• Announcements

    • khawk

      Download the Game Design and Indie Game Marketing Freebook   07/19/17

      GameDev.net and CRC Press have teamed up to bring a free ebook of content curated from top titles published by CRC Press. The freebook, Practices of Game Design & Indie Game Marketing, includes chapters from The Art of Game Design: A Book of Lenses, A Practical Guide to Indie Game Marketing, and An Architectural Approach to Level Design. The GameDev.net FreeBook is relevant to game designers, developers, and those interested in learning more about the challenges in game development. We know game development can be a tough discipline and business, so we picked several chapters from CRC Press titles that we thought would be of interest to you, the GameDev.net audience, in your journey to design, develop, and market your next game. The free ebook is available through CRC Press by clicking here. The Curated Books The Art of Game Design: A Book of Lenses, Second Edition, by Jesse Schell Presents 100+ sets of questions, or different lenses, for viewing a game’s design, encompassing diverse fields such as psychology, architecture, music, film, software engineering, theme park design, mathematics, anthropology, and more. Written by one of the world's top game designers, this book describes the deepest and most fundamental principles of game design, demonstrating how tactics used in board, card, and athletic games also work in video games. It provides practical instruction on creating world-class games that will be played again and again. View it here. A Practical Guide to Indie Game Marketing, by Joel Dreskin Marketing is an essential but too frequently overlooked or minimized component of the release plan for indie games. A Practical Guide to Indie Game Marketing provides you with the tools needed to build visibility and sell your indie games. With special focus on those developers with small budgets and limited staff and resources, this book is packed with tangible recommendations and techniques that you can put to use immediately. As a seasoned professional of the indie game arena, author Joel Dreskin gives you insight into practical, real-world experiences of marketing numerous successful games and also provides stories of the failures. View it here. An Architectural Approach to Level Design This is one of the first books to integrate architectural and spatial design theory with the field of level design. The book presents architectural techniques and theories for level designers to use in their own work. It connects architecture and level design in different ways that address the practical elements of how designers construct space and the experiential elements of how and why humans interact with this space. Throughout the text, readers learn skills for spatial layout, evoking emotion through gamespaces, and creating better levels through architectural theory. View it here. Learn more and download the ebook by clicking here. Did you know? GameDev.net and CRC Press also recently teamed up to bring GDNet+ Members up to a 20% discount on all CRC Press books. Learn more about this and other benefits here.
Sign in to follow this  
Followers 0
WitchLord

AngelScript 2.26.1

8 posts in this topic

Sorry, it seems i deleted the question while tagging the code. Let me rewrite a better one smile.png

 


 

The script compiler has been enhanced to finally support implicit conversion from primitive types to registered value types by allowing the compiler to call the appropriate constructor.

 

Does this mean if i have constructor for a type like this "any(int val)" then i can call this?

any foo = 42;

 

I looked in tests folder but could not find new tests for this feature. It's committed in rev1568 but there are no new tests.

Implementing it like this did not give any fruit.

 

int r = engine->RegisterObjectType("any", sizeof(Any), asOBJ_VALUE | asOBJ_APP_CLASS_CDAK);assert(r >= 0);    
r = engine->RegisterObjectBehaviour("any", asBEHAVE_CONSTRUCT, "void f(uint)", asFUNCTIONPR(Any::CreateAny, (unsigned int, Any*),void), asCALL_CDECL_OBJLAST); assert(r >= 0);

compile error: There is not copy operator for the type any available


Adding an opAssign method works tho.

 

Thanks!

Edited by saejox
0

Share this post


Link to post
Share on other sites

Hmm. This currently doesn't work because the compiler would first implicitly convert 42 into an instance of any, and then assign that instance of any to the declared variable. It won't initialize the declared variable directly with the constructor that takes uint. If you add an opAssign that takes an 'any' it should work though. 

 

Quite frankly, I think this is a 'border case'. I mean, the use of copy constructor, or in this case the constructor that takes an uint to initialize the variable would just be an optimization that the compiler could make. Since the any type doesn't have the assignment operator it probably shouldn't be allowed to be initialized with this syntax.

 

I didn't add a lot of new tests for this change, because the code mostly already existed. I mostly only enabled the path to allow implicit cast from primitive to value type. All the rest of the logic for when and where implicit casts are used is still the same.

0

Share this post


Link to post
Share on other sites

Thanks, i understand. I thought that's a bug.

opAssign would do nicely.

 

 

I have another small question,

 

Why is scriptany addon implemented as GC collected ?

Wouldn't a value type be enough.

I'm not a pro at garbage collection sorry for my noobiness :) .

0

Share this post


Link to post
Share on other sites

Way back when I implemented CScriptAny, I decided to make the object a reference type, allow a handle to it be passed around. 

 

It would definitely be possible to implement the type as a value type too, but then when passing the type around it would have to be as copies which would be more expensive.

0

Share this post


Link to post
Share on other sites

Way back when I implemented CScriptAny, I decided to make the object a reference type, allow a handle to it be passed around. 

 

It would definitely be possible to implement the type as a value type too, but then when passing the type around it would have to be as copies which would be more expensive.

 

I think i can write a 8 bytes any for both 64bits and 32bits. That wouldn't be slow to copy.

I'll write a value type any and benchmark it :)

0

Share this post


Link to post
Share on other sites

The problem is not the container itself, but what it contains. If it holds a value type, then that value needs to be copied together with the container, if it holds a reference type, then that reference needs to be increased, and so on. 

 

But, by all means, do the benchmark. I'd love to be proven wrong :)

0

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0