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Clean up

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syuilo 2018-08-04 20:28:18 +09:00
parent f98644978e
commit 1e30e89375
1 changed files with 0 additions and 63 deletions
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63
src/back.ts
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@ -295,69 +295,6 @@ function think() {
}
};
/**
* αβ法での探索(キャッシュ無し)(デバッグ用)
*/
const dive2 = (pos: number, alpha = -Infinity, beta = Infinity, depth = 0): number => {
// 試し打ち
o.put(o.turn, pos);
const isBotTurn = o.turn === botColor;
// 勝った
if (o.turn === null) {
const winner = o.winner;
// 勝つことによる基本スコア
const base = 10000;
let score;
if (game.settings.isLlotheo) {
// 勝ちは勝ちでも、より自分の石を少なくした方が美しい勝ちだと判定する
score = o.winner ? base - (o.blackCount * 100) : base - (o.whiteCount * 100);
} else {
// 勝ちは勝ちでも、より相手の石を少なくした方が美しい勝ちだと判定する
score = o.winner ? base + (o.blackCount * 100) : base + (o.whiteCount * 100);
}
// 巻き戻し
o.undo();
// 接待なら自分が負けた方が高スコア
return isSettai
? winner !== botColor ? score : -score
: winner === botColor ? score : -score;
}
if (depth === maxDepth) {
// 静的に評価
const score = staticEval();
// 巻き戻し
o.undo();
return score;
} else {
const cans = o.canPutSomewhere(o.turn);
// 次のターンのプレイヤーにとって最も良い手を取得
for (const p of cans) {
if (isBotTurn) {
alpha = Math.max(alpha, dive2(p, alpha, beta, depth + 1));
} else {
beta = Math.min(beta, dive2(p, alpha, beta, depth + 1));
}
if (alpha >= beta) break;
}
// 巻き戻し
o.undo();
return isBotTurn ? alpha : beta;
}
};
const cans = o.canPutSomewhere(botColor);
const scores = cans.map(p => dive(p));
const pos = cans[scores.indexOf(Math.max(...scores))];