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Code Issues Releases Wiki Activity

add coord_min_entropy

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Justin Lin
2021-03-14 16:09:27 +08:00
parent bd873ae626
commit cd21c6437b
1 changed files with 25 additions and 0 deletions
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25
src/experimental/tiles_wfc.scad
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@@ -157,6 +157,30 @@ function _replaceStatesAt(wf, x, y, states) =
)
];
function wf_not_collapsed_coords(wf) = [
for(y = [0:wf_height(wf) - 1])
for(x = [0:wf_width(wf) - 1])
if(len(wf_eigenstates_at(wf, x, y)) != 1)
[x, y]
];
function coord_min_entropy(wf) =
let(
coords = wf_not_collapsed_coords(wf),
coords_leng = len(coords),
entropyCoord = coords[0],
entropy = wf_entropy(wf, entropyCoord[0], entropyCoord[1]) - (rand() / 1000)
)
_coord_min_entropy(wf, coords, coords_leng, entropy, entropyCoord);
function _coord_min_entropy(wf, coords, coords_leng, entropy, entropyCoord, i = 1) =
i == coords_leng ? entropyCoord :
let(
coord = coords[i],
noisedEntropy = wf_entropy(wf, coord[0], coord[1]) - (rand() / 1000)
)
noisedEntropy < entropy ? _coord_min_entropy(wf, coords, coords_leng, noisedEntropy, coord, i + 1) :
_coord_min_entropy(wf, coords, coords_leng, entropy, entropyCoord, i + 1);
width = len(sample[0]);
@@ -176,3 +200,4 @@ for(y = [0:height - 1]) {
}
}
assert(wf_entropy(wf, 0, 0) == 1.458879520793018);
assert(coord_min_entropy(wf_collapse(wf, 0, 0)) != [0, 0]);