This demo works on a ZX81 + 16k RAM, and it was made by Entary Games in 2022. Download here: https://mega.nz/file/d4UlUYhZ#zpx2kmhvsUUoaCLdiW2DoZBwpSxvWZG50s6GZWTbu1A
About the program:
- Written in Z80 based Assembly language, 820 lines, including comments.
- Most of the graphics are included with RLE compression.
- The size of the program is 15799 bytes (16KB).
- The engine handles two shadow screens with 4 layers: background image, full screen animation, sprite, text scrolling.
- Keeping object-oriented programming in mind during development.
- The development was made with 'Flat Assembler', the testing was done on the 'Eight One' emulator.
- Image editor: https://zx81se.nickmann.hu
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