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Box2D b2Joint documentation
Functions for interacting with native Box2D joints.
Version: alpha
| FUNCTIONS | |
|---|---|
| b2d.joint.create_distance() | Create a distance joint. |
| b2d.joint.create_distance() | Create a distance joint. |
| b2d.joint.create_filter() | Create a filter joint. |
| b2d.joint.create_friction() | Create a friction joint. |
| b2d.joint.create_gear() | Create a gear joint. |
| b2d.joint.create_motor() | Create a motor joint. |
| b2d.joint.create_mouse() | Create a mouse joint. |
| b2d.joint.create_mouse() | Create a mouse joint. |
| b2d.joint.create_prismatic() | Create a prismatic joint. |
| b2d.joint.create_prismatic() | Create a prismatic joint. |
| b2d.joint.create_pulley() | Create a pulley joint. |
| b2d.joint.create_revolute() | Create a revolute joint. |
| b2d.joint.create_revolute() | Create a revolute joint. |
| b2d.joint.create_rope() | Create a rope joint. |
| b2d.joint.create_weld() | Create a weld joint. |
| b2d.joint.create_weld() | Create a weld joint. |
| b2d.joint.create_wheel() | Create a wheel joint. |
| b2d.joint.create_wheel() | Create a wheel joint. |
| b2d.joint.destroy() | Destroy a joint created by b2d.joint. |
| b2d.joint.destroy() | Destroy a joint created by b2d.joint. |
| b2d.joint.enable_limit() | Enable or disable joint limits. |
| b2d.joint.enable_limit() | Enable or disable joint limits. |
| b2d.joint.enable_motor() | Enable or disable the joint motor. |
| b2d.joint.enable_motor() | Enable or disable the joint motor. |
| b2d.joint.enable_spring() | Enable or disable joint spring behavior. |
| b2d.joint.get_anchor_a() | Get the world anchor on body A. |
| b2d.joint.get_anchor_a() | Get the world anchor on body A. |
| b2d.joint.get_anchor_b() | Get the world anchor on body B. |
| b2d.joint.get_anchor_b() | Get the world anchor on body B. |
| b2d.joint.get_angular_damping_ratio() | Get weld joint angular damping ratio. |
| b2d.joint.get_angular_hertz() | Get weld joint angular frequency. |
| b2d.joint.get_angular_offset() | Get motor joint angular offset. |
| b2d.joint.get_body_a() | Get the first body connected to a joint. |
| b2d.joint.get_body_a() | Get the first body connected to a joint. |
| b2d.joint.get_body_b() | Get the second body connected to a joint. |
| b2d.joint.get_body_b() | Get the second body connected to a joint. |
| b2d.joint.get_collide_connected() | Get whether connected bodies can collide. |
| b2d.joint.get_collide_connected() | Get whether connected bodies can collide. |
| b2d.joint.get_correction_factor() | Get motor joint correction factor. |
| b2d.joint.get_current_length() | Get the current distance joint length. |
| b2d.joint.get_damping_ratio() | Get spring damping ratio. |
| b2d.joint.get_damping_ratio() | Alias for b2d.joint.get_spring_damping_ratio. |
| b2d.joint.get_frequency() | Get spring frequency. |
| b2d.joint.get_frequency() | Alias for b2d.joint.get_spring_hertz. |
| b2d.joint.get_ground_anchor_a() | Get pulley ground anchor A. |
| b2d.joint.get_ground_anchor_b() | Get pulley ground anchor B. |
| b2d.joint.get_hertz() | Alias for b2d.joint.get_frequency. |
| b2d.joint.get_hertz() | Alias for b2d.joint.get_spring_hertz. |
| b2d.joint.get_joint1() | Get the first joint connected to a gear joint. |
| b2d.joint.get_joint2() | Get the second joint connected to a gear joint. |
| b2d.joint.get_joint_angle() | Get revolute joint angle. |
| b2d.joint.get_joint_angle() | Get revolute joint angle. |
| b2d.joint.get_joint_speed() | Get joint speed. |
| b2d.joint.get_joint_speed() | Get joint speed. |
| b2d.joint.get_joint_translation() | Get joint translation. |
| b2d.joint.get_joint_translation() | Get joint translation. |
| b2d.joint.get_length() | Get the distance joint length. |
| b2d.joint.get_length() | Get the distance joint length. |
| b2d.joint.get_length_a() | Get pulley segment length A. |
| b2d.joint.get_length_b() | Get pulley segment length B. |
| b2d.joint.get_limit_state() | Get rope limit state. |
| b2d.joint.get_linear_damping_ratio() | Get weld joint linear damping ratio. |
| b2d.joint.get_linear_hertz() | Get weld joint linear frequency. |
| b2d.joint.get_linear_offset() | Get motor joint linear offset. |
| b2d.joint.get_local_anchor_a() | Get the local anchor on body A. |
| b2d.joint.get_local_anchor_a() | Get the local anchor on body A. |
| b2d.joint.get_local_anchor_b() | Get the local anchor on body B. |
| b2d.joint.get_local_anchor_b() | Get the local anchor on body B. |
| b2d.joint.get_local_axis_a() | Get the local axis on body A. |
| b2d.joint.get_lower_limit() | Get the lower joint limit. |
| b2d.joint.get_lower_limit() | Get the lower joint limit. |
| b2d.joint.get_max_force() | Get maximum force. |
| b2d.joint.get_max_force() | Get maximum force. |
| b2d.joint.get_max_length() | Get rope maximum length. |
| b2d.joint.get_max_length() | Get the distance joint maximum length. |
| b2d.joint.get_max_motor_force() | Get maximum motor force. |
| b2d.joint.get_max_motor_force() | Get maximum motor force. |
| b2d.joint.get_max_motor_torque() | Get maximum motor torque. |
| b2d.joint.get_max_motor_torque() | Get maximum motor torque. |
| b2d.joint.get_max_torque() | Get maximum torque. |
| b2d.joint.get_max_torque() | Get maximum torque. |
| b2d.joint.get_min_length() | Get the distance joint minimum length. |
| b2d.joint.get_motor_force() | Get current motor force. |
| b2d.joint.get_motor_force() | Get current motor force. |
| b2d.joint.get_motor_speed() | Get motor speed. |
| b2d.joint.get_motor_speed() | Get motor speed. |
| b2d.joint.get_motor_torque() | Get current motor torque. |
| b2d.joint.get_motor_torque() | Get current motor torque. |
| b2d.joint.get_mouse_target() | Get the target for a mouse joint. |
| b2d.joint.get_mouse_target() | Get the target for a mouse joint. |
| b2d.joint.get_ratio() | Get joint ratio. |
| b2d.joint.get_reaction_force() | Get reaction force. |
| b2d.joint.get_reaction_force() | Get reaction force. |
| b2d.joint.get_reaction_torque() | Get reaction torque. |
| b2d.joint.get_reaction_torque() | Get reaction torque. |
| b2d.joint.get_reference_angle() | Get the reference angle. |
| b2d.joint.get_reference_angle() | Get weld joint reference angle. |
| b2d.joint.get_spring_damping_ratio() | Alias for b2d.joint.get_damping_ratio. |
| b2d.joint.get_spring_damping_ratio() | Get spring damping ratio. |
| b2d.joint.get_spring_hertz() | Get spring frequency. |
| b2d.joint.get_type() | Get the joint type. |
| b2d.joint.get_type() | Get the joint type. |
| b2d.joint.get_upper_limit() | Get the upper joint limit. |
| b2d.joint.get_upper_limit() | Get the upper joint limit. |
| b2d.joint.is_active() | Get whether the joint is active. |
| b2d.joint.is_limit_enabled() | Get whether joint limits are enabled. |
| b2d.joint.is_limit_enabled() | Get whether joint limits are enabled. |
| b2d.joint.is_motor_enabled() | Get whether the joint motor is enabled. |
| b2d.joint.is_motor_enabled() | Get whether the joint motor is enabled. |
| b2d.joint.is_spring_enabled() | Get whether joint spring behavior is enabled. |
| b2d.joint.set_angular_damping_ratio() | Set weld joint angular damping ratio. |
| b2d.joint.set_angular_hertz() | Set weld joint angular frequency. |
| b2d.joint.set_angular_offset() | Set motor joint angular offset. |
| b2d.joint.set_collide_connected() | Set whether connected bodies can collide. |
| b2d.joint.set_correction_factor() | Set motor joint correction factor. |
| b2d.joint.set_damping_ratio() | Set spring damping ratio. |
| b2d.joint.set_damping_ratio() | Alias for b2d.joint.set_spring_damping_ratio. |
| b2d.joint.set_frequency() | Set spring frequency. |
| b2d.joint.set_frequency() | Alias for b2d.joint.set_spring_hertz. |
| b2d.joint.set_hertz() | Alias for b2d.joint.set_frequency. |
| b2d.joint.set_hertz() | Alias for b2d.joint.set_spring_hertz. |
| b2d.joint.set_length() | Set the distance joint length. |
| b2d.joint.set_length() | Set the distance joint length. |
| b2d.joint.set_length_range() | Set the distance joint length range. |
| b2d.joint.set_limits() | Set joint limits. |
| b2d.joint.set_limits() | Set joint limits. |
| b2d.joint.set_linear_damping_ratio() | Set weld joint linear damping ratio. |
| b2d.joint.set_linear_hertz() | Set weld joint linear frequency. |
| b2d.joint.set_linear_offset() | Set motor joint linear offset. |
| b2d.joint.set_max_force() | Set maximum force. |
| b2d.joint.set_max_force() | Set maximum force. |
| b2d.joint.set_max_length() | Set rope maximum length. |
| b2d.joint.set_max_length() | Set the distance joint maximum length. |
| b2d.joint.set_max_motor_force() | Set maximum motor force. |
| b2d.joint.set_max_motor_force() | Set maximum motor force. |
| b2d.joint.set_max_motor_torque() | Set maximum motor torque. |
| b2d.joint.set_max_motor_torque() | Set maximum motor torque. |
| b2d.joint.set_max_torque() | Set maximum torque. |
| b2d.joint.set_max_torque() | Set maximum torque. |
| b2d.joint.set_min_length() | Set the distance joint minimum length. |
| b2d.joint.set_motor_speed() | Set motor speed. |
| b2d.joint.set_motor_speed() | Set motor speed. |
| b2d.joint.set_mouse_target() | Set the target for a mouse joint. |
| b2d.joint.set_mouse_target() | Set the target for a mouse joint. |
| b2d.joint.set_ratio() | Set gear joint ratio. |
| b2d.joint.set_reference_angle() | Set weld joint reference angle. |
| b2d.joint.set_spring_damping_ratio() | Alias for b2d.joint.set_damping_ratio. |
| b2d.joint.set_spring_damping_ratio() | Set spring damping ratio. |
| b2d.joint.set_spring_hertz() | Set spring frequency. |
| b2d.joint.wake_bodies() | Wake the bodies connected to a joint. |
Functions
b2d.joint.create_distance()
b2d.joint.create_distance(body_a,body_b,definition)
Create a distance joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with local_anchor_a, local_anchor_b, length, frequency, damping_ratio, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_distance()
b2d.joint.create_distance(body_a,body_b,definition)
Create a distance joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with local_anchor_a, local_anchor_b, length, min_length, max_length, enable_spring, hertz or frequency, damping_ratio, enable_limit, enable_motor, max_motor_force, motor_speed, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_filter()
b2d.joint.create_filter(body_a,body_b,definition)
Create a filter joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition table |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_friction()
b2d.joint.create_friction(body_a,body_b,definition)
Create a friction joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with local_anchor_a, local_anchor_b, max_force, max_torque, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_gear()
b2d.joint.create_gear(joint1,joint2,definition)
Create a gear joint.
PARAMETERS
joint1 |
b2Joint |
first revolute or prismatic joint |
joint2 |
b2Joint |
second revolute or prismatic joint |
definition |
table |
optional definition with ratio |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_motor()
b2d.joint.create_motor(body_a,body_b,definition)
Create a motor joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with linear_offset, angular_offset, max_force, max_torque, correction_factor, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_mouse()
b2d.joint.create_mouse(body_a,body_b,definition)
Create a mouse joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with target, max_force, frequency, damping_ratio, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_mouse()
b2d.joint.create_mouse(body_a,body_b,definition)
Create a mouse joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with target, hertz or frequency, damping_ratio, max_force, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_prismatic()
b2d.joint.create_prismatic(body_a,body_b,definition)
Create a prismatic joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with local_anchor_a, local_anchor_b, local_axis_a, reference_angle, enable_limit, lower_translation, upper_translation, enable_motor, max_motor_force, motor_speed, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_prismatic()
b2d.joint.create_prismatic(body_a,body_b,definition)
Create a prismatic joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with local_anchor_a, local_anchor_b, local_axis_a, reference_angle, enable_spring, hertz or frequency, damping_ratio, enable_limit, lower_translation, upper_translation, enable_motor, max_motor_force, motor_speed, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_pulley()
b2d.joint.create_pulley(body_a,body_b,definition)
Create a pulley joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with ground_anchor_a, ground_anchor_b, local_anchor_a, local_anchor_b, length_a, length_b, ratio, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_revolute()
b2d.joint.create_revolute(body_a,body_b,definition)
Create a revolute joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with local_anchor_a, local_anchor_b, reference_angle, enable_limit, lower_angle, upper_angle, enable_motor, max_motor_torque, motor_speed, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_revolute()
b2d.joint.create_revolute(body_a,body_b,definition)
Create a revolute joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with local_anchor_a, local_anchor_b, reference_angle, enable_spring, hertz or frequency, damping_ratio, enable_limit, lower_angle, upper_angle, enable_motor, max_motor_torque, motor_speed, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_rope()
b2d.joint.create_rope(body_a,body_b,definition)
Create a rope joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with local_anchor_a, local_anchor_b, max_length, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_weld()
b2d.joint.create_weld(body_a,body_b,definition)
Create a weld joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with local_anchor_a, local_anchor_b, reference_angle, frequency, damping_ratio, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_weld()
b2d.joint.create_weld(body_a,body_b,definition)
Create a weld joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with local_anchor_a, local_anchor_b, reference_angle, linear_hertz, angular_hertz, linear_damping_ratio, angular_damping_ratio, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_wheel()
b2d.joint.create_wheel(body_a,body_b,definition)
Create a wheel joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with local_anchor_a, local_anchor_b, local_axis_a, enable_motor, max_motor_torque, motor_speed, frequency, damping_ratio, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.create_wheel()
b2d.joint.create_wheel(body_a,body_b,definition)
Create a wheel joint.
PARAMETERS
body_a |
b2Body |
first body |
body_b |
b2Body |
second body |
definition |
table |
optional definition with local_anchor_a, local_anchor_b, local_axis_a, enable_spring, hertz or frequency, damping_ratio, enable_limit, lower_translation, upper_translation, enable_motor, max_motor_torque, motor_speed, and collide_connected |
RETURNS
joint |
b2Joint |
created joint |
b2d.joint.destroy()
b2d.joint.destroy(joint)
Destroy a joint created by b2d.joint.
PARAMETERS
joint |
b2Joint |
joint |
b2d.joint.destroy()
b2d.joint.destroy(joint)
Destroy a joint created by b2d.joint.
PARAMETERS
joint |
b2Joint |
joint |
b2d.joint.enable_limit()
b2d.joint.enable_limit(joint,enable)
Enable or disable joint limits.
PARAMETERS
joint |
b2Joint |
prismatic or revolute joint |
enable |
boolean |
true to enable limits |
b2d.joint.enable_limit()
b2d.joint.enable_limit(joint,enable)
Enable or disable joint limits.
PARAMETERS
joint |
b2Joint |
distance, prismatic, revolute, or wheel joint |
enable |
boolean |
true to enable limits |
b2d.joint.enable_motor()
b2d.joint.enable_motor(joint,enable)
Enable or disable the joint motor.
PARAMETERS
joint |
b2Joint |
prismatic, revolute, or wheel joint |
enable |
boolean |
true to enable the motor |
b2d.joint.enable_motor()
b2d.joint.enable_motor(joint,enable)
Enable or disable the joint motor.
PARAMETERS
joint |
b2Joint |
distance, prismatic, revolute, or wheel joint |
enable |
boolean |
true to enable the motor |
b2d.joint.enable_spring()
b2d.joint.enable_spring(joint,enable)
Enable or disable joint spring behavior.
PARAMETERS
joint |
b2Joint |
distance, prismatic, revolute, or wheel joint |
enable |
boolean |
true to enable the spring |
b2d.joint.get_anchor_a()
b2d.joint.get_anchor_a(joint)
Get the world anchor on body A.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
anchor |
vector3 |
world anchor |
b2d.joint.get_anchor_a()
b2d.joint.get_anchor_a(joint)
Get the world anchor on body A.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
anchor |
vector3 |
world anchor |
b2d.joint.get_anchor_b()
b2d.joint.get_anchor_b(joint)
Get the world anchor on body B.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
anchor |
vector3 |
world anchor |
b2d.joint.get_anchor_b()
b2d.joint.get_anchor_b(joint)
Get the world anchor on body B.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
anchor |
vector3 |
world anchor |
b2d.joint.get_angular_damping_ratio()
b2d.joint.get_angular_damping_ratio(joint)
Get weld joint angular damping ratio.
PARAMETERS
joint |
b2Joint |
weld joint |
RETURNS
ratio |
number |
damping ratio |
b2d.joint.get_angular_hertz()
b2d.joint.get_angular_hertz(joint)
Get weld joint angular frequency.
PARAMETERS
joint |
b2Joint |
weld joint |
RETURNS
hertz |
number |
frequency in hertz |
b2d.joint.get_angular_offset()
b2d.joint.get_angular_offset(joint)
Get motor joint angular offset.
PARAMETERS
joint |
b2Joint |
motor joint |
RETURNS
offset |
number |
angular offset in radians |
b2d.joint.get_body_a()
b2d.joint.get_body_a(joint)
Get the first body connected to a joint.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
body |
b2Body |
body A |
b2d.joint.get_body_a()
b2d.joint.get_body_a(joint)
Get the first body connected to a joint.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
body |
b2Body |
body A |
b2d.joint.get_body_b()
b2d.joint.get_body_b(joint)
Get the second body connected to a joint.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
body |
b2Body |
body B |
b2d.joint.get_body_b()
b2d.joint.get_body_b(joint)
Get the second body connected to a joint.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
body |
b2Body |
body B |
b2d.joint.get_collide_connected()
b2d.joint.get_collide_connected(joint)
Get whether connected bodies can collide.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
collide |
boolean |
true if connected bodies can collide |
b2d.joint.get_collide_connected()
b2d.joint.get_collide_connected(joint)
Get whether connected bodies can collide.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
collide |
boolean |
true if connected bodies can collide |
b2d.joint.get_correction_factor()
b2d.joint.get_correction_factor(joint)
Get motor joint correction factor.
PARAMETERS
joint |
b2Joint |
motor joint |
RETURNS
factor |
number |
correction factor |
b2d.joint.get_current_length()
b2d.joint.get_current_length(joint)
Get the current distance joint length.
PARAMETERS
joint |
b2Joint |
distance joint |
RETURNS
length |
number |
current length in project units |
b2d.joint.get_damping_ratio()
b2d.joint.get_damping_ratio(joint)
Get spring damping ratio.
PARAMETERS
joint |
b2Joint |
distance, mouse, weld, or wheel joint |
RETURNS
ratio |
number |
damping ratio |
b2d.joint.get_damping_ratio()
b2d.joint.get_damping_ratio(joint)
Alias for b2d.joint.get_spring_damping_ratio.
PARAMETERS
joint |
b2Joint |
distance, mouse, prismatic, revolute, or wheel joint |
RETURNS
ratio |
number |
damping ratio |
b2d.joint.get_frequency()
b2d.joint.get_frequency(joint)
Get spring frequency.
PARAMETERS
joint |
b2Joint |
distance, mouse, weld, or wheel joint |
RETURNS
frequency |
number |
frequency in hertz |
b2d.joint.get_frequency()
b2d.joint.get_frequency(joint)
Alias for b2d.joint.get_spring_hertz.
PARAMETERS
joint |
b2Joint |
distance, mouse, prismatic, revolute, or wheel joint |
RETURNS
frequency |
number |
frequency in hertz |
b2d.joint.get_ground_anchor_a()
b2d.joint.get_ground_anchor_a(joint)
Get pulley ground anchor A.
PARAMETERS
joint |
b2Joint |
pulley joint |
RETURNS
anchor |
vector3 |
world anchor |
b2d.joint.get_ground_anchor_b()
b2d.joint.get_ground_anchor_b(joint)
Get pulley ground anchor B.
PARAMETERS
joint |
b2Joint |
pulley joint |
RETURNS
anchor |
vector3 |
world anchor |
b2d.joint.get_hertz()
b2d.joint.get_hertz(joint)
Alias for b2d.joint.get_frequency.
PARAMETERS
joint |
b2Joint |
distance, mouse, weld, or wheel joint |
RETURNS
hertz |
number |
frequency in hertz |
b2d.joint.get_hertz()
b2d.joint.get_hertz(joint)
Alias for b2d.joint.get_spring_hertz.
PARAMETERS
joint |
b2Joint |
distance, mouse, prismatic, revolute, or wheel joint |
RETURNS
hertz |
number |
frequency in hertz |
b2d.joint.get_joint1()
b2d.joint.get_joint1(joint)
Get the first joint connected to a gear joint.
PARAMETERS
joint |
b2Joint |
gear joint |
RETURNS
joint1 |
b2Joint |
first connected joint |
b2d.joint.get_joint2()
b2d.joint.get_joint2(joint)
Get the second joint connected to a gear joint.
PARAMETERS
joint |
b2Joint |
gear joint |
RETURNS
joint2 |
b2Joint |
second connected joint |
b2d.joint.get_joint_angle()
b2d.joint.get_joint_angle(joint)
Get revolute joint angle.
PARAMETERS
joint |
b2Joint |
revolute joint |
RETURNS
angle |
number |
angle in radians |
b2d.joint.get_joint_angle()
b2d.joint.get_joint_angle(joint)
Get revolute joint angle.
PARAMETERS
joint |
b2Joint |
revolute joint |
RETURNS
angle |
number |
angle in radians |
b2d.joint.get_joint_speed()
b2d.joint.get_joint_speed(joint)
Get joint speed.
PARAMETERS
joint |
b2Joint |
prismatic, revolute, or wheel joint |
RETURNS
speed |
number |
joint speed |
b2d.joint.get_joint_speed()
b2d.joint.get_joint_speed(joint)
Get joint speed.
PARAMETERS
joint |
b2Joint |
prismatic joint |
RETURNS
speed |
number |
joint speed |
b2d.joint.get_joint_translation()
b2d.joint.get_joint_translation(joint)
Get joint translation.
PARAMETERS
joint |
b2Joint |
prismatic or wheel joint |
RETURNS
translation |
number |
translation in project units |
b2d.joint.get_joint_translation()
b2d.joint.get_joint_translation(joint)
Get joint translation.
PARAMETERS
joint |
b2Joint |
prismatic joint |
RETURNS
translation |
number |
translation in project units |
b2d.joint.get_length()
b2d.joint.get_length(joint)
Get the distance joint length.
PARAMETERS
joint |
b2Joint |
distance joint |
RETURNS
length |
number |
length in project units |
b2d.joint.get_length()
b2d.joint.get_length(joint)
Get the distance joint length.
PARAMETERS
joint |
b2Joint |
distance joint |
RETURNS
length |
number |
length in project units |
b2d.joint.get_length_a()
b2d.joint.get_length_a(joint)
Get pulley segment length A.
PARAMETERS
joint |
b2Joint |
pulley joint |
RETURNS
length |
number |
length in project units |
b2d.joint.get_length_b()
b2d.joint.get_length_b(joint)
Get pulley segment length B.
PARAMETERS
joint |
b2Joint |
pulley joint |
RETURNS
length |
number |
length in project units |
b2d.joint.get_limit_state()
b2d.joint.get_limit_state(joint)
Get rope limit state.
PARAMETERS
joint |
b2Joint |
rope joint |
RETURNS
state |
number |
one of the LIMIT_STATE_* constants |
b2d.joint.get_linear_damping_ratio()
b2d.joint.get_linear_damping_ratio(joint)
Get weld joint linear damping ratio.
PARAMETERS
joint |
b2Joint |
weld joint |
RETURNS
ratio |
number |
damping ratio |
b2d.joint.get_linear_hertz()
b2d.joint.get_linear_hertz(joint)
Get weld joint linear frequency.
PARAMETERS
joint |
b2Joint |
weld joint |
RETURNS
hertz |
number |
frequency in hertz |
b2d.joint.get_linear_offset()
b2d.joint.get_linear_offset(joint)
Get motor joint linear offset.
PARAMETERS
joint |
b2Joint |
motor joint |
RETURNS
offset |
vector3 |
linear offset in project units |
b2d.joint.get_local_anchor_a()
b2d.joint.get_local_anchor_a(joint)
Get the local anchor on body A.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
anchor |
vector3 |
local anchor |
b2d.joint.get_local_anchor_a()
b2d.joint.get_local_anchor_a(joint)
Get the local anchor on body A.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
anchor |
vector3 |
local anchor |
b2d.joint.get_local_anchor_b()
b2d.joint.get_local_anchor_b(joint)
Get the local anchor on body B.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
anchor |
vector3 |
local anchor |
b2d.joint.get_local_anchor_b()
b2d.joint.get_local_anchor_b(joint)
Get the local anchor on body B.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
anchor |
vector3 |
local anchor |
b2d.joint.get_local_axis_a()
b2d.joint.get_local_axis_a(joint)
Get the local axis on body A.
PARAMETERS
joint |
b2Joint |
prismatic or wheel joint |
RETURNS
axis |
vector3 |
local axis |
b2d.joint.get_lower_limit()
b2d.joint.get_lower_limit(joint)
Get the lower joint limit.
PARAMETERS
joint |
b2Joint |
prismatic or revolute joint |
RETURNS
lower |
number |
lower limit |
b2d.joint.get_lower_limit()
b2d.joint.get_lower_limit(joint)
Get the lower joint limit.
PARAMETERS
joint |
b2Joint |
prismatic, revolute, or wheel joint |
RETURNS
lower |
number |
lower limit |
b2d.joint.get_max_force()
b2d.joint.get_max_force(joint)
Get maximum force.
PARAMETERS
joint |
b2Joint |
mouse or friction joint |
RETURNS
force |
number |
maximum force |
b2d.joint.get_max_force()
b2d.joint.get_max_force(joint)
Get maximum force.
PARAMETERS
joint |
b2Joint |
mouse or motor joint |
RETURNS
force |
number |
maximum force |
b2d.joint.get_max_length()
b2d.joint.get_max_length(joint)
Get rope maximum length.
PARAMETERS
joint |
b2Joint |
rope joint |
RETURNS
length |
number |
maximum length in project units |
b2d.joint.get_max_length()
b2d.joint.get_max_length(joint)
Get the distance joint maximum length.
PARAMETERS
joint |
b2Joint |
distance joint |
RETURNS
length |
number |
maximum length in project units |
b2d.joint.get_max_motor_force()
b2d.joint.get_max_motor_force(joint)
Get maximum motor force.
PARAMETERS
joint |
b2Joint |
prismatic joint |
RETURNS
force |
number |
maximum motor force |
b2d.joint.get_max_motor_force()
b2d.joint.get_max_motor_force(joint)
Get maximum motor force.
PARAMETERS
joint |
b2Joint |
distance or prismatic joint |
RETURNS
force |
number |
maximum motor force |
b2d.joint.get_max_motor_torque()
b2d.joint.get_max_motor_torque(joint)
Get maximum motor torque.
PARAMETERS
joint |
b2Joint |
revolute or wheel joint |
RETURNS
torque |
number |
maximum motor torque |
b2d.joint.get_max_motor_torque()
b2d.joint.get_max_motor_torque(joint)
Get maximum motor torque.
PARAMETERS
joint |
b2Joint |
revolute or wheel joint |
RETURNS
torque |
number |
maximum motor torque |
b2d.joint.get_max_torque()
b2d.joint.get_max_torque(joint)
Get maximum torque.
PARAMETERS
joint |
b2Joint |
friction joint |
RETURNS
torque |
number |
maximum torque |
b2d.joint.get_max_torque()
b2d.joint.get_max_torque(joint)
Get maximum torque.
PARAMETERS
joint |
b2Joint |
motor joint |
RETURNS
torque |
number |
maximum torque |
b2d.joint.get_min_length()
b2d.joint.get_min_length(joint)
Get the distance joint minimum length.
PARAMETERS
joint |
b2Joint |
distance joint |
RETURNS
length |
number |
minimum length in project units |
b2d.joint.get_motor_force()
b2d.joint.get_motor_force(joint,inv_dt)
Get current motor force.
PARAMETERS
joint |
b2Joint |
prismatic joint |
inv_dt |
number |
inverse time step |
RETURNS
force |
number |
motor force |
b2d.joint.get_motor_force()
b2d.joint.get_motor_force(joint)
Get current motor force.
PARAMETERS
joint |
b2Joint |
distance or prismatic joint |
RETURNS
force |
number |
motor force |
b2d.joint.get_motor_speed()
b2d.joint.get_motor_speed(joint)
Get motor speed.
PARAMETERS
joint |
b2Joint |
prismatic, revolute, or wheel joint |
RETURNS
speed |
number |
motor speed |
b2d.joint.get_motor_speed()
b2d.joint.get_motor_speed(joint)
Get motor speed.
PARAMETERS
joint |
b2Joint |
distance, prismatic, revolute, or wheel joint |
RETURNS
speed |
number |
motor speed |
b2d.joint.get_motor_torque()
b2d.joint.get_motor_torque(joint,inv_dt)
Get current motor torque.
PARAMETERS
joint |
b2Joint |
revolute or wheel joint |
inv_dt |
number |
inverse time step |
RETURNS
torque |
number |
motor torque |
b2d.joint.get_motor_torque()
b2d.joint.get_motor_torque(joint)
Get current motor torque.
PARAMETERS
joint |
b2Joint |
revolute or wheel joint |
RETURNS
torque |
number |
motor torque |
b2d.joint.get_mouse_target()
b2d.joint.get_mouse_target(joint)
Get the target for a mouse joint.
PARAMETERS
joint |
b2Joint |
mouse joint |
RETURNS
target |
vector3 |
world target |
b2d.joint.get_mouse_target()
b2d.joint.get_mouse_target(joint)
Get the target for a mouse joint.
PARAMETERS
joint |
b2Joint |
mouse joint |
RETURNS
target |
vector3 |
world target |
b2d.joint.get_ratio()
b2d.joint.get_ratio(joint)
Get joint ratio.
PARAMETERS
joint |
b2Joint |
pulley or gear joint |
RETURNS
ratio |
number |
joint ratio |
b2d.joint.get_reaction_force()
b2d.joint.get_reaction_force(joint,inv_dt)
Get reaction force.
PARAMETERS
joint |
b2Joint |
joint |
inv_dt |
number |
inverse time step |
RETURNS
force |
vector3 |
reaction force |
b2d.joint.get_reaction_force()
b2d.joint.get_reaction_force(joint)
Get reaction force.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
force |
vector3 |
reaction force |
b2d.joint.get_reaction_torque()
b2d.joint.get_reaction_torque(joint,inv_dt)
Get reaction torque.
PARAMETERS
joint |
b2Joint |
joint |
inv_dt |
number |
inverse time step |
RETURNS
torque |
number |
reaction torque |
b2d.joint.get_reaction_torque()
b2d.joint.get_reaction_torque(joint)
Get reaction torque.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
torque |
number |
reaction torque |
b2d.joint.get_reference_angle()
b2d.joint.get_reference_angle(joint)
Get the reference angle.
PARAMETERS
joint |
b2Joint |
prismatic, revolute, or weld joint |
RETURNS
angle |
number |
reference angle in radians |
b2d.joint.get_reference_angle()
b2d.joint.get_reference_angle(joint)
Get weld joint reference angle.
PARAMETERS
joint |
b2Joint |
weld joint |
RETURNS
angle |
number |
reference angle in radians |
b2d.joint.get_spring_damping_ratio()
b2d.joint.get_spring_damping_ratio(joint)
Alias for b2d.joint.get_damping_ratio.
PARAMETERS
joint |
b2Joint |
distance, mouse, weld, or wheel joint |
RETURNS
ratio |
number |
damping ratio |
b2d.joint.get_spring_damping_ratio()
b2d.joint.get_spring_damping_ratio(joint)
Get spring damping ratio.
PARAMETERS
joint |
b2Joint |
distance, mouse, prismatic, revolute, or wheel joint |
RETURNS
ratio |
number |
damping ratio |
b2d.joint.get_spring_hertz()
b2d.joint.get_spring_hertz(joint)
Get spring frequency.
PARAMETERS
joint |
b2Joint |
distance, mouse, prismatic, revolute, or wheel joint |
RETURNS
hertz |
number |
frequency in hertz |
b2d.joint.get_type()
b2d.joint.get_type(joint)
Get the joint type.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
type |
number |
one of the JOINT_TYPE_* constants |
b2d.joint.get_type()
b2d.joint.get_type(joint)
Get the joint type.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
type |
number |
one of the JOINT_TYPE_* constants |
b2d.joint.get_upper_limit()
b2d.joint.get_upper_limit(joint)
Get the upper joint limit.
PARAMETERS
joint |
b2Joint |
prismatic or revolute joint |
RETURNS
upper |
number |
upper limit |
b2d.joint.get_upper_limit()
b2d.joint.get_upper_limit(joint)
Get the upper joint limit.
PARAMETERS
joint |
b2Joint |
prismatic, revolute, or wheel joint |
RETURNS
upper |
number |
upper limit |
b2d.joint.is_active()
b2d.joint.is_active(joint)
Get whether the joint is active.
PARAMETERS
joint |
b2Joint |
joint |
RETURNS
active |
boolean |
true if the joint is active |
b2d.joint.is_limit_enabled()
b2d.joint.is_limit_enabled(joint)
Get whether joint limits are enabled.
PARAMETERS
joint |
b2Joint |
prismatic or revolute joint |
RETURNS
enabled |
boolean |
true if limits are enabled |
b2d.joint.is_limit_enabled()
b2d.joint.is_limit_enabled(joint)
Get whether joint limits are enabled.
PARAMETERS
joint |
b2Joint |
distance, prismatic, revolute, or wheel joint |
RETURNS
enabled |
boolean |
true if limits are enabled |
b2d.joint.is_motor_enabled()
b2d.joint.is_motor_enabled(joint)
Get whether the joint motor is enabled.
PARAMETERS
joint |
b2Joint |
prismatic, revolute, or wheel joint |
RETURNS
enabled |
boolean |
true if the motor is enabled |
b2d.joint.is_motor_enabled()
b2d.joint.is_motor_enabled(joint)
Get whether the joint motor is enabled.
PARAMETERS
joint |
b2Joint |
distance, prismatic, revolute, or wheel joint |
RETURNS
enabled |
boolean |
true if the motor is enabled |
b2d.joint.is_spring_enabled()
b2d.joint.is_spring_enabled(joint)
Get whether joint spring behavior is enabled.
PARAMETERS
joint |
b2Joint |
distance, prismatic, revolute, or wheel joint |
RETURNS
enabled |
boolean |
true if the spring is enabled |
b2d.joint.set_angular_damping_ratio()
b2d.joint.set_angular_damping_ratio(joint,ratio)
Set weld joint angular damping ratio.
PARAMETERS
joint |
b2Joint |
weld joint |
ratio |
number |
damping ratio |
b2d.joint.set_angular_hertz()
b2d.joint.set_angular_hertz(joint,hertz)
Set weld joint angular frequency.
PARAMETERS
joint |
b2Joint |
weld joint |
hertz |
number |
frequency in hertz |
b2d.joint.set_angular_offset()
b2d.joint.set_angular_offset(joint,offset)
Set motor joint angular offset.
PARAMETERS
joint |
b2Joint |
motor joint |
offset |
number |
angular offset in radians |
b2d.joint.set_collide_connected()
b2d.joint.set_collide_connected(joint,collide)
Set whether connected bodies can collide.
PARAMETERS
joint |
b2Joint |
joint |
collide |
boolean |
true if connected bodies can collide |
b2d.joint.set_correction_factor()
b2d.joint.set_correction_factor(joint,factor)
Set motor joint correction factor.
PARAMETERS
joint |
b2Joint |
motor joint |
factor |
number |
correction factor |
b2d.joint.set_damping_ratio()
b2d.joint.set_damping_ratio(joint,ratio)
Set spring damping ratio.
PARAMETERS
joint |
b2Joint |
distance, mouse, weld, or wheel joint |
ratio |
number |
damping ratio |
b2d.joint.set_damping_ratio()
b2d.joint.set_damping_ratio(joint,ratio)
Alias for b2d.joint.set_spring_damping_ratio.
PARAMETERS
joint |
b2Joint |
distance, mouse, prismatic, revolute, or wheel joint |
ratio |
number |
damping ratio |
b2d.joint.set_frequency()
b2d.joint.set_frequency(joint,frequency)
Set spring frequency.
PARAMETERS
joint |
b2Joint |
distance, mouse, weld, or wheel joint |
frequency |
number |
frequency in hertz |
b2d.joint.set_frequency()
b2d.joint.set_frequency(joint,frequency)
Alias for b2d.joint.set_spring_hertz.
PARAMETERS
joint |
b2Joint |
distance, mouse, prismatic, revolute, or wheel joint |
frequency |
number |
frequency in hertz |
b2d.joint.set_hertz()
b2d.joint.set_hertz(joint,hertz)
Alias for b2d.joint.set_frequency.
PARAMETERS
joint |
b2Joint |
distance, mouse, weld, or wheel joint |
hertz |
number |
frequency in hertz |
b2d.joint.set_hertz()
b2d.joint.set_hertz(joint,hertz)
Alias for b2d.joint.set_spring_hertz.
PARAMETERS
joint |
b2Joint |
distance, mouse, prismatic, revolute, or wheel joint |
hertz |
number |
frequency in hertz |
b2d.joint.set_length()
b2d.joint.set_length(joint,length)
Set the distance joint length.
PARAMETERS
joint |
b2Joint |
distance joint |
length |
number |
length in project units |
b2d.joint.set_length()
b2d.joint.set_length(joint,length)
Set the distance joint length.
PARAMETERS
joint |
b2Joint |
distance joint |
length |
number |
length in project units |
b2d.joint.set_length_range()
b2d.joint.set_length_range(joint,min_length,max_length)
Set the distance joint length range.
PARAMETERS
joint |
b2Joint |
distance joint |
min_length |
number |
minimum length in project units |
max_length |
number |
maximum length in project units |
b2d.joint.set_limits()
b2d.joint.set_limits(joint,lower,upper)
Set joint limits.
PARAMETERS
joint |
b2Joint |
prismatic or revolute joint |
lower |
number |
lower limit |
upper |
number |
upper limit |
b2d.joint.set_limits()
b2d.joint.set_limits(joint,lower,upper)
Set joint limits.
PARAMETERS
joint |
b2Joint |
prismatic, revolute, or wheel joint |
lower |
number |
lower limit |
upper |
number |
upper limit |
b2d.joint.set_linear_damping_ratio()
b2d.joint.set_linear_damping_ratio(joint,ratio)
Set weld joint linear damping ratio.
PARAMETERS
joint |
b2Joint |
weld joint |
ratio |
number |
damping ratio |
b2d.joint.set_linear_hertz()
b2d.joint.set_linear_hertz(joint,hertz)
Set weld joint linear frequency.
PARAMETERS
joint |
b2Joint |
weld joint |
hertz |
number |
frequency in hertz |
b2d.joint.set_linear_offset()
b2d.joint.set_linear_offset(joint,offset)
Set motor joint linear offset.
PARAMETERS
joint |
b2Joint |
motor joint |
offset |
vector3 |
linear offset in project units |
b2d.joint.set_max_force()
b2d.joint.set_max_force(joint,force)
Set maximum force.
PARAMETERS
joint |
b2Joint |
mouse or friction joint |
force |
number |
maximum force |
b2d.joint.set_max_force()
b2d.joint.set_max_force(joint,force)
Set maximum force.
PARAMETERS
joint |
b2Joint |
mouse or motor joint |
force |
number |
maximum force |
b2d.joint.set_max_length()
b2d.joint.set_max_length(joint,length)
Set rope maximum length.
PARAMETERS
joint |
b2Joint |
rope joint |
length |
number |
maximum length in project units |
b2d.joint.set_max_length()
b2d.joint.set_max_length(joint,length)
Set the distance joint maximum length.
PARAMETERS
joint |
b2Joint |
distance joint |
length |
number |
maximum length in project units |
b2d.joint.set_max_motor_force()
b2d.joint.set_max_motor_force(joint,force)
Set maximum motor force.
PARAMETERS
joint |
b2Joint |
prismatic joint |
force |
number |
maximum motor force |
b2d.joint.set_max_motor_force()
b2d.joint.set_max_motor_force(joint,force)
Set maximum motor force.
PARAMETERS
joint |
b2Joint |
distance or prismatic joint |
force |
number |
maximum motor force |
b2d.joint.set_max_motor_torque()
b2d.joint.set_max_motor_torque(joint,torque)
Set maximum motor torque.
PARAMETERS
joint |
b2Joint |
revolute or wheel joint |
torque |
number |
maximum motor torque |
b2d.joint.set_max_motor_torque()
b2d.joint.set_max_motor_torque(joint,torque)
Set maximum motor torque.
PARAMETERS
joint |
b2Joint |
revolute or wheel joint |
torque |
number |
maximum motor torque |
b2d.joint.set_max_torque()
b2d.joint.set_max_torque(joint,torque)
Set maximum torque.
PARAMETERS
joint |
b2Joint |
friction joint |
torque |
number |
maximum torque |
b2d.joint.set_max_torque()
b2d.joint.set_max_torque(joint,torque)
Set maximum torque.
PARAMETERS
joint |
b2Joint |
motor joint |
torque |
number |
maximum torque |
b2d.joint.set_min_length()
b2d.joint.set_min_length(joint,length)
Set the distance joint minimum length.
PARAMETERS
joint |
b2Joint |
distance joint |
length |
number |
minimum length in project units |
b2d.joint.set_motor_speed()
b2d.joint.set_motor_speed(joint,speed)
Set motor speed.
PARAMETERS
joint |
b2Joint |
prismatic, revolute, or wheel joint |
speed |
number |
motor speed |
b2d.joint.set_motor_speed()
b2d.joint.set_motor_speed(joint,speed)
Set motor speed.
PARAMETERS
joint |
b2Joint |
distance, prismatic, revolute, or wheel joint |
speed |
number |
motor speed |
b2d.joint.set_mouse_target()
b2d.joint.set_mouse_target(joint,target)
Set the target for a mouse joint.
PARAMETERS
joint |
b2Joint |
mouse joint |
target |
vector3 |
world target |
b2d.joint.set_mouse_target()
b2d.joint.set_mouse_target(joint,target)
Set the target for a mouse joint.
PARAMETERS
joint |
b2Joint |
mouse joint |
target |
vector3 |
world target |
b2d.joint.set_ratio()
b2d.joint.set_ratio(joint,ratio)
Set gear joint ratio.
PARAMETERS
joint |
b2Joint |
gear joint |
ratio |
number |
gear ratio |
b2d.joint.set_reference_angle()
b2d.joint.set_reference_angle(joint,angle)
Set weld joint reference angle.
PARAMETERS
joint |
b2Joint |
weld joint |
angle |
number |
reference angle in radians |
b2d.joint.set_spring_damping_ratio()
b2d.joint.set_spring_damping_ratio(joint,ratio)
Alias for b2d.joint.set_damping_ratio.
PARAMETERS
joint |
b2Joint |
distance, mouse, weld, or wheel joint |
ratio |
number |
damping ratio |
b2d.joint.set_spring_damping_ratio()
b2d.joint.set_spring_damping_ratio(joint,ratio)
Set spring damping ratio.
PARAMETERS
joint |
b2Joint |
distance, mouse, prismatic, revolute, or wheel joint |
ratio |
number |
damping ratio |
b2d.joint.set_spring_hertz()
b2d.joint.set_spring_hertz(joint,hertz)
Set spring frequency.
PARAMETERS
joint |
b2Joint |
distance, mouse, prismatic, revolute, or wheel joint |
hertz |
number |
frequency in hertz |
b2d.joint.wake_bodies()
b2d.joint.wake_bodies(joint)
Wake the bodies connected to a joint.
PARAMETERS
joint |
b2Joint |
joint |