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path: root/nms-patches/BlockDoor.patch
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--- a/net/minecraft/server/BlockDoor.java
+++ b/net/minecraft/server/BlockDoor.java
@@ -3,6 +3,8 @@
 import java.util.Random;
 import javax.annotation.Nullable;
 
+import org.bukkit.event.block.BlockRedstoneEvent; // CraftBukkit
+
 public class BlockDoor extends Block {
 
     public static final BlockStateDirection FACING = BlockFacingHorizontal.FACING;
@@ -138,9 +140,22 @@
                     this.b(world, blockposition, iblockdata, 0);
                 }
             } else {
-                boolean flag1 = world.isBlockIndirectlyPowered(blockposition) || world.isBlockIndirectlyPowered(blockposition2);
 
-                if (block != this && (flag1 || block.getBlockData().m()) && flag1 != ((Boolean) iblockdata2.get(BlockDoor.POWERED)).booleanValue()) {
+                // CraftBukkit start
+                org.bukkit.World bworld = world.getWorld();
+                org.bukkit.block.Block bukkitBlock = bworld.getBlockAt(blockposition.getX(), blockposition.getY(), blockposition.getZ());
+                org.bukkit.block.Block blockTop = bworld.getBlockAt(blockposition2.getX(), blockposition2.getY(), blockposition2.getZ());
+
+                int power = bukkitBlock.getBlockPower();
+                int powerTop = blockTop.getBlockPower();
+                if (powerTop > power) power = powerTop;
+                int oldPower = (Boolean)iblockdata2.get(POWERED) ? 15 : 0;
+
+                if (oldPower == 0 ^ power == 0) {
+                    BlockRedstoneEvent eventRedstone = new BlockRedstoneEvent(bukkitBlock, oldPower, power);
+                    world.getServer().getPluginManager().callEvent(eventRedstone);
+
+                    boolean flag1 = eventRedstone.getNewCurrent() > 0;
                     world.setTypeAndData(blockposition2, iblockdata2.set(BlockDoor.POWERED, Boolean.valueOf(flag1)), 2);
                     if (flag1 != ((Boolean) iblockdata.get(BlockDoor.OPEN)).booleanValue()) {
                         world.setTypeAndData(blockposition, iblockdata.set(BlockDoor.OPEN, Boolean.valueOf(flag1)), 2);
@@ -148,6 +163,7 @@
                         world.a((EntityHuman) null, flag1 ? this.g() : this.e(), blockposition, 0);
                     }
                 }
+                // CraftBukkit end
             }
         }