extends Area2D

# Data to be set externally when this bullet is instantiated
var bullet_scene: PackedScene = null
var shot_data: WeaponShot = null

# Time offset when this bullet was fired (relative to other bullets in the same shot)
var time_offset: float = 0.5

# When this bullet should fire (absolute time)
var fire_time: float = 0.0

# Track if this bullet is currently active in the shot
var is_active: bool = false

func _process(delta):
    var current_time = Time.get_ticks_msec() / 1000.0

    # Fire if it's time and bullet isn't already active
    if !is_active and current_time >= fire_time:
        activate()

    # Move the bullet
    position.y -= shot_data.speed * delta

func activate():
    is_active = true
    visible = true

    # # Emit signal for hit detection
    # emit_signal("activate")

func _on_visible_on_screen_notifier_2d_screen_exited():
    queue_free()

    # Set fire_time for the next shot (staggered firing)
    var current_time = Time.get_ticks_msec() / 1000.0
    fire_time = current_time + shot_data.stagger_offset

# Function to set the bullet data (called from parent scene)
func set_weapon_data(bullet_scene_param: PackedScene, shot_data_param: WeaponShot):
    bullet_scene = bullet_scene_param
    shot_data = shot_data_param