The Dink Network

Make a global called &last_map. Then place on the adjoining four screens a sprite with the following script:

void main(void)
{
&last_map = &player_map;
}

Then on the screen with the knight:

void main(void)
{
if (&last_map == xyz)
{
//screen north
sp_dir(&sprite, 8);
}
if (&last_map == xyz)
{
//screen east
sp_dir(&sprite, 6);
}
if (&last_map == xyz)
{
//screen south
sp_dir(&sprite, 2);
}
if (&last_map == xyz)
{
//screen west
sp_dir(&sprite, 4);
}
//other code
}

Where xyz are the numbers of the four adjoining screens. Of course, the number of the screen north should be placed in the if statement of the northern screen.