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refactor dir table

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This commit is contained in:
Justin Lin 2022-05-16 07:41:51 +08:00
parent 5a63fe41f7
commit cb171262e7
1 changed files with 9 additions and 16 deletions
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25
src/maze/_impl/_mz_hamiltonian_impl.scad
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@ -40,26 +40,19 @@ function _corner_value(dotM, p) =
(dotMy1[x_1] ? 4 : 0) +
(dotMy[x_1] ? 8 : 0);
UP = [0, 1];
DOWN = [0, -1];
LEFT = [-1, 0];
RIGHT = [1, 0];
// [4, 0], [12, 0], [13, 0], // UP
// [1, 1], [3, 1], [7, 1], // DOWN
// [2, 2], [6, 2], [14, 2], // LEFT
// [8, 3], [9, 3], [11, 3] // RIGHT
_dir_table = [
undef, 1, 2, 1,
0, undef, 2, 1,
3, 3, undef, 3,
0, 0, 2, undef
undef, DOWN, LEFT, DOWN,
UP, undef, LEFT, DOWN,
RIGHT, RIGHT, undef, RIGHT,
UP, UP, LEFT, undef
];
_nxt_offset = [
[0, 1], // UP
[0, -1], // DOWN
[-1, 0], // LEFT
[1, 0] // RIGHT
];
function nxtp(dotM, p) = p + _nxt_offset[_dir_table[_corner_value(dotM, p)]];
function nxtp(dotM, p) = p + _dir_table[_corner_value(dotM, p)];
function _travel(dotM, p, leng) =
let(