openscad/dotSCAD
1
0
Fork 0
mirror of https://github.com/JustinSDK/dotSCAD.git synced 2025-03-21 22:49:44 +01:00
Code Issues Releases Wiki Activity

refactor: no undef

Browse Source
This commit is contained in:
Justin Lin 2022-03-21 14:55:38 +08:00
parent a0d4d732a7
commit a9b40f133b
1 changed files with 8 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
src/experimental/_impl/_tiles_wfc_impl.scad
View File

@ -55,25 +55,18 @@ function wf_eigenstates_at(wf, x, y) = wf_eigenstates(wf)[y][x];
function wf_collapse(wf, x, y) =
let(
weights = wf_weights(wf),
states_xy = wf_eigenstates_at(wf, x, y),
weights_xy = [
for(state = states_xy)
let(w = hashmap_get(weights, state))
if(w != undef)
[state, w]
],
leng = len(weights_xy),
threshold = rand() * sum([for(i = 0; i < leng; i = i + 1) weights_xy[i][1]])
states = wf_eigenstates_at(wf, x, y),
all_weights = wf_weights(wf),
weights = [for(state = states) hashmap_get(all_weights, state)],
threshold = rand() * sum(weights)
)
_wf_collapse(wf, x, y, weights_xy, len(weights_xy), threshold);
_wf_collapse(wf, x, y, states, weights, len(states), threshold);
function _wf_collapse(wf, x, y, states_weights, leng, threshold, i = 0) =
function _wf_collapse(wf, x, y, states, weights, leng, threshold, i = 0) =
threshold < 0 || i == leng ? wf :
let(state_weight = states_weights[i])
_wf_collapse(
threshold < state_weight[1] ? _replaceStatesAt(wf, x, y, [state_weight[0]]) : wf,
x, y, states_weights, leng, threshold - state_weight[1], i + 1
threshold < weights[i] ? _replaceStatesAt(wf, x, y, [states[i]]) : wf,
x, y, states, weights, leng, threshold - weights[i], i + 1
);
// Shannon entropy