The Big Programming Thread - Page 916

On November 06 2017 09:51 WarSame wrote:
I just saw the most unethical Github project ever. OAuth using 23andme so you can use demographic discrimination for access to a site.

In an LPMud the mudlib is the support framework for the world. The MudOS driver provides the very basic fundamentals and the mudlib provides the features necessary to make a working game. The mudlib is what defines how most common objects work and what capabilities they have.

Discworld has created and maintains its own mudlib. The mulib was started in 1991 and has been under constant development ever since. Unlike some other distribution libs the Discworld lib is a working mudlib, used to run a very large LPMud. There are also about 20 other MUDs that use the lib or a derivative of it.

The Discworld mudlib goes beyond the norm with the number and variety of objects available and the level of detailed interaction that is possible with them. For example, books on Discworld can not only be read, they can be written on, they can be published and printed, you can even tear pages out of them. This kind of attention to detail, this immersive environment, is found throughout Discworld MUD.

The Discworld mudlib was first released in 1993 and the current version is available for download for free from the mud links section.

If you setup a MUD that uses the Discworld lib you may wish to join the dwcre and dwchat intermud channels (see documentation for details).

On November 09 2017 15:44 emperorchampion wrote:
I think he means C# but I could be wrong

On November 10 2017 09:05 enigmaticcam wrote:
Question on entity framework, (C#.net): I've just recently started using EF. I've been doing a lot of googling, but I'm a bit stumped on this. Suppose I have three tables:

Student (StudentId,StudentName)
Class (ClassId,ClassName)
Grade (StudentId,ClassId,Grade)

I want to create a relationship between Student and Grade, and then a relationship between Class and Grade. The primary key in Grade is a composite key of StudentId and ClassId. You can't have a grade for a student that doesn't exist, nor a grade for a class that doesn't exist, right? Nor can you have two grades for the same student in the same class. Is there a way to create a relationship between these tables in EF? It's telling me I can't because the key in Student and Class don't match the key in Grade.

public class Grade
{
    ...
    [ForeignKey="Student"]
    [Column(Order=0]
    public int StudentId { get; set; }

    [ForeignKey="Class"]
    [Column(Order=1]
    public int ClassId { get; set; }
    ...
}

On November 10 2017 09:03 Manit0u wrote:
Damn, this all brought some nostalgia and now I wonder why no other language has adopted LPC's shadowing yet. It is such an awesome and powerful feature...

Basically, you can extend objects during their lifetime (yes, even after they've been initialized) and even remove those extensions from them when you want. Just imagine the possibilities! Objects having extra functionality only when you really need it and no longer than you need it (in C# it would be similar to adding/removing traits to objects on the fly).

On November 10 2017 09:50 Hanh wrote:


How do references to objects through traits behave?

The standard shadow module also provides easy access to the original object. The variable shadow_who is set to the original object, so in the shadow object any call on the form shadow_who->function() goes to the original object function, even if it is shadowed in the shadow object.

inherit "/std/shadow";

int
start(string pl_name)
{
    return(objectp(shadow_me(pl_name)));
}

int
stop()
{
    remove_shadow();
}

string
query_gender_string()
{
    return "xxx";
}

// please notice that I've added both a start and a stop function for easy testing;
// these really aren't necessary as long as the shadow somehow calls shadow_me() with the target
// (either as a name or an object reference) as argument. 

On November 06 2017 09:51 WarSame wrote:
I just saw the most unethical Github project ever. OAuth using 23andme so you can use demographic discrimination for access to a site.

On November 09 2017 14:11 Thaniri wrote:
I don't know what C* is but here is some pseudocode that might get you going.

class character{
  int hpmax
  int hpcurrent
  int basedamage
  array<items> items
}

class item{
  int damage
}

//put this in the character class
function calculatedamage{
  int temp = this.basedamage
  for each item in items
    temp += item.damage
  return temp
}

A setup like this would calculate the total damage of the character every time it needs to be (for instance when attacking something)

A different setup might actually modify the damage stat of the character class itself.

I'm not a good enough programmer to tell you which is better.

edit: might as well mention that I like this solution cause it is pretty easy to also add in fun stuff like buffs and debuffs.