Hmmm, my init.aix looks different ?
And the value is always 1.0 ?
################################################## ###############
###################### Difficulty parameters ####################
# Note: difficulty is in range 0.0 - 1.0 with 0.0 being no difficulty (sensor doesn't exist)
# for non-merchants
VISUAL_DIFFICULTY = 1.0;
HYDROPHONE_DIFFICULTY = 1.0;
RADAR_DIFFICULTY = 1.0;
SONAR_DIFFICULTY = 1.0;
# for merchants
VISUAL_DIFFICULTY_MERCHANT = 1.0;
HYDROPHONE_DIFFICULTY_MERCHANT = 1.0;
RADAR_DIFFICULTY_MERCHANT = 1.0;
SONAR_DIFFICULTY_MERCHANT = 1.0;