simon
88d707a32e
1. The regression test failures were both errors in the tests rather than in the code under test; 2. The failure in the 'bulk' test relates to the fact that the new declarative parser cannot cope with trailing whitespace.
60 lines
2 KiB
Plaintext
60 lines
2 KiB
Plaintext
## Basic ruleset which just grows trees
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;; This ruleset is not very interesting in itself, but is useful as a starting
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;; point from which to build more interesting rulesets.
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## Vegetation rules
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;; rules which populate the world with plants
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;; Occasionally, passing birds plant tree seeds into grassland
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if state is grassland then 1 chance in 10 state should be heath
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;; heath below the treeline grows gradually into forest
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if state is heath and altitude is less than 120 then state should be scrub
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if state is scrub then 1 chance in 5 state should be forest
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;; Forest on fertile land grows to climax
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if state is forest and fertility is more than 5 and altitude is less than 70 then state should be climax
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;; Climax forest occasionally catches fire (e.g. lightning strikes)
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if state is climax then 1 chance in 500 state should be fire
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;; Climax forest neighbouring fires is likely to catch fire
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if state is climax and some neighbours are fire then 1 chance in 3 state should be fire
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;; After fire we get waste
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if state is fire then state should be waste
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;; And after waste we get pioneer species; if there's a woodland seed
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;; source, it's going to be heath, otherwise grassland.
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if state is waste and some neighbours are scrub then state should be heath
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if state is waste and some neighbours are forest then state should be heath
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if state is waste and some neighbours are climax then state should be heath
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if state is waste then state should be grassland
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## Potential blockers
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;; Forest increases soil fertility.
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if state is in forest or climax then fertility should be fertility + 1
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## Initialisation rules
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;; Rules which deal with state 'new' will waste less time if they're near the
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;; end of the file
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;; below the waterline we have water.
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if state is new and altitude is less than 10 then state should be water
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;; above the snowline we have snow.
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if state is new and altitude is more than 200 then state should be snow
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;; otherwise, we have grassland.
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if state is new then state should be grassland
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