craftattack/src/main/java/eu/mhsl/craftattack/spawn/craftattack/appliances/gameplay/newYearFirework/NewYearFirework.java

@@ -0,0 +1,43 @@
+package eu.mhsl.craftattack.spawn.craftattack.appliances.gameplay.newYearFirework;
+
+import eu.mhsl.craftattack.spawn.core.appliance.Appliance;
+import org.bukkit.Color;
+import org.bukkit.FireworkEffect;
+import org.bukkit.NamespacedKey;
+import org.bukkit.entity.Firework;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Listener;
+import org.bukkit.inventory.meta.FireworkMeta;
+import org.bukkit.persistence.PersistentDataType;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.List;
+import java.util.Locale;
+
+public class NewYearFirework extends Appliance {
+    private static final String namespace = NewYearFirework.class.getSimpleName().toLowerCase(Locale.ROOT);
+    public static NamespacedKey fireworkKey = new NamespacedKey(namespace, "newyear_firework".toLowerCase());
+
+    public void spawnFirework(Player player) {
+        for (int i = 0; i < 5; i++) {
+            Firework firework = player.getWorld().spawn(player.getLocation(), Firework.class);
+            firework.getPersistentDataContainer().set(fireworkKey, PersistentDataType.BOOLEAN, true);
+            FireworkMeta fireworkMeta = firework.getFireworkMeta();
+            fireworkMeta.addEffect(FireworkEffect.builder()
+                    .with(FireworkEffect.Type.BALL)
+                    .withColor(Color.AQUA, Color.RED, Color.LIME, Color.ORANGE, Color.YELLOW)
+                    .withFade(Color.FUCHSIA, Color.WHITE)
+                    .trail(true)
+                    .flicker(true)
+                    .build()
+            );
+            fireworkMeta.setPower((int) (i % 3 + 0.25));
+            firework.setFireworkMeta(fireworkMeta);
+        }
+    }
+
+    @Override
+    protected @NotNull List<Listener> listeners() {
+        return List.of(new NewYearFireworkListener());
+    }
+}

craftattack/src/main/java/eu/mhsl/craftattack/spawn/craftattack/appliances/gameplay/newYearFirework/NewYearFireworkListener.java

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+package eu.mhsl.craftattack.spawn.craftattack.appliances.gameplay.newYearFirework;
+
+import eu.mhsl.craftattack.spawn.core.appliance.ApplianceListener;
+import org.bukkit.entity.Firework;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.entity.EntityDamageByEntityEvent;
+import org.bukkit.event.player.PlayerJoinEvent;
+
+import java.time.LocalDate;
+
+public class NewYearFireworkListener extends ApplianceListener<NewYearFirework> {
+    @EventHandler
+    public void onPlayerJoin(PlayerJoinEvent event) {
+        if(LocalDate.now().getDayOfYear() != 1) return;
+        this.getAppliance().spawnFirework(event.getPlayer());
+    }
+    @EventHandler
+    public void onDamage(EntityDamageByEntityEvent event) {
+        if(!(event.getDamager() instanceof Firework firework)) return;
+        if(!firework.getPersistentDataContainer().has(NewYearFirework.fireworkKey)) return;
+        event.setCancelled(true);
+    }
+}