Cours code.org en entier

Cours 1 Code.org/Lecon 11/Artist_01/public/create_img.py

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+import Image, ImageDraw
+import math
+import json
+import random
+import os
+
+def moveForward(length):
+    global current_x, current_y, current_heading, colour, current_width
+    next_x = current_x + length * math.sin(2 * math.pi * current_heading / 360);
+    next_y = current_y - length * math.cos(2 * math.pi * current_heading / 360);
+    if(down):
+      draw.line([current_x, current_y, next_x, next_y], colour, width=current_width)
+    current_x = next_x
+    current_y = next_y
+
+def moveBackward(length):
+    global current_x, current_y, current_heading, colour, current_width
+    next_x = current_x - length * math.sin(2 * math.pi * current_heading / 360);
+    next_y = current_y + length * math.cos(2 * math.pi * current_heading / 360);
+    if(down):
+      draw.line([current_x, current_y, next_x, next_y], colour, width=current_width)
+    current_x = next_x
+    current_y = next_y
+
+
+def jumpForward(length):
+  penUp()
+  moveForward(length)
+  penDown()
+
+def jumpBackward(length):
+  penUp()
+  moveBackward(length)
+  penDown()
+
+def turnRight(angle):
+  global current_heading
+  current_heading = (current_heading + angle) % 360;
+
+def turnLeft(angle):
+  global current_heading
+  current_heading = (current_heading - angle) % 360;
+  if (current_heading < 0):
+    current_heading += 360
+
+def penWidth(width):
+  global current_width
+  current_width = width
+
+def penUp():
+  global down
+  down = False
+
+def penDown():
+  global down
+  down = True
+
+def penColour(c):
+  global colour
+  colour = c
+
+def randomColour():
+  colour = "%06x" % random.randint(0, 0xFFFFFF)
+  return "#" + colour
+
+def penWidth(width):
+  global current_width
+  current_width = width
+
+
+#Main
+
+dir_path = os.path.dirname(os.path.realpath(__file__))
+data = ""
+with open(dir_path + '/turtle_config.json') as f:
+  data = json.load(f)
+
+width = data["width"]
+height = data["height"]
+current_x = data["startX"]
+current_y = data["startY"]
+current_heading = data["startAngle"]
+current_width = data["strokeWidth"]
+down = True
+colour = data["strokeColour"]
+
+
+# PIL create an empty image and draw object to draw on
+# memory only, not visible
+image1 = Image.new("RGBA", (width, height), (0,0,0,0))
+draw = ImageDraw.Draw(image1)
+
+# do the PIL image/draw (in memory) drawings
+for i in range(3):
+  turnLeft(120)
+  for j in range(3):
+    moveForward(100)
+    turnLeft(120)
+
+# PIL image can be saved as .png .jpg .gif or .bmp file (among others)
+filename = "solution.png"
+image1.save(filename)