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feat : eval bar value on win percentage

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This commit is contained in:
GuillaumeSD
2024-03-07 22:50:06 +01:00
parent e47ce83ebe
commit a10b9c0482
4 changed files with 26 additions and 28 deletions
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26
src/lib/chess.ts
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@@ -1,6 +1,7 @@
import { EvaluateGameParams, LineEval } from "@/types/eval";
import { EvaluateGameParams, PositionEval } from "@/types/eval";
import { Game } from "@/types/game";
import { Chess } from "chess.js";
import { getPositionWinPercentage } from "./engine/helpers/winPercentage";
export const getEvaluateGameParams = (game: Chess): EvaluateGameParams => {
const history = game.history({ verbose: true });
@@ -89,31 +90,26 @@ export const moveLineUciToSan = (
};
export const getEvaluationBarValue = (
bestLine: LineEval,
whiteToPlay: boolean
position: PositionEval
): { whiteBarPercentage: number; label: string } => {
if (bestLine.mate) {
return {
whiteBarPercentage: whiteToPlay && bestLine.mate > 0 ? 100 : 0,
label: `M${Math.abs(bestLine.mate)}`,
};
}
const whiteBarPercentage = getPositionWinPercentage(position);
const bestLine = position.lines[0];
if (!bestLine.cp) {
return { whiteBarPercentage: 50, label: "0.0" };
if (bestLine.mate) {
return { label: `M${Math.abs(bestLine.mate)}`, whiteBarPercentage };
}
const cp = bestLine.cp;
const whiteBarPercentage = Math.min(50 + cp / 20, 98);
if (!cp) return { whiteBarPercentage, label: "0.0" };
const pEval = Math.abs(cp) / 100;
const label = pEval.toFixed(1);
let label = pEval.toFixed(1);
if (label.toString().length > 3) {
return { whiteBarPercentage, label: pEval.toFixed(0) };
label = pEval.toFixed(0);
}
return { whiteBarPercentage, label: pEval.toFixed(1) };
return { whiteBarPercentage, label };
};
export const getWhoIsCheckmated = (fen: string): "w" | "b" | null => {