void RandomMove()
{
//Let's go.... THIS WAY
currentDirection = Random.Range(0, 360);
currentVelocity = speed;
AIController = AIStart;
}
void AlliesClose()
{
bool allyNear = false;
GameObject[] enemyList = GameObject.FindGameObjectsWithTag("Enemy");
foreach (GameObject g in enemyList)
{
if (g != gameObject)
{
float allyDist = Vector3.Distance(g.gameObject.transform.position, gameObject.transform.position);
if (allyDist < friendlyRange)
{
allyNear = true;
}
}
}
//Yes, Attack
if (allyNear)
{
AIController = Attack;
}
//No, is HP low?
else
{
AIController = HPLow;
}
}
void MoveToSpawn()
{
//E.T. Goooooo Hooooooome
rot = Mathf.Atan2((spawn.y - rb2d.transform.position.y), (spawn.x - transform.position.x)) * Mathf.Rad2Deg - 90;
currentDirection = rot;
currentVelocity = speed;
AIController = AIStart;
}
void Retreat()
{
//RUN AWAAAAAAAAAAAAAAAAAAY
if (player != null)
{
rot = Mathf.Atan2((player.transform.position.y - transform.position.y), (player.transform.position.x - transform.position.x)) * Mathf.Rad2Deg + 90;
}
currentDirection = rot;
currentVelocity = speed;
AIController = AIStart;
}
void Attack()
{
//CHAAAAAAAAAAAAAAAARGE
if (player != null)
{
rot = Mathf.Atan2((player.transform.position.y - transform.position.y), (player.transform.position.x - transform.position.x)) * Mathf.Rad2Deg - 90;
}
currentDirection = rot;
currentVelocity = speed;
AIController = AIStart;
}
void HPLow()
{
//Yes, Run away
if (hp <= HPThreshold)
{
AIController = Retreat;
}
//No, Attack
else
{
AIController = Attack;
}
}
void RandomIdle()
{
//Move in a random direction
if (Random.value >= 0.5f)
{
AIController = RandomMove;
}
//Or Sit still
else
{
AIController = Idle;
}
}
void FarFromSpawn()
{
//Yes, move to Spawn
if (spawnDist > spawnTetherRange)
{
AIController = MoveToSpawn;
}
//No? Random Idle
else
{
AIController = RandomIdle;
}
}
void PlayerInAggroRange()
{
//Yes, Check if Allies are near
if (playerDist < aggroRange)
{
AIController = AlliesClose;
}
//No, is HP low?
else
{
AIController = HPLow;
}
}
void PlayerInThreatZone()
{
//Yes, check if in Aggro range
if (playerDist < threatRange)
{
AIController = PlayerInAggroRange;
}
//No, Check if too Far from spawn
else
{
AIController = FarFromSpawn;
}
}
void Start()
{
rb2d = gameObject.GetComponent <Rigidbody2D>();
anim = GetComponent <Animator>();
spawn = gameObject.transform.position;
AIController = PlayerInThreatZone;
InvokeRepeating("Tick", 0, 0.1f);
if (GameObject.FindGameObjectWithTag("Player") == null)
{
player = gameObject.transform;
}
else
{
player = GameObject.FindGameObjectWithTag("Player").transform;
playerDist = Vector3.Distance(gameObject.transform.position, player.transform.position);
}
spawnDist = Vector3.Distance(gameObject.transform.position, spawn);
}
void Idle()
{
//Zzzzzz
currentVelocity = 0;
AIController = AIStart;
}
void AIStart()
{
//Start of our descision Tree
AIController = PlayerInThreatZone;
}
