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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: kickash32 <kickash32@gmail.com>
Date: Mon, 5 Apr 2021 01:42:35 -0400
Subject: [PATCH] Improve cancelling PreCreatureSpawnEvent with per player mob
spawns
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index b4611b21beb31b109cb5ecfa5aa03ac15e16335a..e69e68ae3be2760c079338793f33c27f59ebf7cf 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -306,8 +306,25 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
}
}
+ // Paper start - per player mob count backoff
+ public void updateFailurePlayerMobTypeMap(int chunkX, int chunkZ, net.minecraft.world.entity.MobCategory mobCategory) {
+ if (!this.level.paperConfig().entities.spawning.perPlayerMobSpawns) {
+ return;
+ }
+ int idx = mobCategory.ordinal();
+ final com.destroystokyo.paper.util.maplist.ReferenceList<ServerPlayer> inRange =
+ this.getNearbyPlayers().getPlayersByChunk(chunkX, chunkZ, io.papermc.paper.util.player.NearbyPlayers.NearbyMapType.TICK_VIEW_DISTANCE);
+ if (inRange == null) {
+ return;
+ }
+ final Object[] backingSet = inRange.getRawData();
+ for (int i = 0, len = inRange.size(); i < len; i++) {
+ ++((ServerPlayer)backingSet[i]).mobBackoffCounts[idx];
+ }
+ }
+ // Paper end - per player mob count backoff
public int getMobCountNear(final ServerPlayer player, final net.minecraft.world.entity.MobCategory mobCategory) {
- return player.mobCounts[mobCategory.ordinal()];
+ return player.mobCounts[mobCategory.ordinal()] + player.mobBackoffCounts[mobCategory.ordinal()]; // Paper - per player mob count backoff
}
// Paper end - Optional per player mob spawns
diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
index e448f7088cc7691bd2125869feb7422a6b749429..0fad2a160878d4883c88b889bd6ba00b144a2dcd 100644
--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
@@ -537,7 +537,17 @@ public class ServerChunkCache extends ChunkSource {
if ((this.spawnFriendlies || this.spawnEnemies) && this.level.paperConfig().entities.spawning.perPlayerMobSpawns) { // don't count mobs when animals and monsters are disabled
// re-set mob counts
for (ServerPlayer player : this.level.players) {
- Arrays.fill(player.mobCounts, 0);
+ // Paper start - per player mob spawning backoff
+ for (int ii = 0; ii < ServerPlayer.MOBCATEGORY_TOTAL_ENUMS; ii++) {
+ player.mobCounts[ii] = 0;
+
+ int newBackoff = player.mobBackoffCounts[ii] - 1; // TODO make configurable bleed // TODO use nonlinear algorithm?
+ if (newBackoff < 0) {
+ newBackoff = 0;
+ }
+ player.mobBackoffCounts[ii] = newBackoff;
+ }
+ // Paper end - per player mob spawning backoff
}
spawnercreature_d = NaturalSpawner.createState(naturalSpawnChunkCount, this.level.getAllEntities(), this::getFullChunk, null, true);
} else {
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 4bfc12a50a262f49c0262b06b39faa8116b3807f..803ed79940af00b49aec4b1414ddfacb57ff4f3f 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -260,6 +260,7 @@ public class ServerPlayer extends Player {
public static final int MOBCATEGORY_TOTAL_ENUMS = net.minecraft.world.entity.MobCategory.values().length;
public final int[] mobCounts = new int[MOBCATEGORY_TOTAL_ENUMS]; // Paper
// Paper end - Optional per player mob spawns
+ public final int[] mobBackoffCounts = new int[MOBCATEGORY_TOTAL_ENUMS]; // Paper - per player mob count backoff
// CraftBukkit start
public String displayName;
diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
index da9f091e1c2dd8b025e806f53a4708b623ee4cd8..17e9f3a30e287faf210e08dc7eb177a70f049f43 100644
--- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
@@ -277,6 +277,11 @@ public final class NaturalSpawner {
// Paper start - PreCreatureSpawnEvent
PreSpawnStatus doSpawning = isValidSpawnPostitionForType(world, group, structuremanager, chunkgenerator, biomesettingsmobs_c, blockposition_mutableblockposition, d2);
+ // Paper start - per player mob count backoff
+ if (doSpawning == PreSpawnStatus.ABORT || doSpawning == PreSpawnStatus.CANCELLED) {
+ world.getChunkSource().chunkMap.updateFailurePlayerMobTypeMap(blockposition_mutableblockposition.getX() >> 4, blockposition_mutableblockposition.getZ() >> 4, group);
+ }
+ // Paper end - per player mob count backoff
if (doSpawning == PreSpawnStatus.ABORT) {
return j; // Paper - Optional per player mob spawns
}
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