Paper/patches/server/0590-Add-hasCollision-methods-to-various-places.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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2.4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Thu, 4 Nov 2021 11:50:40 -0700
Subject: [PATCH] Add hasCollision methods to various places
== AT ==
public net.minecraft.world.level.block.state.BlockBehaviour hasCollision
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
index ce297420f695404356655b1df2847a32fb98ec59..068b3735b6c50a7a2053c7dc39856f728fb7218a 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
@@ -457,6 +457,11 @@ public class CraftBlock implements Block {
public boolean isSolid() {
return this.getNMS().blocksMotion();
}
+
+ @Override
+ public boolean isCollidable() {
+ return getNMS().getBlock().hasCollision;
+ }
// Paper end
@Override
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
index 1002123cd0c6f57cecc4e80f5f21cc6ff5886d37..e96023b71845526383288917e8d7c5759a4c0e9b 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
@@ -341,4 +341,11 @@ public class CraftBlockState implements BlockState {
public BlockState copy(Location location) {
return new CraftBlockState(this, location);
}
+
+ // Paper start
+ @Override
+ public boolean isCollidable() {
+ return this.data.getBlock().hasCollision;
+ }
+ // Paper end
}
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockType.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockType.java
index 2d8a509446c0ed0d7358f10f67ef29c4df683696..785d3fe4929e008d4150f3ecab258fd5b6d7cdaf 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockType.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockType.java
@@ -241,4 +241,11 @@ public class CraftBlockType<B extends BlockData> implements BlockType.Typed<B>,
return this.block.getDescriptionId();
}
// Paper end - add Translatable
+
+ // Paper start - hasCollision API
+ @Override
+ public boolean hasCollision() {
+ return this.block.hasCollision;
+ }
+ // Paper end - hasCollision API
}