Godot Engine Button Left & Right clicks

# Extends BaseButton functionality to distinguish
# right and left mouse clicks.
# So you can use this script with any type of button.

extends BaseButton

signal left_click
signal right_click

func _gui_input(event):
    if event is InputEventMouseButton and !event.pressed and get_rect().has_point(event.position):
        match event.button_index:
            BUTTON_LEFT:
                emit_signal("left_click")
            BUTTON_RIGHT:
                emit_signal("right_click")