Implementing fireball

src/de/steamwar/spectatesystem/PacketProcessor.java

@@ -20,10 +20,7 @@
 package de.steamwar.spectatesystem;
 
 import com.sk89q.worldedit.EditSession;
-import de.steamwar.spectatesystem.elements.RArrow;
-import de.steamwar.spectatesystem.elements.REntity;
-import de.steamwar.spectatesystem.elements.RPlayer;
-import de.steamwar.spectatesystem.elements.RTnT;
+import de.steamwar.spectatesystem.elements.*;
 import de.steamwar.sql.NoClipboardException;
 import de.steamwar.sql.Schematic;
 import de.steamwar.sql.SteamwarUser;
@@ -122,12 +119,18 @@ class PacketProcessor {
         ((RPlayer)REntity.getEntity(entityId)).setItem(item, enchanted, slot);
     }
 
-    private void spawnArrow() throws IOException {
+    private void arrowSpawn() throws IOException {
         int entityId = source.rInt();
 
         new RArrow(entityId);
     }
 
+    private void fireballSpawn() throws IOException {
+        int entityId = source.rInt();
+
+        new RFireball(entityId);
+    }
+
     private void send(ChatMessageType type) throws IOException {
         String message = source.rString();
 
@@ -237,7 +240,10 @@ class PacketProcessor {
                         playerItem();
                         break;
                     case 0x08:
-                        spawnArrow();
+                        arrowSpawn();
+                        break;
+                    case 0x09:
+                        fireballSpawn();
                         break;
                     case 0x30:
                         block();

src/de/steamwar/spectatesystem/elements/RArrow.java

@@ -27,11 +27,6 @@ public class RArrow extends REntity {
         super(internalId, createArrow());
     }
 
-    @Override
-    protected void spawnEntity(PlayerConnection connection) {
-        connection.sendPacket(new PacketPlayOutSpawnEntity(entity));
-    }
-
     private static EntityTippedArrow createArrow() {
         return new EntityTippedArrow(world, 0, 0, 0);
     }

src/de/steamwar/spectatesystem/elements/REntity.java

@@ -114,5 +114,7 @@ public abstract class REntity {
         ((CraftPlayer)player).getHandle().playerConnection.sendPacket(new PacketPlayOutEntityTeleport(entity));
     }
 
-    protected abstract void spawnEntity(PlayerConnection connection);
+    protected void spawnEntity(PlayerConnection connection){
+        connection.sendPacket(new PacketPlayOutSpawnEntity(entity));
+    }
 }

src/de/steamwar/spectatesystem/elements/RFireball.java

@@ -0,0 +1,32 @@
+/*
+    This file is a part of the SteamWar software.
+
+    Copyright (C) 2020  SteamWar.de-Serverteam
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package de.steamwar.spectatesystem.elements;
+
+import net.minecraft.server.v1_15_R1.*;
+
+public class RFireball extends REntity{
+    public RFireball(int internalId) {
+        super(internalId, createFireball());
+    }
+
+    private static EntityFireball createFireball() {
+        return new EntitySmallFireball(world, 0, 0, 0, 0, 0, 0);
+    }
+}

src/de/steamwar/spectatesystem/elements/RTnT.java

@@ -20,8 +20,6 @@
 package de.steamwar.spectatesystem.elements;
 
 import net.minecraft.server.v1_15_R1.EntityTNTPrimed;
-import net.minecraft.server.v1_15_R1.PacketPlayOutSpawnEntity;
-import net.minecraft.server.v1_15_R1.PlayerConnection;
 
 public class RTnT extends REntity {
 
@@ -29,11 +27,6 @@ public class RTnT extends REntity {
         super(internalId, createTnT());
     }
 
-    @Override
-    protected void spawnEntity(PlayerConnection connection) {
-        connection.sendPacket(new PacketPlayOutSpawnEntity(entity));
-    }
-
     private static EntityTNTPrimed createTnT() {
         return new EntityTNTPrimed(world, 0, 0, 0, null);
     }

src/de/steamwar/spectatesystem/listener/ArenaListener.java

@@ -28,6 +28,8 @@ import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
+import org.bukkit.event.block.BlockExplodeEvent;
+import org.bukkit.event.entity.EntityExplodeEvent;
 import org.bukkit.event.player.PlayerMoveEvent;
 import org.bukkit.event.player.PlayerTeleportEvent;
 import org.bukkit.event.world.ChunkUnloadEvent;
@@ -80,4 +82,14 @@ public class ArenaListener extends BasicListener {
     public void onWorldLoad(WorldLoadEvent e){
         e.getWorld().setAutoSave(false);
     }
+
+    @EventHandler
+    public void onEntityExplosion(EntityExplodeEvent e){
+        e.setCancelled(true);
+    }
+
+    @EventHandler
+    public void onBlockExplosion(BlockExplodeEvent e){
+        e.setCancelled(true);
+    }
 }