Battle Ships

extends Area2D

@export var player_index = 0
@onready var gun_anchor = $ShipSprite/Gun/ProjAnchor

var gem_count := 0
var health := 100

var can_shoot := true
var fire_rate := 0.25

var max_speed := 600.0
var velocity := Vector2(0, 0)
var boost_speed := 1500.0
var normal_speed := 600.0
var steering_factor := 10.0
var direction := Vector2(0, 0)

func _ready():
    area_entered.connect(_on_area_entered)
    set_health(health)

func _process(delta: float) -> void:
    _input_handler()
    var viewport_size := get_viewport_rect().size
    position.x = wrapf(position.x, 0, viewport_size.x)
    position.y = wrapf(position.y, 0, viewport_size.y)

    #direction.x = Input.get_axis("move_left", "move_right")
    #direction.y = Input.get_axis("move_up", "move_down")
    direction.x = Input.get_joy_axis(player_index, JOY_AXIS_LEFT_X)
    direction.y = Input.get_joy_axis(player_index, JOY_AXIS_LEFT_Y)

    if direction.length() > 1.0:
        direction = direction.normalized()

    var desired_velocity := max_speed * direction
    var steering_vector := desired_velocity - velocity
    velocity += steering_vector * steering_factor * delta
    position += velocity * delta

    if direction.length() > 0.0:
        get_node("ShipSprite").rotation = velocity.angle()

func _input_handler():
    if Input.is_joy_button_pressed(player_index, JOY_BUTTON_B) or Input.is_action_just_pressed("boost"):
        max_speed = boost_speed
        get_node("BoostTimer").start()
        $SFX_Boost.play()

    if Input.is_joy_button_pressed(player_index, JOY_BUTTON_X) or Input.is_action_just_pressed("shoot") and can_shoot == true:
        shoot()
        get_node("GunTimer").start(fire_rate)
        can_shoot = false

func _on_area_entered(area_that_entered):
    if area_that_entered.is_in_group("healing_item"):
        $SFX_Health.play()
        set_health(health + 10)
        print("health+")
    if area_that_entered.is_in_group("gem"):
        $SFX_Gem.play()
        set_gem_count(gem_count + 1)
        print("gem+")
    if area_that_entered.is_in_group("projectile"):
        $SFX_Hurt.play()
        set_health(health -5)
        print("health-")

func set_gem_count(new_gem_count):
    gem_count = new_gem_count
    get_node("UI/GemCount").text = "x" + str(gem_count)

func set_health(new_health):
    health = new_health
    get_node("UI/HealthBar").value = health

func shoot():
    const BULLET = preload("res://lessons/bullet.tscn")
    var newBullet = BULLET.instantiate()
    newBullet.global_position = gun_anchor.global_position
    newBullet.global_rotation = gun_anchor.global_rotation
    gun_anchor.add_child(newBullet)
    $SFX_Shoot.play()

func _on_boost_timer_timeout():
    max_speed = normal_speed

func _on_gun_timer_timeout():
    can_shoot = true