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163 lines
8.9 KiB
ReStructuredText
163 lines
8.9 KiB
ReStructuredText
:github_url: hide
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.. _class_ParallaxBackground:
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ParallaxBackground
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==================
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**已棄用：** Use the :ref:`Parallax2D<class_Parallax2D>` node instead.
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**繼承：** :ref:`CanvasLayer<class_CanvasLayer>` **<** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`
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用於建立視差滾動背景的節點。
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.. rst-class:: classref-introduction-group
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說明
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----
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ParallaxBackground 使用一個或多個 :ref:`ParallaxLayer<class_ParallaxLayer>` 子節點來建立視差效果。每個 :ref:`ParallaxLayer<class_ParallaxLayer>` 可以使用 :ref:`ParallaxLayer.motion_offset<class_ParallaxLayer_property_motion_offset>` 以不同的速度移動。這在 2D 遊戲中可以創造一種深度錯覺。如果沒有與 :ref:`Camera2D<class_Camera2D>` 一起使用，你必須手動計算 :ref:`scroll_offset<class_ParallaxBackground_property_scroll_offset>`\ 。
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\ **注意：**\ 每個 **ParallaxBackground** 都是在各自的 :ref:`Viewport<class_Viewport>` 中繪製的，無法在不同 :ref:`Viewport<class_Viewport>` 之間共用，見 :ref:`CanvasLayer.custom_viewport<class_CanvasLayer_property_custom_viewport>`\ 。在分屏遊戲等使用多個 :ref:`Viewport<class_Viewport>` 的場景下，你需要每個需要繪製的 :ref:`Viewport<class_Viewport>` 建立單獨的 **ParallaxBackground**\ 。
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.. rst-class:: classref-reftable-group
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屬性
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----
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.. table::
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:widths: auto
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+-------------------------------+-----------------------------------------------------------------------------------------------+---------------------------------------------------------------------------+
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| :ref:`int<class_int>` | layer | ``-100`` (overrides :ref:`CanvasLayer<class_CanvasLayer_property_layer>`) |
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+-------------------------------+-----------------------------------------------------------------------------------------------+---------------------------------------------------------------------------+
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| :ref:`Vector2<class_Vector2>` | :ref:`scroll_base_offset<class_ParallaxBackground_property_scroll_base_offset>` | ``Vector2(0, 0)`` |
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+-------------------------------+-----------------------------------------------------------------------------------------------+---------------------------------------------------------------------------+
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| :ref:`Vector2<class_Vector2>` | :ref:`scroll_base_scale<class_ParallaxBackground_property_scroll_base_scale>` | ``Vector2(1, 1)`` |
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+-------------------------------+-----------------------------------------------------------------------------------------------+---------------------------------------------------------------------------+
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| :ref:`bool<class_bool>` | :ref:`scroll_ignore_camera_zoom<class_ParallaxBackground_property_scroll_ignore_camera_zoom>` | ``false`` |
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+-------------------------------+-----------------------------------------------------------------------------------------------+---------------------------------------------------------------------------+
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| :ref:`Vector2<class_Vector2>` | :ref:`scroll_limit_begin<class_ParallaxBackground_property_scroll_limit_begin>` | ``Vector2(0, 0)`` |
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+-------------------------------+-----------------------------------------------------------------------------------------------+---------------------------------------------------------------------------+
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| :ref:`Vector2<class_Vector2>` | :ref:`scroll_limit_end<class_ParallaxBackground_property_scroll_limit_end>` | ``Vector2(0, 0)`` |
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+-------------------------------+-----------------------------------------------------------------------------------------------+---------------------------------------------------------------------------+
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| :ref:`Vector2<class_Vector2>` | :ref:`scroll_offset<class_ParallaxBackground_property_scroll_offset>` | ``Vector2(0, 0)`` |
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+-------------------------------+-----------------------------------------------------------------------------------------------+---------------------------------------------------------------------------+
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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屬性說明
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--------
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.. _class_ParallaxBackground_property_scroll_base_offset:
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.. rst-class:: classref-property
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:ref:`Vector2<class_Vector2>` **scroll_base_offset** = ``Vector2(0, 0)`` :ref:`🔗<class_ParallaxBackground_property_scroll_base_offset>`
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.. rst-class:: classref-property-setget
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- |void| **set_scroll_base_offset**\ (\ value\: :ref:`Vector2<class_Vector2>`\ )
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- :ref:`Vector2<class_Vector2>` **get_scroll_base_offset**\ (\ )
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所有 :ref:`ParallaxLayer<class_ParallaxLayer>` 子元素的基本位置偏移。
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.. rst-class:: classref-item-separator
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----
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.. _class_ParallaxBackground_property_scroll_base_scale:
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.. rst-class:: classref-property
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:ref:`Vector2<class_Vector2>` **scroll_base_scale** = ``Vector2(1, 1)`` :ref:`🔗<class_ParallaxBackground_property_scroll_base_scale>`
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.. rst-class:: classref-property-setget
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- |void| **set_scroll_base_scale**\ (\ value\: :ref:`Vector2<class_Vector2>`\ )
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- :ref:`Vector2<class_Vector2>` **get_scroll_base_scale**\ (\ )
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所有 :ref:`ParallaxLayer<class_ParallaxLayer>` 子元素的基本移動比例。
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.. rst-class:: classref-item-separator
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----
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.. _class_ParallaxBackground_property_scroll_ignore_camera_zoom:
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.. rst-class:: classref-property
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:ref:`bool<class_bool>` **scroll_ignore_camera_zoom** = ``false`` :ref:`🔗<class_ParallaxBackground_property_scroll_ignore_camera_zoom>`
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.. rst-class:: classref-property-setget
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- |void| **set_ignore_camera_zoom**\ (\ value\: :ref:`bool<class_bool>`\ )
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- :ref:`bool<class_bool>` **is_ignore_camera_zoom**\ (\ )
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為 ``true`` 時，\ :ref:`ParallaxLayer<class_ParallaxLayer>` 子元素將不受相機縮放級別的影響。
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.. rst-class:: classref-item-separator
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----
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.. _class_ParallaxBackground_property_scroll_limit_begin:
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.. rst-class:: classref-property
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:ref:`Vector2<class_Vector2>` **scroll_limit_begin** = ``Vector2(0, 0)`` :ref:`🔗<class_ParallaxBackground_property_scroll_limit_begin>`
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.. rst-class:: classref-property-setget
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- |void| **set_limit_begin**\ (\ value\: :ref:`Vector2<class_Vector2>`\ )
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- :ref:`Vector2<class_Vector2>` **get_limit_begin**\ (\ )
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開始滾動的左上角限制。如果相機超出這個限制，背景將停止滾動。必須低於 :ref:`scroll_limit_end<class_ParallaxBackground_property_scroll_limit_end>` 才能工作。
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.. rst-class:: classref-item-separator
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----
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.. _class_ParallaxBackground_property_scroll_limit_end:
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.. rst-class:: classref-property
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:ref:`Vector2<class_Vector2>` **scroll_limit_end** = ``Vector2(0, 0)`` :ref:`🔗<class_ParallaxBackground_property_scroll_limit_end>`
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.. rst-class:: classref-property-setget
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- |void| **set_limit_end**\ (\ value\: :ref:`Vector2<class_Vector2>`\ )
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- :ref:`Vector2<class_Vector2>` **get_limit_end**\ (\ )
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右下角限制滾動結束。如果相機超出這個限制，背景將停止滾動。必須高於 :ref:`scroll_limit_begin<class_ParallaxBackground_property_scroll_limit_begin>` 才能工作。
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.. rst-class:: classref-item-separator
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----
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.. _class_ParallaxBackground_property_scroll_offset:
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.. rst-class:: classref-property
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:ref:`Vector2<class_Vector2>` **scroll_offset** = ``Vector2(0, 0)`` :ref:`🔗<class_ParallaxBackground_property_scroll_offset>`
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.. rst-class:: classref-property-setget
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- |void| **set_scroll_offset**\ (\ value\: :ref:`Vector2<class_Vector2>`\ )
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- :ref:`Vector2<class_Vector2>` **get_scroll_offset**\ (\ )
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視差背景的滾動值。使用 :ref:`Camera2D<class_Camera2D>` 時會自動計算，但也可用於手動管理無相機時的滾動。
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.. |virtual| replace:: :abbr:`virtual (本方法通常需要使用者覆寫才能生效。)`
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.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
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.. |const| replace:: :abbr:`const (本方法沒有副作用。不會修改該實例的任何成員變數。)`
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.. |vararg| replace:: :abbr:`vararg (本方法除了這裡描述的參數外，還可以接受任意數量的參數。)`
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.. |constructor| replace:: :abbr:`constructor (本方法用於建構一個型別。)`
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.. |static| replace:: :abbr:`static (本方法無需實例即可呼叫，因此可以直接使用類別名稱呼叫。)`
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.. |operator| replace:: :abbr:`operator (本方法描述將本型別作為左運算元時可用的有效運算子。)`
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.. |bitfield| replace:: :abbr:`BitField (此值是由下列旗標組成的位元遮罩整數。)`
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.. |void| replace:: :abbr:`void (無回傳值。)`
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