Constraints

abstract class `CP::Constraint`
inherits `Reference` #

A constraint is something that describes how two bodies interact with each other (how they constrain each other). Constraints can be simple joints that allow bodies to pivot around each other like the bones in your body, or they can be more abstract like the gear joint or motors.

Direct known subclasses

CP::Constraint::DampedRotarySpring CP::Constraint::DampedSpring CP::Constraint::GearJoint CP::Constraint::GrooveJoint CP::Constraint::PinJoint CP::Constraint::PivotJoint CP::Constraint::RatchetJoint CP::Constraint::RotaryLimitJoint CP::Constraint::SimpleMotor CP::Constraint::SlideJoint

Methods#

`#bodies : ::Tuple(Body, Body)`#

Get the bodies the constraint is attached to.

Constraints

abstract class CP::Constraint inherits Reference #

Direct known subclasses

Methods#

#bodies : ::Tuple(Body, Body)#

#body_a : Body#

#body_b : Body#

#collide_bodies=(collide_bodies : Bool)#

#collide_bodies? : Bool#

#error_bias : Float64#

#error_bias=(error_bias : Number)#

#impulse : Float64#

#max_bias : Float64#

#max_bias=(max_bias : Number)#

#max_force : Float64#

#max_force=(max_force : Number)#

#post_solve(space : Space)#

#pre_solve(space : Space)#

#space : Space | ::Nil#

class CP::Constraint::DampedRotarySpring inherits CP::Constraint #

Constructors#

.new(a : Body, b : Body, rest_angle : Number, stiffness : Number, damping : Number)#

Methods#

#damping : Float64#

#damping=(damping : Number)#

#rest_angle : Float64#

#rest_angle=(rest_angle : Number)#

#spring_torque(relative_angle : Float64) : Number#

#stiffness : Float64#

#stiffness=(stiffness : Number)#

class CP::Constraint::DampedSpring inherits CP::Constraint #

Constructors#

.new(a : Body, b : Body, anchor_a : Vect, anchor_b : Vect, rest_length : Number, stiffness : Number, damping : Number)#

Methods#

#anchor_a : Vect#

#anchor_a=(anchor_a : Vect)#

#anchor_b : Vect#

#anchor_b=(anchor_b : Vect)#

#damping : Float64#

#damping=(damping : Number)#

#rest_length : Float64#

#rest_length=(rest_length : Number)#

#spring_force(dist : Float64) : Number#

#stiffness : Float64#

#stiffness=(stiffness : Number)#

class CP::Constraint::GearJoint inherits CP::Constraint #

Constructors#

.new(a : Body, b : Body, phase : Number, ratio : Number)#

Methods#

#phase : Float64#

#phase=(phase : Number)#

#ratio : Float64#

#ratio=(ratio : Number)#

class CP::Constraint::GrooveJoint inherits CP::Constraint #

Constructors#

.new(a : Body, b : Body, groove_a : Vect, groove_b : Vect, anchor_b : Vect)#

Methods#

#anchor_b : Vect#

#anchor_b=(anchor_b : Vect)#

#groove_a : Vect#

#groove_a=(groove_a : Vect)#

#groove_b : Vect#

#groove_b=(groove_b : Vect)#

class CP::Constraint::PinJoint inherits CP::Constraint #

Constructors#

.new(a : Body, b : Body, anchor_a : Vect, anchor_b : Vect)#

Methods#

#anchor_a : Vect#

#anchor_a=(anchor_a : Vect)#

#anchor_b : Vect#

#anchor_b=(anchor_b : Vect)#

#dist : Float64#

#dist=(dist : Number)#

class CP::Constraint::PivotJoint inherits CP::Constraint #

Constructors#

.new(a : Body, b : Body, anchor_a : Vect, anchor_b : Vect)#

.new(a : Body, b : Body, pivot : Vect) : self#

Methods#

#anchor_a : Vect#

#anchor_a=(anchor_a : Vect)#

abstract class `CP::Constraint`
inherits `Reference` #

`#bodies : ::Tuple(Body, Body)`#

`#body_a : Body`#

`#body_b : Body`#

`#collide_bodies=(collide_bodies : Bool)`#

`#collide_bodies? : Bool`#

`#error_bias : Float64`#

`#error_bias=(error_bias : Number)`#

`#impulse : Float64`#

`#max_bias : Float64`#

`#max_bias=(max_bias : Number)`#

`#max_force : Float64`#

`#max_force=(max_force : Number)`#

`#post_solve(space : Space)`#

`#pre_solve(space : Space)`#

`#space : Space | ::Nil`#

class `CP::Constraint::DampedRotarySpring`
inherits `CP::Constraint` #

`.new(a : Body, b : Body, rest_angle : Number, stiffness : Number, damping : Number)`#

`#damping : Float64`#

`#damping=(damping : Number)`#

`#rest_angle : Float64`#

`#rest_angle=(rest_angle : Number)`#

`#spring_torque(relative_angle : Float64) : Number`#

`#stiffness : Float64`#

`#stiffness=(stiffness : Number)`#

class `CP::Constraint::DampedSpring`
inherits `CP::Constraint` #

`.new(a : Body, b : Body, anchor_a : Vect, anchor_b : Vect, rest_length : Number, stiffness : Number, damping : Number)`#

`#anchor_a : Vect`#

`#anchor_a=(anchor_a : Vect)`#

`#anchor_b : Vect`#

`#anchor_b=(anchor_b : Vect)`#

`#damping : Float64`#

`#damping=(damping : Number)`#

`#rest_length : Float64`#

`#rest_length=(rest_length : Number)`#

`#spring_force(dist : Float64) : Number`#

`#stiffness : Float64`#

`#stiffness=(stiffness : Number)`#

class `CP::Constraint::GearJoint`
inherits `CP::Constraint` #

`.new(a : Body, b : Body, phase : Number, ratio : Number)`#

`#phase : Float64`#

`#phase=(phase : Number)`#

`#ratio : Float64`#

`#ratio=(ratio : Number)`#

class `CP::Constraint::GrooveJoint`
inherits `CP::Constraint` #

`.new(a : Body, b : Body, groove_a : Vect, groove_b : Vect, anchor_b : Vect)`#

`#anchor_b : Vect`#

`#anchor_b=(anchor_b : Vect)`#

`#groove_a : Vect`#

`#groove_a=(groove_a : Vect)`#

`#groove_b : Vect`#

`#groove_b=(groove_b : Vect)`#

class `CP::Constraint::PinJoint`
inherits `CP::Constraint` #

`.new(a : Body, b : Body, anchor_a : Vect, anchor_b : Vect)`#

`#anchor_a : Vect`#

`#anchor_a=(anchor_a : Vect)`#

`#anchor_b : Vect`#

`#anchor_b=(anchor_b : Vect)`#

`#dist : Float64`#

`#dist=(dist : Number)`#

class `CP::Constraint::PivotJoint`
inherits `CP::Constraint` #

`.new(a : Body, b : Body, anchor_a : Vect, anchor_b : Vect)`#

`.new(a : Body, b : Body, pivot : Vect) : self`#

`#anchor_a : Vect`#

`#anchor_a=(anchor_a : Vect)`#

`#anchor_b : Vect`#

`#anchor_b=(anchor_b : Vect)`#

class `CP::Constraint::RatchetJoint`
inherits `CP::Constraint` #

`.new(a : Body, b : Body, phase : Number, ratchet : Number)`#

`#angle : Float64`#

`#angle=(angle : Number)`#

`#phase : Float64`#

`#phase=(phase : Number)`#

`#ratchet : Float64`#

`#ratchet=(ratchet : Number)`#

class `CP::Constraint::RotaryLimitJoint`
inherits `CP::Constraint` #

`.new(a : Body, b : Body, min : Number, max : Number)`#

`#max : Float64`#

`#max=(max : Number)`#

`#min : Float64`#