ID:177074
 
how can i have a large map and still have normal tile size so i can scroll around the map by walking?
Unless I've misunderstood your question, this is default behaviour; the map will, by default, scroll around keeping the player's mob in the centre.
In response to Crispy
That is true unless the map is 21x21 or smaller (or perhaps 22x22, I can't recall exactly). You can force it to keep the tiles the same size by setting the worlds view var. If the map is larger than 21x21, world.view should default to a value of about 5 which allows you to see 5 tiles away.