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Task/Maze-generation/Sidef/maze-generation.sidef

@@ -0,0 +1,33 @@
+var(w:5, h:5) = ARGV.map{.to_i}...
+var avail = (w * h)
+
+# cell is padded by sentinel col and row, so I don't check array bounds
+var cell = (1..h -> map {([true] * w) + [false]} + [[false] * w+1])
+var ver  = (1..h -> map {["|  "] * w })
+var hor  = (0..h -> map {["+--"] * w })
+
+func walk(x, y) {
+    cell[y][x] = false;
+    avail-- > 0 || return;  # no more bottles, er, cells
+
+    var d = [[-1, 0], [0, 1], [1, 0], [0, -1]]
+    while (!d.is_empty) {
+        var i = d.pop_rand
+        var (x1, y1) = (x + i[0], y + i[1])
+
+        cell[y1][x1] || next
+
+        if (x == x1) { hor[[y1, y].max][x] = '+  ' }
+        if (y == y1) { ver[y][[x1, x].max] = '   ' }
+        walk(x1, y1)
+    }
+}
+
+walk(w.rand.int, h.rand.int)   # generate
+
+for i in (0 .. h) {
+    say (hor[i].join('') + '+')
+    if (i < h) {
+        say (ver[i].join('') + '|')
+    }
+}