Tutorial For Viewport?

Hello everyone,

Run into trouble using the viewport object. I triend implementing it into my game by copying the values from Andos work (http://click.andersriggelsen.dk/extensions.php) and substituting the various objects and sizes to my game. The background certainly moves with one character, but it wont allow both characters to constantly stay in the frame (like one can fall off the stage and it will not follow) which is what im using it for.

Just wondering if theres something I'm doing wrong, or better yet, a tutorial for using the viewport object? Thank you!

The object is simple. Instead of copying values from other examples, try to find out what each argument/parameter for the object does.
Each expression you input has a title that explains you what values it expects.

For example: The arguments for the 'Set source region (centered)' action:
Center-X coordinate
Center-Y coordinate
Width
Height

So which position on the screen do you wish to "zoom in" on?
The width and height of the source region will be the rectangle that will be stretched to fill the entire width and height of the viewport object. If the width and height of the source region is the same as the object's own width and height then there will be no zoom. If you make the source region smaller than that, then the small area will be stretched larger and giving you a zoom effect. If you make the source region larger you will get a zoom-out effect.

The ViewPort object doesn't have a 'set zoom percentage' action. Sorry if that confuses you, but this is more flexible.