//////////////
// main.cpp //
//////////////

#include "engine.h"

/* SOME OTHER STUFF HERE */
texture *stuffAndThings[] =
{
    newTexture("texture1.bmp", SCR_W, SCR_H),
    newTexture("up.bmp", SCR_W, SCR_H),
    newTexture("down.bmp", SCR_W, SCR_H),
    newTexture("left.bmp", SCR_W, SCR_H),
    newTexture("right.bmp", SCR_W, SCR_H)
};

int main(int numArgs, char **args)
{
    newTexture("texture1.bmp", SCR_W, SCR_H);
    newTexture("up.bmp", SCR_W, SCR_H);
    newTexture("down.bmp", SCR_W, SCR_H);
    newTexture("left.bmp", SCR_W, SCR_H);
    newTexture("right.bmp", SCR_W, SCR_H);

    if(init() && initMedia()) SDL_Delay(5000);
    quit();
    printf("\n\nThe program has ended..\n"); fflush(stdin); getchar();
    return 0;
}

/////////////////
// texture.cpp //
/////////////////

#include "engine.h"

SDL_Texture *texError = NULL;
std::vector<texture*> textures;

texture::texture(const char *_path, int w, int h) : path(_path), t(NULL)
{
    r.w = w;
    r.h = h ? h : w;
    r.x = r.y = 0;
}

texture::~texture() { if(t != texError) SDL_DestroyTexture(t); }

void texture::draw()
{
    if(!t) return;
    SDL_RenderCopy(renderer, t, NULL, &r);
}

SDL_Texture *openImage(const char *path)
{
    if(!path) return NULL;
    log("Texture: %s\n", path);
    SDL_Surface *s = IMG_Load(path);
    if(!s)
    {
        log("Failed to open image file: %s\n", IMG_GetError());
        return NULL;
    }
    SDL_Texture *t = SDL_CreateTextureFromSurface(renderer, s);
    SDL_FreeSurface(s);
    if(!t)
    {
        log("SDL_CreateTextureFromSurface failed: %s\n", SDL_GetError());
        t = NULL;
    }

    return t;
}

texture *newTexture(const char *path, int w, int h)
{
    texture *_newTexture = new texture(path, w, h);
    for(size_t i = 0; i < textures.size(); ++i)
        if(!textures[i])
        {
            textures[i] = _newTexture;
            return _newTexture;
        }

    textures.push_back(_newTexture);
    return _newTexture;
}

bool loadTextures()
{
    if(!(texError = openImage("texerror.bmp"))) return false;
    for(size_t i = 0; i < textures.size(); ++i) textures[i]->t = openImage(textures[i]->path);
    return true;
}

void freeTextures()
{
    for(size_t i = 0; i < textures.size(); ++i)
    {
        delete textures[i];
        textures[i] = NULL;
    }
    SDL_DestroyTexture(texError);
    texError = NULL;
}