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Author Topic: My texture holder gets deleted although still in scope  (Read 271 times)

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affenmehl8

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My texture holder gets deleted although still in scope
« on: June 13, 2019, 04:37:30 pm »
So I'm new to SFML. I read a lot of post, but I really  don't get it.
I wrote an texture holder:
Quote
class tile_texture_holder {
private:
   sf::Texture tx;
public:
   tile_texture_holder(type a) {
      switch (a) {
      case type::desert:
         tx.loadFromFile("C:/Users/Andreas/source/repos/conquer/Media/desert.png");
         break;
      case type::grass:
         tx.loadFromFile("C:/Users/Andreas/source/repos/conquer/Media/grass.png");
         break;
      case type::mountain:
         tx.loadFromFile("C:/Users/Andreas/source/repos/conquer/Media/mountain.png");
         break;
      case type::water:
         tx.loadFromFile("C:/Users/Andreas/source/repos/conquer/Media/water.png");
         break;
      }
   }
   sf::Texture ret_texture() {
      return tx;
   }

   ~tile_texture_holder() {
      std::cout << "///////////////////////HOLDER DELETED!!!/////////////////////" << std::endl;
   }
};

And I tried to load a sprite with it in different ways....
For example:
Quote
tile_texture_holder t(type::desert);
      sf::Sprite s;
      s.setTexture(t.ret_texture());
(in the same function, where I draw the sprite)
I always get the white box being drawn. And I really dont get why the texture_holder is getting deleted.
BTW type is an enum.

I hope somebody can help me solve my issue!

eXpl0it3r

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Re: My texture holder gets deleted although still in scope
« Reply #1 on: June 13, 2019, 05:23:06 pm »
You create a new, local tile_texture_holder which creates a texture, then you set the texture to the sprite.
But since the tile_texture_holder is local, it will be destroyed as soon as you run out of scope, destroying the texture and thus the reference from the sprite to the texture becomes invalid.
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