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Spigot still maintains some partial implementation of "tick skipping", a practice in which the MinecraftServer.currentTick field is updated not by an increment of one per actual tick, but instead set to System.currentTimeMillis() / 50. This behaviour means that the tracked tick may "skip" a tick value in case a previous tick took more than the expected 50ms. To compensate for this in important paths, spigot/craftbukkit implements "wall-time". Instead of incrementing/decrementing ticks on block entities/entities by one for each call to their tick() method, they instead increment/decrement important values, like an ItemEntity's age or pickupDelay, by the difference of `currentTick - lastTick`, where `lastTick` is the value of `currentTick` during the last tick() call. These "fixes" however do not play nicely with minecraft's simulation distance as entities/block entities implementing the above behaviour would "catch up" their values when moving from a non-ticking chunk to a ticking one as their `lastTick` value remains stuck on the last tick in a ticking chunk and hence lead to a large "catch up" once ticked again. Paper completely removes the "tick skipping" behaviour (See patch "Further-improve-server-tick-loop"), making the above precautions completely unnecessary, which also rids paper of the previous described incompatibility with non-ticking chunks.
41 Zeilen
2.9 KiB
Diff
41 Zeilen
2.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Nassim Jahnke <nassim@njahnke.dev>
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Date: Tue, 31 Aug 2021 17:05:27 +0200
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Subject: [PATCH] Configurable feature seeds
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Co-authored-by: Thonk <30448663+ExcessiveAmountsOfZombies@users.noreply.github.com>
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diff --git a/src/main/java/co/aikar/timings/TimingsExport.java b/src/main/java/co/aikar/timings/TimingsExport.java
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index 49028463ba47e760281545c2f7597e3db8d6c453..7620c72a4c243cbeea245203ce03a97cbfa7d922 100644
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--- a/src/main/java/co/aikar/timings/TimingsExport.java
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+++ b/src/main/java/co/aikar/timings/TimingsExport.java
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@@ -286,7 +286,7 @@ public class TimingsExport extends Thread {
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JSONObject object = new JSONObject();
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for (String key : config.getKeys(false)) {
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String fullKey = (parentKey != null ? parentKey + "." + key : key);
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- if (fullKey.equals("database") || fullKey.equals("settings.bungeecord-addresses") || TimingsManager.hiddenConfigs.contains(fullKey) || key.startsWith("seed-") || key.equals("worldeditregentempworld")) {
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+ if (fullKey.equals("database") || fullKey.equals("settings.bungeecord-addresses") || TimingsManager.hiddenConfigs.contains(fullKey) || key.startsWith("seed-") || key.equals("worldeditregentempworld") || key.equals("feature-seeds")) {
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continue;
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}
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final Object val = config.get(key);
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diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java b/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java
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index 5adc1952504b26772116b55a5144b7704136edfa..c5dd3aac54aa5936da4bd9f54f0e76ecf8141d27 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java
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@@ -436,7 +436,14 @@ public abstract class ChunkGenerator {
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return (String) optional.orElseGet(placedfeature::toString);
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};
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- seededrandom.setFeatureSeed(i, l1, l);
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+ // Paper start - Configurable feature seeds; change populationSeed used in random
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+ long featurePopulationSeed = i;
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+ final long configFeatureSeed = generatoraccessseed.getMinecraftWorld().paperConfig().featureSeeds.features.getLong(placedfeature.feature());
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+ if (configFeatureSeed != -1) {
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+ featurePopulationSeed = seededrandom.setDecorationSeed(configFeatureSeed, blockposition.getX(), blockposition.getZ()); // See seededrandom.setDecorationSeed from above
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+ }
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+ seededrandom.setFeatureSeed(featurePopulationSeed, l1, l);
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+ // Paper end - Configurable feature seeds
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try {
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generatoraccessseed.setCurrentlyGenerating(supplier1);
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