Page 98 - ConceptGP_C5_Fb
P. 98

ADDING ONE MORE SPRITE                                                                                                                                               when     clicked
                                                                                                                                                                                                   go to x: –50  y: 10
                  We need one more sprite in the shape of an arrow that will point to the                                                           3  Type SpinningStopped in the New             set size to  90  %
                  wheel to show which section has been chosen. To add one more sprite,                                                             message name box and click on OK.               forever
                  Click on  Add a Sprite button and select Arrow1 sprite from the library.                  Arrow1                                                                                                      pressed?
                  Now click on the OK button.                                                                                                                                                       if      key space               then
                                                                                                                                                                                                       repeat   pick random 10  to  200

                                                                                                                                                                                                        turn   20  degrees
                            CODE THE WHEEL SPRITE

                  Now, after adding the sprites and the wheel, we will add the following code for the wheel.                                                                                          broadcast   Spinning Stopped
                  To add the code, follow the given steps:

                  Step  1    Click on the Wheel sprite and make it active.

                  Step  2    Click on the Code tab and create the adjoining block stack.                                                                                                               4  Add this block to the code of
                                                                                                                                                                                                      Wheel sprite after the repeat block.
                                                  when    clicked
                                                  go to x: –50  y: 10                                                                                  CODE THE ARROW1 SPRITE
                                                  set size to  90  %
                                                  forever                                                                                   After broadcasting the message for the wheel, we need to add code             when       clicked
                                                                                                                                            for the arrow sprite too. To add the code, follow the given steps:
                                                   if   key space    pressed?   then                                                                                                                                     go to x:   –140  y:  30
                                                                                                                                            Step  1   Click on the Wheel Sprite and make it active.
                                                      repeat   pick random 10  to  200                                                                                                                                   set size to  80  %
                                                                                                                                            Step  2    Click on the Code tab and create the given code blocks.
                                                       turn   20  degrees


                                                                                                                                                       CREATING A VARIABLE FOR THE GAME

                                                                                                                                            To create a variable, follow the given steps:

                  ADDING BROADCAST BLOCK
                                                                                                                                                 2  Choose Make
                  To send messages between the sprites, use the broadcast block from the Events section.                                        a Variable from                                              3  Type Winner in the
                  To add the broadcast block, follow the given steps:                                                                           the Variables                                               New variable name box.

                                                                                                                                                section.

                                      1  Drag a broadcast message1
                                      block into the code area.


                                     broadcast message1



                                        New message                    2  Select the  New Message                                                1  Click on
                                                                      option from the drop-down list.                                           Variables block.
                                        message1

                                                                                                                                                                                                                        4  Click on OK button.


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