mirror of
https://github.com/PaperMC/Paper.git
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f17519338b
* Expose server build information * squash patches * final tweaks --------- Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com> Co-authored-by: masmc05 <masmc05@gmail.com>
168 lines
13 KiB
Diff
168 lines
13 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sun, 14 Jan 2018 17:01:31 -0500
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Subject: [PATCH] PreCreatureSpawnEvent
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Adds an event to fire before an Entity is created, so that plugins that need to cancel
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CreatureSpawnEvent can do so from this event instead.
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Cancelling CreatureSpawnEvent rapidly causes a lot of garbage collection and CPU waste
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as it's done after the Entity object has been fully created.
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Mob Limiting plugins and blanket "ban this type of monster" plugins should use this event
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instead and save a lot of server resources.
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See: https://github.com/PaperMC/Paper/issues/917
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diff --git a/src/main/java/net/minecraft/util/SpawnUtil.java b/src/main/java/net/minecraft/util/SpawnUtil.java
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index 3f2cad4c9c0400bf93932cb7f7219c2185fc7370..5c8e36ea8287029b1789719c687bac1a2c4c3a69 100644
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--- a/src/main/java/net/minecraft/util/SpawnUtil.java
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+++ b/src/main/java/net/minecraft/util/SpawnUtil.java
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@@ -21,10 +21,10 @@ public class SpawnUtil {
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public static <T extends Mob> Optional<T> trySpawnMob(EntityType<T> entityType, MobSpawnType reason, ServerLevel world, BlockPos pos, int tries, int horizontalRange, int verticalRange, SpawnUtil.Strategy requirements) {
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// CraftBukkit start
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- return SpawnUtil.trySpawnMob(entityType, reason, world, pos, tries, horizontalRange, verticalRange, requirements, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.DEFAULT);
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+ return SpawnUtil.trySpawnMob(entityType, reason, world, pos, tries, horizontalRange, verticalRange, requirements, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.DEFAULT, null); // Paper
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}
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- public static <T extends Mob> Optional<T> trySpawnMob(EntityType<T> entitytypes, MobSpawnType enummobspawn, ServerLevel worldserver, BlockPos blockposition, int i, int j, int k, SpawnUtil.Strategy spawnutil_a, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason reason) {
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+ public static <T extends Mob> Optional<T> trySpawnMob(EntityType<T> entitytypes, MobSpawnType enummobspawn, ServerLevel worldserver, BlockPos blockposition, int i, int j, int k, SpawnUtil.Strategy spawnutil_a, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason reason, @javax.annotation.Nullable Runnable onAbort) { // Paper
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// CraftBukkit end
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BlockPos.MutableBlockPos blockposition_mutableblockposition = blockposition.mutable();
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@@ -34,6 +34,22 @@ public class SpawnUtil {
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blockposition_mutableblockposition.setWithOffset(blockposition, i1, k, j1);
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if (worldserver.getWorldBorder().isWithinBounds((BlockPos) blockposition_mutableblockposition) && SpawnUtil.moveToPossibleSpawnPosition(worldserver, k, blockposition_mutableblockposition, spawnutil_a)) {
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+ // Paper start - PreCreatureSpawnEvent
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+ com.destroystokyo.paper.event.entity.PreCreatureSpawnEvent event = new com.destroystokyo.paper.event.entity.PreCreatureSpawnEvent(
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+ io.papermc.paper.util.MCUtil.toLocation(worldserver, blockposition),
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+ org.bukkit.craftbukkit.entity.CraftEntityType.minecraftToBukkit(entitytypes),
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+ reason
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+ );
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+ if (!event.callEvent()) {
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+ if (event.shouldAbortSpawn()) {
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+ if (onAbort != null) {
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+ onAbort.run();
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+ }
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+ return Optional.empty();
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+ }
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+ break;
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+ }
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+ // Paper end - PreCreatureSpawnEvent
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T t0 = entitytypes.create(worldserver, (Consumer<T>) null, blockposition_mutableblockposition, enummobspawn, false, false); // CraftBukkit - decompile error
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if (t0 != null) {
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diff --git a/src/main/java/net/minecraft/world/entity/EntityType.java b/src/main/java/net/minecraft/world/entity/EntityType.java
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index 606dbc398745b689f957e62ebd9eaa56a67a61f3..7df13199eacc8dec0ba8fbf10ea507b0d1c5f591 100644
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--- a/src/main/java/net/minecraft/world/entity/EntityType.java
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+++ b/src/main/java/net/minecraft/world/entity/EntityType.java
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@@ -430,6 +430,16 @@ public class EntityType<T extends Entity> implements FeatureElement, EntityTypeT
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@Nullable
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public T spawn(ServerLevel worldserver, @Nullable Consumer<T> consumer, BlockPos blockposition, MobSpawnType enummobspawn, boolean flag, boolean flag1, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason spawnReason) {
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// CraftBukkit end
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+ // Paper start - PreCreatureSpawnEvent
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+ com.destroystokyo.paper.event.entity.PreCreatureSpawnEvent event = new com.destroystokyo.paper.event.entity.PreCreatureSpawnEvent(
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+ io.papermc.paper.util.MCUtil.toLocation(worldserver, blockposition),
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+ org.bukkit.craftbukkit.entity.CraftEntityType.minecraftToBukkit(this),
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+ spawnReason
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+ );
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+ if (!event.callEvent()) {
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+ return null;
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+ }
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+ // Paper end - PreCreatureSpawnEvent
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T t0 = this.create(worldserver, consumer, blockposition, enummobspawn, flag, flag1);
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if (t0 != null) {
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diff --git a/src/main/java/net/minecraft/world/entity/npc/Villager.java b/src/main/java/net/minecraft/world/entity/npc/Villager.java
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index d1c3f5d076a3d560d02553d6a33e5890d0c2bfc7..4d7f95d2bd415bacccee145bfc47f2b480530c11 100644
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--- a/src/main/java/net/minecraft/world/entity/npc/Villager.java
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+++ b/src/main/java/net/minecraft/world/entity/npc/Villager.java
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@@ -968,7 +968,7 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
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}).limit(5L).collect(Collectors.toList());
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if (list1.size() >= requiredCount) {
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- if (!SpawnUtil.trySpawnMob(EntityType.IRON_GOLEM, MobSpawnType.MOB_SUMMONED, world, this.blockPosition(), 10, 8, 6, SpawnUtil.Strategy.LEGACY_IRON_GOLEM, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.VILLAGE_DEFENSE).isEmpty()) { // CraftBukkit
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+ if (SpawnUtil.trySpawnMob(EntityType.IRON_GOLEM, MobSpawnType.MOB_SUMMONED, world, this.blockPosition(), 10, 8, 6, SpawnUtil.Strategy.LEGACY_IRON_GOLEM, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.VILLAGE_DEFENSE, () -> {GolemSensor.golemDetected(this);}).isPresent()) { // CraftBukkit // Paper - Set Golem Last Seen to stop it from spawning another one
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list.forEach(GolemSensor::golemDetected);
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}
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}
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diff --git a/src/main/java/net/minecraft/world/level/BaseSpawner.java b/src/main/java/net/minecraft/world/level/BaseSpawner.java
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index 31fe2faf9137ac8b1acca9a5ffc5bbcc8aab16c1..d13abdcc7a54bdecf853c883911ef535733610b4 100644
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--- a/src/main/java/net/minecraft/world/level/BaseSpawner.java
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+++ b/src/main/java/net/minecraft/world/level/BaseSpawner.java
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@@ -132,6 +132,20 @@ public abstract class BaseSpawner {
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} else if (!SpawnPlacements.checkSpawnRules((EntityType) optional.get(), world, MobSpawnType.SPAWNER, blockposition1, world.getRandom())) {
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continue;
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}
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+ // Paper start - PreCreatureSpawnEvent
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+ com.destroystokyo.paper.event.entity.PreCreatureSpawnEvent event = new com.destroystokyo.paper.event.entity.PreCreatureSpawnEvent(
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+ io.papermc.paper.util.MCUtil.toLocation(world, d0, d1, d2),
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+ org.bukkit.craftbukkit.entity.CraftEntityType.minecraftToBukkit(optional.get()),
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+ org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER
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+ );
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+ if (!event.callEvent()) {
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+ flag = true;
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+ if (event.shouldAbortSpawn()) {
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+ break;
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+ }
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+ continue;
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+ }
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+ // Paper end - PreCreatureSpawnEvent
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Entity entity = EntityType.loadEntityRecursive(nbttagcompound, world, (entity1) -> {
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entity1.moveTo(d0, d1, d2, entity1.getYRot(), entity1.getXRot());
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diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
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index 6324689f52363f19501143c1649f0885684cb796..bce78beaadbfd0e400457bd14bcf6538be702879 100644
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--- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java
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+++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
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@@ -208,7 +208,13 @@ public final class NaturalSpawner {
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j1 = biomesettingsmobs_c.minCount + world.random.nextInt(1 + biomesettingsmobs_c.maxCount - biomesettingsmobs_c.minCount);
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}
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- if (NaturalSpawner.isValidSpawnPostitionForType(world, group, structuremanager, chunkgenerator, biomesettingsmobs_c, blockposition_mutableblockposition, d2) && checker.test(biomesettingsmobs_c.type, blockposition_mutableblockposition, chunk)) {
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+ // Paper start - PreCreatureSpawnEvent
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+ PreSpawnStatus doSpawning = isValidSpawnPostitionForType(world, group, structuremanager, chunkgenerator, biomesettingsmobs_c, blockposition_mutableblockposition, d2);
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+ if (doSpawning == PreSpawnStatus.ABORT) {
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+ return;
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+ }
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+ if (doSpawning == PreSpawnStatus.SUCCESS && checker.test(biomesettingsmobs_c.type, blockposition_mutableblockposition, chunk)) {
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+ // Paper end - PreCreatureSpawnEvent
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Mob entityinsentient = NaturalSpawner.getMobForSpawn(world, biomesettingsmobs_c.type);
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if (entityinsentient == null) {
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@@ -256,10 +262,31 @@ public final class NaturalSpawner {
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return squaredDistance <= 576.0D ? false : (world.getSharedSpawnPos().closerToCenterThan(new Vec3((double) pos.getX() + 0.5D, (double) pos.getY(), (double) pos.getZ() + 0.5D), 24.0D) ? false : Objects.equals(new ChunkPos(pos), chunk.getPos()) || world.isNaturalSpawningAllowed((BlockPos) pos));
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}
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- private static boolean isValidSpawnPostitionForType(ServerLevel world, MobCategory group, StructureManager structureAccessor, ChunkGenerator chunkGenerator, MobSpawnSettings.SpawnerData spawnEntry, BlockPos.MutableBlockPos pos, double squaredDistance) {
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+ // Paper start - PreCreatureSpawnEvent
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+ private enum PreSpawnStatus {
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+ FAIL,
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+ SUCCESS,
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+ CANCELLED,
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+ ABORT
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+ }
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+ private static PreSpawnStatus isValidSpawnPostitionForType(ServerLevel world, MobCategory group, StructureManager structureAccessor, ChunkGenerator chunkGenerator, MobSpawnSettings.SpawnerData spawnEntry, BlockPos.MutableBlockPos pos, double squaredDistance) {
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+ // Paper end - PreCreatureSpawnEvent
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EntityType<?> entitytypes = spawnEntry.type;
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- return entitytypes.getCategory() == MobCategory.MISC ? false : (!entitytypes.canSpawnFarFromPlayer() && squaredDistance > (double) (entitytypes.getCategory().getDespawnDistance() * entitytypes.getCategory().getDespawnDistance()) ? false : (entitytypes.canSummon() && NaturalSpawner.canSpawnMobAt(world, structureAccessor, chunkGenerator, group, spawnEntry, pos) ? (!SpawnPlacements.isSpawnPositionOk(entitytypes, world, pos) ? false : (!SpawnPlacements.checkSpawnRules(entitytypes, world, MobSpawnType.NATURAL, pos, world.random) ? false : world.noCollision(entitytypes.getSpawnAABB((double) pos.getX() + 0.5D, (double) pos.getY(), (double) pos.getZ() + 0.5D)))) : false));
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+ // Paper start - PreCreatureSpawnEvent
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+ com.destroystokyo.paper.event.entity.PreCreatureSpawnEvent event = new com.destroystokyo.paper.event.entity.PreCreatureSpawnEvent(
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+ io.papermc.paper.util.MCUtil.toLocation(world, pos),
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+ org.bukkit.craftbukkit.entity.CraftEntityType.minecraftToBukkit(entitytypes), SpawnReason.NATURAL
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+ );
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+ if (!event.callEvent()) {
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+ if (event.shouldAbortSpawn()) {
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+ return PreSpawnStatus.ABORT;
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+ }
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+ return PreSpawnStatus.CANCELLED;
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+ }
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+ // Paper end - PreCreatureSpawnEvent
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+
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+ return entitytypes.getCategory() == MobCategory.MISC ? PreSpawnStatus.FAIL : (!entitytypes.canSpawnFarFromPlayer() && squaredDistance > (double) (entitytypes.getCategory().getDespawnDistance() * entitytypes.getCategory().getDespawnDistance()) ? PreSpawnStatus.FAIL : (entitytypes.canSummon() && NaturalSpawner.canSpawnMobAt(world, structureAccessor, chunkGenerator, group, spawnEntry, pos) ? (!SpawnPlacements.isSpawnPositionOk(entitytypes, world, pos) ? PreSpawnStatus.FAIL : (!SpawnPlacements.checkSpawnRules(entitytypes, world, MobSpawnType.NATURAL, pos, world.random) ? PreSpawnStatus.FAIL : world.noCollision(entitytypes.getSpawnAABB((double) pos.getX() + 0.5D, (double) pos.getY(), (double) pos.getZ() + 0.5D)) ? PreSpawnStatus.SUCCESS : PreSpawnStatus.FAIL)) : PreSpawnStatus.FAIL)); // Paper - PreCreatureSpawnEvent
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}
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@Nullable
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