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refactor

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This commit is contained in:
Justin Lin
2022-03-19 23:31:02 +08:00
parent 05abb19126
commit 8c57db2e06
1 changed files with 5 additions and 12 deletions
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17
src/experimental/_impl/_tiles_wfc_impl.scad
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@@ -23,9 +23,7 @@ function _weights_of_tiles(weights, symbols, leng, i = 0) =
tile = symbols[i],
w = hashmap_get(weights, tile)
)
w == undef ?
_weights_of_tiles(hashmap_put(weights, tile, 1), symbols, leng, i + 1) :
_weights_of_tiles(hashmap_put(weights, tile, w + 1), symbols, leng, i + 1);
_weights_of_tiles(hashmap_put(weights, tile, w == undef ? 1 : w + 1), symbols, leng, i + 1);
/*
oo-style
@@ -97,18 +95,13 @@ function _oneStateAt(wf, x, y, state) = _replaceStatesAt(wf, x, y, [state]);
// Shannon entropy
function wf_entropy(wf, x, y) =
let(
states = wf_eigenstates_at(wf, x, y),
sumOfWeights_sumOfWeightLogWeights = _wf_entropy(wf_weights(wf), states, len(states), 0, 0),
sumOfWeights = sumOfWeights_sumOfWeightLogWeights[0],
sumOfWeightLogWeights = sumOfWeights_sumOfWeightLogWeights[1]
weights = wf_weights(wf),
states_weights = [for(state = wf_eigenstates_at(wf, x, y)) hashmap_get(weights, state)],
sumOfWeights = sum(states_weights),
sumOfWeightLogWeights = sum([for(w = states_weights) w * ln(w)])
)
ln(sumOfWeights) - (sumOfWeightLogWeights / sumOfWeights);
function _wf_entropy(weights, states, state_leng, sumOfWeights, sumOfWeightLogWeights, i = 0) =
i == state_leng ? [sumOfWeights, sumOfWeightLogWeights] :
let(weight = hashmap_get(weights, states[i]))
_wf_entropy(weights, states, state_leng, sumOfWeights + weight, sumOfWeightLogWeights + weight * ln(weight), i + 1);
function _replaceStatesAt(wf, x, y, states) =
let(
eigenstates = wf_eigenstates(wf),