public void parabolicMovement(Vector3 startPosition, Vector3 endPosition, float height, float speed)
{
float x0 = startPosition.x;
float x1 = endPosition.x;
float dist = x1 - x0;
float nextX = Mathf.MoveTowards(transform.position.x, x1, _moveSpeed * Time.deltaTime);
if (Mathf.Approximately(nextX, x1))
{
transform.position = _endPosition;
_currentState = BladerState.Follow;
return;
}
float baseY = Mathf.Lerp(startPosition.y, endPosition.y, (nextX - x0) / dist);
float arc = height * (nextX - x0) * (nextX - x1) / (-0.25f * dist * dist);
Vector3 nextPos = new Vector3(nextX, baseY + arc, startPosition.z);
transform.position = nextPos;
}
private void stateMachine()
{
switch (_currentState)
{
case BladerState.Follow:
{
if (MegamanActor.instance.transform.position.x > transform.position.x && !isMegamanClose())
{
_body.velocity = Vector2.right * _moveSpeed;
}
else if (MegamanActor.instance.transform.position.x < transform.position.x && !isMegamanClose())
{
_body.velocity = Vector2.left * _moveSpeed;
}
else if (isMegamanClose())
{
_body.velocity = Vector2.zero;
_startPosition = transform.position;
_megamanYPosition = MegamanActor.instance.transform.position.y;
float distToMegaman = Mathf.Abs(_startPosition.x - MegamanActor.instance.transform.position.x);
float moveDist = Mathf.Max(2 * distToMegaman, 5f);
if (transform.position.x < MegamanActor.instance.transform.position.x)
{
_endPosition = transform.position + moveDist * Vector3.right;
}
else if (transform.position.x > MegamanActor.instance.transform.position.x)
{
_endPosition = transform.position + moveDist * Vector3.left;
}
_currentState = BladerState.Attack;
}
break;
}
case BladerState.Attack:
{
parabolicMovement(_startPosition, _endPosition, _megamanYPosition - _startPosition.y, _moveSpeed);
break;
}
}
}
