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Topics - Leandro

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1
SFML projects / Scrolling Shooter
« on: November 19, 2008, 04:27:05 pm »
Hi there guys, I'm working since 3 days ago in this project. It's a basic scrolling shooter like 1942.

I've been having some troubles with the Scale function (for making the deep-sensation, so you can go towards the sky or towards the earth, in 5 different "height levels", and so on you will get 5 different battlegrounds at the same time). Anyway, here's what I've done.

Since my internet conexion sucks, I had to split the actual compressed file into "sections" so that I can upload them easierly.

http://leoostera.googlepages.com/Release_Bin.rar
http://leoostera.googlepages.com/Release_GFX.rar
http://leoostera.googlepages.com/Release_SFX.rar
http://leoostera.googlepages.com/Release_Music.rar

The music of the game was composed by me, transcribed to Guitar Pro, exported to WAV and then converted to Ogg with Audacity. And the effects were recorded with a microphone and Audacity.

The sprites were taken from Rayden, although I modified them a bit to add the "turbo" and "slowdown" thing. Lastly, I made the bullet and the mouse sprite myself  :roll: ...yeah, they suck :P

Ok. Controls are WASD for moving left, right, forward and backward. Left click shots.

I will implement mouse aiming limited by angles for the cannons and a "sniper" system so that you can aim with both cannons to the same place at the time.

Also I'm trying to figure out how does Scale function work so that I can make that "height level" sensation/effect.

Well, thanks for everything. Any feedback is welcomed :D

2
Window / Best way to get smooth input
« on: November 16, 2008, 08:05:09 pm »
HI there guys, it's the first time I use this API. I come from SDL (3 years, ppff, lotta time) and got bored of doing "low-level" stuff...(not really low, but lower than this for sure).

It's been no more than 12 hours since I've installed SFML and I'm making a Scrolling Shooter, and this API is damn easy to use...I got used really fast. If you aimed that L, then two thumbs up for you  :D

Ok, right to the question:

I ran a while loop with the GetEvent(mEvent) thing, "similar" to SDL's way

Code: [Select]

    while (mApp.GetEvent(mEvent))
        {
        if ((mEvent.Type == sf::Event::Closed) || ( (mEvent.Type == sf::Event::KeyPressed) && (mEvent.Key.Code == sf::Key::Escape) ) )
            Quit();

        //Step functions calls
        mPlayer.Step(mEvent);

        //Drawing stuff
        mApp.Draw(mPlayer.Get());

        mApp.Display();
        }


As you can see, the Step method of the mPlayer instance (actually it's a "Player" class instance) asks for a mEvent.  The Step source is right below:

Code: [Select]

//LEFT
if ( (Ev.Type==sf::Event::KeyPressed)  && (Ev.Key.Code == sf::Key::A) )
    {
    mCurrentImg = 1;
    mMotionX = -5.0f;
    }

//RIGHT
else if ( (Ev.Type==sf::Event::KeyPressed)  && (Ev.Key.Code == sf::Key::D))
    {
    mCurrentImg = 2;
    mMotionX = 5.0f;
    }

//DOWN
else if ( (Ev.Type==sf::Event::KeyPressed)  && (Ev.Key.Code == sf::Key::S) )
    {
    mMotionY = -1.0f;
    }

//UP
else if ( (Ev.Type==sf::Event::KeyPressed)  && (Ev.Key.Code == sf::Key::W))
    {
    mMotionY = 2.5f;
    }
else
    {
    mCurrentImg = 0;
    mMotionX = 0.0f;
    mMotionY = 0.0f;
    mScaleFactor = 0.0f;
    }

mSprite.Move(mMotionX,mMotionY);
mSprite.Scale(mScaleFactor,mScaleFactor);


But the movement I get is not "smooth". By "smooth" I mean that once you press the key you have to wait for less than a second for the Sprite to start moving and you can't just get a nice bidirectional movement when you press A and W or A and S and so on...

So my question is what the heck I'm doing wrong that doesnt let me get that smooth, nice and sweet movement I'm trying to get?

Thanks beforehand

L

PD: Nevermind the Sprite.Scale & mCurrentImg things, I am planning to do some multidirectional-like effect...and I will upload progress =)

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