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-rw-r--r--patches/server/0991-Improve-cancelling-PreCreatureSpawnEvent-with-per-pl.patch90
1 files changed, 90 insertions, 0 deletions
diff --git a/patches/server/0991-Improve-cancelling-PreCreatureSpawnEvent-with-per-pl.patch b/patches/server/0991-Improve-cancelling-PreCreatureSpawnEvent-with-per-pl.patch
new file mode 100644
index 0000000000..2c00652021
--- /dev/null
+++ b/patches/server/0991-Improve-cancelling-PreCreatureSpawnEvent-with-per-pl.patch
@@ -0,0 +1,90 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: kickash32 <[email protected]>
+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 c081842b4416d15342cbfc583ef367901dab2b7e..4d406ced4a1996b8883574ce0b785dc17370793b 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
++++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
+@@ -387,8 +387,26 @@ 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(ServerPlayer entityPlayer, net.minecraft.world.entity.MobCategory mobCategory) {
+- return entityPlayer.mobCounts[mobCategory.ordinal()];
++ return entityPlayer.mobCounts[mobCategory.ordinal()] + entityPlayer.mobBackoffCounts[mobCategory.ordinal()]; // Paper - per player mob count backoff
+ }
+ // Paper end
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+index 8907396dc21dbfb31ff15286a7daa2110f6e34c0..8ef4b33c09c64c417e9b0d259550d7f78d1cec14 100644
+--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
++++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+@@ -532,7 +532,17 @@ 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(l, 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 18518aaa8fad4130b7c89e8a36ed5434258d14f6..7838c7e051b1c4966e5a10289577d60a58ab16dd 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
++++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+@@ -253,6 +253,7 @@ 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 - mob spawning rework
++ 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 d08c7b0b52065980f1f13c5533ff6355028322db..3cdddda9c0618e95288b81b975d499c8dd30c05f 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
+ PreSpawnStatus doSpawning = isValidSpawnPostitionForType(world, group, structuremanager, chunkgenerator, biomesettingsmobs_c, blockposition_mutableblockposition, d2);
++ // Paper start - 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 - mob count backoff
+ if (doSpawning == PreSpawnStatus.ABORT) {
+ return j; // Paper
+ }