From b04843c61db61e9940626f7cdb1978546ff8e601 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Fri, 18 Mar 2016 15:12:22 -0400
Subject: [PATCH] Configurable Non Player Arrow Despawn Rate

Can set a much shorter despawn rate for arrows that players can not pick up.

diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 4474104..351f0e8 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -2,17 +2,21 @@ package com.destroystokyo.paper;
 
 import java.util.List;
 
+import net.minecraft.server.World;
 import org.bukkit.Bukkit;
 import org.bukkit.configuration.file.YamlConfiguration;
+import org.spigotmc.SpigotWorldConfig;
 
 public class PaperWorldConfig {
 
     private final String worldName;
+    private final SpigotWorldConfig spigotConfig;
     private final YamlConfiguration config;
     private boolean verbose;
 
-    public PaperWorldConfig(String worldName) {
+    public PaperWorldConfig(String worldName, SpigotWorldConfig spigotConfig) {
         this.worldName = worldName;
+        this.spigotConfig = spigotConfig;
         this.config = PaperConfig.config;
         init();
     }
@@ -284,4 +288,13 @@ public class PaperWorldConfig {
     private void allowLeashingUndeadHorse() {
         allowLeashingUndeadHorse = getBoolean("allow-leashing-undead-horse", false);
     }
+
+    public int nonPlayerArrowDespawnRate = -1;
+    private void nonPlayerArrowDespawnRate() {
+        nonPlayerArrowDespawnRate = getInt("non-player-arrow-despawn-rate", -1);
+        if (nonPlayerArrowDespawnRate == -1) {
+            nonPlayerArrowDespawnRate = spigotConfig.arrowDespawnRate;
+        }
+        log("Non Player Arrow Despawn Rate: " + nonPlayerArrowDespawnRate);
+    }
 }
diff --git a/src/main/java/net/minecraft/server/EntityArrow.java b/src/main/java/net/minecraft/server/EntityArrow.java
index 5ccdb88..e5f1b71 100644
--- a/src/main/java/net/minecraft/server/EntityArrow.java
+++ b/src/main/java/net/minecraft/server/EntityArrow.java
@@ -144,7 +144,7 @@ public abstract class EntityArrow extends Entity implements IProjectile {
 
             if (block == this.au && i == this.av) {
                 ++this.aw;
-                if (this.aw >= world.spigotConfig.arrowDespawnRate) { // Spigot - First int after shooter
+                if (this.aw >= (fromPlayer != PickupStatus.DISALLOWED ? world.spigotConfig.arrowDespawnRate : world.paperConfig.nonPlayerArrowDespawnRate)) { // Spigot - First int after shooter
                     this.die();
                 }
             } else {
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index d569f3b..6ed328a 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -162,7 +162,7 @@ public abstract class World implements IBlockAccess {
 
     protected World(IDataManager idatamanager, WorldData worlddata, WorldProvider worldprovider, MethodProfiler methodprofiler, boolean flag, ChunkGenerator gen, org.bukkit.World.Environment env) {
         this.spigotConfig = new org.spigotmc.SpigotWorldConfig( worlddata.getName() ); // Spigot
-        this.paperConfig = new com.destroystokyo.paper.PaperWorldConfig( worlddata.getName() ); // Paper
+        this.paperConfig = new com.destroystokyo.paper.PaperWorldConfig( worlddata.getName(), this.spigotConfig); // Paper
         this.generator = gen;
         this.world = new CraftWorld((WorldServer) this, gen, env);
         this.ticksPerAnimalSpawns = this.getServer().getTicksPerAnimalSpawns(); // CraftBukkit
-- 
2.7.4