added a crossbow check

.gitignore

@@ -0,0 +1 @@
+build

src/main/java/org/twipnetwork/rocketJumping/RocketJumping.java

@@ -9,6 +9,8 @@ import org.bukkit.entity.Firework;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.entity.ProjectileHitEvent;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.CrossbowMeta;
 import org.bukkit.plugin.java.JavaPlugin;
 import org.bukkit.util.Vector;
 
@@ -16,6 +18,7 @@ public final class RocketJumping extends JavaPlugin implements Listener {
 
     private double boostPower;
     private boolean damageShooter;
+    private boolean onlyCrossbow;
 
     @Override
     public void onEnable() {
@@ -23,6 +26,7 @@ public final class RocketJumping extends JavaPlugin implements Listener {
         FileConfiguration config = getConfig();
         boostPower = config.getDouble("boostPower", 4.0);
         damageShooter = config.getBoolean("damageShooter", false);
+        onlyCrossbow = config.getBoolean("onlyCrossbow", true);
         Bukkit.getPluginManager().registerEvents(this, this);
     }
 
@@ -37,6 +41,28 @@ public final class RocketJumping extends JavaPlugin implements Listener {
         if (projectile instanceof Firework firework) {
             Entity shooter = (Entity) firework.getShooter();
 
+            if (onlyCrossbow && shooter instanceof Player player) {
+                ItemStack itemInMainHand = player.getInventory().getItemInMainHand();
+                ItemStack itemInOffHand = player.getInventory().getItemInOffHand();
+                boolean shotFromCrossbow = false;
+
+                if (itemInMainHand.getItemMeta() instanceof CrossbowMeta meta) {
+                    if (meta.getChargedProjectiles().contains(firework)) {
+                        shotFromCrossbow = true;
+                    }
+                }
+
+                if (itemInOffHand.getItemMeta() instanceof CrossbowMeta meta) {
+                    if (meta.getChargedProjectiles().contains(firework)) {
+                        shotFromCrossbow = true;
+                    }
+                }
+
+                if (!shotFromCrossbow) {
+                    return;
+                }
+            }
+
             for (Entity entity : firework.getNearbyEntities(5, 5, 5)) {
                 if (entity instanceof Player player) {
                     Vector boostDirection = player.getLocation().toVector().subtract(firework.getLocation().toVector()).normalize();

src/main/resources/config.yml

@@ -3,4 +3,7 @@
 boostPower: 4.0
 
 # damageShooter defines whether the shooter gets damages by their own fireworks (default: false)
-damageShooter: false
+damageShooter: false
+
+# onlyCrossbow defines whether the only fireworks shot from a crossbow should launch entities or if all fireworks (default: true)
+onlyCrossbow: true