// Update is called once per frame
void Update()
{
shotCooldownRemaining -= Time.deltaTime; //Reduce the remaining cooldown time
RaycastHit2D ray = Physics2D.Linecast(new Vector2(transform.position.x, transform.position.y), new Vector2(player.transform.position.x, player.transform.position.y), visionMask);
Vector3 relativePos = GameObject.FindGameObjectWithTag("Player").transform.position - transform.position; //Get the relative position of the player from the enemy
if (ray.collider.gameObject.tag == "Player") //If there is vision to the player
{
if (relativePos.magnitude < maxShotDistance) //If the player is within shooting distance
{
if (shouldLeadShots) //Change the rotation based on whether or not shot leading is on
{
Vector3 shotOffset = new Vector3(player.GetComponent <Rigidbody2D> ().velocity.x *(Mathf.Clamp(relativePos.magnitude, 1f, 50f) / shotSpeedToUseForShotLeading * 1.2f),
player.GetComponent <Rigidbody2D> ().velocity.y *((Mathf.Clamp(relativePos.magnitude, 1f, 50f) / shotSpeedToUseForShotLeading * 1.2f)), 0);
relativePos += shotOffset;
}
//Rotate towards the player
float angle = (Mathf.Atan2(relativePos.y, relativePos.x)) * Mathf.Rad2Deg - 90f;
transform.rotation = Quaternion.RotateTowards(transform.rotation, Quaternion.AngleAxis(angle, Vector3.forward), rotationSpeed * Time.deltaTime);
if (shotCooldownRemaining <= 0) //Checks if the cooldown has been met
//Finds the angle of the player from the enemy, measured from the enemy's nose (it returns a value from -180 to +180, where 0 means the player
//is directly in front of the player.
//float relativeAngle = (Mathf.Atan2 (relativePos.y, relativePos.x)) * Mathf.Rad2Deg;
{
float relativeAngle = Vector2.Angle(transform.up, relativePos);
//Checks the angle is within range an
if (Mathf.Abs(relativeAngle) < maxShotAngle)
{
if (fireFromEmitPos1Next)
{
Instantiate(projectile, ShotEmitPos1.position, transform.rotation);
GameObject barrelEffect = Instantiate(barrelFlashEffect, ShotEmitPos1.position, transform.rotation) as GameObject;
barrelEffect.transform.SetParent(gameObject.transform);
}
else
{
Instantiate(projectile, ShotEmitPos2.position, transform.rotation);
GameObject barrelEffect = Instantiate(barrelFlashEffect, ShotEmitPos2.position, transform.rotation) as GameObject;
barrelEffect.transform.SetParent(gameObject.transform);
}
if (hasTwoEmitPoints) //Swaps gun only if the enemy has two guns to shoot from
{
fireFromEmitPos1Next = !fireFromEmitPos1Next;
}
shotCooldownRemaining = shotCooldown + Random.Range(-shotCooldown * percentageRandomCooldownChange, shotCooldown * percentageRandomCooldownChange); //Reset the cooldown
}
}
}
}
else if (faceMoveDirIfNoSight)
{
EnemyAi myPathfinder = gameObject.GetComponent <EnemyAi> ();
myPathfinder.rotateToPath(rotationSpeed);
}
}