private void FixedUpdate()
{
_src.Accelerate(_bufferedMovementDirection);
}
public void Update()
{
if (_targetLizard != null)
{
_facing = (_targetLizard.transform.position - _src.transform.position).normalized;
_facing.y = _src.transform.position.y;
_src.Orientate(_facing);
}
else
{
_src.Orientate(Vector3.forward);
}
//If the target it outside the chase radius then the timer will increase
if (_targetDistance > chaseRadius)
{
_searchTimer += Time.deltaTime;
}
if (_targetLizard == null)
{
_currentState = State.CHOOSETARGET;
}
//State machine for the AI
switch (_currentState)
{
case State.IDLE:
_src.Stop();
_targetLizard = FindRandomLizard();
if (_targetLizard != null)
{
_currentState = State.MOVINGTOTARGET;
}
break;
//Moving towards the AI target
case State.MOVINGTOTARGET:
Vector3 direction = (_targetLizard.transform.position - this.transform.position).normalized;
_src.Accelerate(direction);
//If the timer exceeds 4 seconds the AI will change target
if (_searchTimer > 4.0f)
{
_currentState = State.CHOOSETARGET;
}
//When a lizard passes by close enough 60% of the time it will become the new target
foreach (Lizard currentLizard in _gameManager.completeList)
{
if (_src != currentLizard && currentLizard != _targetLizard)
{
if (Vector3.Distance(this.transform.position, currentLizard.transform.position) < chaseRadius * 0.5f)
{
int randomNumber = Random.Range(1, 10);
if (randomNumber <= 4)
{
_targetLizard = currentLizard;
_searchTimer = 0.0f;
}
}
}
}
_targetDistance = Vector3.Distance(this.transform.position, _targetLizard.transform.position);
if (_targetDistance < attackRange)
{
if (Time.time > _attackTime + attackPause)
{
_currentState = State.ATTACKING;
}
}
break;
//Choosing a random target for the AI
case State.CHOOSETARGET:
_targetLizard = FindRandomLizard();
_searchTimer = 0.0f;
if (_targetLizard == null)
{
_currentState = State.IDLE;
}
else
{
_currentState = State.MOVINGTOTARGET;
}
break;
case State.ATTACKING:
_attackTime = Time.time;
_targetLizard.Knockback(_facing, _targetedKnockbackData);
_currentState = State.WANDER;
wanderPoint = Random.insideUnitSphere + _gameManager.circleCentre.position;
wanderPoint.y = 0;
_wanderTime = Time.time;
break;
case State.WANDER:
Vector3 wanderDirection = (wanderPoint - this.transform.position).normalized;
_src.Accelerate(wanderDirection);
_facing = wanderDirection;
_src.Orientate(_facing);
if (Time.time > _wanderTime + wanderDuration || Vector3.Distance(this.transform.position, wanderPoint) < 0.25)
{
_currentState = State.CHOOSETARGET;
}
break;
default:
break;
}
}
