Have you ever wondered how big the full landscape is in The Sentinel?
It's 1856 pixels high and 2048 pixels wide.
Here's the first level. The initial 192x160 screen is in red. Panning jumps the view to different grid points.
It's a big old world!
So the game screen shows shows 1/9.7 of the full height and 1/12.8 of the full width of the landscape.
The weird figures are because the screen is a different shape to the full view.
Also visible is the point carée equirectangular projection used in the game. This is taken straight from Revs.
For those who don't know, The Sentinel is a classic game from 1986, written by Geoff Crammond and published by Firebird.
It was originally released on the BBC Micro, and was converted to lots of other home computers, including the Commodore 64, ZX Spectrum.
See https://thesentinel.bbcelite.com/ for more.
#retrocomputing #retrogaming #bbcmicro #c64 #8bit