Realy OO?

In some other post, I read, that C2 is OO. If so, are there plans to extend variables and arrays to hold "objects" as well as text, integers and booleans?

This comes up a lot, but you can hold an object in a variable by storing its UID, and use the 'Pick by UID' condition to pick it again later.

Ok, thx....and I take this as a "no" <img src="smileys/smiley2.gif" border="0" align="middle" />

If it helps you can always conceptualize variables as objects. :)

maybe it could be intersting to have th ability to pick by uid directly in expression.

we can already pick by index of selected objects like :

Sprite(2).X

Sprite(4,UID).X

Sprite(4,myVar).X

Well, C2 really is object oriented, surely, in the accepted sense that its objects have both behaviour and state.

Weishaupt, I think you're meaning something else when you ask for variables to hold objects. When Ashley points out that you can hold an object in a variable by storing its UID, does that not give you what you want?

Sure, I can live with storing a reference to an object instead of storing the whole object. Its just a little more code ans probably not so straight forward for neebies...

<img src="smileys/smiley18.gif" border="0" align="middle" />

Yann

sprite(0).uid

That's not the point newt (:

I don't want the uid I want the X of the sprite of uid 4 directly in expresion.

that's why I wrote Sprite(4,uid).X

I was thinking about that 'cause you could get some tricky math between instances of the same object type without having to complexify stuff with some foreach to pick things.

I guess in theory you could make a behavior, sprite(id).behaviorGetpos.x, or like sprite(iid).bullet.speed

What is "OO" Open Office? Ocean Orange?

Well its really oop, object oriented programing.

Basically you group things together like classes, etc, so that you can mentally visualize things rather than just looking at it like code.

newt

I'm thinking about a plugin which get all the creating instance, then save the uid - instance reference. So that I can use expression: picker.GetX(uid) to get the x position of instance.

Because that engine can add a destroy callback in plugin, plugin can remove the instance reference to prevent memory leakage.

But,... engine has no way to add a create callback. So maybe a behavior is better then a plugin. Behavior can have onCreate and onDestroy.

Well, to me, sprite(index), really is the best way to pick in instances.

newt

You may try this [Behavior"> Shell (get inst's expression from uid)

Sorry, it can only get the expression of instance, not the instance's behavior expression.

I thought the expression processing of C2 engine can only return "number" or "string".

sprite(uid).bullet.speed

sprite(uid)