extends Node2D

class_name Ship

# TODO: add weapons

## Emits when hull hp reaches zero.
signal destroyed

## Reference to the engine module
@onready var engine: ShipEngine = $Engine
## Reference to the hull module
@onready var hull: Hull = $Hull
## Reference to the shield module
@onready var shield: Shield = $Shield
## Reference to primary weapon
#@onready var primary_weapon: Weapon = $PrimaryWeapon
## Reference to secondary weapon
#@onready var secondary_weapon: Weapon = $SecondaryWeapon

## Faction which this ship belongs to
var faction : Game.Faction = Game.Faction.Player

func _ready():
	#shield.material = material
	destroyed.connect(destroy)

## Reset all required variables
func destroy():
	hull.hp = hull.max_hp
	shield.capacity = shield.max_capacity

## Swaps old hull with the new one
func change_hull(new_hull_id: String):
	var new_hull: Hull = Game.get_module(new_hull_id, 'hull').instantiate()
	var old_hull: Hull = hull
	add_child(new_hull)
	hull = new_hull
	hull.hp = old_hull.hp
	get_tree().create_timer(0.05).timeout.connect(old_hull.queue_free)

## Swaps old engine with the new one
func change_engine(new_engine_id: String):
	var new_engine: ShipEngine = Game.get_module(new_engine_id, 'engine').instantiate()
	var old_engine: ShipEngine = engine
	add_child(new_engine)
	engine = new_engine
	get_tree().create_timer(0.05).timeout.connect(old_engine.queue_free)

## Swaps old shield with the new one
func change_shield(new_shield_id: String):
	var new_shield: Shield = Game.get_module(new_shield_id, 'shield').instantiate()
	var old_shield: Shield = shield
	add_child(new_shield)
	shield = new_shield
	get_tree().create_timer(0.05).timeout.connect(old_shield.queue_free)