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NavigationRegion3D

Inherits: Node3D < Node < Object

A traversable 3D region that NavigationAgent3Ds can use for pathfinding.

Description

A traversable 3D region based on a NavigationMesh that NavigationAgent3Ds can use for pathfinding.

Two regions can be connected to each other if they share a similar edge. You can set the minimum distance between two vertices required to connect two edges by using NavigationServer3D.map_set_edge_connection_margin.

Note: Overlapping two regions' navigation meshes is not enough for connecting two regions. They must share a similar edge.

The cost of entering this region from another region can be controlled with the enter_cost value.

Note: This value is not added to the path cost when the start position is already inside this region.

The cost of traveling distances inside this region can be controlled with the travel_cost multiplier.

Note: This node caches changes to its properties, so if you make changes to the underlying region RID in NavigationServer3D, they will not be reflected in this node's properties.

Tutorials

• Using NavigationRegions

Properties

bool	enabled	true
float	enter_cost	0.0
int	navigation_layers	1
NavigationMesh	navigation_mesh
float	travel_cost	1.0
bool	use_edge_connections	true

Methods

void	bake_navigation_mesh ( bool on_thread=true )
bool	get_navigation_layer_value ( int layer_number ) const
RID	get_region_rid ( ) const
void	set_navigation_layer_value ( int layer_number, bool value )

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Signals

bake_finished ( )

Notifies when the navigation mesh bake operation is completed.

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navigation_mesh_changed ( )

Notifies when the NavigationMesh has changed.

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Property Descriptions

bool enabled = true

• void set_enabled ( bool value )

• bool is_enabled ( )

Determines if the NavigationRegion3D is enabled or disabled.

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float enter_cost = 0.0

• void set_enter_cost ( float value )

• float get_enter_cost ( )

When pathfinding enters this region's navigation mesh from another regions navigation mesh the enter_cost value is added to the path distance for determining the shortest path.

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int navigation_layers = 1

• void set_navigation_layers ( int value )

• int get_navigation_layers ( )

A bitfield determining all navigation layers the region belongs to. These navigation layers can be checked upon when requesting a path with NavigationServer3D.map_get_path.

---

NavigationMesh navigation_mesh

• void set_navigation_mesh ( NavigationMesh value )

• NavigationMesh get_navigation_mesh ( )

The NavigationMesh resource to use.

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float travel_cost = 1.0

• void set_travel_cost ( float value )

• float get_travel_cost ( )

When pathfinding moves inside this region's navigation mesh the traveled distances are multiplied with travel_cost for determining the shortest path.

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bool use_edge_connections = true

• void set_use_edge_connections ( bool value )

• bool get_use_edge_connections ( )

If enabled the navigation region will use edge connections to connect with other navigation regions within proximity of the navigation map edge connection margin.

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Method Descriptions

void bake_navigation_mesh ( bool on_thread=true )

Bakes the NavigationMesh. If on_thread is set to true (default), the baking is done on a separate thread. Baking on separate thread is useful because navigation baking is not a cheap operation. When it is completed, it automatically sets the new NavigationMesh. Please note that baking on separate thread may be very slow if geometry is parsed from meshes as async access to each mesh involves heavy synchronization. Also, please note that baking on a separate thread is automatically disabled on operating systems that cannot use threads (such as Web with threads disabled).

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bool get_navigation_layer_value ( int layer_number ) const

Returns whether or not the specified layer of the navigation_layers bitmask is enabled, given a layer_number between 1 and 32.

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RID get_region_rid ( ) const

Returns the RID of this region on the NavigationServer3D. Combined with NavigationServer3D.map_get_closest_point_owner can be used to identify the NavigationRegion3D closest to a point on the merged navigation map.

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void set_navigation_layer_value ( int layer_number, bool value )

Based on value, enables or disables the specified layer in the navigation_layers bitmask, given a layer_number between 1 and 32.