to delay 2 ticks between picking up exp orbs.
Players only pick up 1 orb at a time, so even with setting this to 0
players still only pick up one orb every tick. However, setting this
to any negative number will pick up all orbs instantly.

diff --git a/src/main/java/net/minecraft/world/entity/ExperienceOrb.java b/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
index 9743e3ed1bbccc44c39df864e980e64fc5e32e1d..3003f2ab38008b761bee49823b49edae67cd5292 100644
--- a/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
+++ b/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
@@ -329,7 +329,7 @@ public class ExperienceOrb extends Entity {
     public void playerTouch(Player player) {
         if (player instanceof ServerPlayer entityplayer) {
             if (player.takeXpDelay == 0 && new com.destroystokyo.paper.event.player.PlayerPickupExperienceEvent(entityplayer.getBukkitEntity(), (org.bukkit.entity.ExperienceOrb) this.getBukkitEntity()).callEvent()) { // Paper - PlayerPickupExperienceEvent
-                player.takeXpDelay = CraftEventFactory.callPlayerXpCooldownEvent(player, 2, PlayerExpCooldownChangeEvent.ChangeReason.PICKUP_ORB).getNewCooldown(); // CraftBukkit - entityhuman.takeXpDelay = 2;
+                player.takeXpDelay = CraftEventFactory.callPlayerXpCooldownEvent(player, this.level().purpurConfig.playerExpPickupDelay, PlayerExpCooldownChangeEvent.ChangeReason.PICKUP_ORB).getNewCooldown(); // CraftBukkit - entityhuman.takeXpDelay = 2; // Purpur
                 player.take(this, 1);
                 int i = this.repairPlayerItems(entityplayer, this.value);
 
diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
index cb6f161d32fe9642e9e9b1efc47d88612041ea15..92df67d9e1d32c8a7aaeaaa46c7641af600edc52 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -636,7 +636,7 @@ public abstract class Player extends LivingEntity {
             while (iterator.hasNext()) {
                 Entity entity = (Entity) iterator.next();
 
-                if (entity.getType() == EntityType.EXPERIENCE_ORB) {
+                if (entity.getType() == EntityType.EXPERIENCE_ORB && entity.level().purpurConfig.playerExpPickupDelay >= 0) { // Purpur
                     list1.add(entity);
                 } else if (!entity.isRemoved()) {
                     this.touch(entity);
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 952f468ce759ff80f23869ae18784f6b50e5c3f2..3dd5ce6fb7d14a5df52453612922ae4b01c6e1e3 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -418,6 +418,7 @@ public class PurpurWorldConfig {
     public boolean playerRidableInWater = false;
     public boolean playerRemoveBindingWithWeakness = false;
     public int shiftRightClickRepairsMendingPoints = 0;
+    public int playerExpPickupDelay = 2;
     private void playerSettings() {
         if (PurpurConfig.version < 19) {
             boolean oldVal = getBoolean("gameplay-mechanics.player.idle-timeout.mods-target", idleTimeoutTargetPlayer);
@@ -443,6 +444,7 @@ public class PurpurWorldConfig {
         playerRidableInWater = getBoolean("gameplay-mechanics.player.ridable-in-water", playerRidableInWater);
         playerRemoveBindingWithWeakness = getBoolean("gameplay-mechanics.player.curse-of-binding.remove-with-weakness", playerRemoveBindingWithWeakness);
         shiftRightClickRepairsMendingPoints = getInt("gameplay-mechanics.player.shift-right-click-repairs-mending-points", shiftRightClickRepairsMendingPoints);
+        playerExpPickupDelay = getInt("gameplay-mechanics.player.exp-pickup-delay-ticks", playerExpPickupDelay);
     }
 
     public boolean silkTouchEnabled = false;