角色状态机

以前写游戏。都是用switch，后来发现状态多了，判断条件变得非常烦杂，最后导致代码的阅读和维护非常困难。

这次重新重整理了思路，用状态机实现。Player类里只存相应的玩家数据，然后PlayerStateControl类来做状态间的逻辑判断（如：前一个状态完成后，接下来要转到哪个状态），然后就是每个状态类了。在每个状态里处理这个状态的输入输出，逻辑运算等等。

import engine.IState;

public class PlayerState implements IState

{

protected var m_player:Player = null;

protected var m_stateType:int = PLAYER_STATE_NORMAL;

public static var PLAYER_STATE_NORMAL = 0x10000; //普通状态

public static var PLAYER_STATE_WAIT:int = (PLAYER_STATE_NORMAL|1); //待机状态

public static var PLAYER_STATE_WALK:int = (PLAYER_STATE_NORMAL|2); //行走状态

public static var PLAYER_STATE_FIGHT = 0x100000; //战斗状态

public static var PLAYER_STATE_WALK_TO_ATTACK_TARGET = (PLAYER_STATE_FIGHT|1); //行走到功击目标的状态

public static var PLAYER_STATE_REQUEST_USE_SKILL = (PLAYER_STATE_FIGHT|2); //请求施法状态

public static var PLAYER_STATE_START_FIRE_SKILL = (PLAYER_STATE_FIGHT|3); //开始施放技能

public static var PLAYER_STATE_FIRE_SKLL_OVER = (PLAYER_STATE_FIGHT|4); //施法结束

public static var PLAYER_STATE_FIGHT_WAIT = (PLAYER_STATE_FIGHT|5); //战斗待机装态

public static var PLAYER_STATE_FIGHT_HITED = (PLAYER_STATE_FIGHT|6); //战斗被击

（还有其它。根据需求来补充）

public function PlayerState(plr:Player)

{

this.m_player = plr;

}

public function GetStateType():int

{

return this.m_stateType;

}

public function OnEnter():void

{

}

public function OnLeave():void

{

}

public function Run():void

{

}

}