// Update is called once per frame
void Update()
{
var input = new Vector2(Input.GetAxis("Horizontal"), Input.GetAxis("Vertical"));
Vector2 translation = input * speed * Time.deltaTime;
transform.Translate(translation);
if (Input.GetButtonDown("Fire1"))
{
Vector3 mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
Vector3 direction = (mousePosition - transform.position).normalized;
TestPlayerProjectile projectile = Instantiate(projectilePrefab, transform.position, Quaternion.identity);
projectile.Fire(direction);
}
}
//
// @Summary: Calculates position enemy needs to move to for successfuly dodge
//
public override void Startup()
{
// get potential threats
Collider2D[] potentialThreats = Physics2D.OverlapCircleAll(enemy.transform.position, detectionRange);
Vector3 direction = new Vector3(0f, 0f, 0f);
foreach (var threat in potentialThreats)
{
TestPlayerProjectile projectile = threat.GetComponent <TestPlayerProjectile>();
if (projectile != null)
{
// calculate desired direction to avoid the threat
direction = enemy.transform.position - projectile.transform.position;
direction.z = 0f;
direction.Normalize();
direction = Vector2.Perpendicular(direction);
// flip direction depending on projectile's future position relative to the enemy
Vector3 projFuturePosition = projectile.transform.position + projectile.velocity * Time.deltaTime;
// change y direction
if (direction.y > 0 && projFuturePosition.y > enemy.transform.position.y ||
direction.y < 0 && projFuturePosition.y < enemy.transform.position.y)
{
direction.y = -direction.y;
}
// change x direction
if (direction.x > 0 && projFuturePosition.x > enemy.transform.position.x ||
direction.x < 0 && projFuturePosition.x < enemy.transform.position.x)
{
direction.x = -direction.x;
}
break;
}
}
endPosition = enemy.transform.position + direction * dodgeDistance;
}