From 4a7552e6bed311a9334c544ff352b18ffc53dd5f Mon Sep 17 00:00:00 2001
From: Pieter12345 <P.J.S.Kools@student.tudelft.nl>
Date: Wed, 25 Dec 2019 04:22:29 +0100
Subject: [PATCH] Prevent pushing pistons across region borders

Pistons are classified as not pushable regardless of their state, causing WorldGuard to not protect against them moving. This commit fixes that.
---
 .../worldguard/bukkit/listener/EventAbstractionListener.java   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/listener/EventAbstractionListener.java b/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/listener/EventAbstractionListener.java
index d29c3b37..9a45cf01 100644
--- a/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/listener/EventAbstractionListener.java
+++ b/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/listener/EventAbstractionListener.java
@@ -357,7 +357,8 @@ public void onBlockPistonExtend(BlockPistonExtendEvent event) {
             for (int i = 0; i < blocks.size(); i++) {
                 Block existing = blocks.get(i);
                 if (existing.getPistonMoveReaction() == PistonMoveReaction.MOVE
-                    || existing.getPistonMoveReaction() == PistonMoveReaction.PUSH_ONLY) {
+                    || existing.getPistonMoveReaction() == PistonMoveReaction.PUSH_ONLY
+                    || existing.getType() == Material.PISTON || existing.getType() == Material.STICKY_PISTON) {
                     blocks.set(i, existing.getRelative(dir));
                 }
             }