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Code Issues Releases Wiki Activity

refactor table

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Justin Lin
2020-03-06 09:19:24 +08:00
parent e99d71d3b9
commit e3e9331a70
1 changed files with 33 additions and 29 deletions
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62
src/experimental/_impl/_mz_blocks_impl.scad
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@@ -37,37 +37,39 @@ function set_visited(x, y, maze) = [
]; ];
// 0(right), 1(upper), 2(left), 3(down) // 0(right), 1(upper), 2(left), 3(down)
_rand_dir_table = [
[0, 1, 2, 3],
[0, 1, 3, 2],
[0, 2, 1, 3],
[0, 2, 3, 1],
[0, 3, 1, 2],
[0, 3, 2, 1],
[1, 0, 2, 3],
[1, 0, 3, 2],
[1, 2, 0, 3],
[1, 2, 3, 0],
[1, 3, 0, 2],
[1, 3, 2, 0],
[2, 0, 1, 3],
[2, 0, 3, 1],
[2, 1, 0, 3],
[2, 1, 3, 0],
[2, 3, 0, 1],
[2, 3, 1, 0],
[3, 0, 1, 2],
[3, 0, 2, 1],
[3, 1, 0, 2],
[3, 1, 2, 0],
[3, 2, 0, 1],
[3, 2, 1, 0]
];
function rand_dirs() = function rand_dirs() =
[ _rand_dir_table[round(rands(0, 24, 1)[0])];
[0, 1, 2, 3],
[0, 1, 3, 2],
[0, 2, 1, 3],
[0, 2, 3, 1],
[0, 3, 1, 2],
[0, 3, 2, 1],
[1, 0, 2, 3],
[1, 0, 3, 2],
[1, 2, 0, 3],
[1, 2, 3, 0],
[1, 3, 0, 2],
[1, 3, 2, 0],
[2, 0, 1, 3],
[2, 0, 3, 1],
[2, 1, 0, 3],
[2, 1, 3, 0],
[2, 3, 0, 1],
[2, 3, 1, 0],
[3, 0, 1, 2],
[3, 0, 2, 1],
[3, 1, 0, 2],
[3, 1, 2, 0],
[3, 2, 0, 1],
[3, 2, 1, 0]
][round(rands(0, 24, 1)[0])];
// get x value by dir // get x value by dir
_next_x_table = [1, 0, -1, 0];
function next_x(x, dir, columns, circular) = function next_x(x, dir, columns, circular) =
let(nx = x + [1, 0, -1, 0][dir]) let(nx = x + _next_x_table[dir])
circular ? circular ?
nx < 1 ? nx + columns : ( nx < 1 ? nx + columns : (
nx > columns ? nx % columns : nx nx > columns ? nx % columns : nx
@@ -76,8 +78,9 @@ function next_x(x, dir, columns, circular) =
nx; nx;
// get y value by dir // get y value by dir
_next_y_table = [0, 1, 0, -1];
function next_y(y, dir, rows, circular) = function next_y(y, dir, rows, circular) =
let(ny = y + [0, 1, 0, -1][dir]) let(ny = y + _next_y_table[dir])
circular ? circular ?
ny < 1 ? ny + rows : ( ny < 1 ? ny + rows : (
ny > rows ? ny % rows : ny ny > rows ? ny % rows : ny
@@ -141,8 +144,9 @@ function try_block(dir, x, y, maze, rows, columns) =
// find out visitable dirs from (x, y) // find out visitable dirs from (x, y)
_visitable_dir_table = [0, 1, 2, 3];
function visitable_dirs_from(x, y, maze, rows, columns, x_circular, y_circular) = [ function visitable_dirs_from(x, y, maze, rows, columns, x_circular, y_circular) = [
for(dir = [0, 1, 2, 3]) for(dir = _visitable_dir_table)
if(visitable(next_x(x, dir, columns, x_circular), next_y(y, dir, rows, y_circular), maze, rows, columns)) if(visitable(next_x(x, dir, columns, x_circular), next_y(y, dir, rows, y_circular), maze, rows, columns))
dir dir
]; ];