Messages

1

Graphics / Extending the Sprite class?

« on: May 20, 2010, 05:35:26 pm »

Thank you!  That's exactly what was wrong!

I know about reference... but, like I said, my C++ is really rusty, and when you don't have to worry about that stuff (Python!) it sorta gets lost.

Thanks again!

2

Graphics / Extending the Sprite class?

« on: May 20, 2010, 05:51:10 am »

Hello!

I'm working on a basic platformer, trying to get used to using C++ instead of Python, and I was going to make a tile-based system.

I had no problem creating a two-dimensional array of Sprites and drawing those onto the screen.  It's when I started to try and create a "Tile" class to have a bit more functionality that I started running into problems.

My C++ is pretty rusty, but I think that I'm doing everything right in terms of C++ syntax.  I want to create my "Tile" class and make it extend Sprite.  I assumed that I should be able to simply call renderwindow.Draw(someTile) and that it would correctly draw things.  

Here is my tile class:

Code: [Select]

#ifndef TILE_H_INCLUDED
#define TILE_H_INCLUDED

#include <SFML/Graphics.hpp>

class Tile : public sf::Sprite{
    public:
        Tile() : sf::Sprite(), solid(false){};

        Tile(sf::Image img, sf::Vector2f pos, bool sol) : sf::Sprite(img, pos), solid(sol){};

        bool solid;

};
#endif // TILE_H_INCLUDED

However, every time I try to draw a tile, it draws the correct size (in this case the image is 32x32) but all of the pixels are always white!  

I'm creating my tile object like this:

Code: [Select]

Tile test(tileset[1], sf::Vector2f(0,0), true);
And drawing it like this:

Code: [Select]

window.Draw(test);

tileset is an array of Images, this seems to be working correctly, because if I just create a Sprite from tileset[1] it displays correctly.

Am I doing something wrong?  Should I just include a Sprite in my Tile class, instead of extending the Sprite class?  

Thanks!

-Sam