HingeJoint

Inherits: Joint < Spatial < Node < Object

A hinge between two 3D bodies.

Description

A HingeJoint normally uses the Z axis of body A as the hinge axis, another axis can be specified when adding it manually though.

Properties

float	angular_limit/bias	0.3
bool	angular_limit/enable	false
float	angular_limit/lower	-90.0
float	angular_limit/relaxation	1.0
float	angular_limit/softness	0.9
float	angular_limit/upper	90.0
bool	motor/enable	false
float	motor/max_impulse	1.0
float	motor/target_velocity	1.0
float	params/bias	0.3

Methods

bool	get_flag ( Flag flag ) const
float	get_param ( Param param ) const
void	set_flag ( Flag flag, bool enabled )
void	set_param ( Param param, float value )

Enumerations

enum Param:

• PARAM_BIAS = 0 --- The speed with which the two bodies get pulled together when they move in different directions.
• PARAM_LIMIT_UPPER = 1 --- The maximum rotation. Only active if angular_limit/enable is true.
• PARAM_LIMIT_LOWER = 2 --- The minimum rotation. Only active if angular_limit/enable is true.
• PARAM_LIMIT_BIAS = 3 --- The speed with which the rotation across the axis perpendicular to the hinge gets corrected.
• PARAM_LIMIT_SOFTNESS = 4
• PARAM_LIMIT_RELAXATION = 5 --- The lower this value, the more the rotation gets slowed down.
• PARAM_MOTOR_TARGET_VELOCITY = 6 --- Target speed for the motor.
• PARAM_MOTOR_MAX_IMPULSE = 7 --- Maximum acceleration for the motor.
• PARAM_MAX = 8 --- Represents the size of the Param enum.

enum Flag:

• FLAG_USE_LIMIT = 0 --- If true, the hinges maximum and minimum rotation, defined by angular_limit/lower and angular_limit/upper has effects.
• FLAG_ENABLE_MOTOR = 1 --- When activated, a motor turns the hinge.
• FLAG_MAX = 2 --- Represents the size of the Flag enum.

Property Descriptions

float angular_limit/bias

Default	0.3
Setter	set_param(value)
Getter	get_param()

The speed with which the rotation across the axis perpendicular to the hinge gets corrected.

bool angular_limit/enable

Default	false
Setter	set_flag(value)
Getter	get_flag()

If true, the hinges maximum and minimum rotation, defined by angular_limit/lower and angular_limit/upper has effects.

float angular_limit/lower

Default

-90.0

The minimum rotation. Only active if angular_limit/enable is true.

float angular_limit/relaxation

Default	1.0
Setter	set_param(value)
Getter	get_param()

The lower this value, the more the rotation gets slowed down.

float angular_limit/softness

Default	0.9
Setter	set_param(value)
Getter	get_param()

float angular_limit/upper

Default

90.0

The maximum rotation. Only active if angular_limit/enable is true.

bool motor/enable

Default	false
Setter	set_flag(value)
Getter	get_flag()

When activated, a motor turns the hinge.

float motor/max_impulse

Default	1.0
Setter	set_param(value)
Getter	get_param()

Maximum acceleration for the motor.

float motor/target_velocity

Default	1.0
Setter	set_param(value)
Getter	get_param()

Target speed for the motor.

float params/bias

Default	0.3
Setter	set_param(value)
Getter	get_param()

The speed with which the two bodies get pulled together when they move in different directions.

Method Descriptions

bool get_flag ( Flag flag ) const

Returns the value of the specified flag.

float get_param ( Param param ) const

Returns the value of the specified parameter.

void set_flag ( Flag flag, bool enabled )

If true, enables the specified flag.

void set_param ( Param param, float value )

Sets the value of the specified parameter.