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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Nassim Jahnke <nassim@njahnke.dev>
Date: Fri, 4 Mar 2022 20:35:19 +0100
Subject: [PATCH] Fix falling block spawn methods

Restores the API behavior from previous versions of the server
- Do not call API events
- Do not replace the existing block in the world

== AT ==
public net.minecraft.world.entity.item.FallingBlockEntity <init>(Lnet/minecraft/world/level/Level;DDDLnet/minecraft/world/level/block/state/BlockState;)V

diff --git a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
index c738fb984ffd120e5adccdb5828833f180e72e80..5c8e905bbf56dd2af5b30d34371793c3f98801ab 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
@@ -599,7 +599,7 @@ public abstract class CraftRegionAccessor implements RegionAccessor {
             // Paper end
         } else if (FallingBlock.class.isAssignableFrom(clazz)) {
             BlockPos pos = BlockPos.containing(x, y, z);
-            entity = FallingBlockEntity.fall(world, pos, this.getHandle().getBlockState(pos));
+            entity = new FallingBlockEntity(world, x, y, z, this.getHandle().getBlockState(pos)); // Paper
         } else if (Projectile.class.isAssignableFrom(clazz)) {
             if (Snowball.class.isAssignableFrom(clazz)) {
                 entity = new net.minecraft.world.entity.projectile.Snowball(world, x, y, z);
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 2b0ed0b70b01e1efd315ec13492a53ec728a9fec..3ccba43d0eaa4ad867a555a92dd41f5924fc8b44 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -1391,7 +1391,12 @@ public class CraftWorld extends CraftRegionAccessor implements World {
         Validate.notNull(material, "Material cannot be null");
         Validate.isTrue(material.isBlock(), "Material must be a block");
 
-        FallingBlockEntity entity = FallingBlockEntity.fall(world, BlockPos.containing(location.getX(), location.getY(), location.getZ()), CraftMagicNumbers.getBlock(material).defaultBlockState(), SpawnReason.CUSTOM);
+        // Paper start - restore API behavior for spawning falling blocks
+        FallingBlockEntity entity = new FallingBlockEntity(this.world, location.getX(), location.getY(), location.getZ(), CraftMagicNumbers.getBlock(material).defaultBlockState()); // Paper
+        entity.time = 1;
+
+        this.world.addFreshEntity(entity, SpawnReason.CUSTOM);
+        // Paper end
         return (FallingBlock) entity.getBukkitEntity();
     }
 
@@ -1400,7 +1405,12 @@ public class CraftWorld extends CraftRegionAccessor implements World {
         Validate.notNull(location, "Location cannot be null");
         Validate.notNull(data, "BlockData cannot be null");
 
-        FallingBlockEntity entity = FallingBlockEntity.fall(world, BlockPos.containing(location.getX(), location.getY(), location.getZ()), ((CraftBlockData) data).getState(), SpawnReason.CUSTOM);
+        // Paper start - restore API behavior for spawning falling blocks
+        FallingBlockEntity entity = new FallingBlockEntity(this.world, location.getX(), location.getY(), location.getZ(), ((CraftBlockData) data).getState());
+        entity.time = 1;
+
+        this.world.addFreshEntity(entity, SpawnReason.CUSTOM);
+        // Paper end
         return (FallingBlock) entity.getBukkitEntity();
     }