using UnityEngine;
using System.Collections;

public class HelloWorld : MonoBehaviour {

    int minValue = 1;
    int maxValue = 1000;

    int min;
    int max;
    int guess;
    bool finish;

    int lastnumber;

	void Start () {
        NewGame();
        //Debug.Log("Hello World");
	}

	// Update is called once per frame
	void Update () {
        GameControl();
	}

    void GameControl()
    {
        //Guessing
        if (!finish)
        {
            if (Input.GetKeyDown(KeyCode.UpArrow))
            {
                if(guess == maxValue)
                {
                    Debug.Log("You have reach maximum number");
                    return;
                }
                lastnumber = guess;
                min = guess;
                guess = (min + max) / 2;
                //Debug.Log("You have press Up Arrow");
                Debug.Log("Your number is : " + guess + " ?");
                Debug.Log("If higher press Up Arrow if lower press Down Arrow");
                Debug.Log("================================");
                FixNotReachMax();
            }
            else if (Input.GetKeyDown(KeyCode.DownArrow))
            {
                if(guess == minValue)
                {
                    Debug.Log("You have reach minimum number");
                }
                lastnumber = guess;
                max = guess;
                guess = (min + max) / 2;
                //Debug.Log("You have press Down Arrow");
                Debug.Log("Your number is : " + guess + " ?");
                Debug.Log("If higher press Up Arrow if lower press Down Arrow");
                Debug.Log("================================");
            }
            //Ending Guess
            else if (Input.GetKeyDown(KeyCode.Return))
            {
                finish = true;
                //Debug.Log("You have press Enter");
                Debug.Log("You number is " + guess);
                Debug.Log("Press Enter again if you want to play again!");
                Debug.Log("Press ESC to leave a game");
                Debug.Log("================================");
            }
        }
        else
        {
            //Restart
            if (Input.GetKeyDown(KeyCode.Return))
            {
                NewGame();
            }
            //Quit
            else if (Input.GetKeyDown(KeyCode.Escape))
            {
                Application.Quit();
            }
        }
    }

    void NewGame()
    {
        min = minValue;
        max = maxValue;
        finish = false;
        guess = (min + max) / 2;
        Debug.Log("Welcome to My GUESS NUMBER ");
        Debug.Log("Pick number between");
        Debug.Log("Max number is = " + maxValue);
        Debug.Log("Min number is = " + minValue);
        Debug.Log("================================");
        Debug.Log("Press Up Arrow if your Guess is higher");
        Debug.Log("Press Down Arrow if your Guess is lower");
        Debug.Log("Your Number is higher or lower than = " + guess + " ?");
        Debug.Log("================================");

    }

    void FixNotReachMax()
    {
        if (guess == lastnumber)
        {
            guess++;
        }
    }

}