extends CharacterBody2D

# Serialized Variables
@export var speed = 20
@export_range(0, 1) var dampning_function = 0.6
@export var animation_player : AnimationPlayer


# Engine Callbacks 
func _physics_process(delta : float):
	move_player(delta)
	pass



# Getting player input into a vector
func get_move_vector():
	var input_direction = Input.get_vector("move_left", "move_right", "move_up", "move_down").normalized()
	return input_direction



# Calculates the players velocity based on input and moves it
func move_player(delta : float):
	# Damp Players Velocity if no Input
	if get_move_vector() == Vector2.ZERO:
		self.velocity = self.velocity * (1 - min(1, dampning_function * 60 * delta)) 
	
	# Set Player's velocity to the Input direction with a magnitude of Speed synced with frame rate
	else:
		self.velocity = get_move_vector().normalized() * speed * delta * 60
	
	# Animate the player
	animate_player_movement()
	
	# Finally, update the Player's physics calculations
	self.move_and_slide()
	pass



func animate_player_movement():
	var move_vector = get_move_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") 
		_: animation_player.play("Idle")