Hotfix ShieldPrinting

Signed-off-by: yoyosource <yoyosource@nidido.de>

BauSystem_Main/src/de/steamwar/bausystem/features/shieldprinting/ShieldPrinting.java

@@ -29,6 +29,7 @@ import org.bukkit.Material;
 import org.bukkit.World;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
+import org.bukkit.block.PistonMoveReaction;
 import org.bukkit.block.data.BlockData;
 import org.bukkit.boss.BarColor;
 import org.bukkit.entity.Entity;
@@ -114,6 +115,7 @@ public class ShieldPrinting implements Listener {
         Map<Vector, Vector> temp = new HashMap<>();
         for (Block block : blockList) {
             if (Region.getRegion(block.getLocation()) != region) continue;
+            if (block.getPistonMoveReaction() == PistonMoveReaction.BREAK) continue;
             Vector vector = block.getLocation().toVector();
             Vector origin = vector.clone();
             vector = vector.add(direction.getDirection());