using UnityEngine;
using System.Collections;

public class Plus_Behaviour : MonoBehaviour {

    public GameObject[] pluses;
    public float speed;
    public int pluses_amount;
    int plus_number;
    Vector2 relations;
    float distance;
    public float gravityPower;
    float randomizer;
    int int_randomizer;



    // Use this for initialization
    void Start ()
    {
        pluses = GameObject.FindGameObjectsWithTag("Plus");
        pluses_amount = pluses.Length;
        plus_number = pluses_amount - 1;
    }

	// Update is called once per frame
	void FixedUpdate ()
    {
        randomizer = Random.Range(0, pluses.Length);
        int_randomizer = (int)Mathf.Round(randomizer);

        while (plus_number >= 0)
        {
            Vector2 relations = (pluses[plus_number].GetComponent<Rigidbody2D>().position - pluses[int_randomizer].GetComponent<Rigidbody2D>().position);
            distance = Vector2.Distance(pluses[plus_number].GetComponent<Rigidbody2D>().position, pluses[int_randomizer].GetComponent<Rigidbody2D>().position);
            if (distance == 0) { gravityPower = 0; } else { gravityPower = 1 / Mathf.Pow(distance, 2); }
            pluses[plus_number].GetComponent<Rigidbody2D>().AddForce(relations * -gravityPower * speed, ForceMode2D.Force);
            plus_number--;
        }

        if (plus_number == -1)
        {
            plus_number = pluses_amount - 1;
        }
    }
}