Data commit

Task/Peano-curve/Python/peano-curve.py

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+import turtle as tt
+import inspect
+
+stack = [] # Mark the current stacks in run.
+def peano(iterations=1):
+    global stack
+
+    # The turtle Ivan:
+    ivan = tt.Turtle(shape = "classic", visible = True)
+
+
+    # The app window:
+    screen = tt.Screen()
+    screen.title("Desenhin do Peano")
+    screen.bgcolor("#232323")
+    screen.delay(0) # Speed on drawing (if higher, more slow)
+    screen.setup(width=0.95, height=0.9)
+
+    # The size of each step walked (here, named simply "walk"). It's not a pixel scale. This may stay still:
+    walk = 1
+
+    def screenlength(k):
+        # A function to make the image good to see (without it would result in a partial image).
+        # This will guarantee that we can see the the voids and it's steps.
+        if k != 0:
+            length = screenlength(k-1)
+            return 2*length + 1
+        else: return 0
+
+    kkkj = screenlength(iterations)
+    screen.setworldcoordinates(-1, -1, kkkj + 1, kkkj + 1)
+    ivan.color("#EEFFFF", "#FFFFFF")
+
+
+    # The magic  \(^-^)/:
+    def step1(k):
+        global stack
+        stack.append(len(inspect.stack()))
+        if k != 0:
+            ivan.left(90)
+            step2(k - 1)
+            ivan.forward(walk)
+            ivan.right(90)
+            step1(k - 1)
+            ivan.forward(walk)
+            step1(k - 1)
+            ivan.right(90)
+            ivan.forward(walk)
+            step2(k - 1)
+            ivan.left(90)
+    def step2(k):
+        global stack
+        stack.append(len(inspect.stack()))
+        if k != 0:
+            ivan.right(90)
+            step1(k - 1)
+            ivan.forward(walk)
+            ivan.left(90)
+            step2(k - 1)
+            ivan.forward(walk)
+            step2(k - 1)
+            ivan.left(90)
+            ivan.forward(walk)
+            step1(k - 1)
+            ivan.right(90)
+
+    # Making the program work:
+    ivan.left(90)
+    step2(iterations)
+
+    tt.done()
+
+if __name__ == "__main__":
+    peano(4)
+    import pylab as P # This plot, after closing the drawing window, the "stack" graphic.
+    P.plot(stack)
+    P.show()