Return multiple variables/values from function

[TMuh]

Hi,

Id like to return multiple values from function by using dynamic array. I have this simple function:

Code: AGS

function GetLocation (int sx, int sy,  int tdir, int tdis) {
int r_xy[] = new int[2]; //(instruction i linked above suggested "int r_xy[] = new array[2];" here but it reported error for me)
int tdir2;
if (tdir == 90) {r_xy[0] = 0; r_xy[1] = sy-tdis; return r_xy;}
}

But Im getting this error: Math.asc(85): Error (line 85): Type mismatch: cannot convert 'int[]' to 'int'
So what Im doing wrong?
And is there any other ways to return multiple values? (except global variables)

[RickJ]

The keyword "function" specifies that an int will be returned and you are attempting to return an int array.

[Khris]

In case it isn't clear, you need:

Code: ags

int[] GetLocation (int sx, int sy, int tdir, int tdis) {
  ...
  return r_xy;
}

[TMuh]

ah, ok

thank you.

[monkey0506]

(instruction i linked above suggested "int r_xy[] = new array[2];" here but it reported error for me)

Sorry, that was a typo on my part. I often type these code snippets directly in the browser (and even sometimes from my phone), and make revisions as I go. I corrected that post for posterity's sake.

I will also point out that arrays are always passed by-reference, so if you needed multiple different types then you could do something such as:

Code: ags

bool MultiVar(int myInts[], char myChars[], String myStrings[])
{
  myInts[0] = 5;
  myInts[1] = 42;
  myInts[2] = 99;
  myChars[0] = 'a';
  myChars[1] = 'n';
  myChars[2] = 'z';
  myStrings[0] = "lol";
  myStrings[1] = "ref";
  myStrings[2] = "goosnargh";
  return true;
}

Granted, this is a quite terrible example, but you could call it like:

Code: ags

int theInts[] = new int[3];
char theChars[] = new char[3];
String theStrings[] = new String[3];
MultiVar(theInts, theChars, theStrings);
Display("%d", theInts[1]); // displays 42