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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 25 Sep 2022 11:21:01 -0700
Subject: [PATCH] Fixes and additions to the SpawnReason API

Fixes some wrong reasons, and adds missing spawn reasons for entities.

Co-authored-by: Doc <nachito94@msn.com>

diff --git a/src/main/java/net/minecraft/world/entity/EntityType.java b/src/main/java/net/minecraft/world/entity/EntityType.java
index b1a5f160f5bd4da271f212f02c3c977a5e576b99..e6cddde3e5b87d114cda5d4c6de5f71ee96e933d 100644
--- a/src/main/java/net/minecraft/world/entity/EntityType.java
+++ b/src/main/java/net/minecraft/world/entity/EntityType.java
@@ -349,7 +349,7 @@ public class EntityType<T extends Entity> implements FeatureElement, EntityTypeT
     @Nullable
     public T spawn(ServerLevel world, @Nullable ItemStack stack, @Nullable Player player, BlockPos pos, MobSpawnType spawnReason, boolean alignPosition, boolean invertY) {
         // CraftBukkit start
-        return this.spawn(world, stack, player, pos, spawnReason, alignPosition, invertY, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER_EGG);
+        return this.spawn(world, stack, player, pos, spawnReason, alignPosition, invertY, spawnReason == MobSpawnType.DISPENSER ? org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.DISPENSE_EGG : org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER_EGG); // Paper - use correct spawn reason for dispenser spawn eggs
     }
 
     @Nullable
diff --git a/src/main/java/net/minecraft/world/entity/projectile/DragonFireball.java b/src/main/java/net/minecraft/world/entity/projectile/DragonFireball.java
index 9652e3385ad10e5d825dd141f6be3522c596916d..6256ce68d6ecada66745fb09360cba2bf991360c 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/DragonFireball.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/DragonFireball.java
@@ -54,7 +54,7 @@ public class DragonFireball extends AbstractHurtingProjectile {
 
                 if (new com.destroystokyo.paper.event.entity.EnderDragonFireballHitEvent((org.bukkit.entity.DragonFireball) this.getBukkitEntity(), list.stream().map(LivingEntity::getBukkitLivingEntity).collect(java.util.stream.Collectors.toList()), (org.bukkit.entity.AreaEffectCloud) areaEffectCloud.getBukkitEntity()).callEvent()) { // Paper
                 this.level().levelEvent(2006, this.blockPosition(), this.isSilent() ? -1 : 1);
-                this.level().addFreshEntity(areaEffectCloud);
+                this.level().addFreshEntity(areaEffectCloud, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.EXPLOSION); // Paper
                 } else areaEffectCloud.discard(); // Paper
                 this.discard();
             }
diff --git a/src/main/java/net/minecraft/world/level/block/CarvedPumpkinBlock.java b/src/main/java/net/minecraft/world/level/block/CarvedPumpkinBlock.java
index 41a74780ce9edc8442732b04785396c245ee5c32..23c487e295b3b736d8800f0c884324c9b18a5373 100644
--- a/src/main/java/net/minecraft/world/level/block/CarvedPumpkinBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/CarvedPumpkinBlock.java
@@ -85,7 +85,17 @@ public class CarvedPumpkinBlock extends HorizontalDirectionalBlock {
         // clearPatternBlocks(world, shapedetector_shapedetectorcollection); // CraftBukkit - moved down
         entity.moveTo((double) pos.getX() + 0.5D, (double) pos.getY() + 0.05D, (double) pos.getZ() + 0.5D, 0.0F, 0.0F);
         // CraftBukkit start
-        if (!world.addFreshEntity(entity, SpawnReason.BUILD_IRONGOLEM)) {
+        // Paper start - correct spawn reason
+        final SpawnReason spawnReason;
+        if (entity.getType() == EntityType.SNOW_GOLEM) {
+            spawnReason = SpawnReason.BUILD_SNOWMAN;
+        } else if (entity.getType() == EntityType.IRON_GOLEM) {
+            spawnReason = SpawnReason.BUILD_IRONGOLEM;
+        } else {
+            spawnReason = SpawnReason.DEFAULT;
+        }
+        if (!world.addFreshEntity(entity, spawnReason)) {
+        // Paper end
             return;
         }
         CarvedPumpkinBlock.clearPatternBlocks(world, patternResult); // CraftBukkit - from above
diff --git a/src/main/java/net/minecraft/world/level/block/FrogspawnBlock.java b/src/main/java/net/minecraft/world/level/block/FrogspawnBlock.java
index 294d22b6b27e96b59c77527efcfefa9410b756e4..bebcdc70c4cb01764428836fff76f03b94f2eae8 100644
--- a/src/main/java/net/minecraft/world/level/block/FrogspawnBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/FrogspawnBlock.java
@@ -110,7 +110,7 @@ public class FrogspawnBlock extends Block {
                 int k = random.nextInt(1, 361);
                 tadpole.moveTo(d, (double)pos.getY() - 0.5D, e, (float)k, 0.0F);
                 tadpole.setPersistenceRequired();
-                world.addFreshEntity(tadpole);
+                world.addFreshEntity(tadpole, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.EGG); // Paper
             }
         }
 
diff --git a/src/main/java/net/minecraft/world/level/block/SnifferEggBlock.java b/src/main/java/net/minecraft/world/level/block/SnifferEggBlock.java
index 8aaa3cb2248a02b5ee25251cc837a145edd34341..ecb8224beb0ee65855c7529b69ea56b7b6674664 100644
--- a/src/main/java/net/minecraft/world/level/block/SnifferEggBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/SnifferEggBlock.java
@@ -81,7 +81,7 @@ public class SnifferEggBlock extends Block {
                 Vec3 vec3 = pos.getCenter();
                 sniffer.setBaby(true);
                 sniffer.moveTo(vec3.x(), vec3.y(), vec3.z(), Mth.wrapDegrees(world.random.nextFloat() * 360.0F), 0.0F);
-                world.addFreshEntity(sniffer);
+                world.addFreshEntity(sniffer, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.EGG); // Paper
             }
 
         }