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Merge pull request #18071 from denisw/navigation2d-docs
[DOCS] Navigation & Navigation2D
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<?xml version="1.0" encoding="UTF-8" ?>
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<class name="Navigation" inherits="Spatial" category="Core" version="3.1">
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<brief_description>
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A collection of [code]NavigationMesh[/code] resources and methods used for pathfinding.
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Mesh-based navigation and pathfinding node.
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</brief_description>
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<description>
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The Navigation node is used for basic or advanced navigation. By default it will automatically collect all child [code]NavigationMesh[/code] resources, but they can also be added on the fly through scripting. It can be used for generating a simple path between two points or it can be used to ensure that a navigation agent is angled perfectly to the terrain it is navigating.
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Provides navigation and pathfinding within a collection of [NavigationMesh]es. By default these will be automatically collected from child [NavigationMeshInstance] nodes, but they can also be added on the fly with [method navmesh_add]. In addition to basic pathfinding, this class also assists with aligning navigation agents with the meshes they are navigating on.
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</description>
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<tutorials>
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</tutorials>
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<argument index="0" name="to_point" type="Vector3">
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</argument>
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<description>
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Returns the closest navigation point to the point passed.
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Returns the navigation point closest to the point given. Points are in local coordinate space.
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</description>
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</method>
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<method name="get_closest_point_normal">
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<argument index="0" name="to_point" type="Vector3">
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</argument>
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<description>
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Returns the surface normal of the navigation mesh at the point passed. For instance, if the point passed was at a 45 degree slope it would return something like (0.5,0.5,0). This is useful for rotating a navigation agent in accordance with the [code]NavigationMesh[/code].
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Returns the surface normal at the navigation point closest to the point given. Useful for rotating a navigation agent according to the navigation mesh it moves on.
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</description>
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</method>
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<method name="get_closest_point_owner">
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<argument index="0" name="to_point" type="Vector3">
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</argument>
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<description>
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Returns the nearest [code]NavigationMeshInstance[/code] to the point passed.
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Returns the owner of the [NavigationMesh] which contains the navigation point closest to the point given. This is usually a [NavigtionMeshInstance]. For meshes added via [method navmesh_add], returns the owner that was given (or [code]null[/code] if the [code]owner[/code] parameter was omitted).
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</description>
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</method>
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<method name="get_closest_point_to_segment">
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<argument index="2" name="use_collision" type="bool" default="false">
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</argument>
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<description>
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Returns the nearest point to the line segment passed. The third optional parameter takes collisions into account.
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Returns the navigation point closest to the given line segment. When enabling [code]use_collision[/code], only considers intersection points between segment and navigation meshes. If multiple intersection points are found, the one closest to the segment start point is returned.
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</description>
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</method>
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<method name="get_simple_path">
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<argument index="2" name="optimize" type="bool" default="true">
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</argument>
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<description>
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Returns a path of points as a [code]PoolVector3Array[/code]. If [code]optimize[/code] is false the [code]NavigationMesh[/code] agent properties will be taken into account, otherwise it will return the nearest path and ignore agent radius, height, etc.
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Returns the path between two given points. Points are in local coordinate space. If [code]optimize[/code] is [code]true[/code] (the default), the agent properties associated with each [NavigationMesh] (raidus, height, etc.) are considered in the path calculation, otherwise they are ignored.
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</description>
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</method>
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<method name="navmesh_add">
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<argument index="2" name="owner" type="Object" default="null">
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</argument>
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<description>
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Adds a [code]NavigationMesh[/code] to the list of NavigationMesh's in this node. Returns an id. Its position, rotation and scale are associated with the [code]Transform[/code] passed. The [code]Node[/code] (or [code]Object[/code]) that owns this node is an optional parameter.
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Adds a [NavigationMesh]. Returns an ID for use with [method navmesh_remove] or [method navmesh_set_transform]. If given, a [Transform2D] is applied to the polygon. The optional [code]owner[/code] is used as return value for [method get_closest_point_owner].
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</description>
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</method>
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<method name="navmesh_remove">
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<argument index="0" name="id" type="int">
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</argument>
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<description>
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Removes a [code]NavigationMesh[/code] from the list of NavigationMesh's in this node.
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Removes the [NavigationMesh] with the given ID.
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</description>
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</method>
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<method name="navmesh_set_transform">
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<argument index="1" name="xform" type="Transform">
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</argument>
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<description>
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Associates a [code]NavigationMesh[/code]'s id with a [code]Transform[/code]. Its position, rotation and scale are based on the [code]Transform[/code] passed.
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Sets the transform applied to the [NavigationMesh] with the given ID.
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</description>
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</method>
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</methods>
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<members>
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<member name="up_vector" type="Vector3" setter="set_up_vector" getter="get_up_vector">
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Defines which direction is up. The default defines 0,1,0 as up which is the world up direction. To make this a ceiling use 0,-1,0 to define down as up.
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Defines which direction is up. By default this is [code](0, 1, 0)[/code], which is the world up direction.
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</member>
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</members>
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<constants>
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<?xml version="1.0" encoding="UTF-8" ?>
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<class name="Navigation2D" inherits="Node2D" category="Core" version="3.1">
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<brief_description>
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Class to assist with character navigation and pathfinding.
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2D navigation and pathfinding node.
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</brief_description>
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<description>
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Navigation2D provides navigation and pathfinding within a 2D area, specified as a collection of [NavigationPolygon] resources. By default these are automatically collected from child [NavigationPolygonInstance] nodes, but they can also be added on the fly with [method navpoly_add].
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</description>
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<tutorials>
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</tutorials>
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<argument index="0" name="to_point" type="Vector2">
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</argument>
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<description>
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Returns the navigation point closest to the point given. Points are in local coordinate space.
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</description>
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</method>
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<method name="get_closest_point_owner">
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<argument index="0" name="to_point" type="Vector2">
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</argument>
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<description>
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Returns the owner of the [NavigationPolygon] which contains the navigation point closest to the point given. This is usually a [NavigtionPolygonInstance]. For polygons added via [method navpoly_add], returns the owner that was given (or [code]null[/code] if the [code]owner[/code] parameter was omitted).
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</description>
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</method>
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<method name="get_simple_path">
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<argument index="2" name="optimize" type="bool" default="true">
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</argument>
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<description>
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Returns the path between two given points. Points are in local coordinate space. If [code]optimize[/code] is [code]true[/code] (the default), the path is smoothed by merging path segments where possible.
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</description>
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</method>
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<method name="navpoly_add">
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<argument index="2" name="owner" type="Object" default="null">
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</argument>
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<description>
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Adds a [NavigationPolygon]. Returns an ID for use with [method navpoly_remove] or [method navpoly_set_transform]. If given, a [Transform2D] is applied to the polygon. The optional [code]owner[/code] is used as return value for [method get_closest_point_owner].
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</description>
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</method>
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<method name="navpoly_remove">
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<argument index="0" name="id" type="int">
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</argument>
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<description>
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Removes the [NavigationPolygon] with the given ID.
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</description>
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</method>
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<method name="navpoly_set_transform">
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<argument index="1" name="xform" type="Transform2D">
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</argument>
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<description>
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Sets the transform applied to the [NavigationPolygon] with the given ID.
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</description>
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</method>
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</methods>
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