Need help with little thing in creating game using SFML

[jackblue2009]

Hello guys, I'm currently working on a 2D space shooter game in C++ using SFML library. What I need to know is how make an object (ex:laser) fire up from object (ex:player) when a user press button??

I'd be very grateful for you guys cuz I'm only stuck on that!!

[Aceix]

There is some variable commonly known as velocity. Set the velocity of the missile to be a negative value and draw. What I basically mean is that, create the missile near the player(below), and when updating its position, do so upward by using a negative value.

Aceix.