WheelJoint2D

Physics 2DScripts: WheelJoint2DComponentFeature: 2D Physics (≈45 KB)

Optional feature

WheelJoint2D is part of 2D Physics. A build includes it only when a scene, prefab or script uses it — see Feature cropping.

From a script

import { WheelJoint2DComponent } from "mmpx";

const wheelJoint2D = this.entity.TryGetComponent(WheelJoint2DComponent);

Full API: WheelJoint2DComponent.

Fields

Field	Type	Default	Description
Connected Body connectedBody	Rigidbody2D	—	The other Rigidbody2D — empty ties it to the world
Enable Collision enableCollision	boolean	false	Whether the two connected bodies still collide with each other
Anchor X anchorX	number	0
Anchor Y anchorY	number	0
Auto Connected Anchor autoConfigureConnectedAnchor	boolean	true	Puts the connected anchor where this anchor is when the joint is created
Connected Anchor X connectedAnchorX	number	0
Connected Anchor Y connectedAnchorY	number	0
Use Motor useMotor	boolean	false

Breaking

Field	Type	Default	Description
Break Force breakForce	number (0 … ∞)	0	Breaks when pulled harder than this (kg·px/s²) — 0 = never
Break Torque breakTorque	number (0 … ∞)	0	Breaks when twisted harder than this (kg·px²/s²) — 0 = never

Suspension

Field	Type	Default	Description
Angle angle	number (°)	90°	Suspension direction in the connected body's frame (90° = up)
Frequency frequency	number (0.01 … ∞) (Hz)	4	Suspension stiffness
Damping Ratio dampingRatio	number (0 … 1)	0.7

Motor

Field	Type	Default	Description
Speed motorSpeed	number (°)	0°
Max Torque maxMotorTorque	number (0 … ∞)	1000000	kg·px²/s²