Topic: Basic basic intro help please with 'Struct'

[madradubhcroga]

[Khris]

First of all, the forum search should provide several threads that explain in detail how to do this. Please only open a thread after you have exhausted available resources.

Now, since this thread is here:

Code: Adventure Game Studio

1. // header (GlobalScript.ash)
2.  
3. struct Question {
4.   String q; //The question
5.   String ans[4]; //The answeres, from ans[0] to ans[3]. You could make 4 seperate variables, I preffer arrays
6.   int RightAns; //Number of the correct answere;
7.   int category; //Say 1 = Nature, 2 = Poltics etc.
8. };
9.  
10. // GlobalScript.asc, at the very top
11. Question question[50];
12.  
13. // this inside game_start:
14.  
15.   question[0].q = "Cé hé seo?";
16.   question[0].ans[0] = "Ronnie Drew";
17.   question[0].ans[1] = "...";
18.   question[0].ans[2] = "...";
19.   question[0].ans[3] = "...";
20.   question[0].RightAns = 0;
21.   question[0].category = 1;

Note that you can setup an enum for the categories:

Code: Adventure Game Studio

1. // this in the header, too
2.  
3. enum Category {
4.   eCatNature = 1,
5.   eCatPolitics = 2
6. };

Now you can write

Code: Adventure Game Studio

1.   question[0].category = eCatPolitics;

You don't need to put ()s around Strings.
.RightAns is an int and supposed to hold the index of .ans[] that stores the correct answer, so needs a value from 0-3.

[Kweepa]

A few things:
1. You need to declare structs before using them.
2. Array indices go from 0...N-1
3. You can't have a variable called question and an array called question[50].
4. Initialization of structs (i.e., filling out the variable contents) has to go in a function (eg game_start).

Code: Adventure Game Studio

1. struct Question // 1. declared first
2. {
3.   String q;
4.   String ans[4];
5.   int rightAns;
6.   int category;
7. };
8.  
9. Question questions[50]; // 3. renamed this to avoid clash with the variable below
10. Question question;
11.  
12. function game_start() // 4. put initialization into game_start function
13. {
14.   question.q = "Who is this?";
15.   question.ans[0] = "Van Morrison";
16.   question.ans[1] = "Shane MacGowan";
17.   question.ans[2] = "Feargal Sharkey";
18.   question.ans[3] = "Ronnie Drew"; // 2. last array index is 4-1
19.   question.rightAns = 3;
20.   question.category = 1;
21. }
22.  

Ah, Khris

[madradubhcroga]

Thankyou both.
I belive you Khris, and I don't mean to waste anybody's time.  The first 6 or 7 threads I searched seemed too advanced for me, (or delt with specific issues) and the manual entry is so terse that I don't know how to apply the information.

I think I have applied your codes correctly, because the game runs.

But I don't know how to call it.

 I have an object in room 1 that on click opens a gGUI holding a picture of Mr. Drew, and space for the questions and answers.

What is the correct way to proceed?


ps

I tried putting

[Code]

  question[0].category = eCatPolitics;
 
[/code]

in room1.asc

under
function oQ1_AnyClick()


but got

" Failed to save room room1.crm; details below
room1.asc(10): Error (line 10): Undefined token 'question' "

when I capitalized the Q in question, the message changed to:



" Failed to save room room1.crm; details below
room1.asc(10): Error (line 10): fixed size array cannot be used in this way "

[monkey_05_06]

If you're putting that code in the room script then you're going to need to import and export the instances of your struct from the Global Script (which is also just a search away).

Code: Adventure Game Studio

1. // GlobalScript.ash
2.  
3. // beneath the definition of the Question struct
4. import Question questions[50];
5. import Question question;
6.  
7. // GlobalScript.asc
8.  
9. // beneath the definition of the instances (outside of any functions)
10. export questions;
11. export question;