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A-M baby

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Ingy döt Net 2013-04-10 21:29:02 -07:00
parent 764da6cbbb
commit db842d013d
19005 changed files with 197040 additions and 7 deletions
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Task/Forest-fire/Mathematica/forest-fire.mathematica Normal file
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evolve[nbhd_List, k_] := 0 /; nbhd[[2, 2]] == 2 (*burning->empty*)
evolve[nbhd_List, k_] := 2 /; nbhd[[2, 2]] == 1 && Max@nbhd == 2 (*near_burning&nonempty->burning*)
evolve[nbhd_List, k_] := RandomChoice[{f, 1 - f} -> {2, nbhd[[2, 2]]}] /; nbhd[[2, 2]] == 1 && Max@nbhd < 2 (*spontaneously combusting tree*)
evolve[nbhd_List, k_] := RandomChoice[{p, 1 - p} -> {1, nbhd[[2, 2]]}] /; nbhd[[2, 2]] == 0 (*random tree growth*)
r = 100; c = 100; p = 10^-2; f = 10^-4;
init = RandomInteger[BernoulliDistribution[0.05], {r, c}];
MatrixPlot[CellularAutomaton[{evolve, {}, {1, 1}}, {init, 0}, {{{300}}}], ColorRules -> {0 -> White, 1 -> Green, 2 -> Red}, Frame -> False]