Page 99 - Trackpad v5 class 4
P. 99

DRAWING SHAPES

            We have learnt how to control sprites in the previous chapter. In this chapter, we will learn
            about creating shapes. Thus, we can repeat the actions of a stack of blocks by making use

            of the various blocks in the Control block category.


            PEN BLOCK

            Pen blocks provide a trail for the sprite and give instructions to change the colour, size
            and shade of the trail. These blocks are colour-coded as dark green and used to draw

            shapes in Scratch. Let us read pen blocks and their functions.


                               Blocks                                           Functions




                    pen down                                It places the pen in the down position.



                    pen up                                 It disables  drawing operations  by  lifting  the
                                                           pen.

                    set pen color to                        It specifies the colour to be used while drawing.



                    Change pen color          by 10        It modifies the colour of a line.



                                                           It modifies the thickness of the pen. You can
                                                           also change the thickness  by writing the
                    Change pen by  1
                                                           desired number in the number box, number 1
                                                           being the least thick.


                    stamp                                   It draws or stamps the image of a sprite onto
                                                            the stage.


                    erase all                              It erases the pen marks from the stage.




            Drawing A Line
            To draw a line, follow the given steps:


            Step  1    Click the Motion button to display the Motion Blocks.

            Step  2    Drag a  when     clicked   block to the scripts area from the Events menu.



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