koobas.hobune.stream
What's wrong with eval()?
Hi there...
I am trying to make a standalone game that allows anybody to hack or mod it using js - but eval() won't work any more: BCE0172: `UnityScript.Scripting.IEvaluationDomainProvider' interface member implementation must be public or explicit.
To give you a little idea of what I need to do:
function Update () {
eval("Debug.Log('test');");
}
The command String will of course be a variable. Please help me - I found no solutions online and I don't want to use #C or PlugIns.
Thank you very much
Ruben
The above error problem also appears if you have the script in a folder like /Assets, so place it in /plugins or /editor and it will solve the error. probably because it uses .net framework and needs to compile before other scripts.
You can use eval() like this:
JS:
private var code:String = "print (a + b)";
var a:int = 3;
var b:int = 2;
var printOnUpdate:boolean = false;
function Start ()
{
code = "print ('invoked from start: '+ (a - b) )";
eval(code);
}
function Update ()
{
if(printOnUpdate)
{
code = "print ('invoked from update: '+ (a * b) )";
eval(code);
printOnUpdate = false;
}
}
function OnGUI()
{
if (GUI.Button (Rect (150, 10, 100, 50), "evaluate"))
{
code = "print ('invoked from OnGUI: '+ (a + b) )";
eval(code);
a++;
printOnUpdate = true;
}
}
(expanding on Eric5h5s example in another thread)
Notice that only the string-var "code" can be private. Every var that is accessed in the evaluated function (in this case ints "a" and "b") have to be public, otherwise you will see the described errormessage. The string "code" can be changed at any point, as you see in the example, and just as well you can change a or b.
Also notice that "#pragma strict" has to be removed in any script where eval() is used. If enabled for any script in which you access eval() it will throw the error, and not only for that script, but for ALL scripts in which you use eval() (even those that already have the pragma-line removed!)
Welcome ^^. Don't forget to mark the answer as "correct" if it solved your problem.
Damn...Thanks for your help, but its still not working! ^^
Please remove this answer! It is not an answer, but a comment.
your code didnt work until i moved it to plugins folder and then it runs fine.
