Locomotive BASIC - Fracland by Andy Wood

[ComSoft6128]

Type-in from the November 1989 issue of Amstrad Action.
The program is Listed in the video.

From the magazine (courtesy of CPCRulez):
"Create weird and wonderful landscapes with Andy Wood's fractal generation program. An alien world is built up using fractal principles applied to general landmasses, broken down repeatedly into smaller upper and lowland areas. The landscape is made up of an array of 32 by 32 elements, each holding the height of the landscape at that point The array is divided into four quadrants, and a random height is allocated to all the points within that quadrant. A recursive procedure breaks down each quadrant into sub quadrants, modifying the values until they can no longer be subdivided.

Once all the calculations have been determined, a perspective view is generated. Hidden line removal is obtained by clever use of the fill command. Trees are planted to add a sense of scale. The sea level is raised will each viewing, gradually submerging the landscape, to create islands and inlets."

I let this Run for just over 30 minutes.


https://dai.ly/x8m6lk4

Best viewed on a large screen at 720p (Dailymotion player setting)

Links:
https://www.cpc-power.com/index.php?page=detail&num=13662
https://cpcrulez.fr/applications_graphic-fracland.htm

Not emulated - original hardware and software.
Please note that the aspect ratio for this video is 16:9 but the CPC monitor has
an aspect ratio of 4:3 so you may wish to adjust your viewing device accordingly.