Computer_Science_Problems/Unity_APP at master · tepesalexandru/Computer_Science_Problems · GitHub

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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;

public class LevelManager : MonoBehaviour {

    public Canvas myCanvas;
    public Text grades_Text, finalMean_Text;
    public GameObject first_UI, second_UI, gradeGenerator, gradeGenerated, container;
    public RectTransform generatorRect;
    public Button[] grades_Buttons = new Button[13];
    private int[] grades = new int[21];
    private int nGrades, finalMean;
    private float currentSum, roundedMean, rawMean, tfloat;
    private float wantedMean;

    private int[] gradesVector = new int[21];


    private void Start()
    {
        first_UI.SetActive(true);
        second_UI.SetActive(false);
        nGrades = 0;
    }

    public void ButtonPressed(int index)
    {
        nGrades++;
        grades[nGrades] = index;
        UpdateGrades();
    }

    public void DeleteLast()
    {
        if (nGrades == 0 || nGrades == 20) return;
        grades[nGrades] = 0;
        nGrades--;
        UpdateGrades();
    }

    public void UpdateGrades()
    {
        int i, j;
        currentSum = 0;
        grades_Text.text = "";
        for (i = 1; i <= nGrades; i++)
        {
            grades_Text.text += grades[i];
            currentSum += grades[i];
            if (i != nGrades) grades_Text.text += ", ";
        }
    }

    public void UpgradeGrades()
    {
        if (wantedMean < 10)
        {
            wantedMean++;
            finalMean_Text.text = "" + (finalMean).ToString("0.00") + " > " + (wantedMean).ToString("0.00");
        }
        //GenerateGrades();
        CalculateGradesNeeded();
    }

    public void DowngradeGrades()
    {
        if (wantedMean > 1)
        {
            wantedMean--;
            finalMean_Text.text = "" + (finalMean).ToString("0.00") + " > " + (wantedMean).ToString("0.00");
        }
        //GenerateGrades();
        CalculateGradesNeeded();
    }

    public void CalculateGradesNeeded()
    {
        int i, j;
        Destroy(container);
        Instantiate(container, generatorRect.position, generatorRect.rotation);
        container.transform.SetParent(gradeGenerator.transform.parent);
        for (i = 0; i < 21; i++) gradesVector[i] = 0;
        for (i = 1; i <= 5; i++)
        {
            BackTrack(1, i);
        }
    }

    public void BackTrack(int x, int a)
    {
        int i, j, SS = 0;
        for (i = (int)wantedMean; i <= 10; i++)
        {
            gradesVector[x] = i;
            if (Candidate(x))
            {
                if (x == a)
                {
                    GenerateGrades(x);
                }
                else if (x < a)
                {
                    BackTrack(x + 1, a);
                }
            }
        }
    }

    bool Candidate(int x)
    {
        int i, j, S = 0;
        for (i = 1; i < x; i++)
        {
            if (gradesVector[x] < gradesVector[i]) return false;
            S += gradesVector[i];
        }
        S += gradesVector[x];
        return S == ((2 * wantedMean) - finalMean) * x;
    }

    void GenerateGrades(int x)
    {
        generatorRect = gradeGenerator.GetComponent<RectTransform>();
        GameObject tGen;
        Debug.Log(generatorRect.anchoredPosition.y);
        tGen = Instantiate(gradeGenerated, generatorRect.position, generatorRect.rotation);
        tGen.GetComponent<Text>().text = "";
        for (int i = 1; i <= x; i++)
        {
            tGen.GetComponent<Text>().text += "" + gradesVector[i] + " ";
        }
        tGen.transform.SetParent(container.transform, false);
        tGen.GetComponent<RectTransform>().anchoredPosition = generatorRect.anchoredPosition;
        generatorRect.anchoredPosition += new Vector2(0, -38f);
    }

    public void CalculateMean()
    {
        first_UI.SetActive(false);
        second_UI.SetActive(true);
        rawMean = currentSum / nGrades;
        roundedMean = Mathf.RoundToInt(rawMean);
        tfloat = rawMean * 100;
        finalMean = (int)(tfloat);
        finalMean_Text.text = "" + (rawMean).ToString("0.00");
        if (finalMean % 100 != 50) {
            finalMean = (int)roundedMean;
        } else {
            finalMean = (finalMean / 100) + 1;
        }
        finalMean_Text.text += "(" + (finalMean).ToString("0.00") + ")";
        wantedMean = finalMean;
    }

    public void ResetEverything()
    {
        SceneManager.LoadScene(0);
    }

}