From 62d89ef9e4dca6376a34855c11158a86537a0392 Mon Sep 17 00:00:00 2001
From: TrollyLoki <trollyloki@gmail.com>
Date: Tue, 10 Oct 2023 17:09:45 -0400
Subject: [PATCH] Make setVelocity method of Fireballs change the travel
 direction to an arbitrary vector (#9815)

---
 ...-method-of-Fireballs-change-the-trav.patch | 30 +++++++++++++++++++
 patches/server/Properly-resend-entities.patch |  9 +++---
 2 files changed, 34 insertions(+), 5 deletions(-)
 create mode 100644 patches/server/Make-setVelocity-method-of-Fireballs-change-the-trav.patch

diff --git a/patches/server/Make-setVelocity-method-of-Fireballs-change-the-trav.patch b/patches/server/Make-setVelocity-method-of-Fireballs-change-the-trav.patch
new file mode 100644
index 0000000000..298b956041
--- /dev/null
+++ b/patches/server/Make-setVelocity-method-of-Fireballs-change-the-trav.patch
@@ -0,0 +1,30 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: TrollyLoki <trollyloki@gmail.com>
+Date: Tue, 10 Oct 2023 00:45:01 -0400
+Subject: [PATCH] Make setVelocity method of Fireballs change the travel
+ direction to an arbitrary vector
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftFireball.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftFireball.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftFireball.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftFireball.java
+@@ -0,0 +0,0 @@ public class CraftFireball extends AbstractProjectile implements Fireball {
+         update(); // SPIGOT-6579
+     }
+ 
++    // Paper start - set direction without normalizing
++    @Override
++    public void setVelocity(Vector velocity) {
++        Preconditions.checkArgument(velocity != null, "Vector velocity cannot be null");
++        velocity.checkFinite();
++        this.getHandle().xPower = velocity.getX();
++        this.getHandle().yPower = velocity.getY();
++        this.getHandle().zPower = velocity.getZ();
++        update();
++    }
++    // Paper end
++
+     @Override
+     public AbstractHurtingProjectile getHandle() {
+         return (AbstractHurtingProjectile) entity;
diff --git a/patches/server/Properly-resend-entities.patch b/patches/server/Properly-resend-entities.patch
index a5700b6179..3c9e05dd92 100644
--- a/patches/server/Properly-resend-entities.patch
+++ b/patches/server/Properly-resend-entities.patch
@@ -121,7 +121,6 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
                  return Optional.of(InteractionResult.FAIL);
              }
              entity.playSound(((Bucketable) entity).getPickupSound(), 1.0F, 1.0F);
-
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -129,7 +128,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 @@ -0,0 +0,0 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
              return;
          }
-
+ 
 -        entityTracker.broadcast(this.getHandle().getAddEntityPacket());
 +        // Paper start, resend possibly desynced entity instead of add entity packet
 +        for (ServerPlayerConnection playerConnection : entityTracker.seenBy) {
@@ -137,7 +136,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        }
 +        // Paper end
      }
-
+ 
      private static PermissibleBase getPermissibleBase() {
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftItemFrame.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftItemFrame.java
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
@@ -146,7 +145,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 @@ -0,0 +0,0 @@ public class CraftItemFrame extends CraftHanging implements ItemFrame {
      protected void update() {
          super.update();
-
+ 
 +        // Paper start, don't mark as dirty as this is handled in super.update()
          // mark dirty, so that the client gets updated with item and rotation
 -        this.getHandle().getEntityData().markDirty(net.minecraft.world.entity.decoration.ItemFrame.DATA_ITEM);
@@ -154,6 +153,6 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        //this.getHandle().getEntityData().markDirty(net.minecraft.world.entity.decoration.ItemFrame.DATA_ITEM);
 +        //this.getHandle().getEntityData().markDirty(net.minecraft.world.entity.decoration.ItemFrame.DATA_ROTATION);
 +        // Paper end
-
+ 
          // update redstone
          if (!this.getHandle().generation) {