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- class_name Focus
- extends Camera2D
- # Transition to next slide and focus current slide
- signal ended
- @export_group("Tween caracteristics", "tween_")
- @export var tween_is_parallel: bool = false
- @export_group("Move", "move_")
- @export var move_duration: float = 1.0
- @export var move_trans: Tween.TransitionType = Tween.TRANS_SINE
- @export var move_ease: Tween.EaseType = Tween.EASE_IN_OUT
- @export_group("Scope", "scope_")
- @export var scope_duration: float = 1.0
- @export var scope_trans: Tween.TransitionType = Tween.TRANS_SINE
- @export var scope_closer_ease: Tween.EaseType = Tween.EASE_IN
- @export var scope_wider_ease: Tween.EaseType = Tween.EASE_OUT
- var tween: Tween
- var scope: Vector2 : get = get_scope, set = set_scope
- func focus_on(pos: Vector2, scalar_scale: float) -> void:
- if tween:
- tween.kill()
- var target_scope = Vector2.ONE * scalar_scale
- var is_wider = target_scope.x > get_scope().x
- var scope_ease = scope_wider_ease if is_wider else scope_closer_ease
- tween = create_tween().set_parallel(tween_is_parallel)
- tween.tween_property(self, "position", pos, move_duration).set_trans(move_trans).set_ease(move_ease)
- tween.tween_property(self, "scope", target_scope, scope_duration).set_trans(scope_trans).set_ease(scope_ease)
- tween.tween_callback(end)
- func end():
- ended.emit()
- func get_scope() -> Vector2:
- return _invert_vector(get_zoom())
- func set_scope(new_scope: Vector2) -> void:
- assert(new_scope.x > 0)
- assert(new_scope.y > 0)
- set_zoom(_invert_vector(new_scope))
- func _on_show_new_focus(pos: Vector2, scalar_scale: float) -> void:
- focus_on(pos, scalar_scale)
- func _invert_vector(vec: Vector2) -> Vector2:
- return Vector2(1.0 / vec.x, 1.0 / vec.y)
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