Paper/patches/server/0580-Add-worldborder-events.patch

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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 2442c287a7f26cfee10a19e9015558cdebdcf3ac..7a12a4da4864306ec6589ca81368e84718825047 100644
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--- a/src/main/java/net/minecraft/world/level/border/WorldBorder.java
+++ b/src/main/java/net/minecraft/world/level/border/WorldBorder.java
@@ -123,6 +123,14 @@ public class WorldBorder {
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}
public void setCenter(double x, double z) {
+ // Paper start
+ 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();
+ }
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+ // Paper end
this.centerX = x;
this.centerZ = z;
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this.extent.onCenterChange();
@@ -149,6 +157,17 @@ public class WorldBorder {
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}
public void setSize(double size) {
+ // Paper start
+ 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();
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+ }
+ // Paper end
this.extent = new WorldBorder.StaticBorderExtent(size);
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Iterator iterator = this.getListeners().iterator();
@@ -161,6 +180,20 @@ public class WorldBorder {
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}
public void lerpSizeBetween(double fromSize, double toSize, long time) {
+ // Paper start
+ 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();
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+ }
+ // Paper end
this.extent = (WorldBorder.BorderExtent) (fromSize == toSize ? new WorldBorder.StaticBorderExtent(toSize) : new WorldBorder.MovingBorderExtent(fromSize, toSize, time));
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Iterator iterator = this.getListeners().iterator();
@@ -472,6 +505,7 @@ public class WorldBorder {
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@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
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return (WorldBorder.BorderExtent) (this.getLerpRemainingTime() <= 0L ? WorldBorder.this.new StaticBorderExtent(this.to) : this);
}