public void TransitionToState(AIEnemyState nextState)
{
if (nextState != remainState)
{
currentState = nextState;
}
}
private void SetState(AIEnemyState aiEnemyState)
{
StopAllCoroutines();
switch (aiEnemyState)
{
case AIEnemyState.IDLE:
StartCoroutine(IdleState());
break;
case AIEnemyState.PATROL:
StartCoroutine(PatrolState());
break;
case AIEnemyState.CHASE:
StartCoroutine(ChaseState());
break;
case AIEnemyState.ATTACK:
StartCoroutine(AttackState());
break;
default:
break;
}
}
private IEnumerator PatrolState()
{
_currentState = AIEnemyState.PATROL;
while (_currentState == AIEnemyState.PATROL)
{
WalkRight();
yield return(_pausePatrol);
_personMover.Stop();
yield return(_pausePatrol);
WalkLeft();
yield return(_pausePatrol);
_personMover.Stop();
yield return(_pausePatrol);
}
}
private IEnumerator AttackState()
{
_currentState = AIEnemyState.ATTACK;
_attackRateTimer = _attackRate;
_personMover.Stop();
while (_currentState == AIEnemyState.ATTACK)
{
if (DistanceToTarget() > _attackRange)
{
SetState(AIEnemyState.IDLE);
}
_attackRateTimer += Time.deltaTime;
if (_attackRateTimer >= _attackRate)
{
_enemyAnimations.Attack();
_attackRateTimer = 0;
}
yield return(null);
}
}
private IEnumerator ChaseState()
{
_currentState = AIEnemyState.CHASE;
while (_currentState == AIEnemyState.CHASE)
{
if (DistanceToTarget() < _chaseMaxDistance)
{
RunToTarget();
}
else
{
SetState(AIEnemyState.IDLE);
}
if (DistanceToTarget() <= _attackRange)
{
SetState(AIEnemyState.ATTACK);
}
yield return(null);
}
}
