Class Tile

constructor

• new Tile(i: number, j: number, map: GameMap): Tile

  Creates a new Tile.

  Parameters

  • i: number

    X index.

  • j: number

    Y index.

  • map: GameMap

    The map instance.

  Returns Tile

dx

dy

i

id

j

map

neighbors

objs

walls

x

y

addWall

• addWall(direction: number, remove?: boolean, neighbor?: boolean): void

  Adds or removes a wall.

  Parameters

  • direction: number

    0: top, 1: left, 2: bottom, 3: right.

  • remove: boolean = false

    Whether to remove the wall.

  • neighbor: boolean = true

    Whether to update the neighbor as well.

  Returns void

corners

• corners(): { w: boolean; x: number; y: number }[]

  Return the coordinates of the corners of the tile and whether they're part of some wall.

  Returns { w: boolean; x: number; y: number }[]

  List of corners with {x, y, w}.

draw

• draw(context: CanvasRenderingContext2D): void

  Draw the tile walls.

  Parameters

  • context: CanvasRenderingContext2D

    The context.

  Returns void

getWalls

• getWalls(x: number, y: number): boolean[]

  Is there any walls between the tile and a point at x,y?

  Parameters

  • x: number

    X coordinate.

  • y: number

    Y coordinate.

  Returns boolean[]

  List of walls encountered.

pathTo

• pathTo(
      condition: (tile: Tile) => boolean,
      path?: Tile[],
      minPathLength?: number | null,
      maxPathLength?: number | null,
  ): Tile[] | null

  Recursively find the shortest path to any tile in map where condition is met.

  Parameters

  • condition: (tile: Tile) => boolean

    Function returning boolean.

  • path: Tile[] = []

    Current path.

  • minPathLength: number | null = null

    Optimization: abort if path is longer than this.

  • maxPathLength: number | null = null

    Max allowed path length.

  Returns Tile[] | null

  The path or null if not found.

randomWalk

• randomWalk(distance: number): Tile

  Random walk along the map.

  Parameters

  • distance: number

    Steps to walk.

  Returns Tile

  The final tile.

xypathToObj

• xypathToObj(
      condition: (obj: GameObject) => boolean,
      maxPathLength?: number | null,
  ): Coord[] | null

  Find any object that matches the condition and return a path of coordinates to it.

  Parameters

  • condition: (obj: GameObject) => boolean

    Match condition.

  • maxPathLength: number | null = null

    Max path length.

  Returns Coord[] | null

  Path to object or null.