Initial upload of work-in-progress
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/*
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* hammurabi - ancient Sumerian city-state resource management game
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*
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* Copyright 2020 David Meyer <papa@sdf.org> +JMJ
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*
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*/
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#include <u.h>
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#include <libc.h>
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#include <ctype.h>
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#include <stdio.h>
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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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typedef enum {FALSE, TRUE} Boolean;
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char MSGDIV[] =
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"------------------------------<<<<>>>>-----------------------------------\n";
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char MSGHELP[] =
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"Help text here\n\
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Land price varies between 17 and 26 bushels of grain per acre.\n\
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Planting two acres requires one bushel of grain.\n\
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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 MSGSPLASH[] =
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" ___ ___ ___. .__ \n\
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/ | \\_____ _____ _____ __ ______________ \\_ |__ |__|\n\
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/ ~ \\__ \\ / \\ / \\| | \\_ __ \\__ \\ | __ \\| |\n\
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\\ Y // __ \\| Y Y \\ Y Y \\ | /| | \\// __ \\| \\_\\ \\ |\n\
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\\___|_ /(____ /__|_| /__|_| /____/ |__| (____ /___ /__|\n\
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\\/ \\/ \\/ \\/ \\/ \\/ \n\
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,.__.,\n\
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/,',.`.\\\n\
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____|:|db|:|____\n\
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___//\"\"\"|:|88|:|\"\"\"\\\\___\n\
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_____//\":=_=_=_=|--|=_=_=_=:\"\\\\_____\n\
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__/.-._//__|L_L_L_L|--|L_L_L_L|__\\\\_.-.\\__\n\
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//\"||m|:.-. .-. .-.,.__.,.-. .-. .-.:|m||\"\\\\\n\
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// ||8||: : L_L_L_/.',.`.\\_L_L_L : :||8|| \\\\\n\
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/'=======\"L.='.::'`:|:|db|:|:'`::.`=.L\"=======`\\\n\
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| .---. .--. |_:==' |:|88|:| `==:_| .--. .---. |\n\
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| | : |_.='/=======|:--:|=======\\`=._| : | |\n\
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| | _,=' ||==.=.==|:--:|==.=.==|| `=._ | |\n\
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|_:='_______|| || || |:--:| || || ||_______`=:_|\n\
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|| || || |:--:| || || ||\n\
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''-------|:--:|-------''\n\
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':==:'\n\
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";
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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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Boolean planyear(void);
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void printgreeting(void);
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void printlandprice(void);
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void printstatus(void);
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void printyearrept(void);
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Boolean scanyes(char *prompt);
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void setlandprice(void);
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int Year = 0;
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int Population = INITPOP;
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int Grain = INITGRAIN;
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int Land = INITLAND;
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int consctl;
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int foodgrain, landsale, plantland;
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int harvyield, landprice, newpop, plaguedeath, popfed, ratgrain, starvedeath, starvepct, year;
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int totstarved = 0, totstarvepct = 0;
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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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srand(time(0));
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print(MSGSPLASH);
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if(scanyes("Would you like instructions?") == TRUE) print(MSGHELP);
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printgreeting();
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printstatus();
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setlandprice();
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printlandprice();
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for(year = 1; year <= MAXYEARS; ++ year)
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{
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if(planyear() == TRUE)
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{
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Grain = Grain + (landsale * landprice) - (plantland / 2) - foodgrain;
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Land = Land - landsale;
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harvyield = nrand(5) + 1;
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switch(nrand(5)+1)
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{
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case 1:
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ratgrain = Grain;
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break;
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case 3:
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ratgrain = Grain / 3;
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break;
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case 5:
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ratgrain = Grain / 5;
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break;
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default:
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ratgrain = 0;
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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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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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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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/* impeachement check */
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printgreeting();
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printyearrept();
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}
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else break;
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}
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print("The end\n");
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exits(0);
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}
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Boolean
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planyear(void)
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{
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}
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void
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printgreeting(void)
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{
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print(MSGDIV);
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print("O %s One, I beg to report,\n", HONORIFIC[nrand(MAXHONOR + 1)]);
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}
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void
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printlandprice(void)
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{
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print("The price of land is %d bushels of grain per acre.\n", landprice);
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}
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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("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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void
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printyearrept(void)
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{
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print("In Year %d,\n", year);
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print("%d bushels were harvested per acre, for a total harvest of %d bushels.\n",
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harvyield, plantland * harvyield);
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if(ratgrain > 0) print("Rats ate %d bushels of grain.\n", ratgrain);
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if(newpop > 0) print("The population increased by %d.\n", newpop);
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}
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Boolean
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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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while(in != 'y' && in != 'n')
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{
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print("%s [y/n] ", prompt);
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in = getchar();
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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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print("\n");
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return (in == 'y' ? TRUE : FALSE);
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}
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void
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setlandprice(void)
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{
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landprice = nrand(10) + 17;
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}
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