• 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
StoneMask

Can you overload the assignment operator to take multiple values? [FIXED]

3 posts in this topic

This is something I've been curious about. Say with certain structs/classes, you can define them while declaring them by assigning them to multiple values contained within curly braces. For instance, with the COORD struct:

 

COORD position = {0, 0, 0};

 

How do you do this in code? Or is this some strange special case? I can't find anything on the subject.

 

EDIT: I really should code before I speak. I'm pretty sure you can just define all the variables once you declare a struct, and it'll go down the list of the struct's variables, so if I were to have a similar struct, let's say Vector, with X, Y, and Z values, you would be able to declare and define a variable of its type with Vector = {0,0,0}; This doesn't work for assignment though, for some reason. Is there a way to do that?

Edited by StoneMask
0

Share this post


Link to post
Share on other sites

Semi-relevantly, here's a function I use in my code base for formatting strings.
 

/*
	Creates a string from 'str', with every occurance of "%n" replaced with the nth argument.
	
	Example: String::Format("The time is now %1 on the %3 of %2", {time, month, day})
*/
std::string Format(std::string text, const StringList &arguments)
{
	StringList symbols = {"%1", "%2", "%3", "%4", "%5", "%6", "%7", "%8", "%9", "%10", "%11", "%12", "%13", "%14", "%15"};
	
	unsigned int i = 0;
	for(const auto &arg : arguments)
	{
		if(i <= symbols.size())
		{
			text = String::ReplaceAll(text, symbols[i], arg);
		}
		
		i++;
	}
	
	return text;
}

It takes advantage of C++11's curly-bracket "uniform initialization syntax" to initialize a std::vector<std::string> (typedef'd to StringList since I use them so frequently).

Just a quick and sloppy implementation that works fairly well. It could be optimized further (it's very Schlemiel at the moment), but I haven't needed to yet.

 

But yes, uniform initialization syntax works for other types:

#include <iostream>
 
struct Point
{
     int x = 0; //default value of 0
     int y = 0;
};
 
int main()
{
     Point point = {640, 480};
     std::cout << point.x << ", " << point.y << std::endl;
     
     return 0;
}

 

Try the code

 

It works, for example, in C++11's new tuple types. C++11 must be enabled on your compiler for you to have access to the new features. How you enable it varies from compiler to compiler, but for GCC/MinGW you pass in -std=c++11 (or -std=c++0x for older versions of GCC).

1

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