using UnityEngine;
using System.Collections;

public class CircularMovement : MonoBehaviour {

    float timeCounter = 0f;
    public float rotationRadius;    //multiplied with sin and cos
    public Vector3 rotationCenter;  //multiplied with position.x and y
    public float rotationSpeed = 1;

    void Awake()
    {
        rotationCenter = transform.parent.position;
    }

	void Update () {
        timeCounter += Time.deltaTime * rotationSpeed;
        //3rd grade highschool math. sin and cos make the object move circularly.
        float x = Mathf.Cos(timeCounter) * rotationRadius;
        float y = Mathf.Sin(timeCounter) * rotationRadius;
        float z = -1;

        transform.position = new Vector3(x + rotationCenter.x, y + rotationCenter.y, z);

	}
}