Working Example

This example may look little artificial. We'll be able to make it better after getting familiar with iterations and loops. Anyway, let's make a simple cartoon where a boy character is walking for 5 seconds and every half a second he will do some actions. He will wink with his right eye until reaching the screen center, and then he'll say "Switch" and start winking with his left eye:

#include <boy.h>

void DoWinking ( Boy &Who )

{

if ( Who.GetX () < -0.1 )

{

Who.WinksLeft ();

}

else if ( Who.GetX () > 0.1 )

{

Who.WinksRight ();

}

else

{

Who.Says ( "Switch" );

Sleep ( 0.5 );

}

}

void Scene1 ()

{

Image Back ( "backgrounds/landscape.svg" );

Back.SetVisible ();

Boy Max;

Max.SetVisible ( true );

Max.SetPos ( 200, 290 );

Max.GoesTo ( -200, 290 , 5 );

SetTime ( 0 );

DoWinking ( Max );

DoWinking ( Max );

DoWinking ( Max );

DoWinking ( Max );

DoWinking ( Max );

DoWinking ( Max );

DoWinking ( Max );

DoWinking ( Max );

DoWinking ( Max );

DoWinking ( Max );

}

Please note that we compare results of method GetX with 0.1 and -01 , not with zero. This is because GetX returns a double value, not an int . During floating point operations precision may be lost a little bit and we do not want to miss the moment when character should say "Switch" . You should see the following movie: