feat: Turtle.BoardFractal ( Fixes #142 )

Author: StartAutomating

Types/Turtle/BoardFractal.ps1

@@ -0,0 +1,30 @@
+<#
+.SYNOPSIS
+    Draws a Board
+.DESCRIPTION
+    Draws a Board, using an L-System
+.LINK
+    https://paulbourke.net/fractals/lsys/
+.EXAMPLE
+    turtle BoardFractal 42 1
+.EXAMPLE
+    turtle BoardFractal 42 2
+.EXAMPLE
+    turtle BoardFractal 42 3
+.EXAMPLE
+    turtle BoardFractal 42 4
+#>
+param(
+# The size of each segment
+[double]$Size = 200,
+# The order of magnitude (the number of expansions)
+[int]$Order = 4,
+# The default angle.
+[double]$Angle = 90
+)
+return $this.LSystem('F+F+F+F',  [Ordered]@{
+    F = 'FF+F+F+F+FF'
+}, $Order, [Ordered]@{
+    '\+'    = { $this.Rotate($Angle) }
+    'F'     = { $this.Forward($Size) }
+})