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-rw-r--r--patches/server/0281-Fixes-and-additions-to-the-spawn-reason-API.patch219
1 files changed, 219 insertions, 0 deletions
diff --git a/patches/server/0281-Fixes-and-additions-to-the-spawn-reason-API.patch b/patches/server/0281-Fixes-and-additions-to-the-spawn-reason-API.patch
new file mode 100644
index 0000000000..e910254cef
--- /dev/null
+++ b/patches/server/0281-Fixes-and-additions-to-the-spawn-reason-API.patch
@@ -0,0 +1,219 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <[email protected]>
+Date: Sun, 24 Mar 2019 00:24:52 -0400
+Subject: [PATCH] Fixes and additions to the spawn reason API
+
+Expose an entities spawn reason on the entity.
+Pre existing entities will return NATURAL if it was a non
+persistenting Living Entity, SPAWNER for spawners,
+or DEFAULT since data was not stored.
+
+Additionally, add missing spawn reasons.
+
+Co-authored-by: Jake Potrebic <[email protected]>
+Co-authored-by: Doc <[email protected]>
+
+diff --git a/src/main/java/net/minecraft/server/commands/SummonCommand.java b/src/main/java/net/minecraft/server/commands/SummonCommand.java
+index bf72cf288ade52ee8cc41ca978f368b3ad575951..798999be50d26be357ef3c6d5b9383ce4d1048c1 100644
+--- a/src/main/java/net/minecraft/server/commands/SummonCommand.java
++++ b/src/main/java/net/minecraft/server/commands/SummonCommand.java
+@@ -57,6 +57,7 @@ public class SummonCommand {
+ ServerLevel worldserver = source.getLevel();
+ Entity entity = EntityType.loadEntityRecursive(nbttagcompound1, worldserver, (entity1) -> {
+ entity1.moveTo(pos.x, pos.y, pos.z, entity1.getYRot(), entity1.getXRot());
++ entity1.spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.COMMAND; // Paper - Entity#getEntitySpawnReason
+ return entity1;
+ });
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index e9d08662c065d04a67918f0aa2cd4fde5798f2a6..a6a21def1ae0d35fa106da6242c49a0928e4eda5 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -1207,6 +1207,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
+ return true;
+ }
+ // Paper end - extra debug info
++ if (entity.spawnReason == null) entity.spawnReason = spawnReason; // Paper - Entity#getEntitySpawnReason
+ if (entity.isRemoved()) {
+ // WorldServer.LOGGER.warn("Tried to add entity {} but it was marked as removed already", EntityTypes.getKey(entity.getType())); // CraftBukkit
+ return false;
+diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
+index 00c43d7b846e97e2cc2105c93be5ce918fafd775..8f90e8cd36348089799097807ead774e186c2604 100644
+--- a/src/main/java/net/minecraft/server/players/PlayerList.java
++++ b/src/main/java/net/minecraft/server/players/PlayerList.java
+@@ -223,6 +223,11 @@ public abstract class PlayerList {
+ worldserver1 = worldserver;
+ }
+
++ // Paper start - Entity#getEntitySpawnReason
++ if (optional.isEmpty()) {
++ player.spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.DEFAULT; // set Player SpawnReason to DEFAULT on first login
++ }
++ // Paper end - Entity#getEntitySpawnReason
+ player.setServerLevel(worldserver1);
+ String s1 = connection.getLoggableAddress(this.server.logIPs());
+
+@@ -348,7 +353,7 @@ public abstract class PlayerList {
+ CompoundTag nbttagcompound = ((CompoundTag) optional.get()).getCompound("RootVehicle");
+ ServerLevel finalWorldServer = worldserver1; // CraftBukkit - decompile error
+ Entity entity = EntityType.loadEntityRecursive(nbttagcompound.getCompound("Entity"), worldserver1, (entity1) -> {
+- return !finalWorldServer.addWithUUID(entity1) ? null : entity1; // CraftBukkit - decompile error
++ return !finalWorldServer.addWithUUID(entity1, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.MOUNT) ? null : entity1; // CraftBukkit - decompile error // Paper - Entity#getEntitySpawnReason
+ });
+
+ if (entity != null) {
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index 2e376b0b2bf2d49ad0669b6e6fd287628a72ea64..869cd3723c6704e7512f4637682476b8af9f0264 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
++++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -247,6 +247,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+ }
+ }
+ // Paper end - Share random for entities to make them more random
++ public org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason spawnReason; // Paper - Entity#getEntitySpawnReason
+
+ private CraftEntity bukkitEntity;
+
+@@ -2275,6 +2276,9 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+ }
+ nbttagcompound.put("Paper.Origin", this.newDoubleList(origin.getX(), origin.getY(), origin.getZ()));
+ }
++ if (spawnReason != null) {
++ nbttagcompound.putString("Paper.SpawnReason", spawnReason.name());
++ }
+ // Save entity's from mob spawner status
+ if (spawnedViaMobSpawner) {
+ nbttagcompound.putBoolean("Paper.FromMobSpawner", true);
+@@ -2421,6 +2425,26 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+ }
+
+ spawnedViaMobSpawner = nbt.getBoolean("Paper.FromMobSpawner"); // Restore entity's from mob spawner status
++ if (nbt.contains("Paper.SpawnReason")) {
++ String spawnReasonName = nbt.getString("Paper.SpawnReason");
++ try {
++ spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.valueOf(spawnReasonName);
++ } catch (Exception ignored) {
++ LOGGER.error("Unknown SpawnReason " + spawnReasonName + " for " + this);
++ }
++ }
++ if (spawnReason == null) {
++ if (spawnedViaMobSpawner) {
++ spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER;
++ } else if (this instanceof Mob && (this instanceof net.minecraft.world.entity.animal.Animal || this instanceof net.minecraft.world.entity.animal.AbstractFish) && !((Mob) this).removeWhenFarAway(0.0)) {
++ if (!nbt.getBoolean("PersistenceRequired")) {
++ spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL;
++ }
++ }
++ }
++ if (spawnReason == null) {
++ spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.DEFAULT;
++ }
+ // Paper end
+
+ } catch (Throwable throwable) {
+diff --git a/src/main/java/net/minecraft/world/entity/EntityType.java b/src/main/java/net/minecraft/world/entity/EntityType.java
+index 69a661f01e43d17262fd2845dde5528416bbe456..c0062c8f83641ff30e79a309c0bb9930ba4b422a 100644
+--- a/src/main/java/net/minecraft/world/entity/EntityType.java
++++ b/src/main/java/net/minecraft/world/entity/EntityType.java
+@@ -366,7 +366,7 @@ 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/OminousItemSpawner.java b/src/main/java/net/minecraft/world/entity/OminousItemSpawner.java
+index 146cbec9e64b6c77759aadd0d0c4e989018e9aef..4c4545b3732d4c08afdb7bc1913169a96e82825c 100644
+--- a/src/main/java/net/minecraft/world/entity/OminousItemSpawner.java
++++ b/src/main/java/net/minecraft/world/entity/OminousItemSpawner.java
+@@ -89,7 +89,7 @@ public class OminousItemSpawner extends Entity {
+ entity = new ItemEntity(level, this.getX(), this.getY(), this.getZ(), itemStack);
+ }
+
+- level.addFreshEntity(entity);
++ level.addFreshEntity(entity, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.OMINOUS_ITEM_SPAWNER); // Paper - Fixes and additions to the SpawnReason API
+ level.levelEvent(3021, this.blockPosition(), 1);
+ level.gameEvent(entity, GameEvent.ENTITY_PLACE, this.position());
+ this.setItem(ItemStack.EMPTY);
+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 1dade7a4fbdf190661e4431496349444467509cc..3e869620db35d38db39fbeed715b898ef9d2743c 100644
+--- a/src/main/java/net/minecraft/world/entity/projectile/DragonFireball.java
++++ b/src/main/java/net/minecraft/world/entity/projectile/DragonFireball.java
+@@ -65,7 +65,7 @@ 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) entityareaeffectcloud.getBukkitEntity()).callEvent()) { // Paper - EnderDragon Events
+ this.level().levelEvent(2006, this.blockPosition(), this.isSilent() ? -1 : 1);
+- this.level().addFreshEntity(entityareaeffectcloud);
++ this.level().addFreshEntity(entityareaeffectcloud, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.EXPLOSION); // Paper - use correct spawn reason
+ } else entityareaeffectcloud.discard(null); // Paper - EnderDragon Events
+ this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+ }
+diff --git a/src/main/java/net/minecraft/world/level/BaseSpawner.java b/src/main/java/net/minecraft/world/level/BaseSpawner.java
+index ee897b8c9462dbb3d7be9a2994753155065ce205..1d0964a7f544735a0213d5c7832c71f53db139a9 100644
+--- a/src/main/java/net/minecraft/world/level/BaseSpawner.java
++++ b/src/main/java/net/minecraft/world/level/BaseSpawner.java
+@@ -191,6 +191,7 @@ public abstract class BaseSpawner {
+ }
+
+ entity.spawnedViaMobSpawner = true; // Paper
++ entity.spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER; // Paper - Entity#getEntitySpawnReason
+ flag = true; // Paper
+ // CraftBukkit start
+ if (org.bukkit.craftbukkit.event.CraftEventFactory.callSpawnerSpawnEvent(entity, pos).isCancelled()) {
+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 211b7809f099678bc3bd64bd29fd9c4d19e3ab0d..b968129b9a93fdf771caba5f768456070543ba6a 100644
+--- a/src/main/java/net/minecraft/world/level/block/FrogspawnBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/FrogspawnBlock.java
+@@ -111,7 +111,7 @@ public class FrogspawnBlock extends Block {
+ int k = random.nextInt(1, 361);
+ tadpole.moveTo(d, (double)pos.getY() - 0.5, e, (float)k, 0.0F);
+ tadpole.setPersistenceRequired();
+- world.addFreshEntity(tadpole);
++ world.addFreshEntity(tadpole, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.EGG); // Paper - use correct spawn reason
+ }
+ }
+ }
+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 1eda49c9ce8ee009cb08b18f02f59b37c2118628..14a5cd54820243f4ca59857b0d67c1e86457d590 100644
+--- a/src/main/java/net/minecraft/world/level/block/SnifferEggBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/SnifferEggBlock.java
+@@ -73,7 +73,7 @@ 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 - use correct spawn reason
+ }
+ }
+ }
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/SculkShriekerBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/SculkShriekerBlockEntity.java
+index dbc0b69603dcffbf3d41d79719aa0f2b7da4a131..dd86f5ec5b2051aeea4e19ff97146362b1e8d019 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/SculkShriekerBlockEntity.java
++++ b/src/main/java/net/minecraft/world/level/block/entity/SculkShriekerBlockEntity.java
+@@ -189,7 +189,7 @@ public class SculkShriekerBlockEntity extends BlockEntity implements GameEventLi
+
+ private boolean trySummonWarden(ServerLevel world) {
+ return this.warningLevel >= 4
+- && SpawnUtil.trySpawnMob(EntityType.WARDEN, MobSpawnType.TRIGGERED, world, this.getBlockPos(), 20, 5, 6, SpawnUtil.Strategy.ON_TOP_OF_COLLIDER)
++ && SpawnUtil.trySpawnMob(EntityType.WARDEN, MobSpawnType.TRIGGERED, world, this.getBlockPos(), 20, 5, 6, SpawnUtil.Strategy.ON_TOP_OF_COLLIDER, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL, null) // Paper - Entity#getEntitySpawnReason
+ .isPresent();
+ }
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+index bddf98bdf60473eb1d2e533cf533ed7eee797aaa..ce70c8fddbe63d0af2b1f988ce9a2b40c5d48066 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+@@ -1018,4 +1018,11 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
+ return this.getHandle().spawnedViaMobSpawner;
+ }
+ // Paper end - Entity#fromMobSpawner
++
++ // Paper start - entity spawn reason API
++ @Override
++ public org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason getEntitySpawnReason() {
++ return getHandle().spawnReason;
++ }
++ // Paper end - entity spawn reason API
+ }