extends CharacterBody2D

@export var speed = 20
@export_range(0, 1) var damping_factor = 0.6
@export var animation_player : AnimationPlayer

func _physics_process(delta : float):
	update_player_movement(delta)
	pass

func get_move_input_vector() -> Vector2:
	var input_direction = Input.get_vector("move_left", "move_right", "move_up", "move_down").normalized()
	return input_direction

func update_player_movement(delta : float):
	var input = get_move_input_vector()
	
	# Damp Movement if not moving, Accelerate if Moving
	var is_moving = input != Vector2.ZERO
	self.velocity = input * speed * delta * 60 if is_moving else self.velocity * (1 - min(1, damping_factor * 60 * delta)) 
	
	update_player_animation()
	
	# Update Objects Physics calculations
	self.move_and_slide()
	pass

func update_player_animation():
	var move_vector = get_move_input_vector()
	match move_vector:
		Vector2.ZERO: animation_player.play("Idle")
		Vector2.LEFT: animation_player.play("MoveLeft") 
		Vector2.RIGHT: animation_player.play("MoveRight") 
		Vector2.UP: animation_player.play("MoveUp") 
		Vector2.DOWN: animation_player.play("MoveDown") 
		_: handle_diagonal_animations(move_vector)
	pass

func handle_diagonal_animations(dir : Vector2):
	if (dir.y > 0 and dir.x < 0) or (dir.y < 0 and dir.x < 0): animation_player.play("MoveLeft")
	elif (dir.y > 0 and dir.x > 0) or (dir.y < 0 and dir.x > 0): animation_player.play("MoveRight")
	else: animation_player.play("Idle")
	pass