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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.
19 lines
1.3 KiB
Diff
19 lines
1.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Mariell Hoversholm <proximyst@proximyst.com>
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Date: Wed, 30 Sep 2020 22:49:14 +0200
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Subject: [PATCH] Toggle for removing existing dragon
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diff --git a/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java b/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
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index a12299604ea88c268db5065191d641eb7d52c3e3..d6deedb96583c19eeb27e671289c4edc8a9245b4 100644
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--- a/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
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+++ b/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
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@@ -211,7 +211,7 @@ public class EndDragonFight {
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this.dragonUUID = entityenderdragon.getUUID();
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EndDragonFight.LOGGER.info("Found that there's a dragon still alive ({})", entityenderdragon);
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this.dragonKilled = false;
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- if (!flag) {
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+ if (!flag && this.level.paperConfig().entities.behavior.shouldRemoveDragon) { // Paper - Toggle for removing existing dragon
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EndDragonFight.LOGGER.info("But we didn't have a portal, let's remove it.");
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entityenderdragon.discard(null); // CraftBukkit - add Bukkit remove cause
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this.dragonUUID = null;
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