I plan on restricting the number of possible quads to 16, so I can pack two quads to a byte, for a nice 8:1 compression ratio at the cost of some map variety.

Pragma wrote:I've also sketched out a map engine that lumps 'quads' of tiles together to achieve a kind of compression on map data simply assign each group of four tiles a number, and then define what tile indexes to use when rendering elsewhere. I'm open to any suggestions or ideas in this direction.Īnyway, I'll post samples here once I get the kinks out. I'm planning on using mode2 (or even the new engine that Uze just posted) to manage fine scrolling/clipping, and then the map engine will simply redraw the screen once the fine X/Y fine scroll is exhausted. The result would look like stuff on the NES, where the game takes on a 'blocky' appearance in exchange for having more territory to trek through - again, Castlevania and Metroid are my inspiration here. I've also sketched out a map engine that lumps 'quads' of tiles together to achieve a kind of compression on map data simply assign each group of four tiles a number, and then define what tile indexes to use when rendering elsewhere. I figure something like this might be worth it for RPGs, where the CPU cost of decoding won't be all that critical. So far, it looks like this algorithm gets %52 compression on 3k worth of 'Lorem Ipsum' text, with the worst case (a string of 47 chars, each distinct) running at about 73%. My AVR assembler is a little weak, so I'm hoping that testing will move swiftly. Right now, it looks like I have a prototype command-line utility that will take an input text file of named strings, compress them, and emit both data and code (unrolled huffman tree scheme) suitable for printing.

Is anyone else working on any 'metroidvania' or RPG style games for the Uzebox? The new 6th edition publication is the manual from which the syllabus and the examinations are set and supports the new updated PRINCE2 qualification for both Foundation and Practition-er examinations.I'm presently hard at work putting together a few nuts-and-bolts to ease game development.

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