first Prototype

scenes/weapon/railgun/railgun.gd

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+class_name Railgun extends "res://scenes/weapon/weapon.gd"
+
+@onready var bullet = preload("res://scenes/bullet/bulletRailgun/bulletRailgun.tscn")
+
+func attack():
+	if cooldownTimer.is_stopped():
+		spawnBullet()
+		cooldownTimer.start(cooldown)
+
+func spawnBullet():
+	var newBullet = bullet.instantiate()
+	newBullet.spawn(bulletPoint.global_position, get_parent().get_parent().rotation, damage, penetration)
+	
+	get_tree().get_first_node_in_group("bulletPool").add_child(newBullet)

scenes/weapon/railgun/railgun.gd.uid

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+uid://dth0orslxriyp

scenes/weapon/railgun/railgun.tscn

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+[gd_scene load_steps=3 format=3 uid="uid://bm2e5fwynwur8"]
+
+[ext_resource type="PackedScene" uid="uid://btyuxgfn12p1y" path="res://scenes/weapon/weapon.tscn" id="1_lb4uk"]
+[ext_resource type="Script" uid="uid://dth0orslxriyp" path="res://scenes/weapon/railgun/railgun.gd" id="2_ur8td"]
+
+[node name="Railgun" instance=ExtResource("1_lb4uk")]
+script = ExtResource("2_ur8td")
+damage = 10
+cooldown = 10.0
+penetration = 5
+
+[node name="cooldownTimer" parent="." index="0"]
+wait_time = 10.0