What Do You Need Help With? V6

[Richy13]

Ive just come up with an issue in my ogl program,

VS2010 gives this in the output when closing, the program crashes when closing
First-chance exception at 0x779fe3be in StandAlone.exe: 0xC0000005: Access violation reading location 0xef25486c.

Using breakpoints the program reaches the
return 0;
line without any issues, and seems to fail after. Using gDEBugger I found some errors:

OpenGL Render Context 3 Created
Thread Terminated: 1444
Thread Created: 3060
OpenGL Render Context 3 Deleted
Debug String: Detected error: The debugged process asked for an extension function pointer (glDeleteShader) from one render context, but called this function pointer in another render context (context #2) 
Debug String: Detected error: The debugged process asked for an extension function pointer (glDeleteProgram) from one render context, but called this function pointer in another render context (context #2) 
Debug String: Detected error: The debugged process asked for an extension function pointer (glDeleteBuffers) from one render context, but called this function pointer in another render context (context #2) 
OpenGL Render Context 1 Deleted
Checking for memory leaks - Context 2 deleted
No memory leaks were found
OpenGL Render Context 2 Deleted
Thread Terminated: 168
Thread Terminated: 3060
Checking for memory leaks - Application exit
No memory leaks were found
API Connection Ended: gDEBugger OpenGL Server
API Connection Ended: gDEBugger Servers Manager
Thread Terminated: 968
Process Exit

Im using SFML and context 3 is the actual context I created.

The actual errors are:

[QUOTE]Debug String: Detected error: The debugged process asked for an extension function pointer (glDeleteShader) from one render context, but called this function pointer in another render context (context #2)
[/QUOTE]

[QUOTE]Debug String: Detected error: The debugged process asked for an extension function pointer (glDeleteProgram) from one render context, but called this function pointer in another render context (context #2)
[/QUOTE]

[QUOTE]Debug String: Detected error: The debugged process asked for an extension function pointer (glDeleteBuffers) from one render context, but called this function pointer in another render context (context #2)
[/QUOTE]

Which match my shader destructor

Shader::~Shader()
{
    glDeleteShader( mVertexID );
    glDeleteShader( mFragmentID );
    glDeleteProgram( mShaderID );
}

However I put a breakpoint on that line and it all seemed to work fine

[twoski]

Why are there no good matlab pages anywhere

I just want to plot a fucking function from 0.5 to 3.

x = 0.5:1/100:3;
y=(2*x^3+5) / (3*x^2);
plot(y)

It gives me some error about x not being a matrix or something

[Richy13]

I think I found the issue, I called window.Close() before killing the shaders... Duhh

[ZeekyHBomb]

[QUOTE=twoski;42533810]Why are there no good matlab pages anywhere

I just want to plot a fucking function from 0.5 to 3.

x = 0.5:1/100:3;
y=(2*x^3+5) / (3*x^2);
plot(y)

It gives me some error about x not being a matrix or something[/QUOTE]

You need to use the element-wise power, ".^".

[aehm ?]

Im looking for a good WPF Guide with this content.
Binding in a WPF Grid a Database Object and a live view.

Someone have literature for that?

[Quarternions]

About the depth issue's I was having, I was using a different version of glfw then overv in which I had to specify if I wanted a depth buffer in the window creation, changed window creation and solved :)

I am having some issues with memory management, probably because of copying over stuff. I reverted back to my last git version, anyone got some time to look at a bit of code and answer some general questions about memory management over your voice client of choice (skype/TS/steam etc.) ?

[backwardspy]

[QUOTE=twoski;42533810]Why are there no good matlab pages anywhere

I just want to plot a fucking function from 0.5 to 3.

x = 0.5:1/100:3;
y=(2*x^3+5) / (3*x^2);
plot(y)

It gives me some error about x not being a matrix or something[/QUOTE]
[url]http://www.wolframalpha.com/input/?i=y%3D%282*x%5E3%2B5%29+%2F+%283*x%5E2%29%2C+x+from+0.5+to+3[/url]

[JazZ5109AI]

do pictureboxes in c# not support transparency? I literally could've sworn they did but I'm having no luck.

By transparency I do not mean copying the forms color, I need it that when it overlays controls it doesn't show the white form color, but the control behind it

[Tamschi]

[QUOTE=JazZ5109AI;42547766]do pictureboxes in c# not support transparency? I literally could've sworn they did but I'm having no luck.

By transparency I do not mean copying the forms color, I need it that when it overlays controls it doesn't show the white form color, but the control behind it[/QUOTE]

Set the background to transparent, that should work.

[diwako]

Not really a programming question, more like a Java Swing look and feel question.

Anyone knows a good L&F? So far the ones Google showed me are either offline or look... Rather old.

[Party Boy]

Just a quick question.

Does anybody know if the Kinect can detect if a player is moving?
Like I could use the Kinect to see if I am running on the spot, and if I am, I would move the player forward, using the Unity engine

[Tamschi]

[QUOTE=Over-Run;42550888]Just a quick question.

Does anybody know if the Kinect can detect if a player is moving?
Like I could use the Kinect to see if I am running on the spot, and if I am, I would move the player forward, using the Unity engine[/QUOTE]

It's possible, but really bad from a UX perspective. [URL="http://www.kickstarter.com/projects/1944625487/omni-move-naturally-in-your-favorite-game"]There's this one thing that lets you run forward while staying in place[/URL] using a Kinect iirc, but I don't see how it would work without some "peripheral".

You probably have to define the gestures you want to use yourself though, if there's no pre-built package.

[Party Boy]

So you can't really do it without another device such as the Omni?
I really don't know what I could do for this project

[Tamschi]

[QUOTE=Over-Run;42551433]So you can't really do it without another device such as the Omni?
I really don't know what I could do for this project[/QUOTE]

Well, you can recognize someone running in place because you can get the current pose at any moment, but I really doubt that adds to the gameplay.

Kinect also has a very significant lag.

[Richy13]

Im trying to write a logging class to behave like cout but that prints to both cout and a file, what is the best way to overload << in order for it to accept any kind of class as well as endl?

[ThePuska]

Derive it from ostream

[JazZ5109AI]

is there a way to pull data from an excel file and export each box into an array value without using a separate library in C#?

[Blueridge]

in c programming class, we got an assignment to calculate the harmonic sum of a number recursively. i'm very confident in this program working, but whenever i print the result i get an appcrash

code:

#include <stdio.h>

float harmonicSum(int num);

int main()
{
	int num;

	printf("%s", "Enter in a number and I will find the harmonicSum of it:");
	scanf("%d", num);

	float result = harmonicSum(num);
	printf("The harmonicSum of %d is %7f", num, result);
}

float harmonicSum(int num)
{
	if(num == 1)
		return 1.0;
	else
		return ((1/(float)num) + harmonicSum(num - 1));
}

[Jookia]

scanf("%d", num); should be scanf("%d", &num);

Because scanf takes a pointer to where the result is stored, otherwise you're passing an uninitialized int and it's going to try and use that as a memory exist, hence the segfault.

[mastersrp]

[QUOTE=Jookia;42557321]scanf("%d", num); should be scanf("%d", &num);

Because scanf takes a pointer to where the result is stored, otherwise you're passing an uninitialized int and it's going to try and use that as a memory exist, hence the segfault.[/QUOTE]

I would like to add to this by saying that when passing variables in C to functions, prefixing it with & allows the function to modify that variable. A good practice, as defined by id Software for Doom 3, was to use const for all immutable variables passed to a function. So any "read-only" variables should be passed as const.

[Blueridge]

[QUOTE=Jookia;42557321]scanf("%d", num); should be scanf("%d", &num);

Because scanf takes a pointer to where the result is stored, otherwise you're passing an uninitialized int and it's going to try and use that as a memory exist, hence the segfault.[/QUOTE]

annd of course i forget the ampersand, i knew it was going to happen one day

thanks for da help

[Tamschi]

[QUOTE=JazZ5109AI;42556480]is there a way to pull data from an excel file and export each box into an array value without using a separate library in C#?[/QUOTE]

Export the Excel table as .csv, then read it by splitting strings.

Either choose a separator that never appears in the table or handle escaped ones while loading.

There's also a managed Office SDK, but I don't know whether that qualifies/is installed with .NET. Probably not though.

[Quarternions]

Messing around with the tinythread lib which provides a constuctor that accepts a function pointer : (void*)(*aFunction)(void*)

I did some tests fine but with wrapping it in a class I can't get a member function to bind and get this error :

Error	2	error C2664: 'tthread::thread::thread(void (__cdecl *)(void *),void *)' : cannot convert parameter 1 from 'void (__thiscall TCPListener::* )(void *)' to 'void (__cdecl *)(void *)'	c:\users\quincy\documents\projects\project puppeteer\project puppeteer\tcplistener.cpp	70

I know its because its a class member but is there any way to work this out ?

[ZeekyHBomb]

[cpp]class TCPListener
{
//...
void MyFun();
//...
private:
static void TTMyFunCallback(void *const me) { reinterpret_cast<TCPListener*>(me)->MyFun(); }
};[/cpp]
And pass `this` as user-data (the void* parameter).

[benbb]

How the hell would I go about parsing JSON like this in C#?

[url]http://store.steampowered.com/api/appdetails/?appids=730[/url]

I've been trying to use JSON.NET and some other methods but I just can't seem to wrap my head around it.

Thanks in advance.

[Blade]

[QUOTE=benbb;42563358]How the hell would I go about parsing JSON like this in C#?

[url]http://store.steampowered.com/api/appdetails/?appids=730[/url]

I've been trying to use JSON.NET and some other methods but I just can't seem to wrap my head around it.

Thanks in advance.[/QUOTE]

What I did with the steamapi is deserialize the json into a JObject. Then I would deserialize the data field into an actual class object. Also using a C# class generator you don't have to do that much work.

                var obj = JsonConvert.DeserializeObject<JObject>(data);
                var resp = JsonConvert.DeserializeObject<AppDetailsDto>(obj["730"]["response"].ToString());

Not great(parses the string twice), but works.

// Generated by Xamasoft JSON Class Generator
// http://www.xamasoft.com/json-class-generator

using System;
using System.Collections.Generic;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace Steam
{

    public class PcRequirements
    {

        [JsonProperty("minimum")]
        public string Minimum { get; set; }
    }

    public class MacRequirements
    {

        [JsonProperty("minimum")]
        public string Minimum { get; set; }
    }

    public class PriceOverview
    {

        [JsonProperty("currency")]
        public string Currency { get; set; }

        [JsonProperty("initial")]
        public int Initial { get; set; }

        [JsonProperty("final")]
        public int Final { get; set; }

        [JsonProperty("discount_percent")]
        public int DiscountPercent { get; set; }
    }

    public class Sub
    {

        [JsonProperty("packageid")]
        public string Packageid { get; set; }

        [JsonProperty("percent_savings_text")]
        public string PercentSavingsText { get; set; }

        [JsonProperty("percent_savings")]
        public int PercentSavings { get; set; }

        [JsonProperty("option_text")]
        public string OptionText { get; set; }

        [JsonProperty("option_description")]
        public string OptionDescription { get; set; }
    }

    public class PackageGroup
    {

        [JsonProperty("name")]
        public string Name { get; set; }

        [JsonProperty("title")]
        public string Title { get; set; }

        [JsonProperty("description")]
        public string Description { get; set; }

        [JsonProperty("selection_text")]
        public string SelectionText { get; set; }

        [JsonProperty("save_text")]
        public string SaveText { get; set; }

        [JsonProperty("display_type")]
        public string DisplayType { get; set; }

        [JsonProperty("is_recurring_subscription")]
        public string IsRecurringSubscription { get; set; }

        [JsonProperty("subs")]
        public Sub[] Subs { get; set; }
    }

    public class Platforms
    {

        [JsonProperty("windows")]
        public bool Windows { get; set; }

        [JsonProperty("mac")]
        public bool Mac { get; set; }

        [JsonProperty("linux")]
        public bool Linux { get; set; }
    }

    public class Metacritic
    {

        [JsonProperty("score")]
        public int Score { get; set; }

        [JsonProperty("url")]
        public string Url { get; set; }
    }

    public class Category
    {

        [JsonProperty("id")]
        public string Id { get; set; }

        [JsonProperty("description")]
        public string Description { get; set; }
    }

    public class Genre
    {

        [JsonProperty("id")]
        public string Id { get; set; }

        [JsonProperty("description")]
        public string Description { get; set; }
    }

    public class Screenshot
    {

        [JsonProperty("id")]
        public int Id { get; set; }

        [JsonProperty("path_thumbnail")]
        public string PathThumbnail { get; set; }

        [JsonProperty("path_full")]
        public string PathFull { get; set; }
    }

    public class Webm
    {

        [JsonProperty("480")]
        public string 480 { get; set; }

        [JsonProperty("max")]
        public string Max { get; set; }
    }

    public class Movy
    {

        [JsonProperty("id")]
        public string Id { get; set; }

        [JsonProperty("name")]
        public string Name { get; set; }

        [JsonProperty("thumbnail")]
        public string Thumbnail { get; set; }

        [JsonProperty("webm")]
        public Webm Webm { get; set; }

        [JsonProperty("highlight")]
        public bool Highlight { get; set; }
    }

    public class Recommendations
    {

        [JsonProperty("total")]
        public int Total { get; set; }
    }

    public class Highlighted
    {

        [JsonProperty("name")]
        public string Name { get; set; }

        [JsonProperty("path")]
        public string Path { get; set; }
    }

    public class Achievements
    {

        [JsonProperty("total")]
        public int Total { get; set; }

        [JsonProperty("highlighted")]
        public Highlighted[] Highlighted { get; set; }
    }

    public class ReleaseDate
    {

        [JsonProperty("coming_soon")]
        public bool ComingSoon { get; set; }

        [JsonProperty("date")]
        public string Date { get; set; }
    }

    public class SupportInfo
    {

        [JsonProperty("url")]
        public string Url { get; set; }

        [JsonProperty("email")]
        public string Email { get; set; }
    }

    public class AppDetailsDto
    {

        [JsonProperty("type")]
        public string Type { get; set; }

        [JsonProperty("name")]
        public string Name { get; set; }

        [JsonProperty("steam_appid")]
        public string SteamAppid { get; set; }

        [JsonProperty("required_age")]
        public int RequiredAge { get; set; }

        [JsonProperty("controller_support")]
        public string ControllerSupport { get; set; }

        [JsonProperty("detailed_description")]
        public string DetailedDescription { get; set; }

        [JsonProperty("about_the_game")]
        public string AboutTheGame { get; set; }

        [JsonProperty("supported_languages")]
        public string SupportedLanguages { get; set; }

        [JsonProperty("header_image")]
        public string HeaderImage { get; set; }

        [JsonProperty("website")]
        public string Website { get; set; }

        [JsonProperty("pc_requirements")]
        public PcRequirements PcRequirements { get; set; }

        [JsonProperty("mac_requirements")]
        public MacRequirements MacRequirements { get; set; }

        [JsonProperty("linux_requirements")]
        public object[] LinuxRequirements { get; set; }

        [JsonProperty("developers")]
        public string[] Developers { get; set; }

        [JsonProperty("publishers")]
        public string[] Publishers { get; set; }

        [JsonProperty("price_overview")]
        public PriceOverview PriceOverview { get; set; }

        [JsonProperty("packages")]
        public string[] Packages { get; set; }

        [JsonProperty("package_groups")]
        public PackageGroup[] PackageGroups { get; set; }

        [JsonProperty("platforms")]
        public Platforms Platforms { get; set; }

        [JsonProperty("metacritic")]
        public Metacritic Metacritic { get; set; }

        [JsonProperty("categories")]
        public Category[] Categories { get; set; }

        [JsonProperty("genres")]
        public Genre[] Genres { get; set; }

        [JsonProperty("screenshots")]
        public Screenshot[] Screenshots { get; set; }

        [JsonProperty("movies")]
        public Movy[] Movies { get; set; }

        [JsonProperty("recommendations")]
        public Recommendations Recommendations { get; set; }

        [JsonProperty("achievements")]
        public Achievements Achievements { get; set; }

        [JsonProperty("release_date")]
        public ReleaseDate ReleaseDate { get; set; }

        [JsonProperty("support_info")]
        public SupportInfo SupportInfo { get; set; }
    }

}

[benbb]

I found that generation website but didn't know how to go about it. Thanks! I'll post back if it works.

[editline]18th October 2013[/editline]

Fuck yeah! I created this class using json2csharp.com (I stripped out the 'data' part of the Steam JSON).

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Game_Launchpad
{
    class steam
    {
        public class PcRequirements
        {
            public string minimum { get; set; }
        }

        public class MacRequirements
        {
            public string minimum { get; set; }
        }

        public class PriceOverview
        {
            public string currency { get; set; }
            public int initial { get; set; }
            public int final { get; set; }
            public int discount_percent { get; set; }
        }

        public class Sub
        {
            public object packageid { get; set; }
            public string percent_savings_text { get; set; }
            public int percent_savings { get; set; }
            public string option_text { get; set; }
            public string option_description { get; set; }
        }

        public class PackageGroup
        {
            public string name { get; set; }
            public string title { get; set; }
            public string description { get; set; }
            public string selection_text { get; set; }
            public string save_text { get; set; }
            public string display_type { get; set; }
            public string is_recurring_subscription { get; set; }
            public List<Sub> subs { get; set; }
        }

        public class Platforms
        {
            public bool windows { get; set; }
            public bool mac { get; set; }
            public bool linux { get; set; }
        }

        public class Metacritic
        {
            public int score { get; set; }
            public string url { get; set; }
        }

        public class Category
        {
            public string id { get; set; }
            public string description { get; set; }
        }

        public class Genre
        {
            public string id { get; set; }
            public string description { get; set; }
        }

        public class Screenshot
        {
            public int id { get; set; }
            public string path_thumbnail { get; set; }
            public string path_full { get; set; }
        }

        public class Webm
        {
            public string __invalid_name__480 { get; set; }
            public string max { get; set; }
        }

        public class Movie
        {
            public object id { get; set; }
            public string name { get; set; }
            public string thumbnail { get; set; }
            public Webm webm { get; set; }
            public bool highlight { get; set; }
        }

        public class Recommendations
        {
            public int total { get; set; }
        }

        public class Highlighted
        {
            public string name { get; set; }
            public string path { get; set; }
        }

        public class Achievements
        {
            public int total { get; set; }
            public List<Highlighted> highlighted { get; set; }
        }

        public class ReleaseDate
        {
            public bool coming_soon { get; set; }
            public string date { get; set; }
        }

        public class SupportInfo
        {
            public string url { get; set; }
            public string email { get; set; }
        }

        public class RootObject
        {
            public string type { get; set; }
            public string name { get; set; }
            public string steam_appid { get; set; }
            public int required_age { get; set; }
            public string controller_support { get; set; }
            public string detailed_description { get; set; }
            public string about_the_game { get; set; }
            public string supported_languages { get; set; }
            public string header_image { get; set; }
            public string website { get; set; }
            public PcRequirements pc_requirements { get; set; }
            public MacRequirements mac_requirements { get; set; }
            public List<object> linux_requirements { get; set; }
            public List<string> developers { get; set; }
            public List<string> publishers { get; set; }
            public PriceOverview price_overview { get; set; }
            public List<object> packages { get; set; }
            public List<PackageGroup> package_groups { get; set; }
            public Platforms platforms { get; set; }
            public Metacritic metacritic { get; set; }
            public List<Category> categories { get; set; }
            public List<Genre> genres { get; set; }
            public List<Screenshot> screenshots { get; set; }
            public List<Movie> movies { get; set; }
            public Recommendations recommendations { get; set; }
            public Achievements achievements { get; set; }
            public ReleaseDate release_date { get; set; }
            public SupportInfo support_info { get; set; }
        }
    }
}

Then using NewtonSoft's JSON.NET library I just used this code:

                //Download JSON
                string json = wc.DownloadString("http://store.steampowered.com/api/appdetails/?appids=" + steamid.ToString());

                //Do something with it here.
                var obj = JsonConvert.DeserializeObject<JObject>(json);
                var resp = JsonConvert.DeserializeObject<steam.RootObject>(obj[steamid]["data"].ToString());

Then you can just use the resp object to get whatever info you need. Hell yeah! I wish it was as simple as it is in PHP but I guess it'll have to do.

[Richy13]

I keep my uni work under git on a usb, but its becoming really slow to compile and suck due to usb speed. I dont want to keep my ssh key on the uni computer as it could fall into the wrong hands so I was wonderng if git allows you to have a setup such as:

BitBucket Repo <- Master

USB Repo <- USB

UniPC Repo <- UniPC

Edit stuff on UniPC or USB

UniPC push<->pull to USB

Only USB can push<->pull Master

I know the hole purpose of git is to allow each local repo to act as a server, but I wasnt sure if this kind of thing would be allowed

[ZeekyHBomb]

Yeah, that should be possible.
But I think you can also specify a path to the private key on your USB stick for ssh to use. Look at ssh-add.

[Tamschi]

I think you can just add a local path as remote and push/pull that way.
At least it works like this with Hg.

Keeping the USB-repo up to date isn't a bad idea even if you push directly to Github, you never know if/when you're without Internet.