| 46 | |
| 47 | |
| 48 | def drawSnakeHead(length): |
| 49 | turtle.begin_fill() |
| 50 | final_position = turtle.position() |
| 51 | turtle.left(90) |
| 52 | turtle.forward(length - THICKNESS) |
| 53 | turtle.left(90) |
| 54 | turtle.forward(THICKNESS * 3) |
| 55 | turtle.left(90) |
| 56 | turtle.forward(THICKNESS / 2.0) |
| 57 | turtle.right(90) # draw tongue |
| 58 | turtle.forward(THICKNESS) |
| 59 | turtle.right(45) |
| 60 | turtle.forward(THICKNESS / 3.0) |
| 61 | turtle.backward(THICKNESS / 3.0) |
| 62 | turtle.left(90) |
| 63 | turtle.forward(THICKNESS / 3.0) |
| 64 | turtle.backward(THICKNESS / 3.0) |
| 65 | turtle.right(45) |
| 66 | turtle.backward(THICKNESS) |
| 67 | turtle.left(90) # end tongue |
| 68 | turtle.forward(THICKNESS / 2.0) |
| 69 | turtle.left(90) |
| 70 | turtle.forward(THICKNESS * 2) |
| 71 | turtle.right(90) |
| 72 | turtle.forward(length - THICKNESS) |
| 73 | turtle.left(90) |
| 74 | turtle.forward(THICKNESS) |
| 75 | turtle.penup() |
| 76 | turtle.goto(final_position) |
| 77 | turtle.left(90) |
| 78 | turtle.forward(length - THICKNESS * 1.3) |
| 79 | turtle.left(90) |
| 80 | turtle.forward(THICKNESS * 1.5) |
| 81 | turtle.dot(8, 'black') # The snake's eye is black. |
| 82 | turtle.backward(THICKNESS * 1.5) |
| 83 | turtle.right(90) |
| 84 | turtle.backward(length - THICKNESS * 1.3) |
| 85 | turtle.right(90) |
| 86 | turtle.pendown() |
| 87 | turtle.end_fill() |
| 88 | |
| 89 | |
| 90 | def drawTwistUpSegment(length): |