86 lines
2.2 KiB
C#
86 lines
2.2 KiB
C#
using EasyInject.Attributes;
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using System;
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using System.Collections.Generic;
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using UnityEngine;
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/// <summary>
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/// 程序状态机
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/// </summary>
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[Component]
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public class ApplicationStateMachine
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{
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private List<IProcessState> processStates;
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private static IProcessState currentProcess ;
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private static ApplicationStateMachine stateMachine;
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public event ProcessCompleted ProcessCompletedEvent;
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public delegate void ProcessCompleted();
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public ApplicationStateMachine()
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{
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stateMachine = this;
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}
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private static void SetCurrentProcess(IProcessState current)
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{
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current.IsExecuteProcess = true;
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currentProcess = current;
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int index = stateMachine.processStates.IndexOf(currentProcess);
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try {
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current.OnEnter();
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}catch (Exception ex)
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{
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Debug.LogError(ex.Message);
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}
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//已经是最后流程了，触发完成事件
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if (index == stateMachine.processStates.Count - 1)
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{
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stateMachine.ProcessCompletedEvent?.Invoke();
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}
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}
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/// <summary>
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/// 切换下一个流程，根据流程优先级切换
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/// </summary>
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public static void Chanage(IProcessState currentProcess)
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{
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int index = stateMachine.processStates.IndexOf(currentProcess) + 1;
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if (stateMachine.processStates.Count != index && stateMachine.processStates[index] != null)
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{
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currentProcess.IsExecuteProcess = false;
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currentProcess.OnExit();
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SetCurrentProcess(stateMachine.processStates[index]);
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}
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}
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public void OnInit()
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{
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Debug.Log("初始化状态机");
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processStates = ApplicationBoot.Instance.GetBeans<IProcessState>();
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if (processStates != null && processStates.Count > 0)
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{
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processStates.Sort((a, b) => a.Priority - b.Priority);
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SetCurrentProcess(processStates[0]);
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}
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}
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/// <summary>
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/// 每帧更新状态机
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/// </summary>
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public void OnUpdate()
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{
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if (currentProcess != null)
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{
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try
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{
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currentProcess.OnUpdate();
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}
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catch (Exception ex)
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{
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Debug.LogError(ex.Message);
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}
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}
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}
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}
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