From 4035ed4e2f2a6b7e2af815834fce8a735e36afb7 Mon Sep 17 00:00:00 2001
From: "Peter J. Holzer" <hjp@wsr.ac.at>
Date: Sat, 29 Dec 2018 21:02:44 +0100
Subject: [PATCH] Add generator and call it

---
 Python/hilbertgenerator.py | 16 ++++++++++++++++
 Python/test2.py            |  6 ++++++
 2 files changed, 22 insertions(+)
 create mode 100755 Python/test2.py

diff --git a/Python/hilbertgenerator.py b/Python/hilbertgenerator.py
index b29b76b..7cbb1e1 100644
--- a/Python/hilbertgenerator.py
+++ b/Python/hilbertgenerator.py
@@ -43,3 +43,19 @@ def hilbert(center, x, y):
         hilbert(center + x - y,   x,   y)
         hilbert(center + x + y,  ~x,  ~y)
 
+
+def hilbertgenerator(center, x, y):
+    if abs(x) < 1:
+        yield center
+    else:
+        x /= 2
+        y /= 2
+        for r in hilbertgenerator(center - x + y, -~x, -~y):
+            yield r
+        for r in hilbertgenerator(center - x - y,   x,   y):
+            yield r
+        for r in hilbertgenerator(center + x - y,   x,   y):
+            yield r
+        for r in hilbertgenerator(center + x + y,  ~x,  ~y):
+            yield r
+
diff --git a/Python/test2.py b/Python/test2.py
new file mode 100755
index 0000000..6c893a9
--- /dev/null
+++ b/Python/test2.py
@@ -0,0 +1,6 @@
+#!/usr/bin/python3
+from hilbertgenerator import Vector, hilbertgenerator
+
+n = 8
+for r in hilbertgenerator(Vector(n, n), Vector(n, 0), Vector(0,n)):
+    print(r)