space invaders question

hi all,

I'm creating a space invaders clone as a starting point to teach my self how to make games using MMF2. so far i think i have managed to make most of the game play and everything works the way it should do. but the only thing I'm stuck on, is how to make the enemy aliens randomly fire back at the spaceship. I've tried to do some research and searched the web/forums but I'm still missing something. i know this is probably going to be a simple action, but dose anyone have any handy hint they may want to share.

many thanks in advance

infectedspleen

there's shoot object action which you could set by using a event of every 2s and selecting a random invader

If you have more than one invader type you could put them all in a Qualifier group.

Then set the condition:
+Every X seconds
+Pick "Active" object at Random (under Pick or Count-> Pick Active at Random)

Then under the Qualifier Group column:
-Shoot an Object (set it's direction to straight down)

thank you so much, it worked a treat. my game if finally finished.

theres an open source space invaders tutorial at acoders - if you wanna see that too. (both MMF1.5 version and MMF2 version)
http://www.acoders.com/acsite/forums_readtopic.php?id=2410