public void DoTransition(Transition trans)//transit state
{
if (trans == Transition.NullTransition)
{
Debug.LogError("empty transition");
return;
}
StateID id = currentState.GetOutPutState(trans);
if (id == StateID.NullStateID)
{
Debug.LogWarning("Unable to perform transition");
return;
}
if (states.ContainsKey(id) == false)
{
Debug.LogError("Cannot find this state");
return;
}
FSMstate state = states[id];
currentState.DoAfterLeave();
currentState = state;
currentID = id;
currentState.DoBeforeEnter();
}
//通过接受过渡状态来改变当前状态
public void PerformTransition(Transition Trans)
{
//该状态未空则打印错误信息并且返回
if (Trans == Transition.NullTransition)
{
Debug.LogError("FSM ERROR: NullTransition is not allowed for a real transition");
return;
}
//得到当前状态通过过渡状态改变后的状态
StateID id = currentState.GetState(Trans);
//若该状态未空则返回
if (id == StateID.NullStateID)
{
Debug.LogError("FSM ERROR: State " + currentStateID.ToString() + " does not have a target state " +
" for transition " + Trans.ToString());
return;
}
//更新当前状态
currentStateID = id;
foreach (FSMstate state in states)
{
if (state.ID == currentStateID)
{
currentState.DoBeforeLeaving(ai, po);
currentState = state;
currentState.DoBeforeEntering();
break;
}
}
}
//为有限状态机置入新的状态
public void AddState(FSMstate s)
{
//在添加前检测是否为空
if (s == null)
{
Debug.LogError("FSM ERROR: Null reference is not allowed");
}
//添加第一个状态
if (states.Count == 0)
{
states.Add(s);
currentState = s;
currentStateID = s.ID;
return;
}
//若状态未被添加过则添加进集合
foreach (FSMstate state in states)
{
if (state.ID == s.ID)
{
Debug.LogError("FSM ERROR: Impossible to add state " +
s.ID.ToString() + " because state has already been added");
return;
}
states.Add(s);
}
}
private void StatePatrol()
{
m_ani.SetBool("idle", true);
m_ani.SetBool("attack", false);
m_ani.SetBool("death", false);
m_ani.SetBool("run", false);
agent.ResetPath();
if (Enemy_trigger.is_trigger == true)
{
curState = FSMstate.Chase;
}
}
void StatePatrol()
{
inputEnabled = true;
Dup = 1;
Dright = 0;
UpdateDmagDvec(Dup, Dright);
Enemy_Waypoint();
if (Enemy_trigger.is_trigger == true)
{
curState = FSMstate.Chase;
checkWp = false;
}
}
void StateAttack()
{
inputEnabled = false;
Dup = 0;
Dright = 0;
UpdateDmagDvec(Dup, Dright);
transform.LookAt(player.position);
attack = true;
if (Vector3.Distance(this.transform.position, player.position) >= 4)
{
curState = FSMstate.Chase;
attack = false;
}
}
private void StateAttack()
{
AnimatorStateInfo stateInfo = m_ani.GetCurrentAnimatorStateInfo(0);
m_ani.SetBool("idle", false);
m_ani.SetBool("attack", true);
m_ani.SetBool("death", false);
m_ani.SetBool("run", false);
agent.ResetPath();
if (Vector3.Distance(m_transform.position, m_player.transform.position) > 4f)
{
curState = FSMstate.Chase;
}
}
private void StateChase()
{
m_ani.SetBool("idle", false);
m_ani.SetBool("attack", false);
m_ani.SetBool("death", false);
m_ani.SetBool("run", true);
agent.SetDestination(m_player.transform.position);
if (Vector3.Distance(m_transform.position, m_player.transform.position) < 2f)
{
curState = FSMstate.Attack;
}
else if (Vector3.Distance(m_transform.position, m_player.transform.position) > 8f)
{
curState = FSMstate.Patrol;
}
}
void StateChase()
{
inputEnabled = true;
Dup = 2;
Dright = 0;
UpdateDmagDvec(Dup, Dright);
transform.LookAt(player.position);
agent.SetDestination(player.position);
if (Vector3.Distance(this.transform.position, player.position) <= 2)
{
curState = FSMstate.Attack;
}
if (Vector3.Distance(this.transform.position, player.position) >= 6)
{
curState = FSMstate.Patrol;
checkWp = true;
}
}
public MovementLayer()
{
Refresh = false;
//////////////Movement Layer/////////////////////
//idle
_state[0] = new FSMstate((int)STATE.idle, 4);
_state[0].AddTransition((int)INPUT.command_idle, (int)STATE.idle);
_state[0].AddTransition((int)INPUT.command_move, (int)STATE.move);
_state[0].AddTransition((int)INPUT.command_attack, (int)STATE.attack);
_state[0].AddTransition((int)INPUT.command_die, (int)STATE.die);
//move
_state[1] = new FSMstate((int)STATE.move, 4);
_state[1].AddTransition((int)INPUT.command_idle, (int)STATE.idle);
_state[1].AddTransition((int)INPUT.command_attack, (int)STATE.attack);
_state[1].AddTransition((int)INPUT.complete_arrival, (int)STATE.idle);
_state[1].AddTransition((int)INPUT.command_die, (int)STATE.die);
//attack
_state[2] = new FSMstate((int)STATE.attack, 4);
_state[1].AddTransition((int)INPUT.command_idle, (int)STATE.idle);
_state[2].AddTransition((int)INPUT.command_move, (int)STATE.move);
_state[2].AddTransition((int)INPUT.complete_arrival, (int)STATE.idle);
_state[2].AddTransition((int)INPUT.command_die, (int)STATE.die);
//die
_state[3] = new FSMstate((int)STATE.die, 1);
_state[3].AddTransition((int)INPUT.complete_die, (int)STATE.revive);
//revive
_state[4] = new FSMstate((int)STATE.revive, 1);
_state[4].AddTransition((int)INPUT.complete_revive, (int)STATE.idle);
_fsm = new FSMclass((int)STATE.idle);
_fsm.AddState(_state[0]);
_fsm.AddState(_state[1]);
_fsm.AddState(_state[2]);
_fsm.AddState(_state[3]);
_fsm.AddState(_state[4]);
//idle init
//_CurrentState = (STATE)_fsm.StateTransition((int)INPUT.command_idle);
_CurrentState = (STATE)_fsm.GetCurrentState();
}
public void AddState(FSMstate s)
{
if (s == null)
{
Debug.LogError("FSM state is empty");
return;
}
if (currentState == null)
{
currentState = s;
currentID = s.ID;
}
if (states.ContainsKey(s.ID))
{
Debug.LogError("state already exist");
return;
}
states.Add(s.ID, s);
}
void Update()
{
//UpdateDmagDvec(Dup,Dright);
switch (curState)
{
case FSMstate.Patrol:
StatePatrol();
break;
case FSMstate.Chase:
StateChase();
break;
case FSMstate.Attack:
StateAttack();
break;
}
if (stateManager.HP <= 0)
{
inputEnabled = false;
curState = FSMstate.None;
Destroy(this.gameObject, 5.0f);
}
}
void Start()
{
curState = FSMstate.Patrol;
agent = this.GetComponent <NavMeshAgent>();
m_player = GameObject.FindGameObjectWithTag("Player").GetComponent <Player>();
}
void Start()
{
curState = FSMstate.Patrol;
agent = this.GetComponent <NavMeshAgent>();
//Enemy_randomwayPoint();
}
