45 lines
1.0 KiB
TypeScript
45 lines
1.0 KiB
TypeScript
import { Grid, Color, copyGrid, isInsideLarge } from "./grid";
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import { Point, around4 } from "./point";
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import { stepSnake, step } from "./step";
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import { copySnake, snakeSelfCollide } from "./snake";
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const isGridEmpty = (grid: Grid) => grid.data.every((x) => x === null);
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export const computeBestRun = (
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grid: Grid,
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snake: Point[],
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options: { maxSnakeLength: number }
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) => {
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const g = copyGrid(grid);
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const s = copySnake(snake);
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const q: Color[] = [];
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const commands: Point[] = [];
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let u = 500;
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while (!isGridEmpty(g) && u-- > 0) {
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let direction;
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for (let k = 10; k--; ) {
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direction = around4[Math.floor(Math.random() * around4.length)];
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const sn = copySnake(s);
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stepSnake(sn, direction, options);
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if (isInsideLarge(g, 1, sn[0].x, sn[0].y) && !snakeSelfCollide(sn)) {
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break;
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} else {
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direction = undefined;
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}
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}
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if (direction !== undefined) {
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step(g, s, q, direction, options);
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commands.push(direction);
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}
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}
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return commands;
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};
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