The Environment

The environment is a simple 2-dimensional grid as before. This is realized in the file czs2_environment (cf. 16.1). After loading this file into the scilab console one can define a variable $GRID$ with a predefined test grid $GD3O2F1$ from the environment file:

--> GRID=GD3O2F1
 GRID  =
!.  .  .  !
!O  O  .  !
!.  F  .  !

The environment file allows much more types of environments. But for the discussion here it is sufficient to use such a simple grid with $3 \times 3$ many cells filled with two objects (O) and one food (F).

A position (POS) in the grid is given by an x and y coordinate as $GRID(3,2)$ designating the field with the food. A property (PROP) is given as an attribute associated with a position in the grid. In the example we have the property food (F) attached to the position $GRID(3,2)$. The environment then is a collection of such positions with possible attributes; other attributes than food are object (O) as well as empty space ('.').