[Help]About Generate effect

I want to produce some effect around the player，But I do not know what to do
The effect I generated was uncontrolled，I do not know why

Spoiler: image

This is all my code, the comment part is what I retained in the experiment

Code (Text):

import org.bukkit.Bukkit;
import org.bukkit.Effect;
import org.bukkit.Location;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerMoveEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin implements Listener {

public void onEnable(){
    getServer().getPluginManager().registerEvents(this, this);
    Bukkit.getConsoleSender().sendMessage("test");
}
@EventHandler
public void onPlayerMove(PlayerMoveEvent event){
    Player player = event.getPlayer();
     double angle = 10;
     double radius = 1.0D;
     for (int i = 0; i < 360; i += angle){
     double x = Math.cos(Math.toRadians(i)) * radius;
      double z = Math.sin(Math.toRadians(i)) * radius;
   
     //Location playerLoc = player.getLocation();
     //Location l = new Location(playerLoc.getWorld(), x + playerLoc.getX(), 1.0D, z + playerLoc.getZ());
     //player.getWorld().playEffect(l, Effect.FLAME , 5);
      Location playerloc = player.getLocation();
      Location l = new Location(player.getWorld(), x+playerloc.getX(), 1.0D+playerloc.getY(), z+playerloc.getZ());
     player.getWorld().playEffect(l,Effect.FLAME,1);
    player.sendMessage("§fDetect that you are moving, giving effect");
     }
}
}
/*public void createeffect(Player player){
     double angle = 10;
     double radius = 1.0D;
     for (int i = 0; i < 360; i += angle){
     double x = Math.cos(Math.toRadians(i)) * radius;
      double z = Math.sin(Math.toRadians(i)) * radius;
   
     Location playerLoc = player.getLocation();
     Location l = new Location(playerLoc.getWorld(), x + playerLoc.getX(), 1.0D, z + playerLoc.getZ());
     player.getWorld().playEffect(l, Effect.FLAME , 5);
     }
}
}
*/

The correct thing should look like this

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please help me

 

Sorry for my fault，I did not notice it，The problem is not resolved

 

I don't think it's a particle problem，Particles are generated in the round but not controlled

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