# placerholder test ability
class_name AbilityPlayer
extends AbilityBase


var middleX
var playerPos


func _ready() -> void:
    middleX = get_viewport_rect().size.x/2
    

func _process(_delta: float) -> void:
    playerPos = Vector2(middleX, get_viewport_rect().size.y*(0.75))
    $IdleCooldown.wait_time = attack_speed
    

func _get_enemies() -> Array:
    var enemies := get_tree().get_nodes_in_group("enemies")
    return enemies
    
    
func _get_num_enemies() -> int:
    var enemies := get_tree().get_nodes_in_group("enemies")
    return enemies.size()


func _get_distsq_to_player(enemy: Node) -> float:
    return enemy.position.distance_squared_to(playerPos)


func _get_angle_to_player(enemy: Node) -> float:
    return enemy.position.angle_to_point(playerPos)


func _get_target(enemies) -> Node:
    # var numEnemies := _get_num_enemies()
    # TODO implement range, i.e. closest within range
    var enemyDists
    var closestEnemy
    # get list of distances by mapping distance to each node in enemies
    enemyDists = enemies.map(_get_distsq_to_player)
    # get closest enemy by finding first index with min dist
    closestEnemy = enemies[enemyDists.find(enemyDists.min())]
            
    return closestEnemy


func _deal_idle_damage(enemiesList) -> void:
    var target = _get_target(enemiesList)
    if self.visible:
        target.damageTaken += attack_damage


func _on_idle_cooldown_timeout() -> void:
    var enemiesList = _get_enemies()
    if not enemiesList.is_empty():
        _deal_idle_damage(enemiesList)