Wired Movies and Sprites

Adding an Event Handler to the Penguin

The AddPenguinTwoConditionalActions routine adds logic to our penguin. Using this routine, you can transform the penguin into a two-state button that plays/pauses the movie.

We are relying on the fact that a GetVariable for a variableID which has never been set will return 0. If we need another default value, we could initialize it using the frameLoaded event.

A higher level description of the logic is:



 
    On MouseUpInside

       If (GetVariable(DefaultTrack, 1) = 0)

          SetMovieRate(1)

          SetSpriteGraphicsMode(DefaultSprite, { blend, grey } )

          SetSpriteGraphicsMode(GetSpriteByID(DefaultTrack, 5), { 

                                ditherCopy, white } )

          SetVariable(DefaultTrack, 1, 1)

       ElseIf (GetVariable(DefaultTrack, 1) = 1)

          SetMovieRate(0)

          SetSpriteGraphicsMode(DefaultSprite, { ditherCopy, white })

          SetSpriteGraphicsMode(GetSpriteByID(DefaultTrack, 5), { blend, 

                                                    grey })

          SetVariable(DefaultTrack, 1, 0)

       Endif

    End