import { Status } from "../header"; import { Ticker } from "../Ticker"; import { BaseNode } from "./BaseNode"; /** * 可以包含多个节点的集合装饰器基类 * */ export abstract class Composite extends BaseNode { constructor(...children: BaseNode[]) { super(children); } } /** * 记忆选择节点 * 选择不为 FAILURE 的节点 * 任意一个Child Node返回不为 FAILURE, 本Node向自己的Parent Node也返回Child Node状态 */ export class MemSelector extends Composite { /** * 打开 * @param {Ticker} ticker */ public open(ticker: Ticker): void { super.open(ticker); ticker.blackboard.set("runningChild", 0, ticker.tree.id, this.id); } /** * 执行 * @param {Ticker} ticker * @returns {Status} */ public tick(ticker: Ticker): Status { let childIndex = ticker.blackboard.get("runningChild", ticker.tree.id, this.id) as number; for (let i = childIndex; i < this.children.length; i++) { let status = this.children[i]._execute(ticker); if (status !== Status.FAILURE) { if (status === Status.RUNNING) { ticker.blackboard.set("runningChild", i, ticker.tree.id, this.id); } return status; } } return Status.FAILURE; } } /** * 记忆顺序节点 * 如果上次执行到 RUNING 的节点, 下次进入节点后, 直接从 RUNING 节点开始 * 遇到 RUNING 或者 FAILURE 停止迭代 * 任意一个Child Node返回不为 SUCCESS, 本Node向自己的Parent Node也返回Child Node状态 * 所有节点都返回 SUCCESS, 本节点才返回 SUCCESS */ export class MemSequence extends Composite { /** * 打开 * @param {Ticker} ticker */ public open(ticker: Ticker): void { super.open(ticker); ticker.blackboard.set("runningChild", 0, ticker.tree.id, this.id); } /** * 执行 * @param {Ticker} ticker * @returns {Status} */ public tick(ticker: Ticker): Status { let childIndex = ticker.blackboard.get("runningChild", ticker.tree.id, this.id) as number; for (let i = childIndex; i < this.children.length; i++) { let status = this.children[i]._execute(ticker); if (status !== Status.SUCCESS) { if (status === Status.RUNNING) { ticker.blackboard.set("runningChild", i, ticker.tree.id, this.id); } return status; } } return Status.SUCCESS; } } /** * 随机选择节点 * 从Child Node中随机选择一个执行 */ export class RandomSelector extends Composite { /** * 执行 * @param {Ticker} ticker * @returns {Status} */ public tick(ticker: Ticker): Status { let childIndex = (Math.random() * this.children.length) | 0; let child = this.children[childIndex]; let status = child._execute(ticker); return status; } } /** * 选择节点,选择不为 FAILURE 的节点 * 当执行本类型Node时,它将从begin到end迭代执行自己的Child Node: * 如遇到一个Child Node执行后返回 SUCCESS 或者 RUNING,那停止迭代,本Node向自己的Parent Node也返回 SUCCESS 或 RUNING */ export class Selector extends Composite { /** * 执行 * @param {Ticker} ticker * @returns {Status} */ public tick(ticker: Ticker): Status { for (let i = 0; i < this.children.length; i++) { let status = this.children[i]._execute(ticker); if (status !== Status.FAILURE) { return status; } } return Status.FAILURE; } } /** * 顺序节点 * 当执行本类型Node时,它将从begin到end迭代执行自己的Child Node: * 遇到 FAILURE 或 RUNING, 那停止迭代,返回FAILURE 或 RUNING * 所有节点都返回 SUCCESS, 本节点才返回 SUCCESS */ export class Sequence extends Composite { /** * 执行 * @param {Ticker} ticker * @returns {Status} */ public tick(ticker: Ticker): Status { for (let i = 0; i < this.children.length; i++) { let status = this.children[i]._execute(ticker); if (status !== Status.SUCCESS) { return status; } } return Status.SUCCESS; } } /** * 并行节点 每次进入全部重新执行一遍 * 当执行本类型Node时,它将从begin到end迭代执行自己的Child Node: * 1. 当存在Child Node执行后返回 FAILURE, 本节点返回 FAILURE * 2. 当存在Child Node执行后返回 RUNING, 本节点返回 RUNING * 所有节点都返回 SUCCESS, 本节点才返回 SUCCESS */ export class Parallel extends Composite { /** * 执行 * @param {Ticker} ticker * @returns {Status} */ public tick(ticker: Ticker): Status { let result = Status.SUCCESS; for (let i = 0; i < this.children.length; i++) { let status = this.children[i]._execute(ticker); if (status == Status.FAILURE) { result = Status.FAILURE; } else if (result == Status.SUCCESS && status == Status.RUNNING) { result = Status.RUNNING; } } return result; } } /** * 并行节点 每次进入全部重新执行一遍 * 当执行本类型Node时,它将从begin到end迭代执行自己的Child Node: * 1. 当存在Child Node执行后返回 FAILURE, 本节点返回 FAILURE * 2. 任意 Child Node 返回 SUCCESS, 本节点返回 SUCCESS * 否则返回 RUNNING */ export class ParallelAnySuccess extends Composite { /** * 执行 * @param {Ticker} ticker * @returns {Status} */ public tick(ticker: Ticker): Status { let result = Status.RUNNING; for (let i = 0; i < this.children.length; i++) { let status = this.children[i]._execute(ticker); if (status == Status.FAILURE) { result = Status.FAILURE; } else if (result == Status.RUNNING && status == Status.SUCCESS) { result = Status.SUCCESS; } } return result; } }