add tiled_lines

examples/tiled_lines.scad

@@ -0,0 +1,27 @@
+include <line2d.scad>;
+
+module tiled_lines(size, line_width = 1, step) {
+    sizexy = is_num(size) ? [size, size] : size;
+    s = is_undef(step) ? line_width * 2 : step;
+ 
+    module rand_diagonal_line(x, y, size) {
+        if(rands(0, 1, 1)[0] >= 0.5) {
+            line2d([x, y], [x + size, y + size], width = line_width);
+        } 
+        else {
+            line2d([x + size, y], [x, y + size], width = line_width);
+        }
+    } 
+    
+    for(x = [0:s:sizexy[0] - s]) {
+        for(y = [0:s:sizexy[1] - s]) {
+            rand_diagonal_line(x, y, s);    
+        }
+    }
+}
+
+size = [50, 25];
+line_width = 1;
+step = 2; 
+
+tiled_lines(size, line_width, step);