Subject: [stella] 11 Invaders "Reloaded" From: Thomas Jentzsch <tjentzsch@xxxxxx> Date: Tue, 25 Nov 2003 23:14:16 +0100 |
Hi, after I finally got a Supercharger (donated from a friendly AtariAge moderator), I went back to my old Space Invaders idea. Attached is an early tech demo, which shows 11 invaders/row. The demo does *NOT* work well on any emulator! (Yet? :-) There are 11 different positions now, each removed invader column would add 4 more possible positions). And there still is enough time for displaying a single missile (ball). The setup code still needs some optimization, so I am optimistic to reduce the distance between two rows by 1..3 pixel. The main trick is to use early HMOVEs and RESP0/1s. This seems to work on most Atari 2600. Some (those who have problems with Kool Aid Man too) have little problems with some top left invaders and require slightly different parameters (recompile with KOOL_AID_OK = 0). Use the right difficulty switch do get rid of the debug graphics. I am not sure if 11 invaders would make a better game, so this may or may not evolve into a finished game. Opinions? Have fun! Thomas _______________________________________________________ Thomas Jentzsch | *** Every bit is sacred ! *** tjentzsch at web dot de |
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