Spring class

A spring, connecting two bodies. @example const spring = Spring(boxBody, sphereBody, { restLength: 0, stiffness: 50, damping: 1, })

// Compute the force after each step
world.addEventListener('postStep', (event) => {
  spring.applyForce()
})

Constructors

Spring(Body bodyA, Body bodyB, {double restLength = 1, double stiffness = 100, double damping = 1, Vec3? localAnchorA, Vec3? localAnchorB, Vec3? worldAnchorA, Vec3? worldAnchorB})

bodyA ↔ Body: First connected body.
getter/setter pair
bodyB ↔ Body: Second connected body.
getter/setter pair
damping ↔ double: Damping of the spring. A number >= 0.
getter/setter pair
hashCode → int: The hash code for this object.
no setterinherited
localAnchorA ↔ Vec3: Anchor for bodyA in local bodyA coordinates. Where to hook the spring to body A, in local body coordinates.
getter/setter pair
localAnchorB ↔ Vec3: Anchor for bodyB in local bodyB coordinates. Where to hook the spring to body B, in local body coordinates.
getter/setter pair
restLength ↔ double: Rest length of the spring. A number > 0.
getter/setter pair
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
stiffness ↔ double: Stiffness of the spring. A number >= 0.
getter/setter pair

applyForce() → void: Apply the spring force to the connected bodies.
getWorldAnchorA(Vec3 result) → void: Get the anchor point on body A, in world coordinates. @param result The vector to store the result in.
getWorldAnchorB(Vec3 result) → void: Get the anchor point on body B, in world coordinates. @param result The vector to store the result in.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
setWorldAnchorA(Vec3 worldAnchorA) → void: et the anchor point on body A, using world coordinates.
setWorldAnchorB(Vec3 worldAnchorB) → void: Set the anchor point on body B, using world coordinates.
toString() → String: A string representation of this object.
inherited