Subject: Re: [stella] Invaders update! - inv-beta.bin|
From: Glenn Saunders <krishna@xxxxxxxxxxxx>
Date: Thu, 24 Apr 1997 16:21:24 -0700 (PDT)
I think each row should have an individual shape/animation cycle, as well as a unique hue band. The way the marching animation works now, it marches in place (2 frames) for every horizontal movement. I don't know if that's how the arcade works, but the 2600 version changes shape only once per horizontal movement so that it coincides with the marching sound effect. As for shape ideas, if you have 6 frames to work with, you could do an animated strip (ala the middle invaders) so that the black stripe goes from top to bottom, or one half goes down, the other up. You can also create a new shape that is more like a slash / then \ in addition to the regular "block with one leg down" look. I don't think the upside down marchers on the top row work that well. There are plenty of ways to create new shapes and animations besides these even given the limited resolution. But yes, only the "block with one leg down" will give you a traditional marching image. (ascii diagrams for shape proposals available upon request). Also I noticed that when you shoot your shields, the missile goes well up into the shield before taking a piece out of it, if you know what I mean. That's a nit to pick but you'd imagine the missile collision would happen on the tip top of the missile and not the bottom. Also, the arcade space invaders had some squiggly missiles, not just straight lines. I believe missiles are two bits wide, right? You could get an alternating zig-zag missile in there if you wanted. I think in the arcade some of the missiles fall faster than others, which adds a good element of unpredictability there. Some method of animating an explosion (with a flickery missile shape?) would also snazz things up. Matching the movement of the invaders, the base, and the speed of the missiles is important in getting the arcade feel. In Space Invaders for the 2600 the missiles feel too slow, and if you use the fast missiles wave, the base's missiles feel too slow, and the base seems to be a little sluggish as well. They did a great job for what it is, but it's not arcade perfect. -- Archives available at http://www.biglist.com/lists/stella/archives/ E-mail UNSUBSCRIBE in the body to stella-request@xxxxxxxxxxx to be removed.