[Allegro C++] Obliczanie współrzędnych obrazka

if( al_key_down( & keyState, ALLEGRO_KEY_UP ) )
{
    y -= moveSpeed;
    dir = UP;
}
else if( al_key_down( & keyState, ALLEGRO_KEY_DOWN ) )
{
    y += moveSpeed;
    dir = DOWN;
}
else if( al_key_down( & keyState, ALLEGRO_KEY_RIGHT ) )
{
    degree += 5;
    if( degree >= 360 )
         degree = 0;
   
    dir = RIGHT;
}
else if( al_key_down( & keyState, ALLEGRO_KEY_LEFT ) )
{
    degree -= 5;
    if( degree < 0 )
         degree = 360;
   
    dir = LEFT;
}

al_draw_rotated_bitmap( image, imageWidth / 2, imageHeight / 2, x, y, degree * 3.14159 / 180, 0 );

x += cos( kat );
y += sin( kat );