protocol lib null pointer error

BetterRTPAddons/pom.xml

@@ -101,6 +101,7 @@
             <groupId>com.comphenix.protocol</groupId>
             <artifactId>ProtocolLib</artifactId>
             <version>4.5.0</version>
+            <scope>provided</scope>
         </dependency>
     </dependencies>
 </project>

BetterRTPAddons/src/main/java/me/SuperRonanCraft/BetterRTPAddons/addons/portals/PortalsCache.java

@@ -1,8 +1,24 @@
 package me.SuperRonanCraft.BetterRTPAddons.addons.portals;
 
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.ProtocolManager;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.wrappers.BlockPosition;
+import com.comphenix.protocol.wrappers.ChunkCoordIntPair;
+import com.comphenix.protocol.wrappers.MultiBlockChangeInfo;
+import com.comphenix.protocol.wrappers.WrappedBlockData;
+import io.papermc.lib.PaperLib;
+import me.SuperRonanCraft.BetterRTPAddons.Main;
+import me.SuperRonanCraft.BetterRTPAddons.addons.portals.cmds.WrapperPlayServerBlockChange;
+import org.bukkit.Bukkit;
+import org.bukkit.Chunk;
 import org.bukkit.Location;
+import org.bukkit.Material;
 import org.bukkit.entity.Player;
+import org.bukkit.scheduler.BukkitRunnable;
 
+import java.lang.reflect.InvocationTargetException;
 import java.util.HashMap;
 
 public class PortalsCache {
@@ -21,10 +37,66 @@ public class PortalsCache {
         PortalsCreation portal;
         if (portalsBeingCreated.containsKey(p)) {
             portal = portalsBeingCreated.get(p);
-        } else
+        } else {
             portal = new PortalsCreation(p);
+            portalsBeingCreated.put(p, portal);
+        }
+        Location old_loc1 = portal.loc_1;
+        Location old_loc2 = portal.loc_1;
         if (loc2) portal.loc_2 = loc;
         else portal.loc_1 = loc;
+        if (Bukkit.getPluginManager().isPluginEnabled("ProtocolLib")) {
+            ProtocolManager pm = ProtocolLibrary.getProtocolManager();
+            WrapperPlayServerBlockChange block = new WrapperPlayServerBlockChange(pm.createPacket(PacketType.Play.Server.BLOCK_CHANGE));
+            block.setBlockData(WrappedBlockData.createData(Material.GLOWSTONE));
+            block.setLocation(new BlockPosition(loc.toVector()));
+            block.sendPacket(p);
+
+
+        }
+
+        if (portal.loc_1 != null && portal.loc_2 != null) {
+            //if (Math.abs(portal.loc_1.getBlockX() - portal.loc_2.getBlockX()) <= 10)
+            //if (Math.abs(portal.loc_1.getBlockZ() - portal.loc_2.getBlockZ()) <= 10)
+            //if (Math.abs(portal.loc_1.getBlockY() - portal.loc_2.getBlockY()) <= 10) {
+            preview(portal.loc_1, portal.loc_2);
+            //}
+        } else {
+            p.sendMessage((portal.loc_1 == null) + " " + (portal.loc_2 == null));
+        }
+    }
+
+    private void preview(Location loc1, Location loc2) {
+        ProtocolManager pm = ProtocolLibrary.getProtocolManager();
+        Bukkit.getScheduler().runTask(Main.getInstance(), () -> {
+            PacketContainer packet = pm
+                    .createPacket(PacketType.Play.Server.MULTI_BLOCK_CHANGE);
+            Chunk chunk = loc1.getChunk();
+            ChunkCoordIntPair chunkcoords = new ChunkCoordIntPair(chunk.getX(),
+                    chunk.getZ());
+            MultiBlockChangeInfo[] change = new MultiBlockChangeInfo[256];
+
+
+            for (int x = 0; x <= 15; x++) {
+                for(int z = 0; z <= 15; z++) {
+                    change[(16 * x) + z] = new MultiBlockChangeInfo(new Location(loc1.getWorld(), loc1.getX() + x, 100, loc1.getZ() + z), WrappedBlockData.createData(Material.GOLD_BLOCK));
+                }
+            }
+
+            packet.getChunkCoordIntPairs().write(0, chunkcoords);
+            packet.getMultiBlockChangeInfoArrays().write(0, change);
+
+
+            for (Player player : Bukkit.getOnlinePlayers()) {
+                try {
+                    pm.sendServerPacket(player, packet);
+                } catch (InvocationTargetException e) {
+                    // TODO Auto-generated catch block
+                    e.printStackTrace();
+                }
+            }
+
+        });
     }
 
     public PortalsCreation getPortal(Player p) {

BetterRTPAddons/src/main/java/me/SuperRonanCraft/BetterRTPAddons/addons/portals/cmds/PortalsCommand_Loc1.java

@@ -4,8 +4,10 @@ import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.ProtocolManager;
 import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.wrappers.BlockPosition;
 import com.comphenix.protocol.wrappers.WrappedBlockData;
 import me.SuperRonanCraft.BetterRTPAddons.addons.portals.AddonPortals;
+import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.command.CommandSender;
@@ -22,18 +24,6 @@ public class PortalsCommand_Loc1 implements PortalsCommands, LocationFinder {
         Player p = (Player) sendi;
         Location loc = getTargetBlock(p, 10).getLocation();
         addonPortals.getPortals().setPortal(p, loc, false);
-        sendi.sendMessage("Location 1 set to this location " + loc.toString());
+        sendi.sendMessage("Location 1 set to this location!");
-        //p.sendBlockChange(loc, Material.GLOWSTONE, (byte) 0);
-
-        ProtocolManager protocolManager = ProtocolLibrary.getProtocolManager();
-        WrapperPlayServerBlockChange fakeBlock = new WrapperPlayServerBlockChange();
-        fakeBlock.setLocation(BlockLocation);
-        try {
-            //System.out.println(fakeBlock.toString());
-            protocolManager.sendServerPacket(p, fakeBlock);
-        } catch (InvocationTargetException e) {
-            throw new RuntimeException(
-                    "Cannot send packet " + fakeBlock, e);
-        }
     }
 }

BetterRTPAddons/src/main/java/me/SuperRonanCraft/BetterRTPAddons/addons/portals/cmds/PortalsCommand_Loc2.java

@@ -15,6 +15,6 @@ public class PortalsCommand_Loc2 implements PortalsCommands, LocationFinder {
         Player p = (Player) sendi;
         Location loc = getTargetBlock(p, 10).getLocation();
         addonPortals.getPortals().setPortal(p, loc, true);
-        sendi.sendMessage("Location 2 set to this location " + loc.toString());
+        sendi.sendMessage("Location 2 set to this location!");
     }
 }

BetterRTPAddons/src/main/resources/plugin.yml

@@ -3,6 +3,7 @@ version: 1.0
 api-version: '1.13'
 name: BetterRTPAddons
 depend: [BetterRTP]
+softdepend: [ProtocolLib]
 
 permissions:
   betterrtp.addon.portals: