Paper/patches/server/0450-Additional-Block-Material-API.patch
Bjarne Koll c5a10665b8
Remove wall-time / unused skip tick protection (#11412)
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.
2024-09-19 16:36:07 +02:00

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1.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 30 Dec 2020 19:43:01 -0500
Subject: [PATCH] Additional Block Material API
Faster version for isSolid() that utilizes NMS's state for isSolid instead of the slower
process to do this in the Bukkit API
Adds API for buildable, replaceable, burnable too.
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
index aa644231425b9622437538b5c092d4064a40cced..98e87dc15e2ed23f6897ba6359846ff5bc32b655 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
@@ -440,6 +440,25 @@ public class CraftBlock implements Block {
return this.getNMS().liquid();
}
+ // Paper start
+ @Override
+ public boolean isBuildable() {
+ return this.getNMS().isSolid(); // This is in fact isSolid, despite the fact that isSolid below returns blocksMotion
+ }
+ @Override
+ public boolean isBurnable() {
+ return this.getNMS().ignitedByLava();
+ }
+ @Override
+ public boolean isReplaceable() {
+ return this.getNMS().canBeReplaced();
+ }
+ @Override
+ public boolean isSolid() {
+ return this.getNMS().blocksMotion();
+ }
+ // Paper end
+
@Override
public PistonMoveReaction getPistonMoveReaction() {
return PistonMoveReaction.getById(this.getNMS().getPistonPushReaction().ordinal());