class_name Ball
extends CharacterBody2D

const y_offset = -10
const player_path = "/root/Main/TileMap/Player"
const enemy_path = "/root/Main/TileMap/Enemy"
signal notify_enemy(ball_target: Vector2i)
var speed = 100
var target = Vector2.ZERO
@onready var tile_map: TileMap = get_parent()

func _ready():
	target.y += y_offset
	connect_player()
	connect_enemy()

func _physics_process(delta):
	position = position.move_toward(target, delta * speed)

func update_target(new_target: Vector2i):
	target = tile_map.map_to_local(new_target) + Vector2(0, y_offset)
	# Debug
	tile_map.reset_and_set_target_cell(new_target)

func _on_player_hit_ball():
	var new_target: Vector2i = tile_map.get_random_top_cell()
	update_target(new_target)
	notify_enemy.emit(new_target)

func _on_enemy_hit_ball():
	var new_target: Vector2i = tile_map.get_random_bottom_cell()
	update_target(new_target)
	notify_enemy.emit(new_target)

func connect_player():
	var player = get_node(player_path)
	assert(player)
	player.hit_ball.connect(_on_player_hit_ball)

func connect_enemy():
	var enemy = get_node(enemy_path)
	assert(enemy)
	enemy.hit_ball.connect(_on_enemy_hit_ball)