Work through 6/19
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hammurabi.c
237
hammurabi.c
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@ -8,14 +8,17 @@
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#include <libc.h>
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#include <stdio.h>
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/* Constants */
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#define MAXYEARS 10
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#define INITPOP 100
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#define INITGRAIN 2800
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#define INITLAND 1000
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/* Types */
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typedef enum {FALSE, TRUE} Boolean;
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typedef enum {BUY, SELL, FEED, PLANT, RESET, EXEC, CALC, QUIT} Plancmd;
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/* Message texts */
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char MSGDIV[] =
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"------------------------------<<<<>>>>-----------------------------------\n";
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@ -27,6 +30,19 @@ One person can farm ten acres of land.\n\
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One person needs to eat 20 bushels of grain per year to stay healthy.\n\
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";
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char MSGMENU[]=
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"You may use your grain to ...\n\
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(F)eed your people,\n\
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(P)lant crops on your land, or\n\
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(B)uy more land. \n\
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Or ...\n\
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(S)ell land to increase your grain.\n\
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You may also ...\n\
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(E)xecute your current plan,\n\
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(R)eset your current plan and start over, or\n\
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(Q)uit the game.\n\
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";
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char MSGSPLASH[] =
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" ___ ___ ___. .__ \n\
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/ | \\_____ _____ _____ __ ______________ \\_ |__ |__|\n\
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@ -52,12 +68,20 @@ char MSGSPLASH[] =
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':==:'\n\
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";
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/* Honorifics */
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#define MAXHONOR 9
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char *HONORIFIC[] = {"Great", "Mighty", "Wise", "Benevolent", "Merciful", "Just", "Sublime",
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"Glorious", "Serene", "Majestic"};
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/* Function prototypes */
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void completedterm(void);
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int inputbuy(void);
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int inputfood(void);
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int inputiexpr(void);
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int inputplant(void);
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int inputsell(void);
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void microcalc(void);
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Plancmd planmenu(void);
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Boolean planyear(void);
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void printdeposed(void);
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void printgreeting(void);
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@ -67,25 +91,30 @@ void printyearrept(void);
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Boolean scanyes(char *prompt);
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void setlandprice(void);
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/* Constant variables */
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int CONSCTL;
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/* Game state */
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int Year = 0;
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int Population = INITPOP;
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int Pop = INITPOP;
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int Grain = INITGRAIN;
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int Land = INITLAND;
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int StarvedTot = 0;
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int StarvedPctTot = 0;
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int consctl;
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/* Annual plan */
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int foodgrain, landsale, plantland;
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/* Annual events */
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int harvyield, landprice, newpop, plaguedeath, popfed, ratgrain, starvedeath, starvepct;
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int totstarved = 0, totstarvepct = 0;
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Boolean terminated = FALSE;
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void
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main(void)
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{
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consctl = open("/dev/consctl", OWRITE);
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if(consctl == -1) exits("can't open consctl: %r\n");
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CONSCTL = open("/dev/consctl", OWRITE);
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if(CONSCTL == -1) exits("can't open CONSCTL: %r\n");
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srand(time(0));
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print(MSGSPLASH);
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@ -122,11 +151,11 @@ main(void)
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}
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Grain = Grain + (plantland * harvyield) - ratgrain;
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newpop = (nrand(5) + 1) * (20 * Land + Grain) / Population / 100 + 1;
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newpop = (nrand(5) + 1) * (20 * Land + Grain) / Pop / 100 + 1;
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popfed = foodgrain / 20;
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starvedeath = ((popfed < Population) ? (Population - popfed) : 0);
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totstarved = totstarved + starvedeath;
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starvepct = 100 * starvedeath / Population;
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starvedeath = ((popfed < Pop) ? (Pop - popfed) : 0);
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StarvedTot = StarvedTot + starvedeath;
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starvepct = 100 * starvedeath / Pop;
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if(starvepct > 45)
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{
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printgreeting();
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@ -136,10 +165,10 @@ main(void)
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}
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else
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{
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totstarvepct = totstarvepct + starvepct;
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Population = Population + newpop - starvedeath;
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plaguedeath = ((nrand(100) < 15) ? (Population / 2) : 0);
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Population = Population - plaguedeath;
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StarvedPctTot = StarvedPctTot + starvepct;
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Pop = Pop + newpop - starvedeath;
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plaguedeath = ((nrand(100) < 15) ? (Pop / 2) : 0);
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Pop = Pop - plaguedeath;
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printgreeting();
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printyearrept();
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@ -155,11 +184,11 @@ main(void)
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void
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completedterm(void)
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{
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int avgstarvepct = totstarvepct / MAXYEARS;
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int landperperson = Land / Population;
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int likeassassination = Population * 0.8 * frand();
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int avgstarvepct = StarvedPctTot / MAXYEARS;
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int landperperson = Land / Pop;
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int likeassassination = Pop * 0.8 * frand();
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printgreeting();
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print("In your %d-year reign, %d people died of starvation, an average of %d people per year.\n", MAXYEARS, totstarved, avgstarvepct);
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print("In your %d-year reign, %d people died of starvation, an average of %d people per year.\n", MAXYEARS, StarvedTot, avgstarvepct);
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print("You started with %d acres per person and ended with %d acres per person.\n", INITLAND / INITPOP, landperperson);
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if(avgstarvepct > 33 || landperperson < 7) printdeposed();
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else if(avgstarvepct > 10 || landperperson < 9) print("Your heavy-handed performance smacks of Nero and Ivan IV. Your (surviving) people find you an unpleasant ruler, and, frankly, hate your guts!");
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@ -171,6 +200,49 @@ completedterm(void)
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else print("A fantastic performance! Charlemagne, Disraeli, and Jefferson combined could not have done better!");
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}
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int
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inputbuy(void)
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{
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int buy, grainbal, price;
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Boolean valid = FALSE;
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grainbal = Grain - foodgrain - (plantland / 2);
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do
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{
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print("The price of land is %d bushels per acre.\n", landprice);
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print("How many acres do you wish to buy? ");
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buy = inputiexpr();
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price = buy * landprice;
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if(buy < 0)
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print("Sire, it is impossible to buy a negative amount of land.\nIf you wish to sell land, enter \"0\", then select (S)ell from the menu.\n");
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else if(price > grainbal)
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print("Sire, %d acres of land costs %d bushels of grain, and you have only %d bushels.\n",
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buy, price, grainbal);
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else valid = TRUE;
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} while(valid == FALSE);
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return buy;
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}
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int
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inputfood(void)
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{
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int food, grainbal;
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Boolean valid = FALSE;
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grainbal = Grain + (landsale * landprice) - (plantland / 2);
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do
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{
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print("How much grain do you wish to give your people for food? ");
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food = inputiexpr();
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if(food < 0)
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print("Sire, it is impossible to give the people a negative amount of grain.\nEnter \"0\" to return to the menu.\n");
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else if(food > grainbal)
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print("Sire, you only have %d bushels of grain in the granaries.\n", grainbal);
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else valid = TRUE;
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} while(valid == FALSE);
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return food;
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}
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int
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inputiexpr(void)
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{
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@ -225,38 +297,147 @@ inputiexpr(void)
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return result;
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}
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int
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inputplant(void)
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{
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int grainbal, landbal, plant;
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Boolean valid = FALSE;
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grainbal = Grain - foodgrain + (landsale * landprice);
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landbal = Land + landsale;
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do
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{
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print("How many acres do you wish to plant? ");
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plant = inputiexpr();
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if(plant < 0)
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print("Sire, it is impossible to plant a negative amount of land.\nEnter \"0\" to return to the menu.\n");
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else if(plant > landbal) print("Sire, you have only %d acres of lands.\n", landbal);
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else if((plant / 2) > grainbal)
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print("Sire, you have only %d bushels of grain in the granaries.\n", grainbal);
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else if(plant > (10 * Pop)) print("Sire, you have only enough people to plant %d acres.\n", 10 * Pop);
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else valid = TRUE;
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} while(valid == FALSE);
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return plant;
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}
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int
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inputsell(void)
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{
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int landbal, sell, price;
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Boolean valid = FALSE;
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landbal = Land - plantland;
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do
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{
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print("The price of land is %d bushels per acre.\n", landprice);
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print("How many acres do you wish to sell? ");
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sell = inputiexpr();
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if(sell < 0)
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print("Sire, it is impossible to sell a negative amount of land.\nIf you wish to buy land, enter \"0\", then select (B)uy from the menu.\n");
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else if(sell > landbal) print("Sire, you have only %d acres of land.\n", landbal);
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else valid = TRUE;
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} while(valid == FALSE);
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return sell;
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}
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void
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microcalc(void)
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{
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}
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Plancmd
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planmenu(void)
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{
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int cmdch = 0;
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Plancmd cmd;
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if(foodgrain > 0 || landsale != 0 || plantland > 0)
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{
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print("You are currently planning ...\n");
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if(foodgrain > 0)
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print("to provide %d bushels of grain to feed the people\n", foodgrain);
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if(plantland > 0)
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print("to plant %d acres of land using %d bushels of grain for seed\n",
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plantland, plantland / 2);
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if(landsale > 0)
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print("to sell %d acres of land for %d bushels of grain\n", landsale,
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landsale * landprice);
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if(landsale < 0)
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print("to buy %d acres of land for %d bushels of grain\n", landsale * -1,
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landsale * landprice * -1);
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}
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print(MSGMENU);
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if(write(CONSCTL, "rawon", 5) != 5) exits("\ncan't turn off echo\n");
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while(cmdch == 0)
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{
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print("What is your choice? [fpbserq] ");
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cmdch = getchar();
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if(cmdch == EOF) exits("\nerror reading terminal input\n");
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print("%c\n", cmdch);
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switch(cmdch)
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{
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case 'b':
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cmd = BUY;
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break;
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case 'e':
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cmd = EXEC;
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break;
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case 'f':
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cmd = FEED;
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break;
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case 'p':
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cmd = PLANT;
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break;
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case 'q':
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cmd = QUIT;
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break;
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case 'r':
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cmd = RESET;
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break;
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case 's':
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cmd = SELL;
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break;
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default:
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cmdch = 0;
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}
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}
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if(write(CONSCTL, "rawoff", 6) != 6) exits("\ncan't turn on echo\n");
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return cmd;
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}
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Boolean
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planyear(void)
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{
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Boolean play = TRUE;
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Plancmd cmd;
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foodgrain = landsale = planland = 0;
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foodgrain = landsale = plantland = 0;
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do
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{
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cmd = planmenu();
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switch(cmd)
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{
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case BUY:
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landsale = -1 * inputbuy();
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break;
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case SELL:
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landsale = inputsell();
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break;
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case FEED:
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foodgrain = inputfood();
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break;
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case PLANT:
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plantland = inputplant();
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break;
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case RESET:
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foodgrain = landsale = planland = 0;
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foodgrain = landsale = plantland = 0;
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break;
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case EXEC:
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break;
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case CALC:
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ezintcalc();
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microcalc();
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break;
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case QUIT:
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play = FALSE;
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@ -288,7 +469,7 @@ printlandprice(void)
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void
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printstatus(void)
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{
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print("The population is %d.\n", Population);
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print("The population is %d.\n", Pop);
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print("You own %d acres.\n", Land);
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print("You have %d bushels of grain.\n", Grain);
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}
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@ -309,7 +490,7 @@ scanyes(char *prompt)
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{
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int in = 0;
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if(write(consctl, "rawon", 5) != 5) exits("\ncan't turn off echo\n");
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if(write(CONSCTL, "rawon", 5) != 5) exits("\ncan't turn off echo\n");
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while(in != 'y' && in != 'n')
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{
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print("%s [y/n] ", prompt);
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@ -317,7 +498,7 @@ scanyes(char *prompt)
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if(in == EOF) exits("\nerror reading terminal input\n");
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print("%c\n", in);
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}
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if(write(consctl, "rawoff", 6) != 6) exits("\ncan't turn on echo\n");
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if(write(CONSCTL, "rawoff", 6) != 6) exits("\ncan't turn on echo\n");
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print("\n");
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return (in == 'y' ? TRUE : FALSE);
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}
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