tasks a-s

Task/Dragon-curve/Python/dragon-curve-1.py

@@ -0,0 +1,37 @@
+from turtle import *
+
+def dragon(step, length):
+    dcr(step, length)
+
+def dcr(step, length):
+    step -= 1
+    length /= 1.41421
+    if step > 0:
+        right(45)
+        dcr(step, length)
+        left(90)
+        dcl(step, length)
+        right(45)
+    else:
+        right(45)
+        forward(length)
+        left(90)
+        forward(length)
+        right(45)
+
+def dcl(step, length):
+    step -= 1
+    length /= 1.41421
+
+    if step > 0:
+        left(45)
+        dcr(step, length)
+        right(90)
+        dcl(step, length)
+        left(45)
+    else:
+        left(45)
+        forward(length)
+        right(90)
+        forward(length)
+        left(45)

Task/Dragon-curve/Python/dragon-curve-2.py

@@ -0,0 +1,18 @@
+from turtle import right, left, forward, speed, exitonclick, hideturtle
+
+def dragon(level=4, size=200, zig=right, zag=left):
+    if level <= 0:
+        forward(size)
+        return
+
+    size /= 1.41421
+    zig(45)
+    dragon(level-1, size, right, left)
+    zag(90)
+    dragon(level-1, size, left, right)
+    zig(45)
+
+speed(0)
+hideturtle()
+dragon(6)
+exitonclick() # click to exit

Task/Dragon-curve/Python/dragon-curve-3.py

@@ -0,0 +1,16 @@
+from turtle import right, left, forward, speed, exitonclick, hideturtle
+
+def dragon(level=4, size=200, direction=45):
+    if level:
+        right(direction)
+        dragon(level-1, size/1.41421356237, 45)
+        left(direction * 2)
+        dragon(level-1, size/1.41421356237, -45)
+        right(direction)
+    else:
+        forward(size)
+
+speed(0)
+hideturtle()
+dragon(6)
+exitonclick() # click to exit