1 files changed, 72 insertions, 0 deletions
diff --git a/patches/server/0559-Add-worldborder-events.patch b/patches/server/0559-Add-worldborder-events.patch
new file mode 100644
index 0000000000..176d1259e4
--- /dev/null
+++ b/patches/server/0559-Add-worldborder-events.patch
@@ -0,0 +1,72 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <[email protected]>
+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 dd74e8a034022fe72a1652f92712182b4910f651..204f008dc36212e696fba781fede88044b2f735a 100644
+--- 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 {
+     }
+ 
+     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();
++        }
++        // Paper end
+         this.centerX = x;
+         this.centerZ = z;
+         this.extent.onCenterChange();
+@@ -149,6 +157,17 @@ public class WorldBorder {
+     }
+ 
+     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();
++        }
++        // Paper end
+         this.extent = new WorldBorder.StaticBorderExtent(size);
+         Iterator iterator = this.getListeners().iterator();
+ 
+@@ -161,6 +180,20 @@ public class WorldBorder {
+     }
+ 
+     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();
++        }
++        // Paper end
+         this.extent = (WorldBorder.BorderExtent) (fromSize == toSize ? new WorldBorder.StaticBorderExtent(toSize) : new WorldBorder.MovingBorderExtent(fromSize, toSize, time));
+         Iterator iterator = this.getListeners().iterator();
+ 
+@@ -472,6 +505,7 @@ 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
+             return (WorldBorder.BorderExtent) (this.getLerpRemainingTime() <= 0L ? WorldBorder.this.new StaticBorderExtent(this.to) : this);
+         }
+