/** Draw a tile on the screen: */
static void draw(float x, float y, unsigned int c, Uint8 alpha = 255);
static void draw_stretched(float x, float y, int w, int h, unsigned int c, Uint8 alpha = 255);
/** Draw a tile on the screen: */
static void draw(float x, float y, unsigned int c, Uint8 alpha = 255);
static void draw_stretched(float x, float y, int w, int h, unsigned int c, Uint8 alpha = 255);