Tile Based Game

I was wondering, if this is a good method to make a tile based game like Pokemon:

1. Create a .txt file with the map contents. It will be full of numbers, each indicating what should belong there.
2. Create textures and sprites for everything im going to use.
3. Start rendering...
4. Every step that my character takes in one direction, I will remove 1 row of tiles, from one side, and add one row of tiles to the opposite side

Is this a good method, or is there something better?

Im trying to make this game look like Pokemon...thats why Im asking this question.

Any help at all?