Transform[] patrolpoints;
int currentPatrolPoint;

void update() {
	if(transform.position == patrolpoints[currentPatrolPoint].position) {
		currentPatrolPoint++;
	}
	if(currentPatrolPoint > patrolpoints.Length) {
		currentPatrolPoint = 0;
	}

	// the the moving part here accessing the current
	transform.position = Vector2.moveTowards(transform.position, patrolpoints[currentPatrolPoint], speed * Time.deltaTime);
}