Area

Area

Inherits: CollisionObject < Spatial < Node < Object

Category: Core

Brief Description

General purpose area node for detection and 3D physics influence.

Properties

float	angular_damp
String	audio_bus_name
bool	audio_bus_override
int	collision_layer
int	collision_mask
float	gravity
float	gravity_distance_scale
bool	gravity_point
Vector3	gravity_vec
float	linear_damp
bool	monitorable
bool	monitoring
float	priority
float	reverb_bus_amount
bool	reverb_bus_enable
String	reverb_bus_name
float	reverb_bus_uniformity
SpaceOverride	space_override

Methods

bool	get_collision_layer_bit ( int bit ) const
bool	get_collision_mask_bit ( int bit ) const
Array	get_overlapping_areas ( ) const
Array	get_overlapping_bodies ( ) const
bool	overlaps_area ( Node area ) const
bool	overlaps_body ( Node body ) const
void	set_collision_layer_bit ( int bit, bool value )
void	set_collision_mask_bit ( int bit, bool value )

Signals

area_entered ( Area area )

Emitted when another area enters.

area_exited ( Area area )

Emitted when another area exits.

area_shape_entered ( int area_id, Area area, int area_shape, int self_shape )

Emitted when another area enters, reporting which areas overlapped.

area_shape_exited ( int area_id, Area area, int area_shape, int self_shape )

Emitted when another area exits, reporting which areas were overlapping.

body_entered ( Node body )

Emitted when a PhysicsBody object enters.

body_exited ( Node body )

Emitted when a PhysicsBody object exits.

body_shape_entered ( int body_id, Node body, int body_shape, int area_shape )

Emitted when a PhysicsBody object enters, reporting which shapes overlapped.

body_shape_exited ( int body_id, Node body, int body_shape, int area_shape )

Emitted when a PhysicsBody object exits, reporting which shapes were overlapping.

Enumerations

enum SpaceOverride:

SPACE_OVERRIDE_DISABLED = 0 — This area does not affect gravity/damping.
SPACE_OVERRIDE_COMBINE = 1 — This area adds its gravity/damping values to whatever has been calculated so far (in priority order).
SPACE_OVERRIDE_COMBINE_REPLACE = 2 — This area adds its gravity/damping values to whatever has been calculated so far (in priority order), ignoring any lower priority areas.
SPACE_OVERRIDE_REPLACE = 3 — This area replaces any gravity/damping, even the defaults, ignoring any lower priority areas.
SPACE_OVERRIDE_REPLACE_COMBINE = 4 — This area replaces any gravity/damping calculated so far (in priority order), but keeps calculating the rest of the areas.

Description

3D area that detects CollisionObject nodes overlapping, entering, or exiting. Can also alter or override local physics parameters (gravity, damping).

Property Descriptions

float angular_damp

Setter	set_angular_damp(value)
Getter	get_angular_damp()

The rate at which objects stop spinning in this area. Represents the angular velocity lost per second. Values range from 0 (no damping) to 1 (full damping).

String audio_bus_name

Setter	set_audio_bus(value)
Getter	get_audio_bus()

The name of the area’s audio bus.

bool audio_bus_override

Setter	set_audio_bus_override(value)
Getter	is_overriding_audio_bus()

If true, the area’s audio bus overrides the default audio bus. Default value: false.

int collision_layer

Setter	set_collision_layer(value)
Getter	get_collision_layer()

The area’s physics layer(s). Collidable objects can exist in any of 32 different layers. A contact is detected if object A is in any of the layers that object B scans, or object B is in any layers that object A scans. See also collision_mask.

int collision_mask

Setter	set_collision_mask(value)
Getter	get_collision_mask()

The physics layers this area scans to determine collision detection.

float gravity

Setter	set_gravity(value)
Getter	get_gravity()

The area’s gravity intensity (ranges from -1024 to 1024). This value multiplies the gravity vector. This is useful to alter the force of gravity without altering its direction.

float gravity_distance_scale

Setter	set_gravity_distance_scale(value)
Getter	get_gravity_distance_scale()

The falloff factor for point gravity. The greater the value, the faster gravity decreases with distance.

bool gravity_point

Setter	set_gravity_is_point(value)
Getter	is_gravity_a_point()

If true, gravity is calculated from a point (set via gravity_vec). Also see space_override. Default value: false.

Vector3 gravity_vec

Setter	set_gravity_vector(value)
Getter	get_gravity_vector()

The area’s gravity vector (not normalized). If gravity is a point (see gravity_point), this will be the point of attraction.

float linear_damp

Setter	set_linear_damp(value)
Getter	get_linear_damp()

The rate at which objects stop moving in this area. Represents the linear velocity lost per second. Values range from 0 (no damping) to 1 (full damping).

bool monitorable

Setter	set_monitorable(value)
Getter	is_monitorable()

If true, other monitoring areas can detect this area. Default value: true.

bool monitoring

Setter	set_monitoring(value)
Getter	is_monitoring()

If true, the area detects bodies or areas entering and exiting it. Default value: true.

float priority

Setter	set_priority(value)
Getter	get_priority()

The area’s priority. Higher priority areas are processed first. Default value: 0.

float reverb_bus_amount

Setter	set_reverb_amount(value)
Getter	get_reverb_amount()

The degree to which this area applies reverb to its associated audio. Ranges from 0 to 1 with 0.1 precision.

bool reverb_bus_enable

Setter	set_use_reverb_bus(value)
Getter	is_using_reverb_bus()

If true, the area applies reverb to its associated audio.

String reverb_bus_name

Setter	set_reverb_bus(value)
Getter	get_reverb_bus()

The reverb bus name to use for this area’s associated audio.

float reverb_bus_uniformity

Setter	set_reverb_uniformity(value)
Getter	get_reverb_uniformity()

The degree to which this area’s reverb is a uniform effect. Ranges from 0 to 1 with 0.1 precision.

SpaceOverride space_override

Setter	set_space_override_mode(value)
Getter	get_space_override_mode()

Override mode for gravity and damping calculations within this area. See SpaceOverride for possible values.

Method Descriptions

bool get_collision_layer_bit ( int bit ) const

Returns an individual bit on the layer mask.

bool get_collision_mask_bit ( int bit ) const

Returns an individual bit on the collision mask.

Array get_overlapping_areas ( ) const

Returns a list of intersecting Areas. For performance reasons (collisions are all processed at the same time) this list is modified once during the physics step, not immediately after objects are moved. Consider using signals instead.

Array get_overlapping_bodies ( ) const

Returns a list of intersecting PhysicsBodys. For performance reasons (collisions are all processed at the same time) this list is modified once during the physics step, not immediately after objects are moved. Consider using signals instead.

bool overlaps_area ( Node area ) const

If true, the given area overlaps the Area. Note that the result of this test is not immediate after moving objects. For performance, list of overlaps is updated once per frame and before the physics step. Consider using signals instead.

bool overlaps_body ( Node body ) const

If true, the given body overlaps the Area. Note that the result of this test is not immediate after moving objects. For performance, list of overlaps is updated once per frame and before the physics step. Consider using signals instead.

void set_collision_layer_bit ( int bit, bool value )

Set/clear individual bits on the layer mask. This simplifies editing this Area’s layers.

void set_collision_mask_bit ( int bit, bool value )

Set/clear individual bits on the collision mask. This simplifies editing which Area layers this Area scans.