Paper/patches/server/0490-Add-worldborder-events.patch
Spottedleaf 8c5b837e05 Rework async chunk api implementation
Firstly, the old methods all routed to the CompletableFuture method.
However, the CF method could not guarantee that if the caller
was off-main that the future would be "completed" on-main. Since
the callback methods used the CF one, this meant that the callback
methods did not guarantee that the callbacks were to be called on
the main thread.

Now, all methods route to getChunkAtAsync(x, z, gen, urgent, cb)
so that the methods with the callback are guaranteed to invoke
the callback on the main thread. The CF behavior remains unchanged;
it may still appear to complete on main if invoked off-main.

Secondly, remove the scheduleOnMain invocation in the async
chunk completion. This unnecessarily delays the callback
by 1 tick.

Thirdly, add getChunksAtAsync(minX, minZ, maxX, maxZ, ...) which
will load chunks within an area. This method is provided as a helper
as keeping all chunks loaded within an area can be complicated to
implement for plugins (due to the lacking ticket API), and is
already implemented internally anyways.

Fourthly, remove the ticket addition that occured with getChunkAt
and getChunkAtAsync. The ticket addition may delay the unloading
of the chunk unnecessarily. It also fixes a very rare timing bug
where the future/callback would be completed after the chunk
unloads.
2024-11-18 23:00:59 -08:00

73 lines
4.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Mon, 4 Jan 2021 22:40:34 -0800
Subject: [PATCH] Add worldborder events
diff --git a/src/main/java/net/minecraft/world/level/border/WorldBorder.java b/src/main/java/net/minecraft/world/level/border/WorldBorder.java
index b50090df116697a12f5498d65dd2e5d6d5297fb5..807a097a7b6399f24ede741f94ce98eb67e55add 100644
--- a/src/main/java/net/minecraft/world/level/border/WorldBorder.java
+++ b/src/main/java/net/minecraft/world/level/border/WorldBorder.java
@@ -148,6 +148,14 @@ public class WorldBorder {
}
public void setCenter(double x, double z) {
+ // Paper start - Add worldborder events
+ if (this.world != null) {
+ io.papermc.paper.event.world.border.WorldBorderCenterChangeEvent event = new io.papermc.paper.event.world.border.WorldBorderCenterChangeEvent(world.getWorld(), world.getWorld().getWorldBorder(), new org.bukkit.Location(world.getWorld(), this.getCenterX(), 0, this.getCenterZ()), new org.bukkit.Location(world.getWorld(), x, 0, z));
+ if (!event.callEvent()) return;
+ x = event.getNewCenter().getX();
+ z = event.getNewCenter().getZ();
+ }
+ // Paper end - Add worldborder events
this.centerX = x;
this.centerZ = z;
this.extent.onCenterChange();
@@ -174,6 +182,17 @@ public class WorldBorder {
}
public void setSize(double size) {
+ // Paper start - Add worldborder events
+ if (this.world != null) {
+ io.papermc.paper.event.world.border.WorldBorderBoundsChangeEvent event = new io.papermc.paper.event.world.border.WorldBorderBoundsChangeEvent(world.getWorld(), world.getWorld().getWorldBorder(), io.papermc.paper.event.world.border.WorldBorderBoundsChangeEvent.Type.INSTANT_MOVE, getSize(), size, 0);
+ if (!event.callEvent()) return;
+ if (event.getType() == io.papermc.paper.event.world.border.WorldBorderBoundsChangeEvent.Type.STARTED_MOVE && event.getDuration() > 0) { // If changed to a timed transition
+ lerpSizeBetween(event.getOldSize(), event.getNewSize(), event.getDuration());
+ return;
+ }
+ size = event.getNewSize();
+ }
+ // Paper end - Add worldborder events
this.extent = new WorldBorder.StaticBorderExtent(size);
Iterator iterator = this.getListeners().iterator();
@@ -186,6 +205,20 @@ public class WorldBorder {
}
public void lerpSizeBetween(double fromSize, double toSize, long time) {
+ // Paper start - Add worldborder events
+ if (this.world != null) {
+ io.papermc.paper.event.world.border.WorldBorderBoundsChangeEvent.Type type;
+ if (fromSize == toSize) { // new size = old size
+ type = io.papermc.paper.event.world.border.WorldBorderBoundsChangeEvent.Type.INSTANT_MOVE; // Use INSTANT_MOVE because below it creates a Static border if they are equal.
+ } else {
+ type = io.papermc.paper.event.world.border.WorldBorderBoundsChangeEvent.Type.STARTED_MOVE;
+ }
+ io.papermc.paper.event.world.border.WorldBorderBoundsChangeEvent event = new io.papermc.paper.event.world.border.WorldBorderBoundsChangeEvent(world.getWorld(), world.getWorld().getWorldBorder(), type, fromSize, toSize, time);
+ if (!event.callEvent()) return;
+ toSize = event.getNewSize();
+ time = event.getDuration();
+ }
+ // Paper end - Add worldborder events
this.extent = (WorldBorder.BorderExtent) (fromSize == toSize ? new WorldBorder.StaticBorderExtent(toSize) : new WorldBorder.MovingBorderExtent(fromSize, toSize, time));
Iterator iterator = this.getListeners().iterator();
@@ -497,6 +530,7 @@ public class WorldBorder {
@Override
public WorldBorder.BorderExtent update() {
+ if (world != null && this.getLerpRemainingTime() <= 0L) new io.papermc.paper.event.world.border.WorldBorderBoundsChangeFinishEvent(world.getWorld(), world.getWorld().getWorldBorder(), this.from, this.to, this.lerpDuration).callEvent(); // Paper - Add worldborder events
return (WorldBorder.BorderExtent) (this.getLerpRemainingTime() <= 0L ? WorldBorder.this.new StaticBorderExtent(this.to) : this);
}