Couple more comments...if you increase the number of ticks per second
for the animation, it makes the game play much smoother.  However, if
you add a lot of aliens, this may really slow things down.  IIRC, in the
original game, all the alien move together and drop together.  The whole
idea was that you wanted to eliminate columns (rather than rows) first,
so that the alien took longer to traverse the width of the screen.
Maybe moving all the aliens together in a single tick would make the
game play more responsive.  Also, the bullets take a long time to add to
the world.  Maybe there's some way to speed that up.

- Stephen

> -----Original Message-----
> From: squeak-dev-admin at lists.squeakfoundation.org 
> [mailto:squeak-dev-admin at lists.squeakfoundation.org] On 
> Behalf Of Stephen Pair
> Sent: Saturday, November 03, 2001 6:14 PM
> To: squeak-dev at lists.squeakfoundation.org
> Subject: RE: etoy space invader tutorial (alpha)
> 
> 
> I went through the entire tutorial just now.  I don't think 
> it needs to be in a window (you can easily move it and 
> minimize it with the handles).  Also, if someone wants it in 
> a window, there is a halo menu option for that.  I did notice 
> that the GeeMail morph refuses to obey my scrollbar 
> preferences though.
> 
> Regarding the tutorial itself: I used copies of your morphs 
> to follow the tutorial.  It might be good if you explain how 
> to use the halos to copy your morphs.  Also, I noticed that 
> your morphs look like patches grabbed from the screen and, 
> consequently, they are rectangular with the background color 
> as part of the morph.  When you use the drawing tool, morphs 
> have a transparent background (or, more precisely, they don't 
> include any background).  I'd recommend re-doing the morphs 
> in the tutorial such that they fit the drawings with no 
> background.  I've attached an image of what I'm talking about 
> in case this description is not clear.
> 
> Otherwise, it looks good.
> 
> - Stephen
> 
> > -----Original Message-----
> > From: squeak-dev-admin at lists.squeakfoundation.org
> > [mailto:squeak-dev-admin at lists.squeakfoundation.org] On 
> > Behalf Of Karl Ramberg
> > Sent: Saturday, November 03, 2001 10:44 AM
> > To: squeak
> > Subject: etoy space invader tutorial (alpha)
> > 
> > 
> > I'v written up a tutorial with some of the knowledge I
> > have accumulated about etoy scripting. It's not completed 
> > but it would be good to get some feedback at this stage...
> > I'm not used to write tutorials and find it hard to get from 
> > the click-on-that-button-and-do-this stage to acutally teach. 
> > 
> > I guess you must have a little basic knowledge of Squeak,
> > morphic, halos and etoys to get anywhere with this tutorial. 
> > You will find some tutorials on the basic stuff at squeakland.org.
> > 
> > Here is the url to my project at the BSS
> > 
> http://209.143.91.36/super/503
> 
> ejoy :-)
> Karl
> 
>