#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# this depends on the sequence of random numbers from the internal LCRNG
RANDOM=42
(( dice[RANDOM%6+1 + RANDOM%6+1]++ ))
echo ${dice[6]}

(( ++dice[RANDOM%6+1 + RANDOM%6+1] ))
echo ${dice[7]}

v=4
DIND=20

(( dice[DIND%6 + 1]=v ))
echo ${dice[3]}
(( dice[DIND/v]+=2 ))

RANDOM=42

(( dice[RANDOM%6+1 + RANDOM%6+1]+=v ))
echo ${dice[6]}

(( dice[RANDOM%6+1 + RANDOM%6+1]-=v ))
echo ${dice[7]}

(( dice[RANDOM%6+1 + RANDOM%6+1]+=2 ))
echo ${dice[8]}

(( dice[RANDOM%6+1 + RANDOM%6+1]*=2 ))
echo ${dice[5]}

unset dice1 dice2
RANDOM=42

for i in {1..5000}; do ((dice1[$RANDOM%6+1 + $RANDOM%6+1]++)); done;
unset t; for i in ${dice1[@]}; do ((t+=i)); done; echo $t

foo="${dice1[@]}"

RANDOM=42

for i in {1..5000}; do ((dice2[RANDOM%6+1 + RANDOM%6+1]++)); done;
unset t; for i in ${dice2[@]}; do ((t+=i)); done; echo $t

bar="${dice2[@]}"

if [ "$foo" != "$bar" ]; then
	echo "random sequences differ"
fi