#include "map.h"

#include <iostream>

Map::Map(SDL_Renderer* renderer)
    : renderer{renderer}
    , textures{renderer, "ground.bmp", 128}
{
    // +1 for the null terminated string
    assert(sizeof(level) == size.w * size.h + 1);

    size2d<int> window_size{0, 0};

    if (!SDL_GetRendererOutputSize(renderer, &window_size.w, &window_size.h))
    {
        tile_size = window_size / size;
    }
    else
    {
        std::cerr << "Failed to get renderer size: " << SDL_GetError()
                  << std::endl;
    }
}

void Map::draw()
{
    for (int j = 0; j < size.h; j++)
    {
        for (int i = 0; i < size.w; i++)
        {
            if (is_empty(i, j))
            {
                continue;
            }

            SDL_Rect dst =
                {tile_size.w * i, tile_size.h * j, tile_size.w, tile_size.h};
            SDL_Rect src = textures.rect(get(i, j));

            SDL_RenderCopy(renderer, textures.texture, &src, &dst);
        }
    }
}