using UnityEngine;
using System.Collections;

public class GridManager : MonoBehaviour {

    public GameObject test;
    public RaycastHit2D hit;
    public RaycastHit2D hitForTower;

    //So variables arrays for each tile almost
    public GameObject[] row1;
    public GameObject[] row2;
    public GameObject[] row3;

    public GameObject[] towers;
    public GameObject towerSelected;
    public Game_Manager gm;


    public int row1EnemyCount, row2EnemyCount, row3EnemyCount, overallEnemyCount;

    //assign the collision detection for them
    void Start()
    {
        row1EnemyCount = 0;
        row2EnemyCount = 0;
        row3EnemyCount = 0;
        overallEnemyCount = 0;
        gm = FindObjectOfType<Game_Manager> ();

    }

    //depending which one you click saves the active click?

    void Update()
    {
        if (Input.GetMouseButtonDown (0)) { //Has the mouse clicked?
            hit = Physics2D.Raycast (Camera.main.ScreenToWorldPoint (Input.mousePosition), Vector2.zero);
            hitForTower = Physics2D.Raycast (Camera.main.ScreenToWorldPoint (Input.mousePosition), Vector2.zero, 1 << LayerMask.NameToLayer ("Grid"));
            //Find out what the click was
            Debug.Log (hit.collider.gameObject.name);

            //So from here its what do you want to do with when you click and stuff.
            //I click tile, if I've select tower 1, then I want to instantiate tower 1 on that tile, so instantiate that tower position = tile position.
            if (hitForTower.collider.gameObject.name == "TowerEasyBuy" && gm.points >= 100) {
                towerSelected = towers [0];
                gm.DecreasePoints (100);
            }
            else if (hitForTower.collider.gameObject.name == "TowerMediumBuy" && gm.points >= 200) {
                towerSelected = towers [1];
                gm.DecreasePoints (200);
            }
            else if (hitForTower.collider.gameObject.name == "TowerHardBuy" && gm.points >= 300) {
                towerSelected = towers [2];
                gm.DecreasePoints (300);
            }

            //If I have a selected tile and I have a tower saved
            if (towerSelected && hitForTower.collider.gameObject.tag == "FloorSquare")
            {
                GameObject newTower = Instantiate (towerSelected);
                newTower.transform.position = hit.collider.gameObject.transform.position;
                towerSelected = null;
            }


        }
        //Calculates overall enemy count
        overallEnemyCount = row1EnemyCount + row2EnemyCount + row3EnemyCount;