Class AsteroidField

constructor

• new AsteroidField(
      seed: number,
      parent: TransformNode,
      innerRadius: number,
      outerRadius: number,
      scene: Scene,
  ): AsteroidField

  Creates a new asteroid field around a given transform

  Parameters

  • seed: number

    The seed of the asteroid field
  • parent: TransformNode

    A parent transform node for the asteroids
  • innerRadius: number
  • outerRadius: number
  • scene: Scene

    The scene where the asteroid field exists

  Returns AsteroidField

ReadonlyaverageRadius

ReadonlyinnerRadius

ReadonlyneighborCellsRenderRadius

ReadonlyouterRadius

Readonlyparent

ReadonlypatchSize

ReadonlypatchThickness

Readonlyresolution

Readonlyrng

Readonlyscene

Readonlyseed

Readonlyspread

dispose

• dispose(): void

  Releases all held resources

  Returns void

update

• update(
      cameraWorldPosition: Vector3,
      asteroids: readonly Asteroid[],
      deltaSeconds: number,
  ): void

  Updates the asteroid field. The position of the camera is used to determine which chunks to load and unload. The delta seconds are used to fade in and out the chunks

  Parameters

  • cameraWorldPosition: Vector3

    The position of the camera in world space
  • asteroids: readonly Asteroid[]
  • deltaSeconds: number

    The seconds elapsed since last frame

  Returns void

StaticCreateAsteroidBuffer

• CreateAsteroidBuffer(
      position: Vector3,
      resolution: number,
      patchSize: number,
      patchThickness: number,
      minRadius: number,
      maxRadius: number,
      maxTypeIndex: number,
      rng: (index: number) => number,
  ): [Vector3[], Quaternion[], number[], Vector3[], number[]]

  Creates a matrix buffer for an asteroid patch. The patch has a given square size, subdivided in cells by the resolution parameter. Each cell contains one instance. The min and max radius ensure the asteroid don't spread to far

  Parameters

  • position: Vector3

    The position of the patch in the local space of the parent transform of any field
  • resolution: number

    The subdivision of the chunk, each cell contains a single instance
  • patchSize: number

    The overall planar size of the patch
  • patchThickness: number

    The vertical spread of the patch
  • minRadius: number

    The minimum radius at which the field starts
  • maxRadius: number

    The maximum radius at which the field ends
  • maxTypeIndex: number
  • rng: (index: number) => number

    A random number generator

  Returns [Vector3[], Quaternion[], number[], Vector3[], number[]]

  A new matrix 4x4 buffer