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    Let us take a look at some of the blocks from Block toolbar:

                          Scene  : It is used to modify the background of the game simulator. Some of the commonly
                     used blocks of this section are:
                       Screen width: It stores the value of the width of the screen.
                       Background image: It stores an image for the background.
                       Set Background Color: It is used to set the background colour.

                       Set Background Image: It is used to set an image as background.
                         Loops  : It is used to repeat a set of block multiple times.
                       Repeat: It is used to repeat the execution of a set of block multiple times.

                         Logic  : It is used to add conditional blocks to the program.
                       If-else: It is used to make decisions based on a condition. If the condition is true, then the if block
                       is executed otherwise else block will be executed.

                         Variables  : It is used to create variables.
                          Math  : It contains blocks to perform mathematical operations.

                     BUILDING A MUSIC PLAYER

                     Step  1   Open MakeCode, click on New Project. Write the name of project building a music
                               player, and click on Create.
                     Step  2   Click on Loops, and select repeat block, drag it to the workspace and drop the repeat
                               block to on start block.

                     Step  3   Change the value of 4 to 10 in the repeat block.

                     Step  4   In Music, select Play sound until done, it will appear on the workspace, and then drag
                               and drop the Play sound until done, block in the repeat block.

                     Step  5    When you click on the Start the simulator button, you will hear the music 10 times. The

                               loop repeats itself 10 times. The flow starts with 1 and with each iteration, it increments
                               the value by 1. Each time loop completes once iteration, and you will hear music once.

     162  Premium Edition-VII                                                    Techipedia (Microsoft MakeCode Arcade)  163

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