// Seek using Steering mode.
private void Seek(EnemyStateController controller, Vector3 targetpoint)
{
// Check for target dist from arrival radius
Vector3 direction = targetpoint - controller.transform.position;
// Vector3 direction = controller.nav_agent.steeringTarget - controller.transform.position;
float distance = (direction).magnitude;
if (distance < controller.enemy_stats.arrival_radius)
{
controller.current_vel = Vector3.zero;
controller.current_accel = Vector3.zero;
return;
}
//Set accel
controller.current_accel += direction.normalized * (controller.enemy_stats.maximum_acceleration) * Time.deltaTime;
//cap accel
if (controller.current_accel.magnitude > controller.enemy_stats.maximum_acceleration)
{
controller.current_accel.Normalize();
controller.current_accel *= controller.enemy_stats.maximum_acceleration;
}
controller.current_vel += (controller.current_accel * Time.deltaTime);
//cap vel
if (controller.current_vel.magnitude > controller.enemy_stats.maximum_velocity)
{
controller.current_vel.Normalize();
controller.current_vel *= controller.enemy_stats.maximum_velocity;
}
Vector3 newpos = controller.transform.position + (controller.current_vel * Time.deltaTime);
controller.transform.position = newpos;
}
private void DoActions(EnemyStateController controller)
{
for (int i = 0; i < actions.Length; i++)
{
actions[i].Act(controller);
}
}
private EnemyState CheckTransitions(EnemyStateController enemy)
{
// Find player.
PlayerController player = (PlayerController)enemy.GetData <PlayerController>(StateData.Player); //GameObject.FindGameObjectWithTag(Tags.Player).GetRequiredComponent<PlayerController>();
for (int transitionIndex = 0; transitionIndex < m_Transitions.Length; transitionIndex++)
{
EnemyState nextState;
if (m_Transitions[transitionIndex].CheckTransition(enemy, player))
{
nextState = m_Transitions[transitionIndex].GetTrueState;
}
else
{
nextState = m_Transitions[transitionIndex].GetFalseState;
}
if (nextState != null)
{
return(nextState);
}
}
return(null);
}
public override void StateEnter()
{
detectCollider = enemy.transform.Find("DetectCollider").GetComponent <Collider2D>();
stateController = enemy.GetComponent <EnemyStateController>();
// Debug.Log("Looking for the enemy");
lastTurn = stateController.timePatrolling;
}
private void SetupAI()
{
//get enemy state controller
stateController = GetComponent <EnemyStateController>();
//SetFlyHeightFromGround(flyHeight);
aiActive = true;
stateController.SetupStateController(this);
rb.constraints = RigidbodyConstraints.FreezeRotation;
//so darkling know where to return
this.startTransform = new SaveTransform(this.transform);
//assign type for darkling
switch (darklingType)
{
case DarklingType.Idle:
stateController.currentState = darklingIdleStartState;
break;
case DarklingType.Wander:
stateController.currentState = darklingWanderStartState;
break;
//if not assign, leave it there
default:
break;
}
}
// Initialization function for a state
public void InitState(EnemyStateController controller)
{
for (int i = 0; i < actions.Length; i++)
{
actions[i].Init(controller);
}
}
public override bool Decide(EnemyStateController controller)
{
DarklingAirEnemy darkling = (DarklingAirEnemy)controller.enemy;
bool isTargetInZone = detectTarget(darkling);
return(isTargetInZone);
}
void Start()
{
audioSource = GetComponent <AudioSource>();
stateController = transform.parent.GetComponent <EnemyStateController>();
detectCollider = GetComponent <Collider2D>();
enemyCollider = transform.parent.GetComponent <Collider2D>();
Physics2D.IgnoreCollision(detectCollider, enemyCollider, true);
}
public override void StateEnter()
{
stateController = enemy.GetComponent <EnemyStateController>();
bullet = stateController.bullet;
player = stateController.detectedPlayer;
lastAttack = stateController.reactionTime;
Debug.Log("Got you, ya son of a bitch!");
}
public override bool Decide(EnemyStateController controller)
{
SkeletonEnemy skeleton = (SkeletonEnemy)controller.enemy;
bool targetDetected = Scan(skeleton);
return(targetDetected);
}
public override void Act(EnemyStateController controller)
{
//simple cast
SkeletonEnemy skeleton = (SkeletonEnemy)controller.enemy;
//move
Attack(skeleton);
}
private void DoActions(EnemyStateController controller)
{
// Loop through all actions associated with this state.
for (int i = 0; i < actions.Length; i++)
{
// Do actions.
actions[i].Act(controller);
}
}
private void moveToStartPosition(EnemyStateController controller)
{
Vector3 targetLocation = controller.StartLocation;
Vector3 newPosition = controller.transform.position;
Vector3 dir = (targetLocation - newPosition).normalized;
controller.transform.position = newPosition + dir * controller.Stats.MoveSpeed * Time.fixedDeltaTime;
controller.transform.up = dir;
}
/*
* called by EnemyStateController, when transition to new state
*/
public void OnExitState(EnemyStateController controller)
{
if (exitAction == null)
{
return;
}
exitAction.Act(controller);
}
private bool Scan(EnemyStateController controller)
{
// Vector3 tempScanPos = new Vector3(Random.Range(-1f, 1f), Random.Range(-1f, 1f), Random.Range(-1f, 1f));
controller.agent.isStopped = true;
// controller.transform.Translate(controller.transform.position + tempScanPos * controller.enemyStats.moveSpeed * Time.deltaTime);
return(controller.CheckIfTimeElapsed(controller.enemyStats.searchDuration));
}
private void MoveTowardsPlayer(EnemyStateController controller)
{
Vector3 newPosition = controller.transform.position;
Vector3 dir = (controller.HeroTransform.position - newPosition).normalized;
newPosition = newPosition + (dir * controller.Stats.MoveSpeed * Time.fixedDeltaTime);
controller.transform.position = newPosition;
controller.transform.up = dir;
}
// Start is called before the first frame update
void Start()
{
gettingSucked = false;
Vector3 suckInfo = lookup.ContainsKey(enemyType) ? lookup[enemyType] : lookup["default"];
suckRate = suckInfo.x;
suckLeft = suckInfo.y;
suckDamage = suckInfo.z;
state = gameObject.GetComponent <EnemyStateController>();
}
private void Patrol(EnemyStateController controller)
{
// controller.enemyAnim.SetTrigger("Walk");
controller.agent.destination = controller.wayPointsList[controller.nextWayPoint].position;
controller.agent.isStopped = false;
if (controller.agent.remainingDistance <= controller.agent.stoppingDistance && !controller.agent.pathPending)
{
controller.nextWayPoint = (controller.nextWayPoint + 1) % controller.wayPointsList.Count;
}
}
private bool closeToLocation(EnemyStateController controller)
{
Vector3 myPosition = controller.transform.position;
Vector3 distance = controller.StartLocation - myPosition;
if (distance.magnitude <= .5f)
{
return(true);
}
return(false);
}
public override bool Decide(EnemyStateController controller)
{
DarklingAirEnemy darkling = (DarklingAirEnemy)controller.enemy;
if (darkling.isCloseEnoughToTarget(darkling.startTransform.position, 1))
{
return(true);
}
return(false);
}
public override bool Decide(EnemyStateController controller)
{
SkeletonEnemy skeleton = (SkeletonEnemy)controller.enemy;
if (skeleton.isCloseEnoughToTarget(skeleton.startTransform.position, 1))
{
return(true);
}
return(false);
}
public void UpdateState(EnemyStateController enemy, EnemyStateController.StateCallback stateCallback)
{
UpdateStateLogic(enemy);
// Check whether the state can transition to the next state.
EnemyState nextState = CheckTransitions(enemy);
if ((stateCallback != null) && (nextState != null))
{
stateCallback(nextState);
}
}
private void Patrol(EnemyStateController controller)
{
controller.NavAgent.Resume();
if (controller.NavAgent.path.reachedDestination)
{
controller.NavAgent.waypointIndex = (controller.NavAgent.waypointIndex + 1) % controller.NavAgent.waypoints.waypoints.Count;
controller.NavAgent.NextWaypoint();
}
controller.SetWaypointLocation();
}
private void Suck(EnemyStateController controller)
{
bool playerLooking = controller.IsSeen();
if (playerLooking)
{
Vector3 newPos = controller.HeroTransform.position;
Vector3 dir = controller.transform.position - newPos;
controller.Hero.GetComponent <Rigidbody2D>().AddForce(dir.normalized * 375f, ForceMode2D.Force);
}
}
protected override void UpdateStateLogic(EnemyStateController enemy)
{
PlayerController player = (PlayerController)enemy.GetData <PlayerController>(StateData.Player);
// Move towards the next player position.
enemy.GetNavMeshAgent.destination = player.gameObject.transform.position;
enemy.GetNavMeshAgent.isStopped = false;
if (enemy.GetEnemyController.GetAnimator.IsAnimating == false)
{
enemy.GetEnemyController.GetAnimator.WalkForward();
}
}
public override bool Decide(EnemyStateController controller)
{
DarklingAirEnemy darkling = (DarklingAirEnemy)controller.enemy;
bool attackAgain = false;
if (darkling.target != null && darkling.hasDoneAttacking)
{
attackAgain = true;
}
return(attackAgain);
}
public override void Act(EnemyStateController controller)
{
SkeletonEnemy skeleton = (SkeletonEnemy)controller.enemy;
//simple check
if (skeleton.patrolPositions.Length == 0)
{
return;
}
//move
Patrol(skeleton);
}
public override void Act(EnemyStateController controller)
{
// Debug.Log("CHASE STATE");
// Chase the player
Vector2 chaseVector = Vector2.MoveTowards(
controller.transform.position,
controller.enemyMovementController.chaseTarget.position,
Time.deltaTime * 5.0f);
controller.transform.position = new Vector3(
chaseVector.x,
controller.transform.position.y,
controller.transform.position.z);
}
private GameObject IsEnemyNearPlayer(EnemyStateController enemy)
{
// Get a list of colliders within the given radius of the enemy.
Collider[] colliderList = Physics.OverlapSphere(enemy.GetEnemyController.transform.position, m_DistanceFromPlayer, Layers.GetLayerMask(Layers.Player));
// In theory, the player should be the only thing on the player layer, so if the list is greater than 0, the player is within that radius.
if (colliderList.Length > 0)
{
return(colliderList[0].gameObject);
}
else
{
return(null);
}
}
public bool CheckTransition(EnemyStateController enemy, PlayerController player)
{
// For this transition to return true, all the decisions in the list must return true (&& relationship).
for (int decisionIndex = 0; decisionIndex < m_Decisions.Length; decisionIndex++)
{
if (m_Decisions[decisionIndex].Decide(enemy, player) == false)
{
// Decision failed, transition can not be transitioned.
return(false);
}
}
// All the decisions were successful! Transition is a-go!
return(true);
}
