Messages

16

Audio / sf::Music hangs the app with PhysFS

« on: December 22, 2017, 01:34:49 pm »

Hello! I am working on a game and I load all resources from zip file using PhysFS. I am using this class from SFML wiki: https://github.com/SFML/SFML/wiki/Source:-PhysicsFS-Input-Stream

And I have noticed strange behaivour: if I open PhysFsStream once, open music from it, then everything is OK. But if I do this again (to change current music) -  my application hangs (100% of CPU core).

Minimal code (all variables are class members):

//GameState

//init() - called once when game state is shown up
pfsStream.open("music/1.ogg");
music.openFromStream(pfsStream);

music.play();

//input() - called on input.
music.stop();
pfsStream.open("music/2.ogg");
music.openFromStream(pfsStream);

music.play();
 

My PhysFS setup is fully wokrable (I use the same way to load textures, sounds, they are all working and loaded correctly). 

After debugging application for some time, I ended on this code in sf::SoundStream:

void SoundStream::stop()
{
    // Request the thread to terminate
    {
        Lock lock(m_threadMutex);
        m_isStreaming = false;
    }
...
 

I wil really appreciate any help concerning this topic, maybe newer version of PhysFS stream or any possible fixes.

17

SFML projects / Re: R-Type 2D shoot'em up (C++17)

« on: December 14, 2017, 09:14:27 pm »

Looks nice!

I really like that "sci-fi" GUI. Waiting to see gameplay video

18

SFML projects / Re: SFML multicolor text class

« on: December 10, 2017, 11:41:35 am »

Wow, haven't found that! Thanks

19

SFML projects / Re: SFML multicolor text class

« on: December 09, 2017, 09:11:29 pm »

Well, it just satisfies my needs, so I didn't think about bb code or streams so. 

20

SFML projects / SFML multicolor text class

« on: December 09, 2017, 07:51:27 pm »

Hello.

In my project I really needed multicolor text, for showing info about game objects and chat text, like this:

Price: 2500 Gold

or

Damage: 100-120

But I didn't found a solution online, so I wrote one by myself.
Usage:

Basically, this is just a copy of original sf::Text class with one modification in ensureGeometryUpdate method.

When setting Text string, you can specify new text color using % character (like printf):

FText text;
text.setFont(yourfont);
text.setPosition(100,100);
text.setString("%0Format%2ted %3text");
 

which will draw:

Formatted text

Escaping % is done by writing two %:

test.setString("%1Damage: %2100 %%");
 

Damage: 100 %

Character-color pair is translated in sf::Color FText::getColorForChar(char c):

sf::Color FText::getColorForChar(char c) {
        switch (c)
        {
                case '0':
                        return sf::Color::Black;
                case '1':
                        return sf::Color::White;
                case '2':
                        return sf::Color::Red;
                case '3':
                        return sf::Color::Green;
                case '4':
                        return sf::Color::Blue;
                case '5':
                        return sf::Color::Yellow;
                case '6':
                        return sf::Color::Magenta;
                case '7':
                        return sf::Color::Cyan;
                default:
                        return sf::Color::Black;
        }
}
 

You can expand number of available colors by adding new cases to this method.

Code:
Header: https://gist.github.com/MrOnlineCoder/579ddc7c513a8fc6f5b024aa8b43ffbb
Source: https://gist.github.com/MrOnlineCoder/69a3bd3e18e2958526b6bac14dd8d0c9

I am open to any suggestions or comments.

21

SFML projects / Re: AchBall

« on: October 08, 2017, 07:53:20 pm »

Link for demo version or something please? 

22

SFML projects / Re: Made a flight simulator with infinite procedural terrain.

« on: July 31, 2017, 08:08:22 pm »

Good job! If there was a aircraft machine gun, rocket launcher and some enemies, it would be great and fun! 

23

SFML projects / Re: Dispersio 2

« on: June 29, 2017, 12:54:05 pm »

Looks very nice! I like this inventory Good luck, hope it will be interesting game! Will you have a story/plot in this game?

24

SFML projects / Re: [DOWNLOAD] Pointless Wars - [Turn-Based Pointless Strategy]

« on: June 21, 2017, 09:33:31 am »

Very nice graphics and animations! However, I encountered a game crash on my Windows 7 x64, played Singleplayer quick game and in the middle of the game "Program PointlessWars.exe stopped working...."

25

SFML projects / Re: It Usually Ends In Nuclear War

« on: June 19, 2017, 11:16:29 pm »

That looks so cool and nice! Good luck in development! Hope "it will end in enjoyable game" (not a nuclear war ) How do you make this "terra incognita" effect? (unexplored areas are not shown)

26

SFML projects / Redstay - simple hobby 2D Platformer

« on: June 14, 2017, 12:31:35 am »

Hello  Last week I made a simple platformer on SFML for educational purposes.

Controls:

- A and D to move
- W to jump
- E to use magnet
- Enter in main menu to start new game

Game objects:
key - required to enter next level
teleport - teleports you to another position
time ray - slows down the time (useless )
magnet - pick it up to change gravity

Boss fight tactic:
avoid projectiles using magnet and jump on his head when he is moving

Tools used:
Visual Studio 2012
SFML 2.4.2
Tiled Map Editor
Paint/Photoshop
Audacity

Credits:
MrOnlineCoder (me) - creator, programmer, level designer
Eric Matyas and Kevin MacLeod - music

Thanks to Laurent Gomila for such useful library, of course!   

Download: https://github.com/MrOnlineCoder/Redstay/releases/download/1.0.0/Redstay.by.MrOnlineCoder.zip

GitHub: https://github.com/MrOnlineCoder/Redstay

(click to show/hide)

P.S. Sorry if your eyes started bleeding after reading the code or watching game graphics, this is my hobby project which has bad design and low-quality code somewhere 

27

Feature requests / addColor method

« on: June 11, 2017, 03:57:12 pm »

Hello. In game, I often use some "flash" effects, or fading animations, where I change sprite/shape color like this:

sf::Color color = sprite.getColor();
color.a++;
sprite.setColor(color);
 

It will be very nice and useful if addColor method exists:

sprite.addColor(0,0,0,1);
 

28

General / Creating open-source game engine

« on: May 28, 2017, 03:41:18 pm »

Hello. I have a question: how should I release game engine for public use? Should I release source code, so users will build it and link with their project, or should they just make a file which describes the game and it's resources, so user will run the engine and then it will load the game description file (like GoldSrc, you run hl -game >game folder>), or should I do it in another way?

Thanks.

29

SFML projects / sf::Coach - header-only extension for managing animations

« on: April 05, 2017, 10:10:41 pm »

Hello. I came here to share my extension - sfCoach. I created it for personal needs, but maybe it will be useful for someone. So it helps you to animate objects.

Short documentation
There are 2 main classes: Animation and Coach in sfCoach namespace. The first one is abstract calss and has an update() method. The second one is just a simple container. Let's create a circle:

sf::CircleShape shape(50);
shape.setPosition(150, 150);
shape.setFillColor(sf::Color::Green);

Now, you need to create instance of Coach class:

sfCoach::Coach coach;

Also, you should call Coach update() method every frame:

while (window.isOpen) {
  //Handle events....
 

  coach.update();

  window.clear();

  window.display();
}

Now you can animate your objects. You can animate: Sprite, Text, CircleShape, RectangleShape. Currently, there are 3 types of animation: DisplayAnimation, FadeAnimation, MoveAnimation.

DisplayAnimation hides or shows the target after specified amount of time.
FadeAnimation fades the target in or out.
MoveAnimation moves object from point A to point B (interpolation).

Creating animation (for example):

sfCoach::DisplayAnimation hide(sfCoach::createTarget(shape), 3.2f); //3.2f is delay in seconds after which shape will be hidden

sfCoach::createTarget is a factory method. It is overloaded for most drawables to create universal animatable targets.

The last step is simple: play it!

coach.playAnimation(&hide);

You can find example and source code in GitHub repository:

https://github.com/MrOnlineCoder/sfCoach

Thanks to therocode for factory methods idea

30

SFML projects / Re: HeedJet

« on: March 20, 2017, 03:35:12 pm »

Very nice!  Waiting for download link!