From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 21 Aug 2021 18:53:03 -0700
Subject: [PATCH] Only capture actual tree growth


diff --git a/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
index 70aade6a8d36f8376cc567800258ea6fabb0607f..8c2750de3be202122ccf9923a9fa32fcb8bdb743 100644
--- a/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
@@ -861,6 +861,7 @@ public interface DispenseItemBehavior {
                     if (!fertilizeEvent.isCancelled()) {
                         for (org.bukkit.block.BlockState blockstate : blocks) {
                             blockstate.update(true);
+                            worldserver.checkCapturedTreeStateForObserverNotify(blockposition, (org.bukkit.craftbukkit.block.CraftBlockState) blockstate); // Paper - notify observers even if grow failed
                         }
                     }
                 }
diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
index 879cc823d56625867eb73bb621db6a13f40ad81c..d138660e459b2d09ba9dd7ae2bf3da499d9ae25c 100644
--- a/src/main/java/net/minecraft/world/item/ItemStack.java
+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
@@ -396,6 +396,7 @@ public final class ItemStack {
                     }
                     for (CraftBlockState blockstate : blocks) {
                         world.setBlock(blockstate.getPosition(),blockstate.getHandle(), blockstate.getFlag()); // SPIGOT-7248 - manual update to avoid physics where appropriate
+                        world.checkCapturedTreeStateForObserverNotify(blockposition, blockstate); // Paper - notify observers even if grow failed
                         if (blockstate instanceof org.bukkit.craftbukkit.block.CapturedBlockState capturedBlockState) capturedBlockState.checkTreeBlockHack(); // Paper
                     }
                     entityhuman.awardStat(Stats.ITEM_USED.get(item)); // SPIGOT-7236 - award stat
diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index 773bfdd3ed457a352b5329f280c0d10297d579ba..b6b6d5af1784963d95843e326abffa3add55ec4f 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -1554,4 +1554,12 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
         return null;
     }
     // Paper end
+
+    // Paper start
+    public void checkCapturedTreeStateForObserverNotify(final BlockPos pos, final CraftBlockState craftBlockState) {
+        if (craftBlockState.getPosition().getY() == pos.getY() && this.getBlockState(craftBlockState.getPosition()) == craftBlockState.getHandle()) { // notify observers if the block state is the same and the Y level equals the original y level (for mega trees)
+            this.notifyAndUpdatePhysics(craftBlockState.getPosition(), null, craftBlockState.getHandle(), craftBlockState.getHandle(), craftBlockState.getHandle(), craftBlockState.getFlag(), 512);
+        }
+    }
+    // Paper end
 }
diff --git a/src/main/java/net/minecraft/world/level/block/SaplingBlock.java b/src/main/java/net/minecraft/world/level/block/SaplingBlock.java
index d5ec1e5909c03a58add7f4597b140f787600c09a..8a0cb287bec1c607278f7a333140afbecd45dea5 100644
--- a/src/main/java/net/minecraft/world/level/block/SaplingBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/SaplingBlock.java
@@ -73,6 +73,7 @@ public class SaplingBlock extends BushBlock implements BonemealableBlock {
                     if (event == null || !event.isCancelled()) {
                         for (BlockState blockstate : blocks) {
                             blockstate.update(true);
+                            world.checkCapturedTreeStateForObserverNotify(pos, (org.bukkit.craftbukkit.block.CraftBlockState) blockstate); // Paper - notify observers even if grow failed
                         }
                     }
                 }
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
index f3ac362b7b65a5273ff5fdad1d8065c5f654a53a..bb5837c74edfecec9956b635546a8ecfe1c7dfa5 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
@@ -592,6 +592,7 @@ public class CraftBlock implements Block {
             if (!event.isCancelled()) {
                 for (BlockState blockstate : blocks) {
                     blockstate.update(true);
+                    world.checkCapturedTreeStateForObserverNotify(this.position, (org.bukkit.craftbukkit.block.CraftBlockState) blockstate); // Paper - notify observers even if grow failed
                 }
             }
         }