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Paper/patches/server/0037-Player-affects-spawning-API.patch
Jake Potrebic 3e90a19183
Updated Upstream (Bukkit/CraftBukkit) 
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
304e83eb PR-1002: Improve documentation and implementation of getMaxStackSize
e8215ea2 SPIGOT-7638: Library loader does not seem to resolve every dependency
79c595c0 SPIGOT-7637: Bad logic in checking nullability of AttributeModifier slots

CraftBukkit Changes:
91b1fc3f1 SPIGOT-7644: Fix ItemMeta#getAsString
4e77a81e1 SPIGOT-7615: PlayerLeashEntityEvent cancelled eats lead
996f660f3 Do not remove leash knot if leasing to an existing leash knot gets cancelled
f70367d42 SPIGOT-7643: Fix inverted leash event cancelled usage and remove leash knot if no entity gets leashed
7ddb48294 SPIGOT-7640: Abnormal jumping height of wind charge
080c8711e SPIGOT-7639: Incoming plugin channels not working
ad549847e Open a direct connection instead of pinging mojang server to check if it is reachable
38e2926c5 SPIGOT-7365: DamageCause blocked by shield should trigger invulnerableTime
2024-04-27 18:00:01 -07:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jedediah Smith <jedediah@silencegreys.com>
Date: Tue, 1 Mar 2016 14:47:52 -0600
Subject: [PATCH] Player affects spawning API
diff --git a/src/main/java/net/minecraft/world/entity/EntitySelector.java b/src/main/java/net/minecraft/world/entity/EntitySelector.java
index 3126e8cab3c40e3af47f4c8925e1c6a9523309ba..3207166061bf9c4d7bf3f38e5a9f7aff23ccd5c1 100644
--- a/src/main/java/net/minecraft/world/entity/EntitySelector.java
+++ b/src/main/java/net/minecraft/world/entity/EntitySelector.java
@@ -30,6 +30,11 @@ public final class EntitySelector {
public static final Predicate<Entity> CAN_BE_COLLIDED_WITH = EntitySelector.NO_SPECTATORS.and(Entity::canBeCollidedWith);
private EntitySelector() {}
+ // Paper start - Affects Spawning API
+ public static final Predicate<Entity> PLAYER_AFFECTS_SPAWNING = (entity) -> {
+ return !entity.isSpectator() && entity.isAlive() && entity instanceof Player player && player.affectsSpawning;
+ };
+ // Paper end - Affects Spawning API
public static Predicate<Entity> withinDistance(double x, double y, double z, double max) {
double d4 = max * max;
diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
index c8ff4b01186f924473b9ffde948d7f0573e8d56f..426fa1798087ab1fb4198bd036f498606dce7c3f 100644
--- a/src/main/java/net/minecraft/world/entity/Mob.java
+++ b/src/main/java/net/minecraft/world/entity/Mob.java
@@ -907,7 +907,7 @@ public abstract class Mob extends LivingEntity implements EquipmentUser, Targeti
if (this.level().getDifficulty() == Difficulty.PEACEFUL && this.shouldDespawnInPeaceful()) {
this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
} else if (!this.isPersistenceRequired() && !this.requiresCustomPersistence()) {
- Player entityhuman = this.level().getNearestPlayer(this, -1.0D);
+ Player entityhuman = this.level().findNearbyPlayer(this, -1.0D, EntitySelector.PLAYER_AFFECTS_SPAWNING); // Paper - Affects Spawning API
if (entityhuman != null) {
double d0 = entityhuman.distanceToSqr((Entity) this);
diff --git a/src/main/java/net/minecraft/world/entity/animal/horse/SkeletonTrapGoal.java b/src/main/java/net/minecraft/world/entity/animal/horse/SkeletonTrapGoal.java
index c01d9751828d03f37f36b52d84336bd0ee008e8b..f3a02925833733ae50d706ffc681dd05344a7687 100644
--- a/src/main/java/net/minecraft/world/entity/animal/horse/SkeletonTrapGoal.java
+++ b/src/main/java/net/minecraft/world/entity/animal/horse/SkeletonTrapGoal.java
@@ -27,7 +27,7 @@ public class SkeletonTrapGoal extends Goal {
@Override
public boolean canUse() {
- return this.horse.level().hasNearbyAlivePlayer(this.horse.getX(), this.horse.getY(), this.horse.getZ(), 10.0D);
+ return this.horse.level().hasNearbyAlivePlayerThatAffectsSpawning(this.horse.getX(), this.horse.getY(), this.horse.getZ(), 10.0D); // Paper - Affects Spawning API
}
@Override
diff --git a/src/main/java/net/minecraft/world/entity/monster/Silverfish.java b/src/main/java/net/minecraft/world/entity/monster/Silverfish.java
index 95e9d38dbccbd1c43ababd707e18dfe6779256c1..9ff42b0ae2b82dc3092e38e1439d89b4ab554b17 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Silverfish.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Silverfish.java
@@ -118,7 +118,7 @@ public class Silverfish extends Monster {
if (checkAnyLightMonsterSpawnRules(type, world, spawnReason, pos, random)) {
Player entityhuman = world.getNearestPlayer((double) pos.getX() + 0.5D, (double) pos.getY() + 0.5D, (double) pos.getZ() + 0.5D, 5.0D, true);
- return entityhuman == null;
+ return !(entityhuman != null && !entityhuman.affectsSpawning) && entityhuman == null; // Paper - Affects Spawning API
} else {
return false;
}
diff --git a/src/main/java/net/minecraft/world/entity/monster/Zombie.java b/src/main/java/net/minecraft/world/entity/monster/Zombie.java
index 8256af275e468a5aa506f0af22428f4082204956..c71d4f91df7ec1cf26888b00fac444bccbbe472e 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Zombie.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Zombie.java
@@ -322,7 +322,7 @@ public class Zombie extends Monster {
if (SpawnPlacements.isSpawnPositionOk(entitytypes, this.level(), blockposition) && SpawnPlacements.checkSpawnRules(entitytypes, worldserver, MobSpawnType.REINFORCEMENT, blockposition, this.level().random)) {
entityzombie.setPos((double) i1, (double) j1, (double) k1);
- if (!this.level().hasNearbyAlivePlayer((double) i1, (double) j1, (double) k1, 7.0D) && this.level().isUnobstructed(entityzombie) && this.level().noCollision((Entity) entityzombie) && !this.level().containsAnyLiquid(entityzombie.getBoundingBox())) {
+ if (!this.level().hasNearbyAlivePlayerThatAffectsSpawning((double) i1, (double) j1, (double) k1, 7.0D) && this.level().isUnobstructed(entityzombie) && this.level().noCollision((Entity) entityzombie) && !this.level().containsAnyLiquid(entityzombie.getBoundingBox())) { // Paper - Affects Spawning API
entityzombie.setTarget(entityliving, EntityTargetEvent.TargetReason.REINFORCEMENT_TARGET, true); // CraftBukkit
entityzombie.finalizeSpawn(worldserver, this.level().getCurrentDifficultyAt(entityzombie.blockPosition()), MobSpawnType.REINFORCEMENT, (SpawnGroupData) null);
worldserver.addFreshEntityWithPassengers(entityzombie, CreatureSpawnEvent.SpawnReason.REINFORCEMENTS); // CraftBukkit
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 da52fdde1a17c230b4da2c58708fa69ebcf13431..81db0e4e4bced556d35978a10c9d9789ec527830 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -193,6 +193,7 @@ public abstract class Player extends LivingEntity {
@Nullable
public Entity currentExplosionCause;
public boolean ignoreFallDamageFromCurrentImpulse;
+ public boolean affectsSpawning = true; // Paper - Affects Spawning API
// CraftBukkit start
public boolean fauxSleeping;
diff --git a/src/main/java/net/minecraft/world/level/BaseSpawner.java b/src/main/java/net/minecraft/world/level/BaseSpawner.java
index cc54da2987fafcbd69153c33033a6f272dd3be66..418e29971326008ebca0cc4b696a41a49c1c7bb7 100644
--- a/src/main/java/net/minecraft/world/level/BaseSpawner.java
+++ b/src/main/java/net/minecraft/world/level/BaseSpawner.java
@@ -58,7 +58,7 @@ public abstract class BaseSpawner {
}
public boolean isNearPlayer(Level world, BlockPos pos) {
- return world.hasNearbyAlivePlayer((double) pos.getX() + 0.5D, (double) pos.getY() + 0.5D, (double) pos.getZ() + 0.5D, (double) this.requiredPlayerRange);
+ return world.hasNearbyAlivePlayerThatAffectsSpawning((double) pos.getX() + 0.5D, (double) pos.getY() + 0.5D, (double) pos.getZ() + 0.5D, (double) this.requiredPlayerRange); // Paper - Affects Spawning API
}
public void clientTick(Level world, BlockPos pos) {
diff --git a/src/main/java/net/minecraft/world/level/EntityGetter.java b/src/main/java/net/minecraft/world/level/EntityGetter.java
index f38f62e777d88a783e1e3b7e1a48da921cc67cf4..77ae7882a08441d9a80b50492be5e48487a2fdab 100644
--- a/src/main/java/net/minecraft/world/level/EntityGetter.java
+++ b/src/main/java/net/minecraft/world/level/EntityGetter.java
@@ -74,6 +74,11 @@ public interface EntityGetter {
}
}
+ // Paper start - Affects Spawning API
+ default @Nullable Player findNearbyPlayer(Entity entity, double maxDistance, @Nullable Predicate<Entity> predicate) {
+ return this.getNearestPlayer(entity.getX(), entity.getY(), entity.getZ(), maxDistance, predicate);
+ }
+ // Paper end - Affects Spawning API
@Nullable
default Player getNearestPlayer(double x, double y, double z, double maxDistance, @Nullable Predicate<Entity> targetPredicate) {
double d = -1.0;
@@ -103,6 +108,20 @@ public interface EntityGetter {
return this.getNearestPlayer(x, y, z, maxDistance, predicate);
}
+ // Paper start - Affects Spawning API
+ default boolean hasNearbyAlivePlayerThatAffectsSpawning(double x, double y, double z, double range) {
+ for (Player player : this.players()) {
+ if (EntitySelector.PLAYER_AFFECTS_SPAWNING.test(player)) { // combines NO_SPECTATORS and LIVING_ENTITY_STILL_ALIVE with an "affects spawning" check
+ double distanceSqr = player.distanceToSqr(x, y, z);
+ if (range < 0.0D || distanceSqr < range * range) {
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+ // Paper end - Affects Spawning API
+
default boolean hasNearbyAlivePlayer(double x, double y, double z, double range) {
for (Player player : this.players()) {
if (EntitySelector.NO_SPECTATORS.test(player) && EntitySelector.LIVING_ENTITY_STILL_ALIVE.test(player)) {
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 27909f2aa7c1e56ae4fd4fe23678d45da5fba9cf..77d62778ba5b7ff0af3234ac9bd6f6161881c028 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -2405,6 +2405,17 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
return this.getHandle().language;
}
+ // Paper start
+ public void setAffectsSpawning(boolean affects) {
+ this.getHandle().affectsSpawning = affects;
+ }
+
+ @Override
+ public boolean getAffectsSpawning() {
+ return this.getHandle().affectsSpawning;
+ }
+ // Paper end
+
@Override
public void updateCommands() {
if (this.getHandle().connection == null) return;
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