McRogueFace/src/PyTexture.cpp

#include "PyTexture.h"

PyTexture::PyTexture(std::string filename, int sprite_w, int sprite_h)
: source(filename), sprite_width(sprite_w), sprite_height(sprite_h)
{
    texture = sf::Texture();
    texture.loadFromFile(source);
    auto size = texture.getSize();
    sheet_width = size.x;
    sheet_height = size.y;
    if (sheet_width % sprite_width != 0 || sheet_height % sprite_height != 0)
    {
        std::cout << "Warning: Texture `" << source << "` is not an even number of sprite widths or heights across." << std::endl 
            << "Sprite size given was " << sprite_w << "x" << sprite_h << "px but the file has a resolution of " << sheet_width << "x" << sheet_height << "px." << std::endl;
    }
}

sf::Sprite PyTexture::sprite(int index, sf::Vector2f pos,  sf::Vector2f s)
{
    int tx = index % sprite_width, ty = index / sprite_height;
    auto ir = sf::IntRect(tx * sprite_width, ty * sprite_height, sprite_width, sprite_height);
    auto sprite = sf::Sprite(texture, ir);
    sprite.setPosition(pos);
    sprite.setScale(s);
    return sprite;
}