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refactor

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This commit is contained in:
Justin Lin
2022-03-18 14:34:27 +08:00
parent 2cd56758eb
commit 7d1cbb9460
1 changed files with 15 additions and 28 deletions
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43
src/maze/_impl/_mz_square_cells_impl.scad
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@@ -144,30 +144,25 @@ function go_maze(x, y, cells, rows, columns, x_wrapping = false, y_wrapping = fa
let(
r_dirs = rand_dirs(x * rows + y, seed),
v_dirs = visitable_dirs(r_dirs, x, y, cells, rows, columns, x_wrapping, y_wrapping),
nx_cells = set_visited(x, y, cells)
nx_cells0 = set_visited(x, y, cells),
leng_v_dirs = len(v_dirs)
)
// have visitable dirs?
v_dirs == [] ? nx_cells // road closed
: walk_around_from(
x, y,
v_dirs,
nx_cells,
rows, columns,
x_wrapping, y_wrapping,
len(v_dirs) - 1,
seed = seed
);
leng_v_dirs == 0 ? nx_cells0 : // road closed
// try four directions
let(nxcells1 = next_cells(x, y, v_dirs[0], nx_cells0, rows, columns, x_wrapping, y_wrapping, seed))
leng_v_dirs == 1 ? nxcells1 :
let(nxcells2 = next_cells(x, y, v_dirs[1], nxcells1, rows, columns, x_wrapping, y_wrapping, seed))
leng_v_dirs == 2 ? nxcells2 :
let(nxcells3 = next_cells(x, y, v_dirs[2], nxcells2, rows, columns, x_wrapping, y_wrapping, seed))
leng_v_dirs == 3 ? nxcells3 : next_cells(x, y, v_dirs[3], nxcells3, rows, columns, x_wrapping, y_wrapping, seed);
// try four directions
function walk_around_from(x, y, dirs, cells, rows, columns, x_wrapping, y_wrapping, i, seed) =
// all done?
i == -1 ? cells :
// not yet
function next_cells(x, y, dir, cells, rows, columns, x_wrapping, y_wrapping, seed) =
let(
dir = dirs[i],
nx = next_x(x, dir, columns, x_wrapping),
ny = next_y(y, dir, rows, y_wrapping),
nx_cells = !visitable(nx, ny, cells, rows, columns) ? // is the dir visitable?
ny = next_y(y, dir, rows, y_wrapping)
)
!visitable(nx, ny, cells, rows, columns) ? // is the dir visitable?
cells : // road closed so return cells directly
go_maze( // try the cell
nx, ny,
@@ -175,12 +170,4 @@ function walk_around_from(x, y, dirs, cells, rows, columns, x_wrapping, y_wrappi
rows, columns,
x_wrapping, y_wrapping,
seed
)
)
walk_around_from(x, y, dirs,
// try one direction
nx_cells,
rows, columns,
x_wrapping, y_wrapping,
i - 1,
seed);
);