C64 Games memories - Scarabaeus
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- Опубликовано: 12 июн 2024
- In this video I look at Commodore 64 "Scarabaeus", in America known as "Invaders of the Lost Tomb". Having a look at the 3D view rendering, game maps in memory, and finding a bit of a cheat for collecting items.
github.com/martinpiper/Debugg...
00:11 Introduction
01:00 Intro sequence graphics
03:53 Initial investigation with C64DebugGUI
10:23 Finding a few map views in memory
11:39 Dual screen 3D and debug map view
12:55 3D view investigations
18:59 Finding a map view item cheat
23:24 Map for the 3D view
26:41 Monster escapes the map
26:57 Filling the map with solid walls
28:37 Far wall movement!
29:07 Making a very long corridor
29:38 Empty space, just columns
30:06 3D draw routine logic
35:58 Seems to use a table for drawing
37:03 Not a full 3D view, more optimised
38:29 Summary and outro 
Игры
That wiggling thing in the elevator (sprite 7) is the ears and tail of the little dog seen in the intro.
I remember playing this game back in the day. I didn't played it a lot because I had no clue what is going on, but I really loved the mystic and spooky atmosphere.
Ahh yes that makes sense
A fantastic atmospheric classic. I first played it at either 6 or 7 years old and it scared the sheet out of me.
Your videos bring back so many of these technical "how exactly did they do that" questions I had from 35+ years ago. I love that you're solving them for us and showing exactly how clever some of these developers were in the day. Developers now have to optimize so that it's playable on a "reasonable" machine, but back then it had to work within the fixed machine specs (and outshine the competition developed for those same machines). I know there are guys who are amazing at optimization (the work Michael Abrash for Id, for example), but performance optimization isn't quite the same as using quirks and intimate knowledge of the hardware to make it do something people thought impossible. Keep making these insanely interesting video, Martin!
Thank you for the kind feedback :) I will continue to make videos. I'm also looking for games suggestions to look at next.
It's a nice easy way of doing a 3D like environment, the gradual turning is a nice touch instead of just doing 90 degree turns. I think most of the 8 bit home computers had a similar game back in the day, but while impressive looking at first, none of them were good games.
Always been fascinated with how this game was made, how little-known it is and why no-one pinched the 'engine' for other games.
The first immersive sim?