Paper/patches/server/0554-Add-Wandering-Trader-spawn-rate-config-options.patch

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Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
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.gamepedia.com/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/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 45e65d1c56b693d8f7c5c12da7774849c737aa96..935bb237f8ecd63ca4cec64a7c7a341c9d3358e5 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -61,6 +61,19 @@ public class PaperWorldConfig {
}
}
+ public int wanderingTraderSpawnMinuteTicks = 1200;
+ public int wanderingTraderSpawnDayTicks = 24000;
+ public int wanderingTraderSpawnChanceFailureIncrement = 25;
+ public int wanderingTraderSpawnChanceMin = 25;
+ public int wanderingTraderSpawnChanceMax = 75;
+ private void wanderingTraderSettings() {
+ wanderingTraderSpawnMinuteTicks = getInt("wandering-trader.spawn-minute-length", wanderingTraderSpawnMinuteTicks);
+ wanderingTraderSpawnDayTicks = getInt("wandering-trader.spawn-day-length", wanderingTraderSpawnDayTicks);
+ wanderingTraderSpawnChanceFailureIncrement = getInt("wandering-trader.spawn-chance-failure-increment", wanderingTraderSpawnChanceFailureIncrement);
+ wanderingTraderSpawnChanceMin = getInt("wandering-trader.spawn-chance-min", wanderingTraderSpawnChanceMin);
+ wanderingTraderSpawnChanceMax = getInt("wandering-trader.spawn-chance-max", wanderingTraderSpawnChanceMax);
+ }
+
public short keepLoadedRange;
private void keepLoadedRange() {
keepLoadedRange = (short) (getInt("keep-spawn-loaded-range", Math.min(spigotConfig.viewDistance, 10)) * 16);
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 12aa0fd5b6bada9820c3a08eee47c870f9c183cb..60f08ecd0034e8ef2965b54b3abccce582d0ca54 100644
--- a/src/main/java/net/minecraft/world/entity/npc/WanderingTraderSpawner.java
+++ b/src/main/java/net/minecraft/world/entity/npc/WanderingTraderSpawner.java
@@ -43,43 +43,53 @@ 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
+ 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
}
@Override
public int tick(ServerLevel world, boolean spawnMonsters, boolean spawnAnimals) {
+ // Paper start
+ if (this.tickDelay == Integer.MIN_VALUE) {
+ this.tickDelay = world.paperConfig.wanderingTraderSpawnMinuteTicks;
+ this.spawnDelay = world.paperConfig.wanderingTraderSpawnDayTicks;
+ this.spawnChance = world.paperConfig.wanderingTraderSpawnChanceMin;
+ }
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.wanderingTraderSpawnMinuteTicks;
+ this.spawnDelay = this.spawnDelay - world.paperConfig.wanderingTraderSpawnMinuteTicks;
+ //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.wanderingTraderSpawnDayTicks;
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.spawnChance = Mth.clamp(i + world.paperConfig.wanderingTraderSpawnChanceFailureIncrement, world.paperConfig.wanderingTraderSpawnChanceMin, world.paperConfig.wanderingTraderSpawnChanceMax);
+ //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
if (this.random.nextInt(100) > i) {
return 0;
} else if (this.spawn(world)) {
- this.spawnChance = 25;
+ this.spawnChance = world.paperConfig.wanderingTraderSpawnChanceMin;
+ // Paper end
return 1;
} else {
return 0;