Rotate Sprite and Move at Angle!

[bryce910]

Hello everyone!

I am currently rotating a sprite by using:

sprite.rotate(1);

basically it is slowly rotating the sprite which works perfect. What I am not able to quite figure out is when I shoot a bullet from my sprite... for example which is located  at a 37* angle how would I go about getting the bullet to move in the same angle the sprite is rotated to?

Thanks and hopefully I made that clear and understandable!
Bryce910

[Laurent]

Basic trigonometry:

x += cos(angle) * speed;
y += sin(angle) * speed;

[bryce910]

Okay thank you! I never understood basic geometry! I will need to do some research it looks like!

[StormWingDelta]

Yep making games takes a lot of math.  I've met people who wanted to avoid using any kind of math in games before and found it rather funny.



In any event here's a few sites to get you started:

https://www.khanacademy.org/
http://www.gamedev.net/page/resources/_/technical/math-and-physics/practical-use-of-vector-math-in-games-r2968
http://en.wikibooks.org/wiki/Guide_to_Game_Development/Theory/Mathematics/Vectors