Information Technology Reference
In-Depth Information
0
N
x
0
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#
#
#
T
#
####
A
#
#
1
#
#
#
#
T
#
#
#
#
T
#
#
2
#
#
#
#
#
N
y
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Figure 9.12:
Schematics of the Tileworld environment (A = agent, # =
obstacle, T = tile,
digit
= hole).
time, i. e., a conversion from simulation time (time steps) into real
time (seconds, minutes, etc.) is not defined in a meaningful manner.
Macro-level: Environment
The Tileworld environment is modeled as rectangular grid of equal-
sized cells (see Figure 9.12). Each cell is uniquely identified by its (
x, y
)-
coordinates, with the origin (0
,
0) being in the upper-left corner. The
environment extends from 0 to
N
x
in horizontal direction, and from 0
to
N
y
in vertical direction. Therefore, the size of the environment is
(
N
x
+1)
(
N
y
+ 1) cells.
The cells of the environment are distinguished into three different
types:
×
Normal
area
No speciality. Agents may walk here.
