64 lines
2.1 KiB
TypeScript
64 lines
2.1 KiB
TypeScript
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import {BOARD_SIZE, BoopGame, BoopPart, BoopState, PieceType, WIN_LENGTH} from "@/samples/boop/data";
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const DIRS = [
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[0, 1],
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[1, 0],
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[1, 1],
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[-1, 1]
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]
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type PT = [number, number];
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type Line = PT[];
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export function* getLineCandidates(){
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for(const [dx, dy] of DIRS){
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for(let x = 0; x < BOARD_SIZE; x ++)
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for(let y = 0; y < BOARD_SIZE; y ++){
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if(!isInBounds(x + dx * (WIN_LENGTH-1), y + dy * (WIN_LENGTH-1))) continue;
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const line = [];
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for(let i = 0; i < WIN_LENGTH; i ++){
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line.push([x + i * dx, y + i * dy]);
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}
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yield line as Line;
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}
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}
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}
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/**
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* 检查位置是否在棋盘范围内
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*/
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export function isInBounds(x: number, y: number): boolean {
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return x >= 0 && x < BOARD_SIZE && y >= 0 && y < BOARD_SIZE;
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}
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export function isCellOccupied(game: BoopGame | BoopState, x: number, y: number): boolean {
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const id = `${x},${y}`;
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return getState(game).regions.board.partMap[id] !== undefined;
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}
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export function* getNeighborPositions(x: number = 0, y: number = 0){
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for(let dx = -1; dx <= 1; dx ++)
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for(let dy = -1; dy <= 1; dy ++)
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if(dx !== 0 || dy !== 0)
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yield [x + dx, y + dy] as PT;
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}
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export function findPartInRegion(ctx: BoopGame | BoopState, regionId: keyof BoopGame['value']['regions'], type: PieceType): BoopPart | null {
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const state = getState(ctx);
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if(!regionId){
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return Object.values(state.pieces).find(part => part.type === type && !part.regionId) || null;
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}
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const id = state.regions[regionId].childIds.find(id => state.pieces[id].type === type);
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return id ? state.pieces[id] || null : null;
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}
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export function findPartAtPosition(ctx: BoopGame | BoopState, row: number, col: number): BoopPart | null {
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const state = getState(ctx);
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const id = state.regions.board.partMap[`${row},${col}`];
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return id ? state.pieces[id] || null : null;
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}
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function getState(ctx: BoopGame | BoopState): BoopState {
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if('value' in ctx){
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return ctx.value;
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}
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return ctx;
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}
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