What Are You Working On? V13

[Samperson123]

I've been programming on my calculator again. The memories... :3:

I made a simple program that adds vectors for my physics class. It accepts both vectors in the forms of their x and y components and as an angle with magnitude, and it outputs them as all of those. Once we learn about vector multiplication I'll add that in too.

[Skipcast]

[QUOTE=Darwin226;25322326]And you get that from his SFML screenshot?[/QUOTE]

Eh, not sure why, but i did. :v:

[r4nk_]

[QUOTE=SamPerson123;25322533]I've been programming on my calculator again. The memories... :3:

I made a simple program that adds vectors for my physics class. It accepts both vectors in the forms of their x and y components and as an angle with magnitude, and it outputs them as all of those. Once we learn about vector multiplication I'll add that in too.[/QUOTE]

Vector multiplication is easy: x*scalar, y*scalar, z*scalar

[NorthernGate]

Working on a Framework/Engine ( fuck terminology ) using OpenGL with SFML as the Context maker/fetcher/I don't care.

[img]http://imagebin.ca/img/vynH5lrT.png[/img]
[i]The only Reason the FPS is so low is because ZScreen likes to pause my program when it takes a screenshot, it's normally running at around 2000 FPS on my craptop[/i]

I'm trying to make everything simple and easy like SFML but a lot more flexible and configurable.

So far to create that screenshot I used:

[cpp]
#include "Context.hpp"
#include "Object.hpp"

int main()
{
// Create The OpenGL Context ( caption, width, height, fullscreen = false, antialiasing = 0 )
Context Test( ">implying i have a caption", 800, 600 );

// Create an Object and use the helper function Circle( x, y, radius, subdivisions = 16, innerColor = white, outercolor = white ) to make the Circle
Object Demo; Demo.Circle( 250, 250, 128, 32 );

// Start Game Loop, Run( r = 0, g = 0, b = 0 )
while( Test.Run( 0, 0, 0 ) )
{
// Mode Transformation, Up draws the vertexs only
if( Test.Key( sf::Key::Up ) ) Demo.SetMode( mPoint );
// Down draws the lines
else if( Test.Key( sf::Key::Down ) ) Demo.SetMode( mLineStrip );
// Nothing draws the shape + textures
else Demo.SetMode( mFan );

// Set Position to Mouse and Draw
Demo.SetPosition( (float)Test.Mouse.X, (float)Test.Mouse.Y );
Demo.Draw();

// Output everything
Test.Display();
}
}
[/cpp]

[SyntheticGod]

Is it a 3D engine? I'm still working on learning my C++, but it's getting harder to learn since I've reached a point where I need more explanation than I can find. All I know are simple I/O functions.

[Vbitz]

[img]http://dl.dropbox.com/u/2014606/Testing-2010-10-10_15.48.25.png[/img]
A little project I have been working on in C# and LuaInterface with libtcod as the renderer.

[NorthernGate]

[QUOTE=Xion12;25324369]Is it a 3D engine? I'm still working on learning my C++, but it's getting harder to learn since I've reached a point where I need more explanation than I can find. All I know are simple I/O functions.[/QUOTE]

It can be, but I'm mainly focusing on easing the 2D Process. But I know what you mean, the amount of tutorials and information I need and the amount I can find are two very separate things.

[ROBO_DONUT]

[QUOTE=Matthew0505;25324505]I think he means a vector multiplied by another vector, not scalar multiplication, which is multiplying the corresponding components and adding them together
e.g 2D
[x1, y1] * [x2, y2] = x1x2 + y1y2
e.g. 3D
[x1, y1, z1] * [x2, y2, z2] = x1x2 + y1y2 + z1z2[/QUOTE]

There's two ways to "multiply" two vectors. What you've listed is the dot-product. The other method is the cross-product.
They give two very different answers, so you have to specify one or the other.

[r4nk_]

[QUOTE=Matthew0505;25324505]I think he means a vector multiplied by another vector, not scalar multiplication, which is multiplying the corresponding components and adding them together
e.g 2D
[x1, y1] * [x2, y2] = x1x2 + y1y2
e.g. 3D
[x1, y1, z1] * [x2, y2, z2] = x1x2 + y1y2 + z1z2[/QUOTE]

There are actually 2 ways to 'multiply' a vector by another vector, the dot product like you wrote above and the cross product.

[b]Edit:[/b]
Ninja'd :colbert:

Component wise vector multiplication can be useful sometimes too. But is pretty useless for vector maths.

[sim642]

[QUOTE=NorthernGate;25323968]Working on a Framework/Engine ( fuck terminology ) using OpenGL with SFML as the Context maker/fetcher/I don't care.

[img_thumb]http://imagebin.ca/img/vynH5lrT.png[/img_thumb]
[i]The only Reason the FPS is so low is because ZScreen likes to pause my program when it takes a screenshot, it's normally running at around 2000 FPS on my craptop[/i]
[/QUOTE]

Why do you need 2000 FPS?

[NorthernGate]

[QUOTE=sim642;25326331]Why do you need 2000 FPS?[/QUOTE]

So when I have 5000 Faded and Textured circles running on screen at once the game is still playable?

[killman]

[IMG]http://imagebin.ca/img/gy8x1Pmt.png[/IMG]

Just a little pet project to correctly implement a point sprite shader of sorts using the OpenGL 3.0 core and SFML.

Now I need to find another stupid project to do.

And does anyone know a good inkscape tutorial?
My vector graphics skill need some work.

[sim642]

[QUOTE=NorthernGate;25326519]So when I have 5000 Faded and Textured circles running on screen at once the game is still playable?[/QUOTE]

You could set the FPS limit to 60. There's no need to render 2000 FPS when most monitors only are 60hrz as well. It's a waste of resources. It won't make you game any slower.

My GPU made some strange sound as well when I had my SFML program running at extreme framerate, but after limiting it that sound disappeared.

SFML has a function for that : [url]http://www.sfml-dev.org/documentation/1.6/classsf_1_1Window.htm#5544031f1d2965c00532fb5660763f33[/url]

[turb_]

Got a cube rendering with in 3D with GDI+:

[img]http://ahb.me/D8A[/img]

The camera is moving back and forth as a sine curve, (it's coordinates are basically {0, 0, sin(time)})

There's a bug to do with my trigonometry where the points like to cross over if the camera zooms in too much:

[img]http://ahb.me/D8H[/img]

[Vbitz]

[img]http://dl.dropbox.com/u/2014606/SS-2010-10-10_20.49.23.png[/img]
More Progress on my C# project, there is also a working hook system to gather frame data and key info but this screen will not show this.

[turb_]

Made the camera fly around in all directions :v:

[media]http://www.youtube.com/watch?v=71zIlq5d4w4[/media]

[url]http://anyhub.net/file/gdi_stuff.exe[/url]

[ZeekyHBomb]

[QUOTE=Xion12;25324369]Is it a 3D engine? I'm still working on learning my C++, but it's getting harder to learn since I've reached a point where I need more explanation than I can find. All I know are simple I/O functions.[/QUOTE]

Effective C++ by Scott Meyers is an awesome intermediate book IMO.
It assumes that you know the basics of C++, shows some pitfalls and gives some neat advice on .. well how to write effective C++ :P
You should also look at the STL (it's part of the C++ standard library) and Boost (kinda like an unofficial extension to the standard library). You can find documentations online.

[Darwin226]

[QUOTE=turb_;25327182]Made the camera fly around in all directions :v:

[media]http://www.youtube.com/watch?v=71zIlq5d4w4[/media]

[url]http://anyhub.net/file/gdi_stuff.exe[/url][/QUOTE]

The FOV is probably a bit too wide. You can see the edges getting closer together when they are near the borders.

[turb_]

[QUOTE=Darwin226;25327836]The FOV is probably a bit too wide. You can see the edges getting closer together when they are near the borders.[/QUOTE]

IIRC the field of view is 2 radians each side, so 4 in total.

[editline]08:30PM[/editline]

Considering that's more than 180 deg in total, it probably is a bit wide.

[Jallen]

[QUOTE=sim642;25326985]You could set the FPS limit to 60. There's no need to render 2000 FPS when most monitors only are 60hrz as well. It's a waste of resources. It won't make you game any slower.

My GPU made some strange sound as well when I had my SFML program running at extreme framerate, but after limiting it that sound disappeared.

SFML has a function for that : [url]http://www.sfml-dev.org/documentation/1.6/classsf_1_1Window.htm#5544031f1d2965c00532fb5660763f33[/url][/QUOTE]

Universally capping an entire Engine/Frameworks FPS to 60 is the stupidest thing I have ever heard for so many reasons.

[Darwin226]

Oh you and your input lag...

[ZeekyHBomb]

It's as simple as that the enduser of the engine/framework should be able to decide.

[Layla]

[QUOTE=Jallen;25328023]Universally capping an entire Engine/Frameworks FPS to 60 is the stupidest thing I have ever heard for so many reasons.[/QUOTE]

Calling a few classes anything but a few classes is even more stupid.

[Pj The Dj]

[QUOTE=layla;25328604]Calling a few classes anything but a few classes is even more stupid.[/QUOTE]

Are you ever going to get over that?

[Dlaor-guy]

[QUOTE=Jallen;25328023]Universally capping an entire Engine/Frameworks FPS to 60 is the stupidest thing I have ever heard for so many reasons.[/QUOTE]
Explain why you would ever need more than 60 fps.

[CarlBooth]

Games run 2 parts, thinking and drawing.

The 'thinking' part needs to run as fast as possible, but the 'drawing' part can be capped.

I think that's what's confusing people.

[Darwin226]

The thinking part also doesn't need to run as fast as possible in most cases. It sure makes everything easier when you don't have to multiply every increment with gametime.

[turb_]

[QUOTE=Dlaor-guy;25328784]Explain why you would ever need more than 60 fps.[/QUOTE]

75hz screens

[Blade]

What is this shit, opened someone elses project and it moved all my windows around. And the changes stayed when I opened one of my own project. FUCK

Does the following make sense?

[quote] .method private hidebysig static void Main(string[] args) cil managed
{
.entrypoint
// Code size 22 (0x16)
.maxstack 1
.locals init ([0] class [mscorlib]System.Exception ex)
IL_0000: call void quicktest2.Program::FunctionThatMightFail()
IL_0005: leave.s IL_0015

IL_0007: stloc.0
IL_0008: ldloc.0
IL_0009: callvirt instance string [mscorlib]System.Object::ToString()
IL_000e: call void [mscorlib]System.Console::Write(string)
IL_0013: leave.s IL_0015

IL_0015: ret
IL_0016:
// Exception count 1
[b].try IL_0000 to IL_0007 catch [mscorlib]System.Exception handler IL_0007 to IL_0015[/b]
} // end of method Program::Main[/quote]

Mono.Cecil stores the TryEnd as "IL_0007". Does that make any sense to do? Shouldn't it be "IL_0005"? I mean why would TryEnd be an instruction that isn't even in the Try?

Edit:
(Not gonna make sense unless you have used Mono.Cecil)

[Jallen]

[QUOTE=Dlaor-guy;25328784]Explain why you would ever need more than 60 fps.[/QUOTE]

Cap framerate at 60fps = input lag.

[editline]01:13PM[/editline]

[QUOTE=CarlBooth;25328892]Games run 2 parts, thinking and drawing.

The 'thinking' part needs to run as fast as possible, but the 'drawing' part can be capped.

I think that's what's confusing people.[/QUOTE]

If you run the thinking part as fast as possible you can get frame deltatimes of <1ms, and since the computer can't actually measure time that accurately I would have thought you'd need to cap the thinking at 1000fps.