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Question by Fuller · May 22, 2010 at 02:25 PM · classesenumtypecastbce0051

Classes and type casting?

enum ModTypes { DoT,Blindness }

class Modifier { var type = ModTypes.DoT; var magnitude : float; var duration : float; var timer : float = 0.0;
var activateTimer = 0.0; var activateInterlapse; } public var modifiers = new ArrayList();

function ProcessModifiers() { for (mod in modifiers) { mod.timer += Time.deltaTime; if (mod.type == ModTypes.DoT) {

...

On that last line I receive a: "Assets/Scripts/Networking/PlayerScript.js(139,30): BCE0051: Operator '==' cannot be used with a left hand side of type 'System.Object' and a right hand side of type 'ModTypes'." Even though it is obviously the correct type?

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Answer by duck · May 22, 2010 at 06:21 PM

When pulling items out of an ArrayList (or a Javascript Array() class), you usually need to re-cast it back to the correct type.

If you're iterating through the array, you can do it by declaring the iterator variable's type explicitly, like this:

for (var mod : Modifier in modifiers) {

or you can cast on-the-fly like this:

if ((mod as Modifier).type == ModTypes.DoT) {

Hopefully one of these will solve your error.

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Answer by Mike 3 · May 22, 2010 at 06:21 PM

It looks like it's another case of javascript's type inference not being able to determine the type

if you change it to

var type : ModTypes = ModTypes.DoT;

it should work

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