class_name Slime extends Area2D

@onready var right_cast: RayCast2D = $RightCast
@onready var left_cast: RayCast2D = $LeftCast
@onready var right_down_cast: RayCast2D = $RightDownCast
@onready var left_down_cast: RayCast2D = $LeftDownCast
@onready var slime_graphic: AnimatedSprite2D = $SlimeGraphic

var speed = 100
enum FaceDirection {RIGHT, LEFT}
var facing:FaceDirection = FaceDirection.RIGHT
#direction 1 move to right, 0 no movement, -1 to the left
var direction = 1

enum EnemyStates {RUN, ATTACK, SPAWN}
var currentEnemyState:EnemyStates = EnemyStates.SPAWN


# Called when the node enters the scene tree for the first time.
func _ready() -> void:
	pass # Replace with function body.


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta: float) -> void:
	handleMovement(delta)
	handleStates()
	handleAnimation()
	handleCollisions()
	
func handleMovement(delta)->void:
	position.x += direction*speed*delta
	match facing:
		FaceDirection.LEFT:
			slime_graphic.flip_h = true
		FaceDirection.RIGHT:
			slime_graphic.flip_h = false

func handleStates()->void:
	match currentEnemyState:
		EnemyStates.SPAWN when not direction ==0:
			currentEnemyState = EnemyStates.RUN
			
func handleAnimation()->void:
	match currentEnemyState:
		EnemyStates.SPAWN:
			slime_graphic.play("spawn")
		EnemyStates.RUN:
			slime_graphic.play("run")
		EnemyStates.ATTACK:
			slime_graphic.play("attack")
		
func handleCollisions()->void:
	if not right_down_cast.is_colliding():
		direction = -1
		facing = FaceDirection.LEFT
	if not left_down_cast.is_colliding():
		direction = 1
		facing= FaceDirection.RIGHT
	if right_cast.is_colliding() and not right_cast.get_collider() is Player:
		direction = -1
		facing = FaceDirection.LEFT
	if left_cast.is_colliding() and not left_cast.get_collider() is Player:
		direction = 1
		facing= FaceDirection.RIGHT
		
		
	pass
func _on_body_entered(body: Node2D) -> void:
	print("Slime Attack!")


func _on_animation_finished() -> void:
	match currentEnemyState:
		EnemyStates.SPAWN:
			currentEnemyState = EnemyStates.RUN
			direction = 1
		EnemyStates.ATTACK:
			currentEnemyState = EnemyStates.RUN
			direction = (randi() % 2) *2 -1