Digital Workshop

Dan,

Glad you got it working. I found the EventHandler stuff a bit mind-bending first time, and revisiting it reminded me of that experience.

Good if you can add your Help File corrections over in existing post in the Lounge. Eventually hope those get picked up. And time saved as a result.

Mack wroteIn some of our previous discussions on OOP and the Spaceship code, I thought there was 'creation' of objects there... ?? What would make this different/better? (in short)

I had an issue with this. The hotspots were all so close together that the mouseover - mouseouts didn't trigger correctly. It seemed that the mouseout from one spot often triggered after the mouseover of the next. The solution I used here was to get rid of the mouseout functions and place extra hotspots around that act to cancel the effect of the mouseovers. I might run into probs with this later though.

Mack - not heard of OPP. OOP is something to do with objects and POP something to do with fizzy drinks and crap music. The help doesn't find it and the inet suggests its something telco. Any further pointers?

Lar - I had a go at passing a variable to the function in the event handler, but this got really silly. I had evals all over the place, to no avail.

Thanks
Dan

Dan1 wrote
Mack prior:

'OPP' stands for "Old People's Programming"
It is characterized by the word 'objects' being a verb rather than a noun.
Also, wait(seconds) is replaced by nap(often).
Any entity in OPP that has a 'property' -- causes the programmer to worry about property.taxes

Just a few of the Forum discussions related to OOP within OpusScript:
viewtopic.php?t=3083
viewtopic.php?t=3001
viewtopic.php?t=3521

Other related posts can be found via searching some/all of:
object + property/-ties
array + objects
...and maybe clones + array



'Yes', just absolutely true. 'eval()' can be a challenge generally -- but when mixed with the RegisterEventHandler, I've been stumped too.

One point of learning: if you are testing or developing a script with 'R-E-H' as I'll call it, the function you reference must exist first (preferably, but not necessarily in the same Script Object) so Opus can find it when it processes the R-E-H. Also it is best if that function is proven to work and not have gross errors.

Another observation: how the strings plus operators plus variables are grouped/bounded by single-quotes and double-quotes matters. Usually can use one type or the other, but sometimes there is need/benefit of weaving both to write the expression. ?. Still learning here.
viewtopic.php?t=3047&highlight=eval

Cheers Lar,

Are you suggesting I'm old . To answer your previous question, I meant the creation of host objects whereas in previous topics we were discussing the creation of user objects.

I should also point out, having mentioned a competing product (well maybe in Adobe's mind anyway) that Opus' method of 'drawing' the host objects with a GUI is one of the reasons that it's such a great product and much more accessible. However, there comes a point, a bit like making a curry, that rather than just buy the sauce, it better to buy the raw ingredients and start from scratch.

Although, it might be a wish for me to have access to such a facility, it's not something that I'd add to the list, simply because it not really, in my opinion, part of the Opus paradigm and I doubt that it would be beneficial to enough to present users to make it viable. I grew up on languages that did not have the 'visual' prefix and everything was built from code. Nowadays, we have amazing drag-n-drop languages, with the whole OPP (yes I know) thing and with the internet and other interactive services - the traditional languages are not necessarily required to produce a computer programme. The world of languages is changing , look at Ruby, Ajax and even the rewrite of AS3.

@Dan, yes sorry meant OOP. Opus Script is early ECMA script and thus a relative of JavaScript. Unfortunately, many sources of information on this language fail to deal with the subject correctly which is odd, because Opus and the browser both use all three objects families and their supporting scripts are very powerful at interacting with the objects. It's actually no big mystery, and despite a posh name and yet another acronym - anybody using Opus is an OOPer (can I say that?).

Draw a text box on screen and you've created an object. Change the colour and you've altered a property and add a action to hide with mouse over and you've triggered a method.

Mack

'Yes' I think so, or maybe I'm reflecting on some earlier post where you've confessed same.

Thx for clarifying 'dynamically created objects' -- host objects.

Given the 'lay of the landscape' you've just painted, I'd simple wish for a compendium of OOP/OPP/OPO constructions -- for user objects. Some tutorial that explains when to use 'new Object()' and when it is okay/preferable to write: variable002 = create_an_object_function() ; //where that is a function that "returns" an object.

Nuf said here.

Now on to Method Chaining in opusscript.

ps. liked the 'curry' analogy (5 minutes after I first read it). I'm not OLD, I'm dense.