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Conway's Game of Life implemented on the Atari ST blitter
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Conway's Game of Life implemented on the Atari ST blitter.

Gosper Glider Gun

Since I've got a Atari Mega 4, I've been reading up on the Atari ST Blitter and what to do with it. Apart from being excellent at copying bitmaps around, it does have a few cool tricks up its sleeve.

Could something like Game of Life be implemented using the BLiTTER?

The rules are simple. The Wikipedia article on Conway's Game of Life describes them as thus:

The universe of the Game of Life is an infinite two-dimensional orthogonal grid of square cells, each of which is in one of two possible states, alive or dead, or "populated" or "unpopulated". Every cell interacts with its eight neighbours, which are the cells that are horizontally, vertically, or diagonally adjacent. At each step in time, the following transitions occur:

  1. Any live cell with fewer than two live neighbours dies, as if caused by underpopulation.
  2. Any live cell with two or three live neighbours lives on to the next generation.
  3. Any live cell with more than three live neighbours dies, as if by overpopulation.
  4. Any dead cell with exactly three live neighbours becomes a live cell, as if by reproduction.

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