// Use this for initialization
void Start()
{
player = GameObject.FindGameObjectWithTag("Player");
anim = GetComponent <Animator>();
agent = GetComponent <NavMeshAgent>();
state = CHIMERA_STATE.WALKING;
healthManager = GameObject.FindGameObjectWithTag("GUI_Controller");
chimeraCurrentHealth = GetComponent <EnemyHealth>().enemyHealth;
/*
* This level has multiple AI dinosaurs helping the player and so I add them all to a list so I can later
* calculate the distance to each one.
*/
foreach (GameObject dino in GameObject.FindGameObjectsWithTag("buddy"))
{
dinosaurs.Add(dino);
}
}
// Update is called once per frame
void Update()
{
/*
* If health falls below 0, then the enemy is dead
*/
if (chimeraCurrentHealth <= 0)
{
state = CHIMERA_STATE.DEAD;
}
/*
* This is the distance to the player
*/
distanceToPlayer = Vector3.Distance(transform.position, player.transform.position);
/*
* This calculates the distance to each dinosaur AI helping the player
*/
foreach (GameObject buddy in dinosaurs)
{
if (buddy != null)
{
distanceToBuddy = Vector3.Distance(transform.position, buddy.transform.position);
}
}
switch (state)
{
/*
* If the enemy is close enough to the player or a dinosaur, it changes its state and attacks
*/
case CHIMERA_STATE.WALKING:
agent.SetDestination(player.transform.position);
if (distanceToPlayer <= 4 || distanceToBuddy <= 4)
{
state = CHIMERA_STATE.ATTACKING;
}
break;
case CHIMERA_STATE.ATTACKING:
/*
* If the enemy is in range of the player, it attacks the player
*/
if (distanceToPlayer <= 4)
{
anim.SetTrigger("Attack");
healthManager.SendMessage("PlayerTakeDamage", damage, SendMessageOptions.DontRequireReceiver);
}
/*
* Here I iterate through all the dinosaurs and see if the enemy is in range to attack. If the enemy IS in
* range, I tell him to look at his target and attack, however I tell it to keep moving towards its initial
* destination, which is the players position. This is intentional as I wanted it to be different from other
* AI in the game. This enemy stalks the player relentlessly dynamically changing its path to get to the
* player
*/
foreach (GameObject buddy in dinosaurs)
{
if (buddy != null)
{
if (Vector3.Distance(transform.position, buddy.transform.position) <= 4)
{
if (buddy != null)
{
anim.SetTrigger("Attack");
transform.LookAt(buddy.transform.position);
healthManager.SendMessage("BuddyTakeDamage", damage, SendMessageOptions.DontRequireReceiver);
}
}
else
{
state = CHIMERA_STATE.WALKING;
}
}
}
/*
* If the enemy isnt near the player, it continues walking instead of attacking
*/
if (distanceToPlayer >= 4)
{
state = CHIMERA_STATE.WALKING;
}
break;
/*
* If the enemy dies, I play the death animation, and then call the Die() function
*/
case CHIMERA_STATE.DEAD:
anim.SetTrigger("Die");
StartCoroutine("Die");
break;
}
}
