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path: root/patches/server/0126-ExperienceOrbs-API-for-Reason-Source-Triggering-play.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 19 Dec 2017 16:31:46 -0500
Subject: [PATCH] ExperienceOrbs API for Reason/Source/Triggering player

Adds lots of information about why this orb exists.

Replaces isFromBottle() with logic that persists entity reloads too.

diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
index 4814601e549b0b96e83ed64ee094ddaa825565de..16468dfd657501f6fd5eefa4c32682e24eaba22d 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
@@ -427,7 +427,7 @@ public class ServerPlayerGameMode {
 
                 // Drop event experience
                 if (flag && event != null) {
-                    iblockdata.getBlock().popExperience(this.level, pos, event.getExpToDrop());
+                    iblockdata.getBlock().popExperience(this.level, pos, event.getExpToDrop(), this.player); // Paper
                 }
 
                 return true;
diff --git a/src/main/java/net/minecraft/world/entity/ExperienceOrb.java b/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
index 9dffdfe5bbd0517e9a2c6a6770eea07b43ef9b33..6de7fcccb6da757185a38b79b3a22821b1186201 100644
--- a/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
+++ b/src/main/java/net/minecraft/world/entity/ExperienceOrb.java
@@ -39,13 +39,67 @@ public class ExperienceOrb extends Entity {
     public int value;
     private int count;
     private Player followingPlayer;
+    // Paper start
+    @javax.annotation.Nullable
+    public java.util.UUID sourceEntityId;
+    @javax.annotation.Nullable
+    public java.util.UUID triggerEntityId;
+    public org.bukkit.entity.ExperienceOrb.SpawnReason spawnReason = org.bukkit.entity.ExperienceOrb.SpawnReason.UNKNOWN;
+
+    private void loadPaperNBT(CompoundTag nbttagcompound) {
+        if (!nbttagcompound.contains("Paper.ExpData", 10)) { // 10 = compound
+            return;
+        }
+        CompoundTag comp = nbttagcompound.getCompound("Paper.ExpData");
+        if (comp.hasUUID("source")) {
+            this.sourceEntityId = comp.getUUID("source");
+        }
+        if (comp.hasUUID("trigger")) {
+            this.triggerEntityId = comp.getUUID("trigger");
+        }
+        if (comp.contains("reason")) {
+            String reason = comp.getString("reason");
+            try {
+                this.spawnReason = org.bukkit.entity.ExperienceOrb.SpawnReason.valueOf(reason);
+            } catch (Exception e) {
+                this.level().getCraftServer().getLogger().warning("Invalid spawnReason set for experience orb: " + e.getMessage() + " - " + reason);
+            }
+        }
+    }
+    private void savePaperNBT(CompoundTag nbttagcompound) {
+        CompoundTag comp = new CompoundTag();
+        if (this.sourceEntityId != null) {
+            comp.putUUID("source", this.sourceEntityId);
+        }
+        if (this.triggerEntityId != null) {
+            comp.putUUID("trigger", triggerEntityId);
+        }
+        if (this.spawnReason != null && this.spawnReason != org.bukkit.entity.ExperienceOrb.SpawnReason.UNKNOWN) {
+            comp.putString("reason", this.spawnReason.name());
+        }
+        nbttagcompound.put("Paper.ExpData", comp);
+    }
 
+    @io.papermc.paper.annotation.DoNotUse
+    @Deprecated
     public ExperienceOrb(Level world, double x, double y, double z, int amount) {
+        this(world, x, y, z, amount, null, null);
+    }
+
+    public ExperienceOrb(Level world, double d0, double d1, double d2, int i, @javax.annotation.Nullable org.bukkit.entity.ExperienceOrb.SpawnReason reason, @javax.annotation.Nullable Entity triggerId) {
+        this(world, d0, d1, d2, i, reason, triggerId, null);
+    }
+
+    public ExperienceOrb(Level world, double d0, double d1, double d2, int i, @javax.annotation.Nullable org.bukkit.entity.ExperienceOrb.SpawnReason reason, @javax.annotation.Nullable Entity triggerId, @javax.annotation.Nullable Entity sourceId) {
         this(EntityType.EXPERIENCE_ORB, world);
-        this.setPos(x, y, z);
+        this.sourceEntityId = sourceId != null ? sourceId.getUUID() : null;
+        this.triggerEntityId = triggerId != null ? triggerId.getUUID() : null;
+        this.spawnReason = reason != null ? reason : org.bukkit.entity.ExperienceOrb.SpawnReason.UNKNOWN;
+        // Paper end
+        this.setPos(d0, d1, d2);
         this.setYRot((float) (this.random.nextDouble() * 360.0D));
         this.setDeltaMovement((this.random.nextDouble() * 0.20000000298023224D - 0.10000000149011612D) * 2.0D, this.random.nextDouble() * 0.2D * 2.0D, (this.random.nextDouble() * 0.20000000298023224D - 0.10000000149011612D) * 2.0D);
-        this.value = amount;
+        this.value = i;
     }
 
     public ExperienceOrb(EntityType<? extends ExperienceOrb> type, Level world) {
@@ -160,12 +214,20 @@ public class ExperienceOrb extends Entity {
     }
 
     public static void award(ServerLevel world, Vec3 pos, int amount) {
+        // Paper start - add reasons for orbs
+        award(world, pos, amount, null, null, null);
+    }
+    public static void award(ServerLevel world, Vec3 pos, int amount, org.bukkit.entity.ExperienceOrb.SpawnReason reason, Entity triggerId) {
+        award(world, pos, amount, reason, triggerId, null);
+    }
+    public static void award(ServerLevel world, Vec3 pos, int amount, org.bukkit.entity.ExperienceOrb.SpawnReason reason, Entity triggerId, Entity sourceId) {
+        // Paper end - add reasons for orbs
         while (amount > 0) {
             int j = ExperienceOrb.getExperienceValue(amount);
 
             amount -= j;
             if (!ExperienceOrb.tryMergeToExisting(world, pos, j)) {
-                world.addFreshEntity(new ExperienceOrb(world, pos.x(), pos.y(), pos.z(), j));
+                world.addFreshEntity(new ExperienceOrb(world, pos.x(), pos.y(), pos.z(), j, reason, triggerId, sourceId)); // Paper - add reason
             }
         }
 
@@ -235,6 +297,7 @@ public class ExperienceOrb extends Entity {
         nbt.putShort("Age", (short) this.age);
         nbt.putShort("Value", (short) this.value);
         nbt.putInt("Count", this.count);
+        this.savePaperNBT(nbt); // Paper
     }
 
     @Override
@@ -243,6 +306,7 @@ public class ExperienceOrb extends Entity {
         this.age = nbt.getShort("Age");
         this.value = nbt.getShort("Value");
         this.count = Math.max(nbt.getInt("Count"), 1);
+        this.loadPaperNBT(nbt); // Paper
     }
 
     @Override
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index c6a30c7558f444318eb4c913a0efdad48878653a..eac1baba1714a9cbfd27170b491788f254a73223 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -1759,7 +1759,8 @@ public abstract class LivingEntity extends Entity implements Attackable {
     protected void dropExperience() {
         // CraftBukkit start - Update getExpReward() above if the removed if() changes!
         if (true && !(this instanceof net.minecraft.world.entity.boss.enderdragon.EnderDragon)) { // CraftBukkit - SPIGOT-2420: Special case ender dragon will drop the xp over time
-            ExperienceOrb.award((ServerLevel) this.level(), this.position(), this.expToDrop);
+            LivingEntity attacker = this.lastHurtByPlayer != null ? this.lastHurtByPlayer : this.lastHurtByMob; // Paper
+            ExperienceOrb.award((ServerLevel) this.level(), this.position(), this.expToDrop, this instanceof ServerPlayer ? org.bukkit.entity.ExperienceOrb.SpawnReason.PLAYER_DEATH : org.bukkit.entity.ExperienceOrb.SpawnReason.ENTITY_DEATH, attacker, this); // Paper
             this.expToDrop = 0;
         }
         // CraftBukkit end
diff --git a/src/main/java/net/minecraft/world/entity/animal/Animal.java b/src/main/java/net/minecraft/world/entity/animal/Animal.java
index dfccfde4484d4a495f796caaff31d243ed6cdddc..c2f61ed153260692c96af4f20bc5b7d55cbbc380 100644
--- a/src/main/java/net/minecraft/world/entity/animal/Animal.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Animal.java
@@ -261,12 +261,14 @@ public abstract class Animal extends AgeableMob {
 
     public void finalizeSpawnChildFromBreeding(ServerLevel worldserver, Animal entityanimal, @Nullable AgeableMob entityageable, int experience) {
         // CraftBukkit end
-        Optional.ofNullable(this.getLoveCause()).or(() -> {
-            return Optional.ofNullable(entityanimal.getLoveCause());
-        }).ifPresent((entityplayer) -> {
+        // Paper start
+        ServerPlayer entityplayer = this.getLoveCause();
+        if (entityplayer == null) entityplayer = entityanimal.getLoveCause();
+        if (entityplayer != null) {
+            // Paper end
             entityplayer.awardStat(Stats.ANIMALS_BRED);
             CriteriaTriggers.BRED_ANIMALS.trigger(entityplayer, this, entityanimal, entityageable);
-        });
+        } // Paper
         this.setAge(6000);
         entityanimal.setAge(6000);
         this.resetLove();
@@ -275,7 +277,7 @@ public abstract class Animal extends AgeableMob {
         if (worldserver.getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) {
             // CraftBukkit start - use event experience
             if (experience > 0) {
-                worldserver.addFreshEntity(new ExperienceOrb(worldserver, this.getX(), this.getY(), this.getZ(), experience));
+                worldserver.addFreshEntity(new ExperienceOrb(worldserver, this.getX(), this.getY(), this.getZ(), experience, org.bukkit.entity.ExperienceOrb.SpawnReason.BREED, entityplayer, entityageable)); // Paper
             }
             // CraftBukkit end
         }
diff --git a/src/main/java/net/minecraft/world/entity/animal/Fox.java b/src/main/java/net/minecraft/world/entity/animal/Fox.java
index 3e14e79847a0992687420ecb3bbeb742ee287714..44b6d232d940d4020fa7664e48a483c20959dde0 100644
--- a/src/main/java/net/minecraft/world/entity/animal/Fox.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Fox.java
@@ -898,7 +898,7 @@ public class Fox extends Animal implements VariantHolder<Fox.Type> {
                 if (this.level.getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) {
                     // CraftBukkit start - use event experience
                     if (experience > 0) {
-                        this.level.addFreshEntity(new ExperienceOrb(this.level, this.animal.getX(), this.animal.getY(), this.animal.getZ(), experience));
+                        this.level.addFreshEntity(new ExperienceOrb(this.level, this.animal.getX(), this.animal.getY(), this.animal.getZ(), experience, org.bukkit.entity.ExperienceOrb.SpawnReason.BREED, entityplayer, entityfox)); // Paper
                     }
                     // CraftBukkit end
                 }
diff --git a/src/main/java/net/minecraft/world/entity/animal/Turtle.java b/src/main/java/net/minecraft/world/entity/animal/Turtle.java
index c9c9a7f75ab239829026f419774945341d364e66..3a3f5e567fdefad6887e42c8e9147194ae0c4d89 100644
--- a/src/main/java/net/minecraft/world/entity/animal/Turtle.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Turtle.java
@@ -455,7 +455,7 @@ public class Turtle extends Animal {
             RandomSource randomsource = this.animal.getRandom();
 
             if (this.level.getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) {
-                this.level.addFreshEntity(new ExperienceOrb(this.level, this.animal.getX(), this.animal.getY(), this.animal.getZ(), randomsource.nextInt(7) + 1));
+                this.level.addFreshEntity(new ExperienceOrb(this.level, this.animal.getX(), this.animal.getY(), this.animal.getZ(), randomsource.nextInt(7) + 1, org.bukkit.entity.ExperienceOrb.SpawnReason.BREED, entityplayer)); // Paper;
             }
 
         }
diff --git a/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java b/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java
index 27f99f9ce39aac0bae5e9a7b34fd63833aa4ad26..0f39550f82aa1646dd5e4a887e33c414160ee7d9 100644
--- a/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java
+++ b/src/main/java/net/minecraft/world/entity/boss/enderdragon/EnderDragon.java
@@ -682,7 +682,7 @@ public class EnderDragon extends Mob implements Enemy {
 
         if (this.level() instanceof ServerLevel) {
             if (this.dragonDeathTime > 150 && this.dragonDeathTime % 5 == 0 && true) {  // CraftBukkit - SPIGOT-2420: Already checked for the game rule when calculating the xp
-                ExperienceOrb.award((ServerLevel) this.level(), this.position(), Mth.floor((float) short0 * 0.08F));
+                ExperienceOrb.award((ServerLevel) this.level(), this.position(), Mth.floor((float) short0 * 0.08F), org.bukkit.entity.ExperienceOrb.SpawnReason.ENTITY_DEATH, this.lastHurtByPlayer, this); // Paper
             }
 
             if (this.dragonDeathTime == 1 && !this.isSilent()) {
@@ -710,7 +710,7 @@ public class EnderDragon extends Mob implements Enemy {
         this.move(MoverType.SELF, new Vec3(0.0D, 0.10000000149011612D, 0.0D));
         if (this.dragonDeathTime == 200 && this.level() instanceof ServerLevel) {
             if (true) { // CraftBukkit - SPIGOT-2420: Already checked for the game rule when calculating the xp
-                ExperienceOrb.award((ServerLevel) this.level(), this.position(), Mth.floor((float) short0 * 0.2F));
+                ExperienceOrb.award((ServerLevel) this.level(), this.position(), Mth.floor((float) short0 * 0.2F), org.bukkit.entity.ExperienceOrb.SpawnReason.ENTITY_DEATH, this.lastHurtByPlayer, this); // Paper
             }
 
             if (this.dragonFight != null) {
diff --git a/src/main/java/net/minecraft/world/entity/npc/Villager.java b/src/main/java/net/minecraft/world/entity/npc/Villager.java
index e04f3f1159c5d5fa2e3956a36e95f8afb5a1d4aa..68594d2621267f4b112b4d14d2bec3a0dd6a044a 100644
--- a/src/main/java/net/minecraft/world/entity/npc/Villager.java
+++ b/src/main/java/net/minecraft/world/entity/npc/Villager.java
@@ -637,7 +637,7 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
         }
 
         if (offer.shouldRewardExp()) {
-            this.level().addFreshEntity(new ExperienceOrb(this.level(), this.getX(), this.getY() + 0.5D, this.getZ(), i));
+            this.level().addFreshEntity(new ExperienceOrb(this.level(), this.getX(), this.getY() + 0.5D, this.getZ(), i, org.bukkit.entity.ExperienceOrb.SpawnReason.VILLAGER_TRADE, this.getTradingPlayer(), this)); // Paper
         }
 
     }
diff --git a/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java b/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
index fb80311e90ec83ca39b213d9348c821c402a1933..65592c41b1519eff77ccd7ddd3c885058f3ed138 100644
--- a/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
+++ b/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
@@ -186,7 +186,7 @@ public class WanderingTrader extends net.minecraft.world.entity.npc.AbstractVill
         if (offer.shouldRewardExp()) {
             int i = 3 + this.random.nextInt(4);
 
-            this.level().addFreshEntity(new ExperienceOrb(this.level(), this.getX(), this.getY() + 0.5D, this.getZ(), i));
+            this.level().addFreshEntity(new ExperienceOrb(this.level(), this.getX(), this.getY() + 0.5D, this.getZ(), i, org.bukkit.entity.ExperienceOrb.SpawnReason.VILLAGER_TRADE, this.getTradingPlayer(), this)); // Paper
         }
 
     }
diff --git a/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java b/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java
index 4377a0f7387a09983a5580d408775f386ea5f487..dbff697927e6a6c745377aafd3b476b58f005882 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java
@@ -522,7 +522,7 @@ public class FishingHook extends Projectile {
                     this.level().addFreshEntity(entityitem);
                     // CraftBukkit start - this.random.nextInt(6) + 1 -> playerFishEvent.getExpToDrop()
                     if (playerFishEvent.getExpToDrop() > 0) {
-                        entityhuman.level().addFreshEntity(new ExperienceOrb(entityhuman.level(), entityhuman.getX(), entityhuman.getY() + 0.5D, entityhuman.getZ() + 0.5D, playerFishEvent.getExpToDrop()));
+                        entityhuman.level().addFreshEntity(new ExperienceOrb(entityhuman.level(), entityhuman.getX(), entityhuman.getY() + 0.5D, entityhuman.getZ() + 0.5D, playerFishEvent.getExpToDrop(), org.bukkit.entity.ExperienceOrb.SpawnReason.FISHING, this.getPlayerOwner(), this)); // Paper
                     }
                     // CraftBukkit end
                     if (itemstack1.is(ItemTags.FISHES)) {
diff --git a/src/main/java/net/minecraft/world/entity/projectile/ThrownExperienceBottle.java b/src/main/java/net/minecraft/world/entity/projectile/ThrownExperienceBottle.java
index 2191af62f4202413738542d738456ca71febdbf4..5b3059460d4b18d984483d655526d83204fb1c73 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/ThrownExperienceBottle.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/ThrownExperienceBottle.java
@@ -51,7 +51,7 @@ public class ThrownExperienceBottle extends ThrowableItemProjectile {
             }
             // CraftBukkit end
 
-            ExperienceOrb.award((ServerLevel) this.level(), this.position(), i);
+            ExperienceOrb.award((ServerLevel) this.level(), this.position(), i, org.bukkit.entity.ExperienceOrb.SpawnReason.EXP_BOTTLE, this.getOwner(), this); // Paper
             this.discard();
         }
 
diff --git a/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java b/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java
index c858b987cb6f92cc6fa705bbe1ae11a720eb242c..2c263447aa8853f18d1c1d476b49a47f6e9ca2ad 100644
--- a/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java
@@ -97,7 +97,7 @@ public class GrindstoneMenu extends AbstractContainerMenu {
             public void onTake(net.minecraft.world.entity.player.Player player, ItemStack stack) {
                 context.execute((world, blockposition) -> {
                     if (world instanceof ServerLevel) {
-                        ExperienceOrb.award((ServerLevel) world, Vec3.atCenterOf(blockposition), this.getExperienceAmount(world));
+                        ExperienceOrb.award((ServerLevel) world, Vec3.atCenterOf(blockposition), this.getExperienceAmount(world), org.bukkit.entity.ExperienceOrb.SpawnReason.GRINDSTONE, player); // Paper
                     }
 
                     world.levelEvent(1042, blockposition, 0);
diff --git a/src/main/java/net/minecraft/world/level/block/Block.java b/src/main/java/net/minecraft/world/level/block/Block.java
index 7ed82beb538a25a5246f6288c1dddb4f5f85e997..7646b66bc5ba0288608de0d836c7307e02eebe67 100644
--- a/src/main/java/net/minecraft/world/level/block/Block.java
+++ b/src/main/java/net/minecraft/world/level/block/Block.java
@@ -362,8 +362,13 @@ public class Block extends BlockBehaviour implements ItemLike {
     }
 
     public void popExperience(ServerLevel world, BlockPos pos, int size) {
+        // Paper start - add player parameter
+        popExperience(world, pos, size, null);
+    }
+    public void popExperience(ServerLevel world, BlockPos pos, int size, net.minecraft.server.level.ServerPlayer player) {
+        // Paper end - add player parameter
         if (world.getGameRules().getBoolean(GameRules.RULE_DOBLOCKDROPS)) {
-            ExperienceOrb.award(world, Vec3.atCenterOf(pos), size);
+            ExperienceOrb.award(world, Vec3.atCenterOf(pos), size, org.bukkit.entity.ExperienceOrb.SpawnReason.BLOCK_BREAK, player); // Paper
         }
 
     }
diff --git a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
index 9113fd7070596ecf504837f335022d5eb4ef9a77..d56a64b058d8848e405e33d9884a61ea952a8f71 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
@@ -647,7 +647,7 @@ public abstract class AbstractFurnaceBlockEntity extends BaseContainerBlockEntit
         j = event.getExpToDrop();
         // CraftBukkit end
 
-        ExperienceOrb.award(worldserver, vec3d, j);
+        ExperienceOrb.award(worldserver, vec3d, j, org.bukkit.entity.ExperienceOrb.SpawnReason.FURNACE, entityhuman); // Paper
     }
 
     @Override
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
index 8e1d70bbc433780f264dde137aa7f37e7f6362cd..3dd759d030411420f93eb5ac51f2087ecbf2dc49 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
@@ -942,7 +942,7 @@ public abstract class CraftRegionAccessor implements RegionAccessor {
         } else if (TNTPrimed.class.isAssignableFrom(clazz)) {
             entity = new PrimedTnt(world, x, y, z, null);
         } else if (ExperienceOrb.class.isAssignableFrom(clazz)) {
-            entity = new net.minecraft.world.entity.ExperienceOrb(world, x, y, z, 0);
+            entity = new net.minecraft.world.entity.ExperienceOrb(world, x, y, z, 0, org.bukkit.entity.ExperienceOrb.SpawnReason.CUSTOM, null, null); // Paper
         } else if (LightningStrike.class.isAssignableFrom(clazz)) {
             entity = net.minecraft.world.entity.EntityType.LIGHTNING_BOLT.create(world);
             entity.moveTo(location.getX(), location.getY(), location.getZ());
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftExperienceOrb.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftExperienceOrb.java
index 40713228b149b4532fcee3a54bbe63e161318258..84899284703baeb04bfc79251941265d52ac07e8 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftExperienceOrb.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftExperienceOrb.java
@@ -19,6 +19,18 @@ public class CraftExperienceOrb extends CraftEntity implements ExperienceOrb {
         this.getHandle().value = value;
     }
 
+    // Paper start
+    public java.util.UUID getTriggerEntityId() {
+        return getHandle().triggerEntityId;
+    }
+    public java.util.UUID getSourceEntityId() {
+        return getHandle().sourceEntityId;
+    }
+    public SpawnReason getSpawnReason() {
+        return getHandle().spawnReason;
+    }
+    // Paper end
+
     @Override
     public net.minecraft.world.entity.ExperienceOrb getHandle() {
         return (net.minecraft.world.entity.ExperienceOrb) entity;