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how can i make a system that randomly picks a table out of a table?

Asked by

karbis 50

4 years ago

table:

local questionlist1 = {
    question10 = {
        text = "What is your username";
        speed = .1;
        answer = 1;
        answertext1 = player.Name;
        answertext2 = string.lower(player.Name);
        successtext = "Correct!";
        failtext = "Wrong.";
        successeventfunction = function() learnedquestionsansweredright = learnedquestionsansweredright + 1 end;
        faileventfunction = function() end;
    };
    question11 = {
        text = "What is your account age";
        speed = .1;
        answer = 2;
        answertext1 = tostring(player.AccountAge - 1);
        answertext2 = tostring(player.AccountAge);
        successtext = "Correct!";
        failtext = "Wrong.";
        successeventfunction = function() learnedquestionsansweredright = learnedquestionsansweredright + 1 end;
        faileventfunction = function() end;
    };
    question12 = {
        text = "What is the name of this game";
        speed = .1;
        answer = 2;
        answertext1 = "the test.";
        answertext2 = "The test.";
        successtext = "Correct!";
        failtext = "Wrong.";
        successeventfunction = function() learnedquestionsansweredright = learnedquestionsansweredright + 1 end;
        faileventfunction = function() end;
    };
    question13 = {
        text = "What is the creator of this game";
        speed = .1;
        answer = 1;
        answertext1 = "karbis";
        answertext2 = "Karbis";
        successtext = "Correct!";
        failtext = "Wrong.";
        successeventfunction = function() learnedquestionsansweredright = learnedquestionsansweredright + 1 end;
        faileventfunction = function() end;
    };
    question14 = {
        text = "What is 3^3 + 1592 + 3295?";
        speed = .1;
        answer = 2;
        answertext1 = "4614";
        answertext2 = "4914";
        successtext = "Correct!";
        failtext = "Wrong.";
        successeventfunction = function() learnedquestionsansweredright = learnedquestionsansweredright + 1 end;
        faileventfunction = function() end; 
    };
    question15 = {
        text = "What is the square root of 9 + 1912 - 1842";
        speed = .1;
        answer = 2;
        answertext1 = "63";
        answertext2 = "73";
        successtext = "Correct!";
        failtext = "Wrong.";
        successeventfunction = function() learnedquestionsansweredright = learnedquestionsansweredright + 1 end;
        faileventfunction = function() end; 
    };
    question16 = {
        text = "What is 44% of 22 x 1392 x 9";
        speed = .1;
        answer = 1;
        answertext1 = "121271.04";
        answertext2 = "91271.04";
        successtext = "Correct!";
        failtext = "Wrong.";
        successeventfunction = function() learnedquestionsansweredright = learnedquestionsansweredright + 1 end;
        faileventfunction = function() end; 
    };
    question17 = {
        text = "1281 - 1823 / 1928 /(:) 8";
        speed = .1;
        answer = 2;
        answertext1 = "903.88180757";
        answertext2 = "1280.88180757";
        successtext = "Correct!";
        failtext = "Wrong.";
        successeventfunction = function() learnedquestionsansweredright = learnedquestionsansweredright + 1 end;
        faileventfunction = function() end; 
    };
}

thing that im trying to make it randomly pick:

local questionpicked = questionlist[math.random(1,#questionlist)]

The math.random(1, #tbl) works to get a random element from ARRAY part of a table. programmerHere 371 — 4y

1 answer

-1

Answered by

killer08932 149

4 years ago

You are looping through the table as if it were like this

{"a","b","c"}

while really the table you are dealing with is like this

{a="a",b="b",c="c"}

When you are dealing with key=value tables, there is a different way you need to loop it. I usually loop through tables like this with the table.foreach function but there are other ways to do it.

table.foreach(questionlist,function(i,j)
    print(i,j)
end)

So if you wanted to make a system that picked a random question from the list, first you would have to get all of the keys from the original list and put them into their own list.

items = {}
table.foreach(questionlist,function(i)
    table.insert(items,i)
end)

After that, you need to get a random element from that table and then receive that item from the original table by doing this:

question = questionlist[items[math.random(1,#items)]]

The final code should look like this:

items = {}
table.foreach(questionlist,function(i)
    table.insert(items,i)
end)
question = questionlist[items[math.random(1,#items)]]
print(question)

You can read more about tables here. If I need to clarify something or if there is an error tell me and I will be happy to help.

thanks but i realised i did a dictionary instead but i will use this when i need to karbis 50 — 4y

-1 for using deprecated table.foreach and encouraging it programmerHere 371 — 4y

how can i make a system that randomly picks a table out of a table?

1 answer

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