extends KinematicBody2D

onready var SNOWBALL_SCENE: Resource = preload('res://Enemies/Snowball.tscn')

var player: KinematicBody2D = null
var velocity: Vector2 = Vector2.ZERO
const SPEED: int = 50
var health: int = 2


func _physics_process(_delta: float) -> void:
    velocity = Vector2.ZERO

    if player and position.distance_to(player.position) > 1:
        velocity = position.direction_to(player.position).normalized() * SPEED

    velocity = move_and_slide(velocity)
    return


func _on_Area2D_body_entered(body: Node) -> void:
    if body != self && !(body.name.begins_with("tree")) && !(body.name.begins_with("snowmen_enemy")) && !(body.name.begins_with("wall")):
        player = body
    return


func _on_Area2D_body_exited(body: Node) -> void:
    if !(body.name.begins_with("tree")) && !(body.name.begins_with("snowmen_enemy")) && !(body.name.begins_with("wall")):
        player = null
    return


func fire() -> void:
    var snowball = SNOWBALL_SCENE.instance()
    snowball.position = get_global_position()
    snowball.player = player
    get_parent().add_child(snowball)
    $Timer.set_wait_time(1)
    return


func _on_Timer_timeout() -> void:
    if player != null:
        fire()
    return


func _on_player_detector_area_entered(area: Area2D) -> void:
    if area.get_parent().name == 'Player':
        player = area.get_parent()
    return


func _on_player_detector_area_exited(_area: Area2D) -> void:
    player = null
    return


func _on_hitbox_area_entered(area: Area2D) -> void:
    if area.is_in_group('player_weapon_1'):
        health -= 1
    elif area.is_in_group('player_weapon_2'):
        health -= 2

    if health <= 0:
        call_deferred('queue_free')
    return