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To do so, follow the given steps:


                        2   Click on  Pen option.  The Pen
                       block is added to the Code tab.


















                                                                          1  Click on the Add Extension button.



                 Now let us learn about some of the Pen blocks and what they are used for.
                 •             block erases everything drawn by the pen.


                 •   Clicking on         block creates a duplicate of the current Sprite. The image is stamped on
                   the stage. To see the image, click on the Sprite and drag. A duplicate of the Sprite appears
                   behind it.

                 •            block puts the pen up and stops the Sprite from drawing anything.

                 •  The Sprite draws a non-stop line wherever it moves using               .


                 •   Use                    block to set the colour of the pen to a colour of your choice from the
                   drop-down menu.


                 •                     block changes the pen colour,
                   saturation, brightness and transparency. Click on the
                   arrow  of the drop-down menu to select one of the
                   above mentioned four options of the pen effects. Click
                   on the text box to give a value by which the effect will
                   change or incement.

                 •                   block will set the pen colour, saturation, brightness and transparency to the
                   particular value given in the text box.


                  i +  DRAWING A POLYGON

                 Polygons are enclosed 2D shapes with three or more straight lines. Examples of polygons are
                 triangle, square, rectangle, quadrilateral, pentagon, octagon, etc.






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                                                                           Scratch Programming—Game Creation
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