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62 lines
2.4 KiB
Markdown
62 lines
2.4 KiB
Markdown
# mz_square_cells
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This function returns cell data of a square maze. The data is a list of cells. A cell has the data structure `[x, y, type]`. `x` and `y` are 0-based. `x` means the x-th column and `y` means y-th row for a cell. The value of `type` can be `0`, `1`, `2`, `3` or `4`. Setting them to constants is convenient.
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NO_WALL = 0; // the cell has no wall
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TOP_WALL = 1; // the cell has a top wall
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RIGHT_WALL = 2; // the cell has a right wall
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TOP_RIGHT_WALL = 3; // the cell has a top wall and a right wall
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MASK = 4; // the cell is masked.
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The cell data is seperated from views. You can use cell data to construct [different types of mazes](https://www.thingiverse.com/justinsdk/collections/maze-generator).
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**Since:** 2.5
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## Parameters
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- `rows` : The number of rows.
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- `columns` : The number of columns.
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- `start` : The start point to travel the maze. Default to `[0, 0]`.
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- `init_cells` : You can define your own initial cell data, a list of `[x, y, type, visited]`s. `visited` means the cell is visited or not. A visited cell won't be visited when traveling the maze. If you don't provide `init_cells`, `mz_square_cells` will generate one automatically.
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- `x_wrapping` : Default to `false`. If you want to wrap the maze in the x direction, set it to `true`. The last column of cells will be adjacent to the first column of cells.
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- `y_wrapping` : Default to `false`. If you want to wrap the maze in the y direction, set it to `true`. The last row of cells will be adjacent to the first row of cells.
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- `seed` : The maze is traveling randomly. Use `seed` to initialize the pseudorandom number generator.
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## Examples
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use <maze/mz_square_cells.scad>
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use <line2d.scad>
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rows = 10;
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columns = 10;
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cell_width = 5;
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wall_thickness = 2;
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NO_WALL = 0;
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TOP_WALL = 1;
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RIGHT_WALL = 2;
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TOP_RIGHT_WALL = 3;
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MASK = 4;
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cells = mz_square_cells(rows, columns);
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for(cell = cells) {
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type = cell[2];
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translate([cell.x, cell.y] * cell_width) {
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if(type == TOP_WALL || type == TOP_RIGHT_WALL) {
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line2d([0, cell_width], [cell_width, cell_width], wall_thickness);
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}
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if(type == RIGHT_WALL || type == TOP_RIGHT_WALL) {
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line2d([cell_width, cell_width], [cell_width, 0], wall_thickness);
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}
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}
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}
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line2d([0, 0], [cell_width * columns, 0], wall_thickness);
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line2d([0, 0], [0, cell_width * rows], wall_thickness);
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