// Use this for initialization
protected override void Start()
{
rb = GetComponent <Rigidbody2D>();
Behaviours = new States();
Behaviours = States.patrolling;
//areaOfMovement = Random.insideUnitCircle * 2 + Enemy;
}
// Use this for initialization
protected override void Start()
{
ai1 = gameObject.AddComponent <AI>();
behaviours = new States();
behaviours = States.patrolling;
constantYPos = transform.position.y;
ai1.t = transform;
}
// Update is called once per frame
protected override void Update()
{
/*switch (state)
* {
* case AI_STATE.STATE_IDLE:
*
* /// do idle state stuff
* /// // IdleState();
* break;
*
* case AI_STATE.STATE_ATTACK:
*
* //AttackState();
* break;
*
* // etc
* }
*/
//Setting raycast1 so the enemy can detect the player
/*ai1.DetectingPlayer(pointEnd.position,transform.right, player, sightRange, AttackRange, behaviours);
* Debug.DrawRay(transform.position, transform.right, Color.red);
*/
//To detect player
RaycastHit2D hit = Physics2D.Raycast(RaycastPoint.position, transform.right, sightRange);
Debug.DrawLine(RaycastPoint.position, hit.point, Color.red);
//Edge detection raycast
RaycastHit2D groundDetect = Physics2D.Raycast(pointEnd.position, Vector2.down);
Debug.DrawLine(pointEnd.position, groundDetect.point, Color.blue);
// hit object for edge detection stored in transform variable
Transform Object = groundDetect.transform;
// hit object for player detection stored in transform variable
Transform DetectedObject = hit.transform;
transform.position = new Vector3(transform.position.x, constantYPos, 0);
//behaviours = ai1.DetectingPlayer(RaycastPoint.position, transform.right, sightRange, AttackRange, foundPlayer);
//Note: Maximum sight range may be at 5 since 10 may have case problems
switch (behaviours)
{
//The AI will move to the right and have it material colour set to green
case States.patrolling:
transform.Translate(Vector2.right * speed * Time.deltaTime);
materal.GetComponent <Renderer>().material.color = Color.green;
break;
//When the enemy spots the player it will follow the player and change it's material colour to yellow
//Also the enemy will rotate 180s depending on its position
case States.moving:
materal.GetComponent <Renderer>().material.color = Color.yellow;
transform.position = Vector2.Lerp(transform.position, player.position, Time.deltaTime);
//Use rotate method in AI class
if (transform.position.x < lastPos.x)
{
lastPos.x = transform.position.x + 0.01f;
transform.eulerAngles = new Vector3(0, 180, 0);
}
else if (transform.position.x > lastPos.x)
{
lastPos.x = transform.position.x - 0.01f;
transform.eulerAngles = new Vector3(0, 0, 0);
}
break;
//when the enemy is attacking its material colour will change to red
//and it will access the health variable in the playermovement script
case States.attacking:
materal.GetComponent <Renderer>().material.color = Color.red;
healthbar = hit.transform.GetComponent <PlayerMoverment1>();
//The player's health will reduced every three seconds
if (Time.time > attackDelay)
{
attackDelay = Time.time + 3;
healthbar.health -= 100;
}
break;
}
//Turning left if the enemy is moving right
if (transform.eulerAngles.y == 0 && canTurn == true)
{
transform.eulerAngles = new Vector3(0, 180, 0);
canTurn = false;
}
//Turning right if the enemy is moving left
if (transform.eulerAngles.y == 180 && canTurn == true)
{
transform.eulerAngles = new Vector3(0, 0, 0);
canTurn = false;
}
//If the enemy loses sight of the player then it will go back to patrolling
if (foundPlayer == false)
{
behaviours = States.patrolling;
}
//The if statement will see if the detected Object exists
if (DetectedObject != null)
{
//Debug.Log(DetectedObject.name);
//The if statement below will see if the detected object has the Player tag
if (DetectedObject.CompareTag("Player"))
{
//Debug.Log("Found Player");
behaviours = States.moving;
foundPlayer = true;
if (Vector2.Distance(DetectedObject.position, transform.position) < AttackRange)
{
behaviours = States.attacking;
}
//If the player is invisible then the enem's state will be patrolling
if (DetectedObject.GetComponent <Stealth>().isInvisible == true)
{
behaviours = States.patrolling;
}
}
else
{
foundPlayer = false;
}
/*if (DetectedObject.name == "Tilemap")
* {
* canTurn = true;
* }
*/
}
if (groundDetect.collider != null)
{
if (groundDetect.distance > 2)
{
//The enemy will scan for the edge of the platform once every second
if (Time.time > nextScan)
{
nextScan = Time.time + 0.2f;
canTurn = true;
}
//If the enemy has found the player but is on or moving to another platofrm
//then the enemy will go back to patrolling
if (foundPlayer == true)
{
behaviours = States.patrolling;
}
}
}
}
// Update is called once per frame
protected override void Update()
{
Player = player.position;
Enemy = transform.position;
direction = Player - Enemy;
hit = Physics2D.Raycast(Enemy, direction);
Debug.DrawLine(Enemy, Player, Color.red);
//Ain bow at player
Bow.rotation = Quaternion.Slerp(Bow.rotation, angle, Time.deltaTime * rotateSpeed);
switch (Behaviours)
{
case States.patrolling:
//Telling the enemy where to move to at a speed of 4
transform.position = Vector3.MoveTowards(Enemy, newPos, Time.deltaTime);
DestLength = Vector2.Distance(Enemy, newPos);
//In the if statement the enemy will find one position to move to if it hasn't alread found one
if (noDestination == true)
{
//Setting boundaries for where the enemy can go within a sphere with a radius of 2
newPos = Random.insideUnitCircle * 5 + Enemy;
noDestination = false;
}
//find another position to move to once it's at the previous selected position
if (Vector3.Distance(newPos, Enemy) < 0.1f)
{
noDestination = true;
}
/*if (transform.position.y < player.position.y)
* {
* noDestination = true;
* }
*/
//Resets the bow to original rotation
angle = Quaternion.Euler(0, 0, 0);
//switch between left and right sprite when play moves left or right
if (transform.position.x > lastPos.x)
{
lastPos.x = transform.position.x + 0.01f;
//transform.eulerAngles = new Vector3(0, 180, 0);
}
else if (transform.position.x < lastPos.x)
{
lastPos.x = transform.position.x - 0.1f;
//transform.eulerAngles = new Vector3(0, 0, 0);
}
break;
case States.attacking:
//Calculates an angle for the enemy's bow to rotate to
angle = Quaternion.Euler(0, 0, Mathf.Atan2(direction.normalized.y, direction.normalized.x) * Mathf.Rad2Deg);
//Arrows will be fired depending on the fire rate
if (Time.time > FireNext)
{
FireNext = Time.time + fireArrowsDelay;
//The created object is stored into a object variable called arrow
GameObject arrow = Instantiate(arrows, FirePoint.position, Quaternion.identity);
//If the arrow gameobject exists it will apply force in the direction of the firepoint object
if (arrow != null)
{
arrow.GetComponent <Rigidbody2D>().AddForce(FirePoint.right * 5, ForceMode2D.Impulse);
}
}
//Switch between left and right sprite depending on the angle of the bow
if (Bow.eulerAngles.z > 270)
{
transform.eulerAngles = new Vector3(0, 180, 0);
}
else if (Bow.eulerAngles.z < 270)
{
transform.eulerAngles = new Vector3(0, 0, 0);
}
break;
}
//The transform of the object that was hit is stored in the transform variable object
Transform Object = hit.transform;
if (Object != null)
{
//When finding the player the enemy will attack else the enemy will continue to patrol
if (Object.CompareTag("Player"))
{
Behaviours = States.attacking;
//If the enemy is invisiable the enemy will patrol
if (Object.GetComponent <Stealth>().isInvisible == true)
{
Behaviours = States.patrolling;
}
}
else
{
Behaviours = States.patrolling;
}
}
}