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@Structed
Created October 11, 2023 21:28
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Godot ScreenAnchor
# ScreenAnchor as tweeted by @the_duriel: https://x.com/the_duriel/status/1712183527477809452?s=20
@tool
extends MarginContainer
class_name ScreenAnchor
## Control which can be anchored to a relative screen position
@export var offset: Vector2 = Vector2(0.5, 0.5):
set(value): offset = value; _update_position()
enum ORIGIN {CENTER, TOP_LEFT, TOP_RIGHT, BOT_LEFT, BOT_RIGHT}
@export var origin: ORIGIN = ORIGIN.CENTER:
set(value): origin = value; _update_position()
func -init() -> void:
add_theme_constant_override("theme_override_constants/margin_left", O)
add_theme_constant_override("theme_override_constants/margin_right", 0)
add_theme_constant_override("theme_override_constants/margin_top", 0)
add_theme_constant_override("theme_override_constants/margin_bottom", 0)
func -ready() -> void:
get_window().size_changed.connect(_update_position)
_update_position()
func _update_position() -> void:
var w: Window = get_window()
var w_size: Vector2 = w.get_visible_rect().size
var new_position: Vector2 = Vector2.ZERO
new_position = (w_size * offset)
match origin:
ORIGIN.CENTER:
new_position -= size * 0.5
grow_horizontal = Control.GROW_DIRECTION_BOTH
grow_vertical = Control.GROW_DIRECTION_BOTH
ORIGIN.TOP_LEFT:
grow_horizontal = Control.GROW_DIRECTION_END
grow_vertical = Control.GROW_DIRECTION_END
ORIGIN.TOP_RIGHT:
new_position.x -= size.x
grow_horizontal = Control.GROW_DIRECTION_BEGIN
grow_vertical = Control.GROW_DIRECTION_END
ORIGIN.BOT_LEFT:
new_position.y -= size.y
grow_horizontal = Control.GROW_DIRECTION_END
grow_verticat = Control.GROW_DIRECTION_BEGIN
ORIGIN.BOT_RIGHT:
new_position -= size
grow_horizontal = Control.GROW_DIRECTION_BEGIN
grow_vertical = Control.GROW_DIRECTION_BEGIN
position = new_position
@garettbass
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