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<?xml version="1.0" encoding="UTF-8" ?>
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<class name= "NavigationMesh" inherits= "Resource" is_experimental= "true" xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation= "../class.xsd" >
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<brief_description >
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A navigation mesh that defines traversable areas and obstacles.
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</brief_description>
<description >
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A navigation mesh is a collection of polygons that define which areas of an environment are traversable to aid agents in pathfinding through complicated spaces.
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</description>
<tutorials >
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<link title= "Using NavigationMeshes" > $DOCS_URL/tutorials/navigation/navigation_using_navigationmeshes.html</link>
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<link title= "3D Navmesh Demo" > https://godotengine.org/asset-library/asset/124</link>
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</tutorials>
<methods >
<method name= "add_polygon" >
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<return type= "void" />
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<param index= "0" name= "polygon" type= "PackedInt32Array" />
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<description >
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Adds a polygon using the indices of the vertices you get when calling [method get_vertices].
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</description>
</method>
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<method name= "clear" >
<return type= "void" />
<description >
Clears the internal arrays for vertices and polygon indices.
</description>
</method>
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<method name= "clear_polygons" >
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<return type= "void" />
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<description >
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Clears the array of polygons, but it doesn't clear the array of vertices.
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</description>
</method>
<method name= "create_from_mesh" >
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<return type= "void" />
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<param index= "0" name= "mesh" type= "Mesh" />
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<description >
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Initializes the navigation mesh by setting the vertices and indices according to a [Mesh].
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[b]Note:[/b] The given [param mesh] must be of type [constant Mesh.PRIMITIVE_TRIANGLES] and have an index array.
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</description>
</method>
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<method name= "get_collision_mask_value" qualifiers= "const" >
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<return type= "bool" />
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<param index= "0" name= "layer_number" type= "int" />
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<description >
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Returns whether or not the specified layer of the [member geometry_collision_mask] is enabled, given a [param layer_number] between 1 and 32.
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</description>
</method>
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<method name= "get_polygon" >
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<return type= "PackedInt32Array" />
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<param index= "0" name= "idx" type= "int" />
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<description >
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Returns a [PackedInt32Array] containing the indices of the vertices of a created polygon.
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</description>
</method>
<method name= "get_polygon_count" qualifiers= "const" >
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<return type= "int" />
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<description >
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Returns the number of polygons in the navigation mesh.
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</description>
</method>
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<method name= "get_vertices" qualifiers= "const" >
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<return type= "PackedVector3Array" />
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<description >
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Returns a [PackedVector3Array] containing all the vertices being used to create the polygons.
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</description>
</method>
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<method name= "set_collision_mask_value" >
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<return type= "void" />
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<param index= "0" name= "layer_number" type= "int" />
<param index= "1" name= "value" type= "bool" />
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<description >
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Based on [param value], enables or disables the specified layer in the [member geometry_collision_mask], given a [param layer_number] between 1 and 32.
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</description>
</method>
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<method name= "set_vertices" >
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<return type= "void" />
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<param index= "0" name= "vertices" type= "PackedVector3Array" />
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<description >
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Sets the vertices that can be then indexed to create polygons with the [method add_polygon] method.
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</description>
</method>
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</methods>
<members >
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<member name= "agent_height" type= "float" setter= "set_agent_height" getter= "get_agent_height" default= "1.5" >
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The minimum floor to ceiling height that will still allow the floor area to be considered walkable.
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[b]Note:[/b] While baking, this value will be rounded up to the nearest multiple of [member cell_height].
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</member>
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<member name= "agent_max_climb" type= "float" setter= "set_agent_max_climb" getter= "get_agent_max_climb" default= "0.25" >
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The minimum ledge height that is considered to still be traversable.
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[b]Note:[/b] While baking, this value will be rounded down to the nearest multiple of [member cell_height].
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</member>
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<member name= "agent_max_slope" type= "float" setter= "set_agent_max_slope" getter= "get_agent_max_slope" default= "45.0" >
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The maximum slope that is considered walkable, in degrees.
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</member>
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<member name= "agent_radius" type= "float" setter= "set_agent_radius" getter= "get_agent_radius" default= "0.5" >
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The distance to erode/shrink the walkable area of the heightfield away from obstructions.
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[b]Note:[/b] While baking, this value will be rounded up to the nearest multiple of [member cell_size].
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</member>
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<member name= "cell_height" type= "float" setter= "set_cell_height" getter= "get_cell_height" default= "0.25" >
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The cell height used to rasterize the navigation mesh vertices on the Y axis. Must match with the cell height on the navigation map.
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</member>
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<member name= "cell_size" type= "float" setter= "set_cell_size" getter= "get_cell_size" default= "0.25" >
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The cell size used to rasterize the navigation mesh vertices on the XZ plane. Must match with the cell size on the navigation map.
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</member>
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<member name= "detail_sample_distance" type= "float" setter= "set_detail_sample_distance" getter= "get_detail_sample_distance" default= "6.0" >
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The sampling distance to use when generating the detail mesh, in cell unit.
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</member>
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<member name= "detail_sample_max_error" type= "float" setter= "set_detail_sample_max_error" getter= "get_detail_sample_max_error" default= "1.0" >
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The maximum distance the detail mesh surface should deviate from heightfield, in cell unit.
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</member>
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<member name= "edge_max_error" type= "float" setter= "set_edge_max_error" getter= "get_edge_max_error" default= "1.3" >
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The maximum distance a simplified contour's border edges should deviate the original raw contour.
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</member>
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<member name= "edge_max_length" type= "float" setter= "set_edge_max_length" getter= "get_edge_max_length" default= "0.0" >
The maximum allowed length for contour edges along the border of the mesh. A value of [code]0.0[/code] disables this feature.
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[b]Note:[/b] While baking, this value will be rounded up to the nearest multiple of [member cell_size].
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</member>
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<member name= "filter_baking_aabb" type= "AABB" setter= "set_filter_baking_aabb" getter= "get_filter_baking_aabb" default= "AABB(0, 0, 0, 0, 0, 0)" >
If the baking [AABB] has a volume the navigation mesh baking will be restricted to its enclosing area.
</member>
<member name= "filter_baking_aabb_offset" type= "Vector3" setter= "set_filter_baking_aabb_offset" getter= "get_filter_baking_aabb_offset" default= "Vector3(0, 0, 0)" >
The position offset applied to the [member filter_baking_aabb] [AABB].
</member>
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<member name= "filter_ledge_spans" type= "bool" setter= "set_filter_ledge_spans" getter= "get_filter_ledge_spans" default= "false" >
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If [code]true[/code], marks spans that are ledges as non-walkable.
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</member>
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<member name= "filter_low_hanging_obstacles" type= "bool" setter= "set_filter_low_hanging_obstacles" getter= "get_filter_low_hanging_obstacles" default= "false" >
If [code]true[/code], marks non-walkable spans as walkable if their maximum is within [member agent_max_climb] of a walkable neighbor.
</member>
<member name= "filter_walkable_low_height_spans" type= "bool" setter= "set_filter_walkable_low_height_spans" getter= "get_filter_walkable_low_height_spans" default= "false" >
If [code]true[/code], marks walkable spans as not walkable if the clearance above the span is less than [member agent_height].
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</member>
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<member name= "geometry_collision_mask" type= "int" setter= "set_collision_mask" getter= "get_collision_mask" default= "4294967295" >
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The physics layers to scan for static colliders.
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Only used when [member geometry_parsed_geometry_type] is [constant PARSED_GEOMETRY_STATIC_COLLIDERS] or [constant PARSED_GEOMETRY_BOTH].
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</member>
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<member name= "geometry_parsed_geometry_type" type= "int" setter= "set_parsed_geometry_type" getter= "get_parsed_geometry_type" enum= "NavigationMesh.ParsedGeometryType" default= "0" >
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Determines which type of nodes will be parsed as geometry. See [enum ParsedGeometryType] for possible values.
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</member>
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<member name= "geometry_source_geometry_mode" type= "int" setter= "set_source_geometry_mode" getter= "get_source_geometry_mode" enum= "NavigationMesh.SourceGeometryMode" default= "0" >
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The source of the geometry used when baking. See [enum SourceGeometryMode] for possible values.
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</member>
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<member name= "geometry_source_group_name" type= "StringName" setter= "set_source_group_name" getter= "get_source_group_name" default= "&"navigation_mesh_source_group"" >
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The name of the group to scan for geometry.
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Only used when [member geometry_source_geometry_mode] is [constant SOURCE_GEOMETRY_GROUPS_WITH_CHILDREN] or [constant SOURCE_GEOMETRY_GROUPS_EXPLICIT].
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</member>
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<member name= "region_merge_size" type= "float" setter= "set_region_merge_size" getter= "get_region_merge_size" default= "20.0" >
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Any regions with a size smaller than this will be merged with larger regions if possible.
[b]Note:[/b] This value will be squared to calculate the number of cells. For example, a value of 20 will set the number of cells to 400.
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</member>
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<member name= "region_min_size" type= "float" setter= "set_region_min_size" getter= "get_region_min_size" default= "2.0" >
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The minimum size of a region for it to be created.
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[b]Note:[/b] This value will be squared to calculate the minimum number of cells allowed to form isolated island areas. For example, a value of 8 will set the number of cells to 64.
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</member>
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<member name= "sample_partition_type" type= "int" setter= "set_sample_partition_type" getter= "get_sample_partition_type" enum= "NavigationMesh.SamplePartitionType" default= "0" >
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Partitioning algorithm for creating the navigation mesh polys. See [enum SamplePartitionType] for possible values.
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</member>
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<member name= "vertices_per_polygon" type= "float" setter= "set_vertices_per_polygon" getter= "get_vertices_per_polygon" default= "6.0" >
The maximum number of vertices allowed for polygons generated during the contour to polygon conversion process.
</member>
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</members>
<constants >
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<constant name= "SAMPLE_PARTITION_WATERSHED" value= "0" enum= "SamplePartitionType" >
Watershed partitioning. Generally the best choice if you precompute the navigation mesh, use this if you have large open areas.
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</constant>
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<constant name= "SAMPLE_PARTITION_MONOTONE" value= "1" enum= "SamplePartitionType" >
Monotone partitioning. Use this if you want fast navigation mesh generation.
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</constant>
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<constant name= "SAMPLE_PARTITION_LAYERS" value= "2" enum= "SamplePartitionType" >
Layer partitioning. Good choice to use for tiled navigation mesh with medium and small sized tiles.
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</constant>
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<constant name= "SAMPLE_PARTITION_MAX" value= "3" enum= "SamplePartitionType" >
Represents the size of the [enum SamplePartitionType] enum.
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</constant>
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<constant name= "PARSED_GEOMETRY_MESH_INSTANCES" value= "0" enum= "ParsedGeometryType" >
Parses mesh instances as geometry. This includes [MeshInstance3D], [CSGShape3D], and [GridMap] nodes.
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</constant>
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<constant name= "PARSED_GEOMETRY_STATIC_COLLIDERS" value= "1" enum= "ParsedGeometryType" >
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Parses [StaticBody3D] colliders as geometry. The collider should be in any of the layers specified by [member geometry_collision_mask].
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</constant>
<constant name= "PARSED_GEOMETRY_BOTH" value= "2" enum= "ParsedGeometryType" >
Both [constant PARSED_GEOMETRY_MESH_INSTANCES] and [constant PARSED_GEOMETRY_STATIC_COLLIDERS].
</constant>
<constant name= "PARSED_GEOMETRY_MAX" value= "3" enum= "ParsedGeometryType" >
Represents the size of the [enum ParsedGeometryType] enum.
</constant>
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<constant name= "SOURCE_GEOMETRY_ROOT_NODE_CHILDREN" value= "0" enum= "SourceGeometryMode" >
Scans the child nodes of the root node recursively for geometry.
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</constant>
<constant name= "SOURCE_GEOMETRY_GROUPS_WITH_CHILDREN" value= "1" enum= "SourceGeometryMode" >
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Scans nodes in a group and their child nodes recursively for geometry. The group is specified by [member geometry_source_group_name].
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</constant>
<constant name= "SOURCE_GEOMETRY_GROUPS_EXPLICIT" value= "2" enum= "SourceGeometryMode" >
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Uses nodes in a group for geometry. The group is specified by [member geometry_source_group_name].
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</constant>
<constant name= "SOURCE_GEOMETRY_MAX" value= "3" enum= "SourceGeometryMode" >
Represents the size of the [enum SourceGeometryMode] enum.
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</constant>
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</constants>
</class>