Could you provide some more information of what you want and what you currently have.

I want make a astroid game. I have creat my sprite and now I want make a bulltet starts from the middle of my sprite when I touch the display.

In Cocos2d-x C++.

do you know how to detect when the screen has been touched?

yes i know it

Have you setup touch.

yes I configured the touch with ‘EventListenerTouchOneByOne’

Do you know how to spawn sprites?

I have implemented: the ship-sprite, the bullet-sprite, ‘Moveby’ for the bulltet to shoot, the touch when I touch of the screen.

Now my problem is that, when I touch the ship-sprite should the bullet move but I don’t know how I implementing the command.

What does your current MoveBy do?