Problem with type casting from C# to JS

[system]

I’ve been fighting this problem for a couple of hours and have finally decided to ask my first question on UA.

I have a line of code that works fine in C#

Transform bullet = (Transform)Instantiate(bulletPrefab, startPos, shotAngle);

But when I try and translate it to JS I keep getting errors. I’ve tried a couple of different ways of writing this line, inlcuding:

var bullet : Transform = Instantiate(bulletPrefab, startPos, shotAngle) as Transform;

and

var bullet : Transform = (Transform)Instantiate(bulletPrefab, startPos, shotAngle);

But neither way will compile for me. I keep getting the error “UCE001: ‘;’ expected. Insert a semicolon at the end.” for this line of code.

I can not for the life of me figure out what simple mistake I am making in this translation. I have not coded much in C# (at least inside of Unity anyways), I’ve mainly used JS (but never outside of Unity). So I know it has to be something simple, so any help would be greatly appreciated.

EDIT - Well I feel dumb, after some sleep, I went through my code again and found out that there was a small bug elsewhere in the code that was the actual cause of the ball not to follow it’s trajectory.

All of the following versions of code work now:

var bullet : Transform = Instantiate(bulletPrefab, startPos, shotAngle) as Transform;
var bullet : Transform = Instantiate(bulletPrefab, startPos, shotAngle);
var bullet : Transform = (Instantiate(bulletPrefab, startPos, shotAngle)).transform;

But I did learn a lot about casting in JS. Thanks everyone for there help, and for putting up with my dumb 1st question.

[Julien-Lynge]

I don’t code in JS, so forgive me if there’s a more elegant solution.

I poked around and it appears from my testing like JS returns a GameObject (rather than Object like C#) on Instantiate calls. So, your error seems to be that Unity doesn’t want to typecast a GameObject into a Transform. What I did to get it working is treat it as a GameObject and grab the associated transform:

var bullet : Transform = (Instantiate(bulletPrefab, startPos, shotAngle)).transform;

Good luck.

[system]

Removing “as Transform” from first statement can solve your problem.

[system]

use transform instead of Transform first, since JS is case sensitive language. Again it will be better if you instantiate the tansform object inside a function if you have to create it at runtime(though I dont know where exactly you are declaring variable.)