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307 lines
12 KiB
ReStructuredText
307 lines
12 KiB
ReStructuredText
:github_url: hide
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.. DO NOT EDIT THIS FILE!!!
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.. Generated automatically from Godot engine sources.
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.. Generator: https://github.com/godotengine/godot/tree/4.2/doc/tools/make_rst.py.
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.. XML source: https://github.com/godotengine/godot/tree/4.2/doc/classes/PathFollow3D.xml.
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.. _class_PathFollow3D:
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PathFollow3D
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============
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**继承：** :ref:`Node3D<class_Node3D>` **<** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`
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:ref:`Path3D<class_Path3D>` 的点采样器。
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.. rst-class:: classref-introduction-group
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描述
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----
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这个节点接受它的父节点 :ref:`Path3D<class_Path3D>` 并返回其中一个点的坐标，需要给定到第一个顶点的距离。
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在不编码移动图案的情况下，它可以使其他节点遵循一条路径。为此，节点必须是该节点的子节点。在该节点中设置 :ref:`progress<class_PathFollow3D_property_progress>` 后，后代节点会随之移动。
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.. rst-class:: classref-reftable-group
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属性
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----
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.. table::
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:widths: auto
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+-----------------------------------------------------+---------------------------------------------------------------------+-----------+
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| :ref:`bool<class_bool>` | :ref:`cubic_interp<class_PathFollow3D_property_cubic_interp>` | ``true`` |
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+-----------------------------------------------------+---------------------------------------------------------------------+-----------+
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| :ref:`float<class_float>` | :ref:`h_offset<class_PathFollow3D_property_h_offset>` | ``0.0`` |
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+-----------------------------------------------------+---------------------------------------------------------------------+-----------+
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| :ref:`bool<class_bool>` | :ref:`loop<class_PathFollow3D_property_loop>` | ``true`` |
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+-----------------------------------------------------+---------------------------------------------------------------------+-----------+
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| :ref:`float<class_float>` | :ref:`progress<class_PathFollow3D_property_progress>` | ``0.0`` |
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+-----------------------------------------------------+---------------------------------------------------------------------+-----------+
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| :ref:`float<class_float>` | :ref:`progress_ratio<class_PathFollow3D_property_progress_ratio>` | ``0.0`` |
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+-----------------------------------------------------+---------------------------------------------------------------------+-----------+
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| :ref:`RotationMode<enum_PathFollow3D_RotationMode>` | :ref:`rotation_mode<class_PathFollow3D_property_rotation_mode>` | ``3`` |
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+-----------------------------------------------------+---------------------------------------------------------------------+-----------+
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| :ref:`bool<class_bool>` | :ref:`tilt_enabled<class_PathFollow3D_property_tilt_enabled>` | ``true`` |
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+-----------------------------------------------------+---------------------------------------------------------------------+-----------+
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| :ref:`bool<class_bool>` | :ref:`use_model_front<class_PathFollow3D_property_use_model_front>` | ``false`` |
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+-----------------------------------------------------+---------------------------------------------------------------------+-----------+
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| :ref:`float<class_float>` | :ref:`v_offset<class_PathFollow3D_property_v_offset>` | ``0.0`` |
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+-----------------------------------------------------+---------------------------------------------------------------------+-----------+
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.. rst-class:: classref-reftable-group
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方法
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----
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.. table::
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:widths: auto
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+---------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`Transform3D<class_Transform3D>` | :ref:`correct_posture<class_PathFollow3D_method_correct_posture>` **(** :ref:`Transform3D<class_Transform3D>` transform, :ref:`RotationMode<enum_PathFollow3D_RotationMode>` rotation_mode **)** |static| |
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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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枚举
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----
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.. _enum_PathFollow3D_RotationMode:
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.. rst-class:: classref-enumeration
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enum **RotationMode**:
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.. _class_PathFollow3D_constant_ROTATION_NONE:
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.. rst-class:: classref-enumeration-constant
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:ref:`RotationMode<enum_PathFollow3D_RotationMode>` **ROTATION_NONE** = ``0``
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禁止该 PathFollow3D 旋转。
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.. _class_PathFollow3D_constant_ROTATION_Y:
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.. rst-class:: classref-enumeration-constant
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:ref:`RotationMode<enum_PathFollow3D_RotationMode>` **ROTATION_Y** = ``1``
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允许该 PathFollow3D 仅在 Y 轴上旋转。
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.. _class_PathFollow3D_constant_ROTATION_XY:
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.. rst-class:: classref-enumeration-constant
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:ref:`RotationMode<enum_PathFollow3D_RotationMode>` **ROTATION_XY** = ``2``
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允许该 PathFollow3D 同时在 X 和 Y 轴上旋转。
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.. _class_PathFollow3D_constant_ROTATION_XYZ:
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.. rst-class:: classref-enumeration-constant
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:ref:`RotationMode<enum_PathFollow3D_RotationMode>` **ROTATION_XYZ** = ``3``
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允许该 PathFollow3D 在任意轴上旋转。
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.. _class_PathFollow3D_constant_ROTATION_ORIENTED:
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.. rst-class:: classref-enumeration-constant
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:ref:`RotationMode<enum_PathFollow3D_RotationMode>` **ROTATION_ORIENTED** = ``4``
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使用 :ref:`Curve3D<class_Curve3D>` 中的向上向量信息来强制定向。该旋转模式需要将 :ref:`Path3D<class_Path3D>` 的 :ref:`Curve3D.up_vector_enabled<class_Curve3D_property_up_vector_enabled>` 属性设置为 ``true``\ 。
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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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属性说明
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--------
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.. _class_PathFollow3D_property_cubic_interp:
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.. rst-class:: classref-property
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:ref:`bool<class_bool>` **cubic_interp** = ``true``
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.. rst-class:: classref-property-setget
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- void **set_cubic_interpolation** **(** :ref:`bool<class_bool>` value **)**
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- :ref:`bool<class_bool>` **get_cubic_interpolation** **(** **)**
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如果为 ``true``\ ，则两个缓存点之间的位置将被三次插值，否则将被线性插值。
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沿着 :ref:`Path3D<class_Path3D>` 的 :ref:`Curve3D<class_Curve3D>` 的点在使用前已被预先计算，以便更快地计算。然后在两个相邻缓存点之间，插值计算请求的偏移处的点。如果曲线急转弯，这可能会出现问题，因为缓存的点可能没有足够紧密地跟随曲线。
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这个问题有两个答案：要么增加缓存点的数量，并增加内存消耗；要么在两个点之间进行三次插值，代价是（稍微）降低计算速度。
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.. rst-class:: classref-item-separator
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----
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.. _class_PathFollow3D_property_h_offset:
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.. rst-class:: classref-property
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:ref:`float<class_float>` **h_offset** = ``0.0``
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.. rst-class:: classref-property-setget
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- void **set_h_offset** **(** :ref:`float<class_float>` value **)**
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- :ref:`float<class_float>` **get_h_offset** **(** **)**
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节点沿曲线的偏移量。
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.. rst-class:: classref-item-separator
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----
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.. _class_PathFollow3D_property_loop:
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.. rst-class:: classref-property
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:ref:`bool<class_bool>` **loop** = ``true``
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.. rst-class:: classref-property-setget
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- void **set_loop** **(** :ref:`bool<class_bool>` value **)**
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- :ref:`bool<class_bool>` **has_loop** **(** **)**
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如果为 ``true``\ ，路径长度以外的任何偏移都将环绕，而不是在结束时停止。对于循环路径使用它。
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.. rst-class:: classref-item-separator
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----
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.. _class_PathFollow3D_property_progress:
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.. rst-class:: classref-property
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:ref:`float<class_float>` **progress** = ``0.0``
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.. rst-class:: classref-property-setget
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- void **set_progress** **(** :ref:`float<class_float>` value **)**
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- :ref:`float<class_float>` **get_progress** **(** **)**
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到第一个顶点的距离，单位为沿路径经过的 3D 单位数。改变这个值会将这个节点的位置设置为路径上的某个点。
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.. rst-class:: classref-item-separator
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----
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.. _class_PathFollow3D_property_progress_ratio:
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.. rst-class:: classref-property
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:ref:`float<class_float>` **progress_ratio** = ``0.0``
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.. rst-class:: classref-property-setget
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- void **set_progress_ratio** **(** :ref:`float<class_float>` value **)**
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- :ref:`float<class_float>` **get_progress_ratio** **(** **)**
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到第一个顶点的距离，将 0.0 作为第一个顶点，1.0 作为最后一个顶点。这只是表示路径内偏移量的另一种方式，提供的偏移量在内部会与路径的长度相乘。
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.. rst-class:: classref-item-separator
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----
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.. _class_PathFollow3D_property_rotation_mode:
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.. rst-class:: classref-property
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:ref:`RotationMode<enum_PathFollow3D_RotationMode>` **rotation_mode** = ``3``
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.. rst-class:: classref-property-setget
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- void **set_rotation_mode** **(** :ref:`RotationMode<enum_PathFollow3D_RotationMode>` value **)**
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- :ref:`RotationMode<enum_PathFollow3D_RotationMode>` **get_rotation_mode** **(** **)**
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允许或禁止在一个或多个轴上旋转，这取决于使用的 :ref:`RotationMode<enum_PathFollow3D_RotationMode>` 常量。
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.. rst-class:: classref-item-separator
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----
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.. _class_PathFollow3D_property_tilt_enabled:
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.. rst-class:: classref-property
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:ref:`bool<class_bool>` **tilt_enabled** = ``true``
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.. rst-class:: classref-property-setget
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- void **set_tilt_enabled** **(** :ref:`bool<class_bool>` value **)**
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- :ref:`bool<class_bool>` **is_tilt_enabled** **(** **)**
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如果为 ``true``\ ，则 :ref:`Curve3D<class_Curve3D>` 的倾斜属性生效。
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.. rst-class:: classref-item-separator
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----
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.. _class_PathFollow3D_property_use_model_front:
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.. rst-class:: classref-property
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:ref:`bool<class_bool>` **use_model_front** = ``false``
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.. rst-class:: classref-property-setget
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- void **set_use_model_front** **(** :ref:`bool<class_bool>` value **)**
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- :ref:`bool<class_bool>` **is_using_model_front** **(** **)**
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如果为 ``true``\ ，则沿路径移动的节点会将 +Z 轴作为前方向进行朝向。另见 :ref:`Vector3.FORWARD<class_Vector3_constant_FORWARD>` 和 :ref:`Vector3.MODEL_FRONT<class_Vector3_constant_MODEL_FRONT>`\ 。
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.. rst-class:: classref-item-separator
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----
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.. _class_PathFollow3D_property_v_offset:
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.. rst-class:: classref-property
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:ref:`float<class_float>` **v_offset** = ``0.0``
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.. rst-class:: classref-property-setget
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- void **set_v_offset** **(** :ref:`float<class_float>` value **)**
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- :ref:`float<class_float>` **get_v_offset** **(** **)**
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节点垂直于曲线的偏移量。
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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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方法说明
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--------
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.. _class_PathFollow3D_method_correct_posture:
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.. rst-class:: classref-method
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:ref:`Transform3D<class_Transform3D>` **correct_posture** **(** :ref:`Transform3D<class_Transform3D>` transform, :ref:`RotationMode<enum_PathFollow3D_RotationMode>` rotation_mode **)** |static|
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校正 ``transform``\ 。\ ``rotation_mode`` 隐式指定如何计算姿势（向前、向上和侧向）。
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.. |virtual| replace:: :abbr:`virtual (本方法通常需要用户覆盖才能生效。)`
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.. |const| replace:: :abbr:`const (本方法没有副作用。不会修改该实例的任何成员变量。)`
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.. |vararg| replace:: :abbr:`vararg (本方法除了在此处描述的参数外，还能够继续接受任意数量的参数。)`
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.. |constructor| replace:: :abbr:`constructor (本方法用于构造某个类型。)`
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.. |static| replace:: :abbr:`static (调用本方法无需实例，所以可以直接使用类名调用。)`
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.. |operator| replace:: :abbr:`operator (本方法描述的是使用本类型作为左操作数的有效操作符。)`
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.. |bitfield| replace:: :abbr:`BitField (这个值是由下列标志构成的位掩码整数。)`
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