Only send particles to players who should be seeing them

src/main/java/com/alttd/objects/Frame.java

@@ -1,10 +1,13 @@
 package com.alttd.objects;
 
+import com.alttd.storage.PlayerSettings;
 import com.destroystokyo.paper.ParticleBuilder;
+import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.entity.Player;
 
 import java.util.List;
+import java.util.stream.Collectors;
 
 public class Frame {
     List<ParticleBuilder> particles;
@@ -19,6 +22,16 @@ public class Frame {
      * @param   location  Location to spawn particles at
      */
     public void spawn(Location location) {
-        particles.forEach(particleBuilder -> particleBuilder.location(location).spawn());
+        particles.forEach(particleBuilder -> particleBuilder
+                .location(location)
+                .receivers(Bukkit.getOnlinePlayers().stream()
+                        .filter(player -> {
+                            PlayerSettings playerSettings = PlayerSettings.getPlayer(player.getUniqueId());
+                            if (playerSettings == null)
+                                return false;
+                            return playerSettings.isSeeingParticles();
+                        }).collect(Collectors.toList())
+                )
+                .spawn());
     }
 }