Move tick call responsibility to EntityServer owner

SpigotCore_Main/src/de/steamwar/entity/REntityServer.java

@@ -29,7 +29,6 @@ import org.bukkit.event.HandlerList;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerMoveEvent;
 import org.bukkit.event.player.PlayerQuitEvent;
-import org.bukkit.scheduler.BukkitTask;
 
 import java.util.HashMap;
 import java.util.HashSet;
@@ -46,11 +45,8 @@ public class REntityServer implements Listener {
     private final HashMap<Long, HashSet<Player>> players = new HashMap<>();
     private final HashMap<Player, Location> lastLocation = new HashMap<>();
 
-    private final BukkitTask tickTask;
-
     public REntityServer() {
         Core.getInstance().getServer().getPluginManager().registerEvents(this, Core.getInstance());
-        tickTask = Core.getInstance().getServer().getScheduler().runTaskTimer(Core.getInstance(), this::tick, 1, 1);
     }
 
     public void addPlayer(Player player) {
@@ -68,7 +64,6 @@ public class REntityServer implements Listener {
         for(Player player : lastLocation.keySet().toArray(new Player[0])) {
             removePlayer(player);
         }
-        tickTask.cancel();
         HandlerList.unregisterAll(this);
     }
 
@@ -186,7 +181,7 @@ public class REntityServer implements Listener {
         }
     }
 
-    private void tick() {
+    public void tick() {
         for(HashSet<REntity> entitiesInChunk : entities.values()) {
             for(REntity entity : entitiesInChunk) {
                 entity.tick();