src/engine/turns.js


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import { board } from "../board.js"
import { Vector2 } from "../engine/visual/vector2.js"
import { Link } from "../link.js"
import { PLAYER } from "../constants.js"
import { isMoveLegal } from "../engine/moves.js"

export let playerTurn = ""

export function nextTurn() {
    changeTurn()
    placeLinks()
}

function changeTurn() {
    playerTurn = playerTurn == PLAYER.BLACK ? PLAYER.WHITE : PLAYER.BLACK
}

function placeLinks() {
    resetLink()
    board.links = [...Array(board.size)].map(_ => Array(board.size))
    for (let row = 0; row < board.size; row++) {
        for (let col = 0; col < board.size; col++) {
            tryLink(new Vector2(row, col))
        }
    }
}

function resetLink() {
    Array.from(board.links).forEach(x => {
        Array.from(x)
	    .filter((x) => x !== undefined)
	    .map(y => {
		y.removeLink()
	    })
    })
}

function tryLink(position) {
    if (!isMoveLegal({
	position: position,
	team: playerTurn
    })) {
	return
    }

    new Link({
        position: position,
    })
}