Messages

1

General / Re: Moving a sprite without holding a key

« on: June 17, 2012, 02:11:49 pm »

It's working now, thanks.   Also, I'll do some research about delta time.

2

General / Re: Moving a sprite without holding a key

« on: June 16, 2012, 08:39:17 pm »

I will post the part of my main.

while(window.isOpen)

//Events

        if(keyboard.isKeyPressed(Keyboard::D))
        {
            posPlayer = player.movePlayerShip(true, false, false, false, posPlayer);
        }

        if(keyboard.isKeyPressed(Keyboard::A))
        {
            posPlayer = player.movePlayerShip(false, true, false, false, posPlayer);
        }

        if(keyboard.isKeyPressed(Keyboard::W))
        {
            posPlayer = player.movePlayerShip(false, false, true, false, posPlayer);
        }

        if(keyboard.isKeyPressed(Keyboard::S))
        {
            posPlayer = player.movePlayerShip(false, false, false, true, posPlayer);
        }

        if(keyboard.isKeyPressed(Keyboard::Space))
        {
            posBall = player.shoot(posBall, posPlayer, pressedSpace);
            pressedSpace = true;
        }
        else if(canFollow)
        {
            posBall.y = posPlayer.y+16;
            posBall.x = posPlayer.x+32;
        }


//Render and position updates

 

Only look the code for the space key. I call the function shoot, which is this function:

Vector2f Jeu::shoot(Vector2f posBall, Vector2f posPlayer, bool pressed)
{
    hideBall = false;
    canFollow = false;

    posBall.y -= 2;

    if(posBall.y < 0)
    {
        isMoving = true;
        posBall.y = posPlayer.y+16;
        posBall.x = posPlayer.x+32;
        pressed = false;
    }

    return posBall;
}

When I press space and holding it, the ball is moving toward the y : 0 position. If I don't hold it, it returns to the player position. Also, when I try to do a loop, the game crashes.

So, one question: Can I have some help, yes or no?
Thanks.

3

General / Re: Moving a sprite without holding a key

« on: June 16, 2012, 08:02:56 pm »

Yeah, but it is less active, and I think my English is ok for posting here. 

So, I will try to be more clear:

What I expect: I press space, and the ball is propulsed to y: 0, without holding space, like in a normal game.

What is not working: I need to hold space for the ball to move.

My question is : How to move a sprite without holding a key? I tried loops, and currently I'm trying to do it with booleans. I think that I really need loops, but when I use them, the game is crashing. And I repeat, this function is called in the main loop, when I press the space key.

4

General / Re: Moving a sprite without holding a key

« on: June 16, 2012, 07:43:07 pm »

Thanks for your answer.

I guess the function is okay but you're problem is that you call it just once

I call it in the main loop, I don't call it once.

You see this isn't GameMaker or some other simple enviroment, you're code with pure C++ now.

Yes... I know...  Why are you saying that?

Although we're willing to help I don't think someone will take the time to basically program all the logic you need for whatever you do

I don't asked someone to program all the logic for me, I just have a question and I don't know how to resolve my problem.

5

General / Moving a sprite without holding a key

« on: June 16, 2012, 03:24:06 pm »

Hello!

I need help for a little problem in my game. I want to shoot a ball when I press space, but I need to hold it to make the ball move. This is the function that I wrote for it, which is not working :
 

Vector2f Jeu::shoot(Vector2f posBall, Vector2f posPlayer)
{
    hideBall = false;
    canFollow = false;

    posBall.y -= 2;

    if(posBall.y < 0)
    {
        isMoving = true;
        posBall.y = posPlayer.y+16;
        posBall.x = posPlayer.x+32;
    }

    return posBall;
}

I tried a loop but this function is situated in the main loop, and it crashes. I use SFML 2.0 RC. Also, sorry for my English, I know it is not perfect. 

Thanks!