@ue-too/dynamics / index / PinJoint

Class: PinJoint

Defined in: constraint.ts:149

Pin joint connecting two bodies together.

Remarks

Connects two bodies at specified anchor points. The bodies can rotate relative to each other around the joint.

Useful for creating chains, ragdolls, and mechanical linkages.

Example

Create a chain

const link1 = new Circle({ x: 0, y: 0 }, 10);
const link2 = new Circle({ x: 30, y: 0 }, 10);

const joint = new PinJoint(
  link1,
  link2,
  { x: 10, y: 0 },   // Right edge of link1
  { x: -10, y: 0 }   // Left edge of link2
);

world.addRigidBody('link1', link1);
world.addRigidBody('link2', link2);
world.addConstraint(joint);

Implements

• Constraint

Constructors

Constructor

new PinJoint(bodyA, bodyB, anchorA, anchorB): PinJoint

Defined in: constraint.ts:155

Parameters

bodyA

RigidBody

bodyB

RigidBody

anchorA

Point

anchorB

Point

Returns

PinJoint

Methods

enforce()

enforce(dt): void

Defined in: constraint.ts:167

Enforces the constraint for one timestep.

Parameters

dt

number

Timestep in seconds

Returns

void

Implementation of

Constraint.enforce

---

solvePinJointConstraint()

solvePinJointConstraint(dt): void

Defined in: constraint.ts:171

Parameters

dt

number

Returns

void