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docs/lib3x-mz_tiles.md

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+# mz_tiles
+
+It turns maze cells into tiles. The retured tiles have a data structure `[x, y, n]`, where `n` is a tile index 0 ~ 15 of the tileset.
+
+![mz_tiles](images/lib3x-mz_tiles-1.JPG)
+
+Just replace the tiles with your own path designs.
+
+**Since:** 3.3
+
+## Parameters
+
+- `cells` : Maze cells.
+- `left_border` : Default to `true`. Create the leftmost border of the maze.
+- `bottom_border` : Default to `true`. Create the bottommost border of the maze.
+
+## Examples
+    
+	use <maze/mz_square_initialize.scad>
+	use <maze/mz_square.scad>
+	use <maze/mz_tiles.scad>
+	use <util/rand.scad>
+
+	rows = 10;
+	columns = 10;
+
+	cells = mz_square(rows, columns);
+
+	tiles = mz_tiles(cells);
+
+	tile_width = 30;
+	for(tile = tiles) {
+		translate([tile.x, tile.y] * tile_width)
+			tile(tile[2], tile_width);
+	}
+
+	module tile(type, width) {
+		// true 表示該方向有通道
+		roads = [
+			[false, false, false, false],
+			[true, false, false, false],
+			[false, true, false, false],
+			[true, true, false, false],
+			[false, false, true, false],
+			[true, false, true, false],
+			[false, true, true, false],
+			[true, true, true, false],
+			[false, false, false, true],
+			[true, false, false, true],
+			[false, true, false, true],
+			[true, true, false, true],
+			[false, false, true, true],
+			[true, false, true, true],
+			[false, true, true, true],
+			[true, true, true, true]
+		];
+
+		difference() {
+			square(width, center = true);
+		
+			for(i = [0:3]) {
+				if(roads[type][i]) {
+					rotate(-90 * i)
+					translate([-width / 4, -width / 4])
+						square([width / 2, width]);
+				}
+			}
+		}
+	}
+
+![mz_tiles](images/lib3x-mz_tiles-2.JPG)
+
+An advanced model.
+
+[![mz_tiles](images/lib3x-mz_tiles-3.JPG)](https://cults3d.com/en/3d-model/art/maze-city)