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refactor

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This commit is contained in:
Justin Lin
2020-04-15 08:21:20 +08:00
parent e242f11c07
commit 06dec812c2
3 changed files with 35 additions and 66 deletions
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34
src/experimental/_impl/_lsystem2_impl.scad
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@@ -1,37 +1,5 @@
use <experimental/assoc_lookup.scad>;
use <experimental/_impl/_lsystem_comm.scad>;
use <turtle/turtle2d.scad>;
use <util/rand.scad>;
// It doesn't use recursion to avoid recursion error.
function _join(str_lt) =
let(leng = len(str_lt))
[for(i = 0, s = str_lt[0]; i < leng; i = i + 1, s = str(s, str_lt[i])) s][leng - 1];
function c_or_v(c, v, rules, rules_pr, leng, i = 0) =
i == leng ? c : (
let(idx = search([v[i]], rules, num_returns_per_match=0, index_col_num = 1)[0][0])
rand(0, 1) <= rules_pr[idx] ? v[i] : c_or_v(c, v, rules, rules_pr, leng, i + 1)
);
function _derive1_p(base, rules, rules_pr) =
_join([
for(c = base)
let(v = [for(r = rules) if(r[0] == c) r[1]])
v == [] ? c :
c_or_v(c, v, rules, rules_pr, len(v))
]);
function _derive_p(base, rules, rules_pr, n, i = 0) =
i == n ? base : _derive_p(_derive1_p(base, rules, rules_pr), rules, rules_pr, n, i + 1);
function _derive1(base, rules) = _join([
for(c = base)
let(v = assoc_lookup(rules, c))
is_undef(v) ? c : v
]);
function _derive(base, rules, n, i = 0) =
i == n ? base : _derive(_derive1(base, rules), rules, n, i + 1);
function _lsystem2_derive(axiom, rules, n, rules_pr) =
is_undef(rules_pr) ? _derive(axiom, rules, n) :

34
src/experimental/_impl/_lsystem3_impl.scad
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@@ -1,37 +1,5 @@
use <experimental/assoc_lookup.scad>;
use <experimental/_impl/_lsystem_comm.scad>;
use <turtle/turtle3d.scad>;
use <util/rand.scad>;
// It doesn't use recursion to avoid recursion error.
function _join(str_lt) =
let(leng = len(str_lt))
[for(i = 0, s = str_lt[0]; i < leng; i = i + 1, s = str(s, str_lt[i])) s][leng - 1];
function c_or_v(c, v, rules, rules_pr, leng, i = 0) =
i == leng ? c : (
let(idx = search([v[i]], rules, num_returns_per_match=0, index_col_num = 1)[0][0])
rand(0, 1) <= rules_pr[idx] ? v[i] : c_or_v(c, v, rules, rules_pr, leng, i + 1)
);
function _derive1_p(base, rules, rules_pr) =
_join([
for(c = base)
let(v = [for(r = rules) if(r[0] == c) r[1]])
v == [] ? c :
c_or_v(c, v, rules, rules_pr, len(v))
]);
function _derive_p(base, rules, rules_pr, n, i = 0) =
i == n ? base : _derive_p(_derive1_p(base, rules, rules_pr), rules, rules_pr, n, i + 1);
function _derive1(base, rules) = _join([
for(c = base)
let(v = assoc_lookup(rules, c))
is_undef(v) ? c : v
]);
function _derive(base, rules, n, i = 0) =
i == n ? base : _derive(_derive1(base, rules), rules, n, i + 1);
function _lsystem3_derive(axiom, rules, n, rules_pr) =
is_undef(rules_pr) ? _derive(axiom, rules, n) :

33
src/experimental/_impl/_lsystem_comm.scad Normal file
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@@ -0,0 +1,33 @@
use <experimental/assoc_lookup.scad>;
use <util/rand.scad>;
// It doesn't use recursion to avoid recursion error.
function _join(str_lt) =
let(leng = len(str_lt))
[for(i = 0, s = str_lt[0]; i < leng; i = i + 1, s = str(s, str_lt[i])) s][leng - 1];
function c_or_v(c, v, rules, rules_pr, leng, i = 0) =
i == leng ? c : (
let(idx = search([v[i]], rules, num_returns_per_match=0, index_col_num = 1)[0][0])
rand(0, 1) <= rules_pr[idx] ? v[i] : c_or_v(c, v, rules, rules_pr, leng, i + 1)
);
function _derive1_p(base, rules, rules_pr) =
_join([
for(c = base)
let(v = [for(r = rules) if(r[0] == c) r[1]])
v == [] ? c :
c_or_v(c, v, rules, rules_pr, len(v))
]);
function _derive_p(base, rules, rules_pr, n, i = 0) =
i == n ? base : _derive_p(_derive1_p(base, rules, rules_pr), rules, rules_pr, n, i + 1);
function _derive1(base, rules) = _join([
for(c = base)
let(v = assoc_lookup(rules, c))
is_undef(v) ? c : v
]);
function _derive(base, rules, n, i = 0) =
i == n ? base : _derive(_derive1(base, rules), rules, n, i + 1);