1 files changed, 87 insertions, 0 deletions
diff --git a/patches/server/0440-Add-Wandering-Trader-spawn-rate-config-options.patch b/patches/server/0440-Add-Wandering-Trader-spawn-rate-config-options.patch
new file mode 100644
index 0000000000..98525387d7
--- /dev/null
+++ b/patches/server/0440-Add-Wandering-Trader-spawn-rate-config-options.patch
@@ -0,0 +1,87 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jason Penilla <[email protected]>
+Date: Thu, 20 Aug 2020 11:20:12 -0700
+Subject: [PATCH] Add Wandering Trader spawn rate config options
+
+Adds config options for modifying the spawn rates of Wandering Traders.
+These values are all easy to understand and configure after a quick read of this
+page on the Minecraft wiki: https://minecraft.wiki/wiki/Wandering_Trader#Spawning
+Usages of the vanilla WanderingTraderSpawnDelay and WanderingTraderSpawnChance values
+in IWorldServerData are removed as they were only used in certain places, with hardcoded
+values used in other places.
+
+diff --git a/src/main/java/net/minecraft/world/entity/npc/WanderingTraderSpawner.java b/src/main/java/net/minecraft/world/entity/npc/WanderingTraderSpawner.java
+index 4b7e9bc8aa253d0eb12a2195416c618cccdc8690..d5d27b0d352ca3fd57a26605cb35c499e88b57fc 100644
+--- a/src/main/java/net/minecraft/world/entity/npc/WanderingTraderSpawner.java
++++ b/src/main/java/net/minecraft/world/entity/npc/WanderingTraderSpawner.java
+@@ -40,43 +40,53 @@ public class WanderingTraderSpawner implements CustomSpawner {
+ 
+     public WanderingTraderSpawner(ServerLevelData properties) {
+         this.serverLevelData = properties;
+-        this.tickDelay = 1200;
+-        this.spawnDelay = properties.getWanderingTraderSpawnDelay();
+-        this.spawnChance = properties.getWanderingTraderSpawnChance();
+-        if (this.spawnDelay == 0 && this.spawnChance == 0) {
+-            this.spawnDelay = 24000;
+-            properties.setWanderingTraderSpawnDelay(this.spawnDelay);
+-            this.spawnChance = 25;
+-            properties.setWanderingTraderSpawnChance(this.spawnChance);
+-        }
++        // Paper start - Add Wandering Trader spawn rate config options
++        this.tickDelay = Integer.MIN_VALUE;
++        //this.spawnDelay = properties.getWanderingTraderSpawnDelay(); // Paper - This value is read from the world file only for the first spawn, after which vanilla uses a hardcoded value
++        //this.spawnChance = properties.getWanderingTraderSpawnChance(); // Paper - This value is read from the world file only for the first spawn, after which vanilla uses a hardcoded value
++        //if (this.spawnDelay == 0 && this.spawnChance == 0) {
++        //    this.spawnDelay = 24000;
++        //    properties.setWanderingTraderSpawnDelay(this.spawnDelay);
++        //    this.spawnChance = 25;
++        //    properties.setWanderingTraderSpawnChance(this.spawnChance);
++        //}
++        // Paper end - Add Wandering Trader spawn rate config options
+ 
+     }
+ 
+     @Override
+     public int tick(ServerLevel world, boolean spawnMonsters, boolean spawnAnimals) {
++        // Paper start - Add Wandering Trader spawn rate config options
++        if (this.tickDelay == Integer.MIN_VALUE) {
++            this.tickDelay = world.paperConfig().entities.spawning.wanderingTrader.spawnMinuteLength;
++            this.spawnDelay = world.paperConfig().entities.spawning.wanderingTrader.spawnDayLength;
++            this.spawnChance = world.paperConfig().entities.spawning.wanderingTrader.spawnChanceMin;
++        }
+         if (!world.getGameRules().getBoolean(GameRules.RULE_DO_TRADER_SPAWNING)) {
+             return 0;
+-        } else if (--this.tickDelay > 0) {
++        } else if (this.tickDelay - 1 > 0) {
++            this.tickDelay = this.tickDelay - 1;
+             return 0;
+         } else {
+-            this.tickDelay = 1200;
+-            this.spawnDelay -= 1200;
+-            this.serverLevelData.setWanderingTraderSpawnDelay(this.spawnDelay);
++            this.tickDelay = world.paperConfig().entities.spawning.wanderingTrader.spawnMinuteLength;
++            this.spawnDelay = this.spawnDelay - world.paperConfig().entities.spawning.wanderingTrader.spawnMinuteLength;
++            //this.serverLevelData.setWanderingTraderSpawnDelay(this.spawnDelay); // Paper - We don't need to save this value to disk if it gets set back to a hardcoded value anyways
+             if (this.spawnDelay > 0) {
+                 return 0;
+             } else {
+-                this.spawnDelay = 24000;
++                this.spawnDelay = world.paperConfig().entities.spawning.wanderingTrader.spawnDayLength;
+                 if (!world.getGameRules().getBoolean(GameRules.RULE_DOMOBSPAWNING)) {
+                     return 0;
+                 } else {
+                     int i = this.spawnChance;
+ 
+-                    this.spawnChance = Mth.clamp(this.spawnChance + 25, 25, 75);
+-                    this.serverLevelData.setWanderingTraderSpawnChance(this.spawnChance);
++                    // this.serverLevelData.setWanderingTraderSpawnChance(this.spawnChance); // Paper - We don't need to save this value to disk if it gets set back to a hardcoded value anyways
++                    this.spawnChance = Mth.clamp(i + world.paperConfig().entities.spawning.wanderingTrader.spawnChanceFailureIncrement, world.paperConfig().entities.spawning.wanderingTrader.spawnChanceMin, world.paperConfig().entities.spawning.wanderingTrader.spawnChanceMax);
+                     if (this.random.nextInt(100) > i) {
+                         return 0;
+                     } else if (this.spawn(world)) {
+-                        this.spawnChance = 25;
++                        this.spawnChance = world.paperConfig().entities.spawning.wanderingTrader.spawnChanceMin;
++                        // Paper end - Add Wandering Trader spawn rate config options
+                         return 1;
+                     } else {
+                         return 0;