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add giant maze

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Justin Lin
2022-08-18 11:46:47 +08:00
parent b832cbec2e
commit 7689ac9c55
1 changed files with 86 additions and 0 deletions
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examples/maze/giant_maze.scad Normal file
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use <maze/mz_square.scad>
use <maze/mz_tiles.scad>
use <util/find_index.scad>
use <voronoi/vrn2_cells_space.scad>
use <noise/nz_perlin2.scad>
rows = 5;
columns = 5;
height = 5;
height_smooth = 5;
giant_maze();
module giant_maze() {
bitmaps = [
[[0, 0, 0], [0, 0, 0], [0, 0, 0]],
[[0, 0, 0], [0, 1, 0], [0, 1, 0]],
[[0, 0, 0], [0, 1, 1], [0, 0, 0]],
[[0, 0, 0], [0, 1, 1], [0, 1, 0]],
[[0, 1, 0], [0, 1, 0], [0, 0, 0]],
[[0, 1, 0], [0, 1, 0], [0, 1, 0]],
[[0, 1, 0], [0, 1, 1], [0, 0, 0]],
[[0, 1, 0], [0, 1, 1], [0, 1, 0]],
[[0, 0, 0], [1, 1, 0], [0, 0, 0]],
[[0, 0, 0], [1, 1, 0], [0, 1, 0]],
[[0, 0, 0], [1, 1, 1], [0, 0, 0]],
[[0, 0, 0], [1, 1, 1], [0, 1, 0]],
[[0, 1, 0], [1, 1, 0], [0, 0, 0]],
[[0, 1, 0], [1, 1, 0], [0, 1, 0]],
[[0, 1, 0], [1, 1, 1], [0, 0, 0]],
[[0, 1, 0], [1, 1, 1], [0, 1, 0]]
];
function tiles2bits(tiles) =
[
for(tile = tiles)
let(
bitmap = bitmaps[tile[2]],
sx = tile.x * 3,
sy = tile.y * 3
)
each [for(y = [0:2], x = [0:2]) [[sx + x, sy + y], bitmap[y][x]]]
];
bits = tiles2bits(mz_tiles(mz_square(rows, columns)));
m = [
for(r = [0:rows * 3 - 1])
[
for(c = [0:columns * 3 - 1])
let(i = find_index(bits, function(elem) elem[0] == [c, r]))
bits[i][1]
]
];
cells = vrn2_cells_space([len(m[0]), len(m)], 1);
seed = rands(0, 1000, 1)[0];
for(cell = cells) {
cell_pt = cell[0];
cell_poly = cell[1];
noise = 2 * nz_perlin2(cell_pt.x / height_smooth, cell_pt.y / height_smooth, seed) + height;
b = m[cell_pt[1]][cell_pt[0]];
if(!is_undef(b) && b == 1) {
color("LightGrey")
translate(cell_pt)
linear_extrude(noise, scale = 0.9)
translate(-cell_pt)
polygon(cell_poly);
}
else {
color("gray")
translate(cell_pt)
linear_extrude(height / 2, scale = 0.75)
translate(-cell_pt)
polygon(cell_poly);
}
}
color("DimGray")
linear_extrude(height / 5)
for(cell = cells) {
polygon(cell[1]);
}
}