Page 69 - 2616_V iCode_C-3
P. 69

To stop all sounds being played on all Sprites, use                       block.


                                   block clears all existing sound effects.

                 Events Blocks

                 An event is a happening which occurs due to some other things that happened before
                 it. So, Events blocks actually control how the blocks in a script will start to run, if

                 a particular action is done. Events blocks control events and the starting of scripts.
                 They are yellow in colour.


                                   block activates the script when the green flag or Go button is clicked.


                                           block activates  the  script  when


                   the chosen key is pressed. You can choose from the


                   given keys or you can choose the option any.


                                      block activates  the  script  when  you


                   click the Sprite.

                 Control Blocks

                 They have looping blocks which are used when the same blocks have to be repeated
                 for a number of times. The most commonly used control blocks are:


                                        The wait block pauses the running of the script for the number of


                 seconds given in the block. You can use this block when two move or speak blocks are

                 coming one after the other.



                    The repeat block repeats a set of blocks for a given number of

                   times. This block is also used to draw shapes where we have to

                   give the same blocks again and again for a number of times.


                                         The forever block keeps on repeating a set of blocks till the stop


                                         button is clicked. This block is similar to repeat block and expands


                                         automatically to accommodate the blocks you snap inside it.

                                                                                           More on Scratch    67
   64   65   66   67   68   69   70   71   72   73   74