From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Phoenix616 <mail@moep.tv>
Date: Sat, 1 Feb 2020 16:50:39 +0100
Subject: [PATCH] Pillager patrol spawn settings and per player options

This adds config options for defining the spawn chance, spawn delay and
spawn start day as well as toggles for handling the spawn delay and
start day per player. (Based on the time played statistic)
When not per player it will use the Vanilla mechanic of one delay per
world and the world age for the start day.

diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 01bb16e35a7b737c0a8be5e37c22aa756388b268..69b3faf28d019fca90734c4d0944ead8fd97ab87 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -579,10 +579,21 @@ public class PaperWorldConfig {
     }
 
     public boolean disablePillagerPatrols = false;
+    public double patrolSpawnChance = 0.2;
+    public boolean patrolPerPlayerDelay = false;
+    public int patrolDelay = 12000;
+    public boolean patrolPerPlayerStart = false;
+    public int patrolStartDay = 5;
     private void pillagerSettings() {
         disablePillagerPatrols = getBoolean("game-mechanics.disable-pillager-patrols", disablePillagerPatrols);
+        patrolSpawnChance = getDouble("game-mechanics.pillager-patrols.spawn-chance", patrolSpawnChance);
+        patrolPerPlayerDelay = getBoolean("game-mechanics.pillager-patrols.spawn-delay.per-player", patrolPerPlayerDelay);
+        patrolDelay = getInt("game-mechanics.pillager-patrols.spawn-delay.ticks", patrolDelay);
+        patrolPerPlayerStart = getBoolean("game-mechanics.pillager-patrols.start.per-player", patrolPerPlayerStart);
+        patrolStartDay = getInt("game-mechanics.pillager-patrols.start.day", patrolStartDay);
     }
 
+
     public boolean entitiesTargetWithFollowRange = false;
     private void entitiesTargetWithFollowRange() {
         entitiesTargetWithFollowRange = getBoolean("entities-target-with-follow-range", entitiesTargetWithFollowRange);
diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
index ce3ed590f96312e18d631afee40f3821dad986ae..f39a10a1fee5baf92d661b63c4487140eff244d2 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -81,6 +81,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
     public boolean viewingCredits;
     private int containerUpdateDelay; // Paper
     public long loginTime; // Paper
+    public int patrolSpawnDelay; // Paper - per player patrol spawns
     // Paper start - cancellable death event
     public boolean queueHealthUpdatePacket = false;
     public net.minecraft.server.PacketPlayOutUpdateHealth queuedHealthUpdatePacket;
diff --git a/src/main/java/net/minecraft/server/MobSpawnerPatrol.java b/src/main/java/net/minecraft/server/MobSpawnerPatrol.java
index b1fea06d29a0c98136496d6eff81e6959cb73672..78029e10e6670936fb7dbedc7f34c5f8045fc291 100644
--- a/src/main/java/net/minecraft/server/MobSpawnerPatrol.java
+++ b/src/main/java/net/minecraft/server/MobSpawnerPatrol.java
@@ -4,13 +4,15 @@ import java.util.Random;
 
 public class MobSpawnerPatrol implements MobSpawner {
 
+    private int getSpawnDelay() { return a; } // Paper - OBFHELPER
+    private void setSpawnDelay(int spawnDelay) { this.a = spawnDelay; } // Paper - OBFHELPER
     private int a;
 
     public MobSpawnerPatrol() {}
 
     @Override
     public int a(WorldServer worldserver, boolean flag, boolean flag1) {
-        if (worldserver.paperConfig.disablePillagerPatrols) return 0; // Paper
+        if (worldserver.paperConfig.disablePillagerPatrols || worldserver.paperConfig.patrolSpawnChance == 0) return 0; // Paper
         if (!flag) {
             return 0;
         } else if (!worldserver.getGameRules().getBoolean(GameRules.DO_PATROL_SPAWNING)) {
@@ -18,23 +20,51 @@ public class MobSpawnerPatrol implements MobSpawner {
         } else {
             Random random = worldserver.random;
 
-            --this.a;
-            if (this.a > 0) {
+            // Paper start - Patrol settings
+            // Random player selection moved up for per player spawning and configuration
+            int j = worldserver.getPlayers().size();
+            if (j < 1) {
                 return 0;
+            }
+
+            EntityPlayer entityhuman = worldserver.getPlayers().get(random.nextInt(j));
+            if (entityhuman.isSpectator()) {
+                return 0;
+            }
+
+            int patrolSpawnDelay;
+            if (worldserver.paperConfig.patrolPerPlayerDelay) {
+                --entityhuman.patrolSpawnDelay;
+                patrolSpawnDelay = entityhuman.patrolSpawnDelay;
             } else {
-                this.a += 12000 + random.nextInt(1200);
-                long i = worldserver.getDayTime() / 24000L;
+                setSpawnDelay(getSpawnDelay() - 1);
+                patrolSpawnDelay = getSpawnDelay();
+            }
+
+            if (patrolSpawnDelay > 0) {
+                return 0;
+            } else {
+                long days;
+                if (worldserver.paperConfig.patrolPerPlayerStart) {
+                    days = entityhuman.getStatisticManager().getStatisticValue(StatisticList.CUSTOM.get(StatisticList.PLAY_ONE_MINUTE)) / 24000L; // PLAY_ONE_MINUTE is actually counting in ticks, a misnomer by Mojang
+                } else {
+                    days = worldserver.getDayTime() / 24000L;
+                }
+                if (worldserver.paperConfig.patrolPerPlayerDelay) {
+                    entityhuman.patrolSpawnDelay += worldserver.paperConfig.patrolDelay + random.nextInt(1200);
+                } else {
+                    setSpawnDelay(getSpawnDelay() + worldserver.paperConfig.patrolDelay + random.nextInt(1200));
+                }
 
-                if (i >= 5L && worldserver.isDay()) {
-                    if (random.nextInt(5) != 0) {
+                if (days >= worldserver.paperConfig.patrolStartDay && worldserver.isDay()) {
+                    if (random.nextDouble() >= worldserver.paperConfig.patrolSpawnChance) {
+                        // Paper end
                         return 0;
                     } else {
-                        int j = worldserver.getPlayers().size();
 
                         if (j < 1) {
                             return 0;
                         } else {
-                            EntityHuman entityhuman = (EntityHuman) worldserver.getPlayers().get(random.nextInt(j));
 
                             if (entityhuman.isSpectator()) {
                                 return 0;
diff --git a/src/main/java/net/minecraft/server/StatisticWrapper.java b/src/main/java/net/minecraft/server/StatisticWrapper.java
index 3b6034038a4841ebc980b2392c71025d9b0dde35..9c95c0ccfcdc11d8b8bc60986365e76ca0821c68 100644
--- a/src/main/java/net/minecraft/server/StatisticWrapper.java
+++ b/src/main/java/net/minecraft/server/StatisticWrapper.java
@@ -27,6 +27,7 @@ public class StatisticWrapper<T> implements Iterable<Statistic<T>> {
         return this.b.values().iterator();
     }
 
+    public Statistic<T> get(T t) { return this.b(t); }; // Paper - OBFHELPER
     public Statistic<T> b(T t0) {
         return this.a(t0, Counter.DEFAULT);
     }