Repeat to yourself: radians are your friend, degrees are for artist....
Degrees are for openGL ;-)
Thank you so much exactly what I was looking for...well I knew I wanted to find the radians of the angle with sin/cos but could not remember what to do with them. How much slower is this compared to just giving and x and y speed? Is the sin/cos that costly? I know you are not doing it on every move update but still.
If your computer is over 30 years old or if you have millions of objects, it may be costly. Otherwise you will not notice any slowdown.