@ue-too/dynamics / index / Crescent

Class: Crescent

Defined in: crescent-fan.ts:14

Static rigid body shaped as a circular arc barrier (outer rail segment). SAT projection logic matches the Python Crescent used in hrphysics-simulation.

Param

Arc center (same as track JSON center)

Param

Arc radius

Param

Signed sweep in radians; normalized internally like Python

Param

Angle from +x to the first arc endpoint (radians)

Extends

• BaseRigidBody

Constructors

Constructor

new Crescent(center, radius, angleSpan, orientationAngle, mass, isStatic, frictionEnabled): Crescent

Defined in: crescent-fan.ts:20

Parameters

center

Point = ...

radius

number

angleSpan

number

orientationAngle

number = 0

mass

number = 500

isStatic

boolean = true

frictionEnabled

boolean = false

Returns

Crescent

Overrides

BaseRigidBody.constructor

Properties

_angularVelocity

protected _angularVelocity: number

Defined in: rigidbody.ts:74

Inherited from

BaseRigidBody._angularVelocity

---

_center

protected _center: Point

Defined in: rigidbody.ts:71

Inherited from

BaseRigidBody._center

---

_linearVelocity

protected _linearVelocity: Point

Defined in: rigidbody.ts:73

Inherited from

BaseRigidBody._linearVelocity

---

_mass

protected _mass: number = 50

Defined in: rigidbody.ts:72

Inherited from

BaseRigidBody._mass

---

_orientationAngle

protected _orientationAngle: number = 0

Defined in: rigidbody.ts:75

Inherited from

BaseRigidBody._orientationAngle

---

_staticFrictionCoeff

protected _staticFrictionCoeff: number = 0.3

Defined in: rigidbody.ts:79

Inherited from

BaseRigidBody._staticFrictionCoeff

---

angularDampingFactor

protected angularDampingFactor: number = 0.005

Defined in: rigidbody.ts:83

Inherited from

BaseRigidBody.angularDampingFactor

---

collisionFilter

collisionFilter: CollisionFilter

Defined in: rigidbody.ts:86

Collision filtering configuration

Inherited from

BaseRigidBody.collisionFilter

---

dynamicFrictionCoeff

protected dynamicFrictionCoeff: number = 0.3

Defined in: rigidbody.ts:80

Inherited from

BaseRigidBody.dynamicFrictionCoeff

---

force

protected force: Point

Defined in: rigidbody.ts:77

Inherited from

BaseRigidBody.force

---

frictionEnabled

protected frictionEnabled: boolean = false

Defined in: rigidbody.ts:81

Inherited from

BaseRigidBody.frictionEnabled

---

isMovingStaticBody

protected isMovingStaticBody: boolean = false

Defined in: rigidbody.ts:82

Inherited from

BaseRigidBody.isMovingStaticBody

---

isSleeping

isSleeping: boolean = false

Defined in: rigidbody.ts:89

Inherited from

BaseRigidBody.isSleeping

---

isStaticBody

protected isStaticBody: boolean = false

Defined in: rigidbody.ts:78

Inherited from

BaseRigidBody.isStaticBody

---

linearAcceleartion

protected linearAcceleartion: Point

Defined in: rigidbody.ts:76

Inherited from

BaseRigidBody.linearAcceleartion

---

sleepThreshold

sleepThreshold: number = 0.01

Defined in: rigidbody.ts:90

Inherited from

BaseRigidBody.sleepThreshold

---

sleepTime

sleepTime: number = 0.5

Defined in: rigidbody.ts:91

Inherited from

BaseRigidBody.sleepTime

---

timeAtRest

timeAtRest: number = 0

Defined in: rigidbody.ts:92

Inherited from

BaseRigidBody.timeAtRest

Accessors

AABB

Get Signature

get AABB(): object

Defined in: crescent-fan.ts:119

Axis-Aligned Bounding Box for broad phase collision

Returns

object

max

max: Point

min

min: Point

Axis-Aligned Bounding Box for broad phase collision

Overrides

BaseRigidBody.AABB

---

angularVelocity

Get Signature

get angularVelocity(): number

Defined in: rigidbody.ts:130

Angular velocity (radians/second)

Returns

number

Set Signature

set angularVelocity(angularVelocity): void

Defined in: rigidbody.ts:134

Angular velocity (radians/second)

Parameters

angularVelocity

number

Returns

void

Angular velocity (radians/second)

Inherited from

BaseRigidBody.angularVelocity

---

center

Get Signature

get center(): Point

Defined in: rigidbody.ts:290

Center position in world coordinates

Returns

Point

Set Signature

set center(dest): void

Defined in: rigidbody.ts:294

Center position in world coordinates

Parameters

dest

Point

Returns

void

Center position in world coordinates

Inherited from

BaseRigidBody.center

---

linearVelocity

Get Signature

get linearVelocity(): Point

Defined in: rigidbody.ts:298

Linear velocity (pixels/second)

Returns

Point

Set Signature

set linearVelocity(dest): void

Defined in: rigidbody.ts:302

Linear velocity (pixels/second)

Parameters

dest

Point

Returns

void

Linear velocity (pixels/second)

Inherited from

BaseRigidBody.linearVelocity

---

mass

Get Signature

get mass(): number

Defined in: rigidbody.ts:306

Mass in arbitrary units (affects force response)

Returns

number

Mass in arbitrary units (affects force response)

Inherited from

BaseRigidBody.mass

---

momentOfInertia

Get Signature

get momentOfInertia(): number

Defined in: crescent-fan.ts:66

Moment of inertia (rotational mass)

Returns

number

Moment of inertia (rotational mass)

Overrides

BaseRigidBody.momentOfInertia

---

orientationAngle

Get Signature

get orientationAngle(): number

Defined in: rigidbody.ts:138

Rotation angle in radians

Returns

number

Rotation angle in radians

Inherited from

BaseRigidBody.orientationAngle

---

staticFrictionCoeff

Get Signature

get staticFrictionCoeff(): number

Defined in: rigidbody.ts:310

Static friction coefficient (0-1)

Returns

number

Set Signature

set staticFrictionCoeff(coeff): void

Defined in: rigidbody.ts:314

Static friction coefficient (0-1)

Parameters

coeff

number

Returns

void

Static friction coefficient (0-1)

Inherited from

BaseRigidBody.staticFrictionCoeff

Methods

applyForce()

applyForce(force): void

Defined in: rigidbody.ts:162

Parameters

force

Point

Returns

void

Inherited from

BaseRigidBody.applyForce

---

applyForceInOrientation()

applyForceInOrientation(force): void

Defined in: rigidbody.ts:170

Parameters

force

number | Point

Returns

void

Inherited from

BaseRigidBody.applyForceInOrientation

---

getAdjacentFaces()

getAdjacentFaces(_collisionNormal): object[]

Defined in: crescent-fan.ts:159

Parameters

_collisionNormal

Point

Returns

object[]

Overrides

BaseRigidBody.getAdjacentFaces

---

getCenter()

getCenter(): Point

Defined in: rigidbody.ts:122

Returns

Point

Inherited from

BaseRigidBody.getCenter

---

getCollisionAxes()

getCollisionAxes(relativeBody): Point[]

Defined in: crescent-fan.ts:106

Parameters

relativeBody

RigidBody

Returns

Point[]

Overrides

BaseRigidBody.getCollisionAxes

---

getMinMaxProjection()

getMinMaxProjection(unitvector): object

Defined in: crescent-fan.ts:70

Parameters

unitvector

Point

Returns

object

max

max: number

min

min: number

Overrides

BaseRigidBody.getMinMaxProjection

---

getNormalOfSignificantFace()

getNormalOfSignificantFace(collisionNormal): Point

Defined in: crescent-fan.ts:155

Parameters

collisionNormal

Point

Returns

Point

Overrides

BaseRigidBody.getNormalOfSignificantFace

---

getOrientationAngle()

getOrientationAngle(): number

Defined in: rigidbody.ts:126

Returns

number

Inherited from

BaseRigidBody.getOrientationAngle

---

getSignificantVertices()

getSignificantVertices(collisionNormal): Point[]

Defined in: crescent-fan.ts:151

Parameters

collisionNormal

Point

Returns

Point[]

Overrides

BaseRigidBody.getSignificantVertices

---

isMovingStatic()

isMovingStatic(): boolean

Defined in: rigidbody.ts:146

Returns

boolean

Inherited from

BaseRigidBody.isMovingStatic

---

isStatic()

isStatic(): boolean

Defined in: rigidbody.ts:142

Returns

boolean

Inherited from

BaseRigidBody.isStatic

---

move()

move(delta): void

Defined in: crescent-fan.ts:61

Parameters

delta

Point

Returns

void

Overrides

BaseRigidBody.move

---

rotateRadians()

rotateRadians(angle): void

Defined in: rigidbody.ts:118

Parameters

angle

number

Returns

void

Inherited from

BaseRigidBody.rotateRadians

---

setLinearVelocity()

setLinearVelocity(linearVelocity): void

Defined in: rigidbody.ts:150

Parameters

linearVelocity

Point

Returns

void

Inherited from

BaseRigidBody.setLinearVelocity

---

setMovingStatic()

setMovingStatic(movingStatic): void

Defined in: rigidbody.ts:154

Parameters

movingStatic

boolean

Returns

void

Inherited from

BaseRigidBody.setMovingStatic

---

setOrientationAngle()

setOrientationAngle(angle): void

Defined in: rigidbody.ts:158

Parameters

angle

number

Returns

void

Inherited from

BaseRigidBody.setOrientationAngle

---

setSleeping()

setSleeping(sleeping): void

Defined in: rigidbody.ts:334

Parameters

sleeping

boolean

Returns

void

Inherited from

BaseRigidBody.setSleeping

---

significantVertex()

significantVertex(collisionNormal): Point

Defined in: crescent-fan.ts:137

Parameters

collisionNormal

Point

Returns

Point

Overrides

BaseRigidBody.significantVertex

---

step()

step(deltaTime): void

Defined in: crescent-fan.ts:52

Parameters

deltaTime

number

Returns

void

Overrides

BaseRigidBody.step

---

updateSleeping()

updateSleeping(deltaTime): void

Defined in: rigidbody.ts:345

Parameters

deltaTime

number

Returns

void

Inherited from

BaseRigidBody.updateSleeping