92 lines
2.2 KiB
TypeScript
92 lines
2.2 KiB
TypeScript
import { _decorator, Animation, Component } from 'cc'
|
||
import { EntityTypeEnum, FsmParamTypeEnum } from '../Enum'
|
||
const { ccclass } = _decorator
|
||
import State from './State'
|
||
import SubStateMachine from './SubStateMachine'
|
||
|
||
type ParamsValueType = boolean | number
|
||
|
||
export interface IParamsValue {
|
||
type: FsmParamTypeEnum
|
||
value: ParamsValueType
|
||
}
|
||
|
||
export const getInitParamsTrigger = () => {
|
||
return {
|
||
type: FsmParamTypeEnum.Trigger,
|
||
value: false,
|
||
}
|
||
}
|
||
|
||
export const getInitParamsNumber = () => {
|
||
return {
|
||
type: FsmParamTypeEnum.Number,
|
||
value: 0,
|
||
}
|
||
}
|
||
|
||
/***
|
||
* 流动图
|
||
* 1.entity的state或者direction改变触发setter
|
||
* 2.setter里触发fsm的setParams方法
|
||
* 3.setParams执行run方法（run方法由子类重写）
|
||
* 4.run方法会更改currentState，然后触发currentState的setter
|
||
* 5-1.如果currentState是子状态机，继续执行他的run方法，run方法又会设置子状态机的currentState，触发子状态run方法
|
||
* 5-2.如果是子状态，run方法就是播放动画
|
||
*/
|
||
|
||
/***
|
||
* 有限状态机基类
|
||
*/
|
||
@ccclass('StateMachine')
|
||
export default abstract class StateMachine extends Component {
|
||
private _currentState: State | SubStateMachine = null
|
||
params: Map<string, IParamsValue> = new Map()
|
||
stateMachines: Map<string, SubStateMachine | State> = new Map()
|
||
animationComponent: Animation
|
||
type: EntityTypeEnum
|
||
|
||
getParams(paramName: string) {
|
||
if (this.params.has(paramName)) {
|
||
return this.params.get(paramName).value
|
||
}
|
||
}
|
||
|
||
setParams(paramName: string, value: ParamsValueType) {
|
||
if (this.params.has(paramName)) {
|
||
this.params.get(paramName).value = value
|
||
this.run()
|
||
this.resetTrigger()
|
||
}
|
||
}
|
||
|
||
get currentState() {
|
||
return this._currentState
|
||
}
|
||
|
||
set currentState(newState) {
|
||
if (!newState) {
|
||
return
|
||
}
|
||
this._currentState = newState
|
||
this._currentState.run()
|
||
}
|
||
|
||
/***
|
||
* 清空所有trigger
|
||
*/
|
||
resetTrigger() {
|
||
for (const [, value] of this.params) {
|
||
if (value.type === FsmParamTypeEnum.Trigger) {
|
||
value.value = false
|
||
}
|
||
}
|
||
}
|
||
|
||
/***
|
||
* 由子类重写，方法目标是根据当前状态和参数修改currentState
|
||
*/
|
||
abstract init(...args: any[]): void
|
||
abstract run(): void
|
||
}
|