dotSCAD/docs/lib3x-mz_square_initialize.md

mz_square_initialize

It's a helper for initializing cell data of a maze.

Since: 2.5

Parameters

• rows : The rows of the maze.
• columns : The columns of the maze.
• mask : The mask for a maze. A list of 0s and 1s. Cells makred as 0 won't be traveled.

Examples

use <maze/mz_square_initialize.scad>
use <maze/mz_square_cells.scad>
use <maze/mz_square_walls.scad>
use <polyline2d.scad>

rows = 10;
columns = 10;
cell_width = 5;
wall_thickness = 2;

init_cells = mz_square_initialize(rows, columns);
cells = mz_square_cells(rows, columns, init_cells = init_cells);
walls = mz_square_walls(cells, rows, columns, cell_width);

for(wall = walls) {
	polyline2d(wall, wall_thickness, joinStyle = "JOIN_MITER");
}

use <maze/mz_square_cells.scad>
use <maze/mz_square_walls.scad>
use <maze/mz_square_initialize.scad>
use <polyline2d.scad>

mask = [
    [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
    [0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0],
    [0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0],
    [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0],
    [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0],
    [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0],
    [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0],
    [0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0],
    [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0],
    [0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0],
    [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
];
start = [3, 3];
cell_width = 5;
wall_thickness = 2;

rows = len(mask);
columns = len(mask[0]);
init_cells = mz_square_initialize(mask = mask);
cells = mz_square_cells(rows, columns, start, init_cells);
walls = mz_square_walls(cells, rows, columns, cell_width, false, false);

// Maze
for(wall = walls) {
    polyline2d(wall, wall_thickness, joinStyle = "JOIN_MITER");
}

// Mask
mask_width = cell_width + wall_thickness;
translate([-wall_thickness / 2, -wall_thickness / 2])
for(i = [0:rows - 1], j = [0:columns - 1]) {
    if(mask[i][j] == 0) {
        translate([cell_width * j, cell_width * (rows - i - 1)])
            square(mask_width);
    }
}

I provide a tool img2binary for converting an image into 0 and 1. 0 is for black and 1 is for white. You may use it to create a mask from an image. The mask of maze_masking is an example.