Space Invaders

Hi guys

My first post, please be gentle!

OK, so, I installed Construct 2 yesterday and it's amazing. Really liking the deceptive simplicity of it, mixed with the raw power :)

So, decided to build a Space Invaders game as a little learning exercise... And I'm already stumped!

I have a couple of issues I'd like some help with - or feel free to point me at tutorials that my blurry eyes may have missed.

1. I have a small 4x8 grid of Aliens. Is there a simple way to animate the group, as a whole, in that classic Space Invaders edge-to-edge-then-descend-a-row movement?

2. Is there a way to animate a gentle 'rocking' movement on a sprite? Rotate seems to only have the option of a 360 degree rotation, and in one direction, rather then the 10-15 degrees I actually want, back and forth.

3. How can I randomize the appearance of a 'min-boss' at the top of the screen?

My apologies if these have been covered already - I have looked but I'm either too tired or it doesn't exist in the tuts section.

Any further advice on things I may not have considered yet are greatly appreciated! I suspect there will be plenty of other questions :)

M

Global number direction=1 Global number rate = 1 Global number step = 16 +System: Every rate seconds -> Invader: set X to X+step*direction +Invader: X > LayoutWidth-20 -> direction = direction*-1 -> Invader: set Y to Y+step +Invader: X < 20 -> direction = direction*-1 -> Invader: set Y to Y+step

For the invaders movement should work

Edited by Yann - 26 Jan 2012 at 6:00pm

2. You should use the sine behavior (You have 2 examples in the c2 install\examples folder).

For 3 I guess what you need the most is to know how to pick a specific instance and have different values to its instance variables and behavior.