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267
assets/scripts/LevelBuilder.ts
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267
assets/scripts/LevelBuilder.ts
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import {
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Node,
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Prefab,
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instantiate,
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Sprite,
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SpriteFrame,
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UITransform,
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Vec3,
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} from "cc";
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import { BoardShapes, BoardShapeName } from "./BoardShape";
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export interface LevelConfig {
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rows?: number;
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cols?: number;
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blockSize?: number;
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tileTypes?: number;
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currentShape?: BoardShapeName;
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isTutorial?: boolean;
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fixedBoard?: number[][];
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}
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export class LevelBuilder {
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public board: number[][] = [];
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public blockNodes: (Node | null)[][] = [];
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public rows: number = 0;
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public cols: number = 0;
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private node: Node;
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private blockPrefab: Prefab;
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private spriteFrames: SpriteFrame[] = [];
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private blockSize: number = 100;
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private tileTypes: number = 5;
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public currentShape: BoardShapeName = "rectangle";
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private fixedBoard: number[][] | null = null;
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constructor(
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node: Node,
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blockPrefab: Prefab,
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spriteFrames: SpriteFrame[],
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config?: LevelConfig,
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) {
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this.node = node;
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this.blockPrefab = blockPrefab;
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this.spriteFrames = spriteFrames;
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if (config) {
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this.blockSize = config.blockSize ?? this.blockSize;
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this.tileTypes = config.tileTypes ?? this.tileTypes;
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if (config.currentShape) this.currentShape = config.currentShape;
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if (config.fixedBoard) this.fixedBoard = config.fixedBoard;
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}
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}
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public buildBoard(): void {
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if (this.fixedBoard) {
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this.buildFixedBoard();
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return;
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}
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const shapeTemplate = BoardShapes[this.currentShape];
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if (!shapeTemplate) throw new Error(`Shape "${this.currentShape}" 未定义`);
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const maxCols = Math.max(...shapeTemplate.map((row) => row.length));
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const rows = shapeTemplate.length;
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// 自动补齐矩形
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const fixedTemplate: number[][] = [];
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for (let r = 0; r < rows; r++) {
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fixedTemplate[r] = [];
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for (let c = 0; c < maxCols; c++) {
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fixedTemplate[r][c] = shapeTemplate[r][c] ?? 0;
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}
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}
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// 收集可用格子
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const validCells = [];
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for (let r = 0; r < rows; r++) {
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for (let c = 0; c < maxCols; c++) {
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if (fixedTemplate[r][c] === 1) validCells.push({ r, c });
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}
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}
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if (validCells.length % 2 !== 0) throw new Error("有效格子数量必须为偶数");
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// 随机生成配对
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let tiles: number[] = [];
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for (let i = 0; i < validCells.length / 2; i++) {
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const id = i % this.tileTypes;
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tiles.push(id, id);
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}
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for (let i = tiles.length - 1; i > 0; i--) {
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const j = Math.floor(Math.random() * (i + 1));
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[tiles[i], tiles[j]] = [tiles[j], tiles[i]];
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}
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let tileIndex = 0;
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this.board = [];
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this.blockNodes = [];
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this.rows = rows;
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this.cols = maxCols;
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for (let r = 0; r < rows; r++) {
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this.board[r] = [];
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this.blockNodes[r] = [];
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for (let c = 0; c < maxCols; c++) {
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if (fixedTemplate[r][c] === 1) {
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const tileId = tiles[tileIndex++];
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this.board[r][c] = tileId;
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const block = this.createNormalBlock(tileId);
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block.setPosition(this.getPos(r, c));
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this.node.addChild(block);
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this.blockNodes[r][c] = block;
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} else if (fixedTemplate[r][c] === -1) {
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this.board[r][c] = -1;
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this.blockNodes[r][c] = null;
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} else {
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this.board[r][c] = -2;
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const stone = this.createStoneBlock();
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stone.setPosition(this.getPos(r, c));
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this.node.addChild(stone);
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this.blockNodes[r][c] = stone;
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}
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}
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}
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}
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private buildFixedBoard() {
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this.rows = this.fixedBoard.length;
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this.cols = this.fixedBoard[0].length;
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this.board = [];
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this.blockNodes = [];
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for (let r = 0; r < this.rows; r++) {
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this.board[r] = [];
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this.blockNodes[r] = [];
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for (let c = 0; c < this.cols; c++) {
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const val = this.fixedBoard[r][c];
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this.board[r][c] = val;
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if (val >= 0) {
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const block = this.createNormalBlock(val);
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block.setPosition(this.getPos(r, c));
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this.node.addChild(block);
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this.blockNodes[r][c] = block;
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} else if (val === -1) {
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this.blockNodes[r][c] = null;
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} else if (val === -2) {
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const stone = this.createStoneBlock();
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stone.setPosition(this.getPos(r, c));
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this.node.addChild(stone);
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this.blockNodes[r][c] = stone;
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}
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}
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}
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}
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private createNormalBlock(tileId: number) {
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const block = instantiate(this.blockPrefab);
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const bgNode = block.getChildByName("Bg");
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const bgUI =
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bgNode.getComponent(UITransform) ?? bgNode.addComponent(UITransform);
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bgUI.setContentSize(this.blockSize, this.blockSize);
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const iconNode = block.getChildByName("Icon");
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const iconUI =
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iconNode.getComponent(UITransform) ?? iconNode.addComponent(UITransform);
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const iconUI_sprite = iconNode.getComponent(Sprite)!;
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iconUI_sprite.spriteFrame = this.spriteFrames[tileId];
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iconUI.setContentSize(this.blockSize * 0.7, this.blockSize * 0.7);
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iconNode.setPosition(0, 0, 0);
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return block;
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}
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private createStoneBlock() {
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const stone = instantiate(this.blockPrefab);
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const bgNode = stone.getChildByName("Bg");
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const bgUI =
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bgNode.getComponent(UITransform) ?? bgNode.addComponent(UITransform);
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bgUI.setContentSize(this.blockSize, this.blockSize);
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const iconNode = stone.getChildByName("Icon");
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iconNode.active = false;
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return stone;
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}
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private getPos(row: number, col: number): Vec3 {
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const x =
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col * this.blockSize -
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(this.cols * this.blockSize) / 2 +
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this.blockSize / 2;
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const y =
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(this.rows * this.blockSize) / 2 -
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row * this.blockSize -
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this.blockSize / 2;
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return new Vec3(x, y, 0);
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}
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/**
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* 新建 UI 节点，并设置类型和位置
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*/
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public createBlockNode(type: number, r: number, c: number): Node {
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let block: Node;
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if (type >= 0) {
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// 普通方块
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block = this.createNormalBlock(type);
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} else if (type === -2) {
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// 石头障碍
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block = this.createStoneBlock();
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} else {
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// 空格不需要节点
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return null!;
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}
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block.setPosition(this.getPos(r, c));
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this.node.addChild(block);
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return block;
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}
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/**
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* 更新节点的贴图/颜色/数字等显示
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*/
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public setBlockType(node: Node, type: number): void {
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if (!node) return;
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const iconNode = node.getChildByName("Icon");
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if (!iconNode) return;
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if (type >= 0) {
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// 普通方块
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iconNode.active = true;
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const iconUI =
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iconNode.getComponent(UITransform) ??
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iconNode.addComponent(UITransform);
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const iconUI_sprite = iconNode.getComponent(Sprite)!;
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iconUI_sprite.spriteFrame = this.spriteFrames[type];
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iconUI.setContentSize(this.blockSize * 0.7, this.blockSize * 0.7);
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iconNode.setPosition(0, 0, 0);
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} else if (type === -2) {
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// 石头
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iconNode.active = false;
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} else {
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// 空格
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iconNode.active = false;
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}
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}
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/**
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* 更新节点的坐标位置（UI 上）
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*/
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public setBlockPosition(node: Node, r: number, c: number): void {
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if (!node) return;
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node.setPosition(this.getPos(r, c));
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}
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/**
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* 销毁节点或隐藏
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*/
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public destroyBlockNode(node: Node): void {
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if (!node) return;
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node.destroy(); // 如果想复用可改为 node.active = false
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}
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}
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