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An ACS library for ZDoom-based ports

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mulretval [2016/04/25 00:32] korshunmulretval [2017/07/13 18:29] korshun
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-====== Multiple return values ====== +#REDIRECT a_GetCVarFixed
- +
-acsutils uses a simple convention for functions returning multiple values, like RotateVector(): +
- +
-There are global variables r1 through r8. The functions write their return values to them. +
- +
-    RotateVector(x, y, angle); // Call the function +
-    int newX = r1; // Get the first returned value +
-    int newY = r2; // And the second one +
- +
-<note warning>You should retrieve the return values **as soon as possible**, or else they may get overwritten by other functions that return multiple values.</note>+