Curve smoother function for Path2D

@tool
extends Path2D

# Exported variable to control the smoothness of the curve
@export var smoothness : float = 100

# Variables to store points and tangents
var last_point
var next_point
var start_tangent
var end_tangent

# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta):
    # Function to smooth the curve
    curve_smooth()

func curve_smooth():
    # Iterate through each point in the curve
    for i in curve.get_point_count():
        var pos =  curve.get_point_position(i)
        print(i)

        # Set the last point to the current point if it's the first point in the curve
        if i == 0:
            last_point = curve.get_point_position(0)
        else:
            last_point = curve.get_point_position(i - 1)

        # Set the next point to the next point in the curve or Vector2.ZERO if it's the last point
        if i != curve.get_point_count() - 1:
            next_point = curve.get_point_position(i + 1)
        else:
            next_point = Vector2.ZERO

        # Calculate directions and tangents
        var last_dir = (pos - last_point)
        var next_dir = (next_point - pos)

        start_tangent = (last_dir + next_dir) * smoothness
        end_tangent = (next_dir + last_dir) * (-1) * smoothness

        # Set tangents for points that are not the first or last
        if i != 0 and i != curve.get_point_count() - 1:
            curve.set_point_in(i, end_tangent)
            curve.set_point_out(i, start_tangent)