mirror of
https://github.com/PaperMC/Paper.git
synced 2024-10-23 17:36:33 +02:00
c5a10665b8
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.
18 lines
883 B
Diff
18 lines
883 B
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Mariell Hoversholm <proximyst@proximyst.com>
|
|
Date: Wed, 6 Jan 2021 23:38:43 +0100
|
|
Subject: [PATCH] Empty commands shall not be dispatched
|
|
|
|
|
|
diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
|
|
index 8ca9ac8eff9d605baa878ca24e165ac5642bf160..f52e9732524b62b0fecdc48e099163f31fe367b4 100644
|
|
--- a/src/main/java/net/minecraft/commands/Commands.java
|
|
+++ b/src/main/java/net/minecraft/commands/Commands.java
|
|
@@ -286,6 +286,7 @@ public class Commands {
|
|
command = event.getCommand();
|
|
|
|
String[] args = command.split(" ");
|
|
+ if (args.length == 0) return; // Paper - empty commands shall not be dispatched
|
|
|
|
String cmd = args[0];
|
|
if (cmd.startsWith("minecraft:")) cmd = cmd.substring("minecraft:".length());
|