Hi guys, first time posting here,

So I am programming a little platformer to learn new things and a problem I never had before got in my way.

The thing is that I'm calling a constructor of a class with a string and a renderer, so it can create a texture and then pass it to the each tile, and it doesn't work, it uses the png of the character instead of the tileset png. For some reason if I create the texture in the main loop and then pass it to each tile when rendering them it works fine.

I don't know if I explained myself correctly, my english is not perfect so sorry if its not clear ;_;

Code:

I send the renderer in the constructor:

level p_("maps/test.txt",0(this is the type),render_);

In the constructor I check the type(in this case 0) and then create the surface:

SDL_Texture* text_;
if(tipo==0){
        text_ = IMG_LoadTexture(render_,"graphics/t.png");

tile(t_,x,y,cx,text_);  Obviously then I destroy the surface created

t_=text_;    t_ being declared in the tile class.

nivel::nivel(char* archivo, int tipo, SDL_Renderer* r_){
    //dependiendo del tipo cada numero del tile será una cosa u otra
    int c_, t_, maxx, x=0, y=0, cx;
    SDL_Texture* text_;
    if(tipo==0){
        text_ = IMG_LoadTexture(r_,"graficos/t.png");
        std::ifstream f_(archivo);
        f_ >> c_;
        f_ >> maxx;
        for(int i=0; i<c_; i++){
            f_ >> t_;
            cx=32*t_;
            mapa_.push_back(tile(t_,x,y,cx,text_));
            x+=32;
            if(x>=maxx){
                x=0;
                y+=32;
            }
        }
        f_.close();
    }
    SDL_DestroyTexture(text_);
}

tile::tile(int tipo, int posx, int posy, int clipx, SDL_Texture* text_){
    t_=text_;
 
    //check tipos y dar una textura segun el tipo y el recorte
    clip_.w=TILE_S;
    clip_.h=TILE_S;
    clip_.x=clipx;
    clip_.y=0;
 
    absolutex=posx;
    absolutey=posy;
 
    pos_.x=posx;
    pos_.y=posy;
    pos_.w=TILE_S;
    pos_.h=TILE_S;
}
 
 

void tile::render(SDL_Renderer* r_, int camx, int camy){
    pos_.x=absolutex-camx;
    pos_.y=absolutey-camy;
    SDL_RenderCopy(r_, t_, &clip_, &pos_);
}

Can you post the rest of the relevant code?

Yes, sorry I didn't want to overwhelm with code.

[SPOILER]

Level constructor:

nivel::nivel(char* archivo, int tipo, SDL_Renderer* r_){
    //dependiendo del tipo cada numero del tile será una cosa u otra
    int c_, t_, maxx, x=0, y=0, cx;
    SDL_Texture* text_;
    if(tipo==0){
        text_ = IMG_LoadTexture(r_,"graficos/t.png");
        std::ifstream f_(archivo);
        f_ >> c_;
        f_ >> maxx;
        for(int i=0; i<c_; i++){
            f_ >> t_;
            cx=32*t_;
            mapa_.push_back(tile(t_,x,y,cx,text_));
            x+=32;
            if(x>=maxx){
                x=0;
                y+=32;
            }
        }
        f_.close();
    }
    SDL_DestroyTexture(text_);
}

Tile constructor and render function:

tile::tile(int tipo, int posx, int posy, int clipx, SDL_Texture* text_){
    t_=text_;
 
    //check tipos y dar una textura segun el tipo y el recorte
    clip_.w=TILE_S;
    clip_.h=TILE_S;
    clip_.x=clipx;
    clip_.y=0;
 
    absolutex=posx;
    absolutey=posy;
 
    pos_.x=posx;
    pos_.y=posy;
    pos_.w=TILE_S;
    pos_.h=TILE_S;
}
 
 

void tile::render(SDL_Renderer* r_, int camx, int camy){
    pos_.x=absolutex-camx;
    pos_.y=absolutey-camy;
    SDL_RenderCopy(r_, t_, &clip_, &pos_);
}

[/SPOILER]

I declare the level in the main loop of the game

You destroy the texture in the nivel constructor but the texture is still used by the tile objects that you created.

I've tried making the texture a class variable and not destroying it in the constructor, but it still doesn't work