private float attackCounter; // Counter to count when the next attack comes
void Awake()
{
behaviours = new List <GenericAIBehaviour> ();
anim = GetComponent <Animator> ();
agent = GetComponent <UnityEngine.AI.NavMeshAgent> ();
stats = GetComponent <GeneralStats> ();
currentCommand = stats.GetAIStats.GetCommand;
speedFloat = Animator.StringToHash("Speed");
attackTrigger = Animator.StringToHash("Attack");
}
void Update()
{
foreach (var activeBehaviour in behaviours)
{
if (activeBehaviour.GetBehaviourCode() == currentBehaviour)
{
// Pass the AIStats to the active, current behaviour
currentCommand = activeBehaviour.SetCommand(stats);
// call LocalUpdate for the active, current behaviour
activeBehaviour.LocalUpdate();
// Set the AITag to the active, current behaviour
currentTag = activeBehaviour.localTag;
}
}
PerformCommand(currentCommand, currentAttkTarget, currentMoveDest);
}
// ------------------------------------------------------------------------------------------
// AI commands are low level commands that the BasicAIBehaviour can translate to animation
// The basic AI behaviour will call this every update
// Other behaviours must modify AIStats.Command based on their behaviour and attack + move dest
// ------------------------------------------------------------------------------------------
void PerformCommand(AIStats.Command command, GameObject attackingTarget, Vector3 moveDest)
{
// To use command Run and Sprint, set moveDestination to the position.
if (currentCommand == AIStats.Command.SprintingToDest)
{
agent.destination = moveDest;
anim.SetFloat(speedFloat, stats.GetCharacterStats.GetSprintingSpeed);
}
if (currentCommand == AIStats.Command.RunningToDest)
{
agent.destination = moveDest;
anim.SetFloat(speedFloat, stats.GetCharacterStats.GetRunningSpeed);
}
if (stats.GetAIStats.GetCommand == AIStats.Command.WalkingToDest)
{
agent.destination = moveDest;
anim.SetFloat(speedFloat, stats.GetCharacterStats.GetWalkingSpeed);
}
// Idle command sits the AI in place.
if (stats.GetAIStats.GetCommand == AIStats.Command.Idle)
{
agent.destination = moveDest;
anim.SetFloat(speedFloat, 0.0f);
}
// To use command AttackingDest, set attackingTarget to the target.
// The AttackAIBehaviour will take care of extra work such as laserLine and animation functions
if (currentCommand == AIStats.Command.AttackingDest)
{
if (attackingTarget == null)
{
Debug.Log("Target for attack is null");
return;
}
// When attacking, run faster than normal
if (agent.remainingDistance <= stats.GetPrimaryWStats.GetRange)
{
anim.SetFloat(speedFloat, 0f);
}
else
{
anim.SetFloat(speedFloat, stats.GetCharacterStats.GetAttackMoveSpeed);
}
if (attackCounter > stats.GetPrimaryWStats.GetAttackDelay && (agent.remainingDistance <= stats.GetPrimaryWStats.GetRange))
{
anim.SetTrigger(attackTrigger);
attackCounter = 0f;
}
// Turn the AI ourselves using transform.RotateTowards or LookAt
agent.angularSpeed = 0.0f;
transform.LookAt(new Vector3(attackingTarget.transform.position.x, transform.position.y, attackingTarget.transform.position.z));
Quaternion direction = Quaternion.LookRotation(attackingTarget.transform.position - transform.position);
transform.rotation = Quaternion.RotateTowards(transform.rotation, direction, stats.GetAIStats.GetAimspeed);
moveDest = attackingTarget.transform.position;
}
else
{
agent.angularSpeed = stats.GetAIStats.GetTurnspeed;
}
// Attack cooldown ticks regardless of action
attackCounter += Time.deltaTime;
}
