dao-game / files / src / game / game-board.ts
game-board.ts
| 1 | import { Coord } from "./coord"; |
| 2 | |
| 3 | export class GameBoard { |
| 4 | private board: (string | null)[]; |
| 5 | public readonly size: Coord; |
| 6 | public readonly player1Id: string; |
| 7 | public readonly player2Id: string; |
| 8 | |
| 9 | public constructor(player1Id: string, player2Id: string) { |
| 10 | // default board |
| 11 | const defaultBoard = [] |
| 12 | .concat([player1Id, null, null, player2Id]) |
| 13 | .concat([null, player1Id, player2Id, null]) |
| 14 | .concat([null, player2Id, player1Id, null]) |
| 15 | .concat([player2Id, null, null, player1Id]); |
| 16 | const testBoard = [] |
| 17 | .concat([player1Id, null, player2Id, player2Id]) |
| 18 | .concat([player1Id, null, player2Id, null]) |
| 19 | .concat([player1Id, null, null, null]) |
| 20 | .concat([null, player1Id, null, player2Id]); |
| 21 | this.board = testBoard; |
| 22 | this.size = new Coord(4, 4); |
| 23 | this.player1Id = player1Id; |
| 24 | this.player2Id = player2Id; |
| 25 | } |
| 26 | public move(source: Coord, dest: Coord): void { |
| 27 | const isP1 = this.get(source); |
| 28 | if (isP1 === null) |
| 29 | throw `Source ${source} points to an empty space`; |
| 30 | this.set(source, null); |
| 31 | this.set(dest, isP1); |
| 32 | } |
| 33 | public get(coord: Coord): boolean | null { |
| 34 | const index = this.coordToBoardIndex(coord); |
| 35 | if (!Number.isSafeInteger(index) || index < 0 || index >= this.board.length) |
| 36 | throw `Index ${index} is out of bounds`; |
| 37 | const id = this.board[index]; |
| 38 | const isP1 = id === null ? null : id === this.player1Id; |
| 39 | return isP1; |
| 40 | } |
| 41 | public getCoords(id: string): Coord[] { |
| 42 | const coords = this.board |
| 43 | .map((pieceId, index) => { |
| 44 | const isTarget = pieceId === id; |
| 45 | return isTarget ? this.boardIndexToCoord(index) : null; |
| 46 | }) |
| 47 | .filter((coord) => coord !== null); |
| 48 | return coords; |
| 49 | } |
| 50 | private set(coord: Coord, isP1: boolean | null): void { |
| 51 | const index = this.coordToBoardIndex(coord); |
| 52 | if (!Number.isSafeInteger(index) || index < 0 || index >= this.board.length) |
| 53 | throw `Index ${index} is out of bounds`; |
| 54 | this.board[index] = isP1 === null ? null : isP1 ? this.player1Id : this.player2Id; |
| 55 | } |
| 56 | public coordToBoardIndex(coord: Coord): number { |
| 57 | const { row, col } = coord; |
| 58 | const index = row * this.size.col + col; |
| 59 | return index; |
| 60 | } |
| 61 | private boardIndexToCoord(index: number): Coord { |
| 62 | const col = index % this.size.col; |
| 63 | const row = Math.floor(index / this.size.col); |
| 64 | return new Coord(row, col); |
| 65 | } |
| 66 | } |