# Paste: HAMURABI

Author: mrjbq7 factor Wed, 4 Aug 2010 00:26:27
Plain Text |
```! Copyright (C) 2010 John Benediktsson

USING: accessors combinators combinators.short-circuit
continuations formatting fry io kernel math math.functions
math.order math.parser math.ranges random sequences strings ;

IN: hamurabi

<PRIVATE

TUPLE: game year population births deaths stores harvest yield
plague acres eaten cost feed planted birth-factor rat-factor
total-births total-deaths ;

: <game> ( -- game )
game new
0 >>year
95 >>population
5 >>births
0 >>deaths
2800 >>stores
3000 >>harvest
3 >>yield
f >>plague
0 >>cost
dup births>> >>total-births
dup deaths>> >>total-deaths
dup births>> '[ _ + ] change-population
dup [ harvest>> ] [ yield>> ] bi / >>acres
dup [ harvest>> ] [ stores>> ] bi - >>eaten ;

: #acres-available ( game -- n )
[ stores>> ] [ cost>> ] bi /i ;

: #acres-per-person ( game -- n )
[ acres>> ] [ population>> ] bi / ;

: #harvested ( game -- n )
[ planted>> ] [ yield>> ] bi * ;

: #eaten ( game -- n )
dup rat-factor>> odd?
[ [ stores>> ] [ rat-factor>> ] bi / ] [ drop 0 ] if ;

: #stored ( game -- n )
[ harvest>> ] [ eaten>> ] bi - ;

: #percent-died ( game -- n )
[ total-deaths>> ] [ total-births>> ] [ year>> ] tri / / ;

: #births ( game -- n )
{
[ acres>> 20 * ]
[ stores>> + ]
[ birth-factor>> * ]
[ population>> / ]
} cleave 100 /i 1 + ;

: #starved ( game -- n )
[ population>> ] [ feed>> 20 /i ] bi - 0 max ;

: leave-fink ( -- )
"DUE TO THIS EXTREME MISMANAGEMENT YOU HAVE NOT ONLY" print
"BEEN IMPEACHED AND THROWN OUT OF OFFICE BUT YOU HAVE" print
"ALSO BEEN DECLARED 'NATIONAL FINK' !!" print ;

: leave-starved ( game -- game )
dup deaths>> "YOU STARVED %d PEOPLE IN ONE YEAR!!!\n" printf
leave-fink "exit" throw ;

: leave-nero ( -- )
"YOUR HEAVY-HANDED PERFORMANCE SMACKS OF NERO AND IVAN IV." print
"THE PEOPLE (REMAINING) FIND YOU AN UNPLEASANT RULER, AND" print
"FRANKLY, HATE YOUR GUTS!" print ;

: leave-not-too-bad ( game -- game )
"YOUR PERFORMANCE COULD HAVE BEEN SOMEWHAT BETTER, BUT" print
"REALLY WASN'T TOO BAD AT ALL." print
dup population>> 4/5 * floor [0,b] random
"%d PEOPLE WOULD DEARLY LIKE TO SEE YOU ASSASSINATED\n" printf
"BUT WE ALL HAVE OUR TRIVIAL PROBLEMS" print ;

: leave-best ( -- )
"A FANTASTIC PERFORMANCE!!!  CHARLEMANGE, DISRAELI, AND" print
"JEFFERSON COMBINED COULD NOT HAVE DONE BETTER!" print ;

: leave ( game -- )
dup [ #percent-died ] [ #acres-per-person ] bi
{
{ [ 2dup [ 33 > ] [ 7 < ] bi* or ] [ leave-fink ] }
{ [ 2dup [ 10 > ] [ 9 < ] bi* or ] [ leave-nero ] }
{ [ 2dup [ 3 > ] [ 10 < ] bi* or ] [ leave-not-too-bad ] }
[ leave-best ]
} cond 3drop ;

: check-number ( n -- )
{ [ f eq? ] [ 0 < ] [ fixnum? not ] } 1|| [
"HAMURABI:  I CANNOT DO WHAT YOU WISH." print
"GET YOURSELF ANOTHER STEWARD!!!!!" print
"exit" throw
] when ;

: input ( prompt -- n/f )
write flush readln string>number [ check-number ] keep ;

: bad-stores ( game -- )
stores>>
"HAMURABI:  THINK AGAIN. YOU HAVE ONLY" print
"%d BUSHELS OF STORES. NOW THEN," printf nl ;

: bad-acres ( game -- )
acres>>
"HAMURABI:  THINK AGAIN. YOU ONLY OWN %d ACRES. NOW THEN,"
printf nl ;

: bad-population ( game -- )
population>>
"BUT YOU HAVE ONLY %d PEOPLE TO TEND THE FIELDS. NOW THEN,"
printf nl ;

: check-error ( game n error -- game n ? )
{
{ "acres" [ over bad-acres t ] }
{ "stores" [ over bad-stores t ] }
{ "population" [ over bad-population t ] }
[ drop f ]
} case ;

: adjust-acres ( game n -- game )
[ '[ _ + ] change-acres ]
[ over cost>> * '[ _ - ] change-stores ] bi ;

: buy-acres ( game -- game )
"HOW MANY ACRES DO YOU WISH TO BUY? " input
over #acres-available dupd > "stores" and check-error
[ drop buy-acres ] [ adjust-acres ] if ;

: sell-acres ( game -- game )
"HOW MANY ACRES DO YOU WISH TO SELL? " input
over acres>> dupd >= "acres" and check-error
[ drop sell-acres ] [ neg adjust-acres ] if nl ;

: trade-land ( game -- game )
dup cost>> "LAND IS TRADING AT %d BUSHELS PER ACRE.\n" printf

: feed-people ( game -- game )
"HOW MANY BUSHELS DO YOU WISH TO FEED YOUR PEOPLE? " input
over stores>> dupd > "stores" and check-error
[ drop feed-people ] [
[ >>feed ] [ '[ _ - ] change-stores ] bi
] if nl ;

: plant-seeds ( game -- game )
"HOW MANY ACRES DO YOU WISH TO PLANT WITH SEED? " input {
{ [ over acres>> dupd > ] [ "acres" ] }
{ [ over stores>> 2 * dupd > ] [ "stores" ] }
{ [ over population>> 10 * dupd > ] [ "population" ] }
[ f ]
} cond check-error [ drop plant-seeds ] [
[ >>planted ] [ 2/ '[ _ - ] change-stores ] bi
] if nl ;

: report-status ( game -- game )
"HAMURABI:  I BEG TO REPORT TO YOU," print
dup [ year>> ] [ deaths>> ] [ births>> ] tri
"IN YEAR %d, %d PEOPLE STARVED, %d CAME TO THE CITY\n" printf
dup plague>> [
"A HORRIBLE PLAGUE STRUCK!  HALF THE PEOPLE DIED." print
] when
dup population>> "POPULATION IS NOW %d.\n" printf
dup acres>> "THE CITY NOW OWNS %d ACRES.\n" printf
dup yield>> "YOU HARVESTED %d BUSHELS PER ACRE.\n" printf
dup eaten>> "RATS ATE %d BUSHELS.\n" printf
dup stores>> "YOU NOW HAVE %d BUSHELS IN STORE.\n\n" printf ;

: update-randomness ( game -- game )
17 26 [a,b] random >>cost
5 [1,b] random >>yield
5 [1,b] random >>birth-factor
5 [1,b] random >>rat-factor
100 random 15 < >>plague ;

: update-stores ( game -- game )
dup #harvested >>harvest
dup #eaten >>eaten
dup #stored '[ _ + ] change-stores ;

: update-births ( game -- game )
dup #births
[ >>births ]
[ '[ _ + ] change-total-births ]
[ '[ _ + ] change-population ] tri ;

: update-deaths ( game -- game )
dup #starved
[ >>deaths ]
[ '[ _ + ] change-total-deaths ]
[ '[ _ - ] change-population ] tri ;

: check-plague ( game -- game )
dup plague>> [ [ 2/ ] change-population ] when ;

: check-starvation ( game -- game )
dup [ deaths>> ] [ population>> 0.45 * ] bi >
[ leave-starved ] when ;

: year ( game -- game )
[ 1 + ] change-year
report-status
update-randomness
feed-people
plant-seeds
update-stores
update-births
update-deaths
check-plague
check-starvation ;

: spaces ( n -- )
CHAR: \s <string> write ;

: welcome ( -- )
32 spaces "HAMURABI" print
15 spaces "CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY" print
nl nl nl
"TRY YOUR HAND AT GOVERNING ANCIENT SUMERIA" print
"SUCCESSFULLY FOR A TEN-YEAR TERM OF OFFICE" print nl ;

: finish ( game -- )
dup #percent-died
"IN YOUR 10-YEAR TERM OF OFFICE, %d PERCENT OF THE\n" printf
"POPULATION STARVED PER YEAR ON AVERAGE, I.E., A TOTAL OF" print
dup total-deaths>> "%d PEOPLE DIED!!\n" printf
"YOU STARTED WITH 10 ACRES PER PERSON AND ENDED WITH" print
dup #acres-per-person "%d ACRES PER PERSON\n" printf
nl leave nl "SO LONG FOR NOW." print ;

PRIVATE>

! FIXME: "exit" throw is used to break early, perhaps use bool?

: hamurabi ( -- )
welcome <game> [
10 [ year ] times finish
] [ 2drop ] recover ;

MAIN: hamurabi```