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Still developing games with unity? Then you're out. Try unity to build an answer system
2022-07-24 16:54:00 【InfoQ】
One 、 Preface
Everyone supports Unity It is used for game development , For example, do 2D game 、3D game , Or the development of industrial virtual simulation software .
other Unity There's a lot that can be done , Such as question answering system .
This article introduces the development of question answering system
This question answering system , You can extract questions and scores from text documents , Then bind to UI On , In the process of answering questions , Automatically determine the score , Automatic judgment accuracy .
The purpose is to realize a small module that can be quickly imported into the project .
Two 、 Renderings and project downloads
Title document ：https://wwr.lanzoui.com/ihV6nphkzsf password :47z2
Source engineering ：https://wwr.lanzoui.com/i7wpaphkzuh
3、 ... and 、 Realization
3-1 Interface building
First , New project , Then swing UI, As shown in the figure below ：
3-2 Read document
The title is stored in txt In the document , First , Let's look at the structure ：
Every line is a topic , Then the question number 、 subject 、 Options 、 score , Are divided by colons .
The next step is to use scripts to read documents .
New script Answer.cs： Write code ：
Read document ：
using System.Collections.Generic;
using UnityEngine;
public class Answer : MonoBehaviour
{
// Read document
string[][] ArrayX;
string[] lineArray;
private int topicMax = 0;// Maximum number of questions
private List<bool> isAnserList = new List<bool>();// Store the status of whether you have answered the questions
void Start()
{
TextCsv();
}
/***************** Read txt data ******************/
void TextCsv()
{
// Read csv Binary
TextAsset binAsset = Resources.Load("YW", typeof(TextAsset)) as TextAsset;
// Read the contents of each line
lineArray = binAsset.text.Split('\r');
// Create a 2D array
ArrayX = new string[lineArray.Length][];
// hold csv The data in is stored in a two-dimensional array
for (int i = 0; i < lineArray.Length; i++)
{
ArrayX[i] = lineArray[i].Split(':');
}
// View the saved title data
for (int i = 0; i < ArrayX.Length; i++)
{
for (int j = 0; j < ArrayX[i].Length; j++)
{
Debug.Log(ArrayX[i][j]);
}
}
// Set topic status
topicMax = lineArray.Length;
for (int x = 0; x < topicMax + 1; x++)
{
isAnserList.Add(false);
}
}
}
You can see , All the subject data have been read ：
3-3 Load title
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class Answer : MonoBehaviour
{
// Read document
string[][] ArrayX;// Subject data
string[] lineArray;// Read the title data
private int topicMax = 0;// Maximum number of questions
private List<bool> isAnserList = new List<bool>();// Store the status of whether you have answered the questions
// Load title
public GameObject tipsbtn;// Prompt button
public Text tipsText;// Prompt information
public List<Toggle> toggleList;// Answer the questions Toggle
public Text indexText;// What is the current question
public Text TM_Text;// Current topic
public List<Text> DA_TextList;// Options
private int topicIndex = 0;// How many questions
void Start()
{
TextCsv();
LoadAnswer();
}
/***************** Read txt data ******************/
void TextCsv()
{
// Read csv Binary
TextAsset binAsset = Resources.Load("YW", typeof(TextAsset)) as TextAsset;
// Read the contents of each line
lineArray = binAsset.text.Split('\r');
// Create a 2D array
ArrayX = new string[lineArray.Length][];
// hold csv The data in is stored in a two-dimensional array
for (int i = 0; i < lineArray.Length; i++)
{
ArrayX[i] = lineArray[i].Split(':');
}
// Set topic status
topicMax = lineArray.Length;
for (int x = 0; x < topicMax + 1; x++)
{
isAnserList.Add(false);
}
}
/***************** Load title ******************/
void LoadAnswer()
{
tipsbtn.SetActive(false);
tipsText.text = "";
for (int x = 0; x < 4; x++)
{
toggleList[x].isOn = false;
}
indexText.text = " The first " + (topicIndex + 1) + " topic ：";// How many questions
TM_Text.text = ArrayX[topicIndex][1];// subject
int idx = ArrayX[topicIndex].Length - 3;// There are several options
for (int x = 0; x < idx; x++)
{
DA_TextList[x].text = ArrayX[topicIndex][x + 2];// Options
}
}
}
The title is loaded normally ：
3-4 Button function
/***************** Button function ******************/
void Select_Answer(int index)
{
switch (index)
{
case 0:// Tips
int idx = ArrayX[topicIndex].Length - 1;
int n = int.Parse(ArrayX[topicIndex][idx]);
string nM = "";
switch (n)
{
case 1:
nM = "A";
break;
case 2:
nM = "B";
break;
case 3:
nM = "C";
break;
case 4:
nM = "D";
break;
}
tipsText.text = "<color=#FFAB08FF>" +" The right answer is ："+ nM + "</color>";
break;
case 1:// Last question
if (topicIndex > 0)
{
topicIndex--;
LoadAnswer();
}
else
{
tipsText.text = "<color=#27FF02FF>" + " There are no questions ahead ！" + "</color>";
}
break;
case 2:// Next question
if (topicIndex < topicMax-1)
{
topicIndex++;
LoadAnswer();
}
else
{
tipsText.text = "<color=#27FF02FF>" + " Oh dear ！ It's the last question ." + "</color>";
}
break;
case 3:// Jump
int x = int.Parse(jumpInput.text) - 1;
if (x >= 0 && x < topicMax)
{
topicIndex = x;
jumpInput.text = "";
LoadAnswer();
}
else
{
tipsText.text = "<color=#27FF02FF>" + " Out of range ！" + "</color>";
}
break;
}
}
3-5 Question right and wrong judgment
/***************** Question right and wrong judgment ******************/
void AnswerRightRrongJudgment(bool check,int index)
{
if (check)
{
// Judge whether the question is right or wrong
bool isRight;
int idx = ArrayX[topicIndex].Length - 1;
int n = int.Parse(ArrayX[topicIndex][idx]) - 1;
if (n == index)
{
tipsText.text = "<color=#27FF02FF>" + " congratulations , bingo ！" + "</color>";
isRight = true;
tipsbtn.SetActive(true);
}
else
{
tipsText.text = "<color=#FF0020FF>" + " I'm sorry , Wrong answer ！" + "</color>";
isRight = false;
tipsbtn.SetActive(true);
}
// Accuracy calculation
if (isAnserList[topicIndex])
{
tipsText.text = "<color=#FF0020FF>" + " This question has been answered ！" + "</color>";
}
else
{
anserint++;
if (isRight)
{
isRightNum++;
}
isAnserList[topicIndex] = true;
TextAccuracy.text = " Accuracy rate ：" + ((float)isRightNum / anserint * 100).ToString("f2") + "%";
}
// Disable the option
for (int i = 0; i < toggleList.Count; i++)
{
toggleList[i].interactable = false;
}
}
}
Drag the button object into the card slot , Just run the program ：
The complete code is as follows ：
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class Answer : MonoBehaviour
{
// Read document
string[][] ArrayX;// Subject data
string[] lineArray;// Read the title data
private int topicMax = 0;// Maximum number of questions
private List<bool> isAnserList = new List<bool>();// Store the status of whether you have answered the questions
// Load title
public GameObject tipsbtn;// Prompt button
public Text tipsText;// Prompt information
public List<Toggle> toggleList;// Answer the questions Toggle
public Text indexText;// What is the current question
public Text TM_Text;// Current topic
public List<Text> DA_TextList;// Options
private int topicIndex = 0;// How many questions
// Button function and prompt information
public Button BtnBack;// Last question
public Button BtnNext;// Next question
public Button BtnTip;// Message alert
public Button BtnJump;// Jump topic
public InputField jumpInput;// Jump topic
public Text TextAccuracy;// Accuracy rate
private int anserint = 0;// I have answered several questions
private int isRightNum = 0;// Correct number of questions
void Awake()
{
TextCsv();
LoadAnswer();
}
void Start()
{
toggleList[0].onValueChanged.AddListener((isOn) => AnswerRightRrongJudgment(isOn,0));
toggleList[1].onValueChanged.AddListener((isOn) => AnswerRightRrongJudgment(isOn,1));
toggleList[2].onValueChanged.AddListener((isOn) => AnswerRightRrongJudgment(isOn,2));
toggleList[3].onValueChanged.AddListener((isOn) => AnswerRightRrongJudgment(isOn,3));
BtnTip.onClick.AddListener(() => Select_Answer(0));
BtnBack.onClick.AddListener(() => Select_Answer(1));
BtnNext.onClick.AddListener(() => Select_Answer(2));
BtnJump.onClick.AddListener(() => Select_Answer(3));
}
/***************** Read txt data ******************/
void TextCsv()
{
// Read csv Binary
TextAsset binAsset = Resources.Load("YW", typeof(TextAsset)) as TextAsset;
// Read the contents of each line
lineArray = binAsset.text.Split('\r');
// Create a 2D array
ArrayX = new string[lineArray.Length][];
// hold csv The data in is stored in a two-dimensional array
for (int i = 0; i < lineArray.Length; i++)
{
ArrayX[i] = lineArray[i].Split(':');
}
// Set topic status
topicMax = lineArray.Length;
for (int x = 0; x < topicMax + 1; x++)
{
isAnserList.Add(false);
}
}
/***************** Load title ******************/
void LoadAnswer()
{
for (int i = 0; i < toggleList.Count; i++)
{
toggleList[i].isOn = false;
}
for (int i = 0; i < toggleList.Count; i++)
{
toggleList[i].interactable = true;
}
tipsbtn.SetActive(false);
tipsText.text = "";
indexText.text = " The first " + (topicIndex + 1) + " topic ：";// How many questions
TM_Text.text = ArrayX[topicIndex][1];// subject
int idx = ArrayX[topicIndex].Length - 3;// There are several options
for (int x = 0; x < idx; x++)
{
DA_TextList[x].text = ArrayX[topicIndex][x + 2];// Options
}
}
/***************** Button function ******************/
void Select_Answer(int index)
{
switch (index)
{
case 0:// Tips
int idx = ArrayX[topicIndex].Length - 1;
int n = int.Parse(ArrayX[topicIndex][idx]);
string nM = "";
switch (n)
{
case 1:
nM = "A";
break;
case 2:
nM = "B";
break;
case 3:
nM = "C";
break;
case 4:
nM = "D";
break;
}
tipsText.text = "<color=#FFAB08FF>" +" The right answer is ："+ nM + "</color>";
break;
case 1:// Last question
if (topicIndex > 0)
{
topicIndex--;
LoadAnswer();
}
else
{
tipsText.text = "<color=#27FF02FF>" + " There are no questions ahead ！" + "</color>";
}
break;
case 2:// Next question
if (topicIndex < topicMax-1)
{
topicIndex++;
LoadAnswer();
}
else
{
tipsText.text = "<color=#27FF02FF>" + " Oh dear ！ It's the last question ." + "</color>";
}
break;
case 3:// Jump
int x = int.Parse(jumpInput.text) - 1;
if (x >= 0 && x < topicMax)
{
topicIndex = x;
jumpInput.text = "";
LoadAnswer();
}
else
{
tipsText.text = "<color=#27FF02FF>" + " Out of range ！" + "</color>";
}
break;
}
}
/***************** Question right and wrong judgment ******************/
void AnswerRightRrongJudgment(bool check,int index)
{
if (check)
{
// Judge whether the question is right or wrong
bool isRight;
int idx = ArrayX[topicIndex].Length - 1;
int n = int.Parse(ArrayX[topicIndex][idx]) - 1;
if (n == index)
{
tipsText.text = "<color=#27FF02FF>" + " congratulations , bingo ！" + "</color>";
isRight = true;
tipsbtn.SetActive(true);
}
else
{
tipsText.text = "<color=#FF0020FF>" + " I'm sorry , Wrong answer ！" + "</color>";
isRight = false;
tipsbtn.SetActive(true);
}
// Accuracy calculation
if (isAnserList[topicIndex])
{
tipsText.text = "<color=#FF0020FF>" + " This question has been answered ！" + "</color>";
}
else
{
anserint++;
if (isRight)
{
isRightNum++;
}
isAnserList[topicIndex] = true;
TextAccuracy.text = " Accuracy rate ：" + ((float)isRightNum / anserint * 100).ToString("f2") + "%";
}
// Disable the option
for (int i = 0; i < toggleList.Count; i++)
{
toggleList[i].interactable = false;
}
}
}
}
Four 、 an account of happenings after the event being told
On the whole , Only one scenario is used , A script , The answer system is completed .
Steps are as follows ：1、 Read document 2、 Parse the document and save the data 3、 Load the title according to the data 4、 Last question next question , Option selection , Jump , Button function realization
The code still delays the consistent concise style , I hope you can learn something from this article .
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