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[dragonfly.git] / games / phantasia / misc.c

/*
 * misc.c  Phantasia miscellaneous support routines
 *
 * $FreeBSD: src/games/phantasia/misc.c,v 1.7 1999/11/16 02:57:34 billf Exp $
 * $DragonFly: src/games/phantasia/misc.c,v 1.7 2006/09/09 02:21:49 pavalos Exp $
 */

#include <string.h>
#include "include.h"

/* functions which we need to know about */
/* gamesupport.c */
extern  void    enterscore(void);
/* io.c */
extern  int     getanswer(const char *, bool);
extern  double  infloat(void);
extern  void    more(int);
/* main.c */
extern  void    cleanup(bool);
/* phantglobs.c */
extern  double  drandom(void);

void    movelevel(void);
const char      *descrlocation(struct player *, bool);
void    tradingpost(void);
void    displaystats(void);
void    allstatslist(void);
const char      *descrtype(struct player *, bool);
long    findname(char *, struct player *);
long    allocrecord(void);
void    freerecord(struct player *, long);
void    leavegame(void);
void    death(const char *);
void    writerecord(struct player *, long);
double  explevel(double);
void    truncstring(char *);
void    altercoordinates(double, double, int);
void    readrecord(struct player *, long);
void    adjuststats(void);
void    initplayer(struct player *);
void    readmessage(void);
void    error(const char *);
double  distance(double, double, double, double);
void    ill_sig(int);
const char      *descrstatus(struct player *);
void    collecttaxes(double, double);

/************************************************************************
/
/ FUNCTION NAME: movelevel()
/
/ FUNCTION: move player to new level
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS: none
/
/ RETURN VALUE: none
/
/ MODULES CALLED: death(), floor(), wmove(), drandom(), waddstr(), explevel()
/
/ GLOBAL INPUTS: Player, *stdscr, *Statptr, Stattable[]
/
/ GLOBAL OUTPUTS: Player, Changed
/
/ DESCRIPTION:
/       Use lookup table to increment important statistics when
/       progressing to new experience level.
/       Players are rested to maximum as a bonus for making a new
/       level.
/       Check for council of wise, and being too big to be king.
/
*************************************************************************/

void
movelevel(void)
{
struct charstats        *statptr;       /* for pointing into Stattable */
double  new;                    /* new level */
double  inc;                    /* increment between new and old levels */

    Changed = TRUE;

    if (Player.p_type == C_EXPER)
        /* roll a type to use for increment */
        statptr = &Stattable[(int) ROLL(C_MAGIC, C_HALFLING - C_MAGIC + 1)];
    else
        statptr = Statptr;

    new = explevel(Player.p_experience);
    inc = new - Player.p_level;
    Player.p_level = new;

    /* add increments to statistics */
    Player.p_strength += statptr->c_strength.increase * inc;
    Player.p_mana += statptr->c_mana.increase * inc;
    Player.p_brains += statptr->c_brains.increase * inc;
    Player.p_magiclvl += statptr->c_magiclvl.increase * inc;
    Player.p_maxenergy += statptr->c_energy.increase * inc;

    /* rest to maximum upon reaching new level */
    Player.p_energy = Player.p_maxenergy + Player.p_shield;

    if (Player.p_crowns > 0 && Player.p_level >= 1000.0)
        /* no longer able to be king -- turn crowns into cash */
        {
        Player.p_gold += ((double) Player.p_crowns) * 5000.0;
        Player.p_crowns = 0;
        }

    if (Player.p_level >= 3000.0 && Player.p_specialtype < SC_COUNCIL)
        /* make a member of the council */
        {
        mvaddstr(6, 0, "You have made it to the Council of the Wise.\n");
        addstr("Good Luck on your search for the Holy Grail.\n");

        Player.p_specialtype = SC_COUNCIL;

        /* no rings for council and above */
        Player.p_ring.ring_type = R_NONE;
        Player.p_ring.ring_duration = 0;

        Player.p_lives = 3;             /* three extra lives */
        }

    if (Player.p_level > 9999.0 && Player.p_specialtype != SC_VALAR)
        death("Old age");
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: descrlocation()
/
/ FUNCTION: return a formatted description of location
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS:
/       struct player playerp - pointer to player structure
/       bool shortflag - set if short form is desired
/
/ RETURN VALUE: pointer to string containing result
/
/ MODULES CALLED: fabs(), floor(), sprintf(), distance()
/
/ GLOBAL INPUTS: Databuf[]
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       Look at coordinates and return an appropriately formatted
/       string.
/
*************************************************************************/

const char *
descrlocation(struct player *playerp, bool shortflag)
{
double  circle;                 /* corresponding circle for coordinates */
int     quadrant;       /* quadrant of grid */
const char      *label;         /* pointer to place name */
static const    char    *nametable[4][4] =   /* names of places */
        {
        {"Anorien",     "Ithilien",     "Rohan",        "Lorien"},
        {"Gondor",      "Mordor",       "Dunland",      "Rovanion"},
        {"South Gondor", "Khand",       "Eriador",      "The Iron Hills"},
        {"Far Harad",   "Near Harad",   "The Northern Waste", "Rhun"}
        };

    if (playerp->p_specialtype == SC_VALAR)
        return(" is in Valhala");
    else if ((circle = CIRCLE(playerp->p_x, playerp->p_y)) >= 1000.0)
        {
        if (MAX(fabs(playerp->p_x), fabs(playerp->p_y)) > D_BEYOND)
            label = "The Point of No Return";
        else
            label = "The Ashen Mountains";
        }
    else if (circle >= 55)
        label = "Morannon";
    else if (circle >= 35)
        label = "Kennaquahair";
    else if (circle >= 20)
        label = "The Dead Marshes";
    else if (circle >= 9)
        label = "The Outer Waste";
    else if (circle >= 5)
        label = "The Moors Adventurous";
    else
        {
        if (playerp->p_x == 0.0 && playerp->p_y == 0.0)
            label = "The Lord's Chamber";
        else
            {
            /* this expression is split to prevent compiler loop with some compilers */
            quadrant = ((playerp->p_x > 0.0) ? 1 : 0);
            quadrant += ((playerp->p_y >= 0.0) ? 2 : 0);
            label = nametable[((int) circle) - 1][quadrant];
            }
        }

    if (shortflag)
        sprintf(Databuf, "%.29s", label);
    else
        sprintf(Databuf, " is in %s  (%.0f,%.0f)", label, playerp->p_x, playerp->p_y);

    return(Databuf);
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: tradingpost()
/
/ FUNCTION: do trading post stuff
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS: none
/
/ RETURN VALUE: none
/
/ MODULES CALLED: writerecord(), adjuststats(), fabs(), more(), sqrt(),
/       sleep(), floor(), wmove(), drandom(), wclear(), printw(),
/       altercoordinates(), infloat(), waddstr(), wrefresh(), mvprintw(), getanswer(),
/       wclrtoeol(), wclrtobot()
/
/ GLOBAL INPUTS: Menu[], Circle, Player, *stdscr, Fileloc, Nobetter[]
/
/ GLOBAL OUTPUTS: Player
/
/ DESCRIPTION:
/       Different trading posts have different items.
/       Merchants cannot be cheated, but they can be dishonest
/       themselves.
/
/       Shields, swords, and quicksilver are not cumulative.  This is
/       one major area of complaint, but there are two reasons for this:
/               1) It becomes MUCH too easy to make very large versions
/                  of these items.
/               2) In the real world, one cannot simply weld two swords
/                  together to make a bigger one.
/
/       At one time, it was possible to sell old weapons at half the purchase
/       price.  This resulted in huge amounts of gold floating around,
/       and the game lost much of its challenge.
/
/       Also, purchasing gems defeats the whole purpose of gold.  Gold
/       is small change for lower level players.  They really shouldn't
/       be able to accumulate more than enough gold for a small sword or
/       a few books.  Higher level players shouldn't even bother to pick
/       up gold, except maybe to buy mana once in a while.
/
*************************************************************************/

void
tradingpost(void)
{
double  numitems;       /* number of items to purchase */
double  cost;           /* cost of purchase */
double  blessingcost;   /* cost of blessing */
int     ch;             /* input */
int     size;   /* size of the trading post */
int     loop;   /* loop counter */
int     cheat = 0;      /* number of times player has tried to cheat */
bool    dishonest = FALSE;/* set when merchant is dishonest */

    Player.p_status = S_TRADING;
    writerecord(&Player, Fileloc);

    clear();
    addstr("You are at a trading post. All purchases must be made with gold.");

    size = sqrt(fabs(Player.p_x / 100)) + 1;
    size = MIN(7, size);

    /* set up cost of blessing */
    blessingcost = 1000.0 * (Player.p_level + 5.0);

    /* print Menu */
    move(7, 0);
    for (loop = 0; loop < size; ++loop)
        /* print Menu */
        {
        if (loop == 6)
            cost = blessingcost;
        else
            cost = Menu[loop].cost;
        printw("(%d) %-12s: %6.0f\n", loop + 1, Menu[loop].item, cost);
        }

    mvprintw(5, 0, "L:Leave  P:Purchase  S:Sell Gems ? ");

    for (;;)
        {
        adjuststats();  /* truncate any bad values */

        /* print some important statistics */
        mvprintw(1, 0, "Gold:   %9.0f  Gems:  %9.0f  Level:   %6.0f  Charms: %6d\n",
            Player.p_gold, Player.p_gems, Player.p_level, Player.p_charms);
        printw("Shield: %9.0f  Sword: %9.0f  Quicksilver:%3.0f  Blessed: %s\n",
            Player.p_shield, Player.p_sword, Player.p_quksilver,
            (Player.p_blessing ? " True" : "False"));
        printw("Brains: %9.0f  Mana:  %9.0f", Player.p_brains, Player.p_mana);

        move(5, 36);
        ch = getanswer("LPS", FALSE);
        move(15, 0);
        clrtobot();
        switch(ch)
            {
            case 'L':           /* leave */
            case '\n':
                altercoordinates(0.0, 0.0, A_NEAR);
                return;

            case 'P':           /* make purchase */
                mvaddstr(15, 0, "What what would you like to buy ? ");
                ch = getanswer(" 1234567", FALSE);
                move(15, 0);
                clrtoeol();

                if (ch - '0' > size)
                    addstr("Sorry, this merchant doesn't have that.");
                else
                    switch (ch)
                        {
                        case '1':
                            printw("Mana is one per %.0f gold piece.  How many do you want (%.0f max) ? ",
                                Menu[0].cost, floor(Player.p_gold / Menu[0].cost));
                            cost = (numitems = floor(infloat())) * Menu[0].cost;

                            if (cost > Player.p_gold || numitems < 0)
                                ++cheat;
                            else
                                {
                                cheat = 0;
                                Player.p_gold -= cost;
                                if (drandom() < 0.02)
                                    dishonest = TRUE;
                                else
                                    Player.p_mana += numitems;
                                }
                            break;

                        case '2':
                            printw("Shields are %.0f per +1.  How many do you want (%.0f max) ? ",
                                Menu[1].cost, floor(Player.p_gold / Menu[1].cost));
                            cost = (numitems = floor(infloat())) * Menu[1].cost;

                            if (numitems == 0.0)
                                break;
                            else if (cost > Player.p_gold || numitems < 0)
                                ++cheat;
                            else if (numitems < Player.p_shield)
                                NOBETTER();
                            else
                                {
                                cheat = 0;
                                Player.p_gold -= cost;
                                if (drandom() < 0.02)
                                    dishonest = TRUE;
                                else
                                    Player.p_shield = numitems;
                                }
                            break;

                        case '3':
                            printw("A book costs %.0f gp.  How many do you want (%.0f max) ? ",
                                Menu[2].cost, floor(Player.p_gold / Menu[2].cost));
                            cost = (numitems = floor(infloat())) * Menu[2].cost;

                            if (cost > Player.p_gold || numitems < 0)
                                ++cheat;
                            else
                                {
                                cheat = 0;
                                Player.p_gold -= cost;
                                if (drandom() < 0.02)
                                    dishonest = TRUE;
                                else if (drandom() * numitems > Player.p_level / 10.0
                                    && numitems != 1)
                                    {
                                    printw("\nYou blew your mind!\n");
                                    Player.p_brains /= 5;
                                    }
                                else
                                    {
                                    Player.p_brains += floor(numitems) * ROLL(20, 8);
                                    }
                                }
                            break;

                        case '4':
                            printw("Swords are %.0f gp per +1.  How many + do you want (%.0f max) ? ",
                                Menu[3].cost, floor(Player.p_gold / Menu[3].cost));
                            cost = (numitems = floor(infloat())) * Menu[3].cost;

                            if (numitems == 0.0)
                                break;
                            else if (cost > Player.p_gold || numitems < 0)
                                ++cheat;
                            else if (numitems < Player.p_sword)
                                NOBETTER();
                            else
                                {
                                cheat = 0;
                                Player.p_gold -= cost;
                                if (drandom() < 0.02)
                                    dishonest = TRUE;
                                else
                                    Player.p_sword = numitems;
                                }
                            break;

                        case '5':
                            printw("A charm costs %.0f gp.  How many do you want (%.0f max) ? ",
                                Menu[4].cost, floor(Player.p_gold / Menu[4].cost));
                            cost = (numitems = floor(infloat())) * Menu[4].cost;

                            if (cost > Player.p_gold || numitems < 0)
                                ++cheat;
                            else
                                {
                                cheat = 0;
                                Player.p_gold -= cost;
                                if (drandom() < 0.02)
                                    dishonest = TRUE;
                                else
                                    Player.p_charms += numitems;
                                }
                            break;

                        case '6':
                            printw("Quicksilver is %.0f gp per +1.  How many + do you want (%.0f max) ? ",
                                Menu[5].cost, floor(Player.p_gold / Menu[5].cost));
                            cost = (numitems = floor(infloat())) * Menu[5].cost;

                            if (numitems == 0.0)
                                break;
                            else if (cost > Player.p_gold || numitems < 0)
                                ++cheat;
                            else if (numitems < Player.p_quksilver)
                                NOBETTER();
                            else
                                {
                                cheat = 0;
                                Player.p_gold -= cost;
                                if (drandom() < 0.02)
                                    dishonest = TRUE;
                                else
                                    Player.p_quksilver = numitems;
                                }
                            break;

                        case '7':
                            if (Player.p_blessing)
                                {
                                addstr("You already have a blessing.");
                                break;
                                }

                            printw("A blessing requires a %.0f gp donation.  Still want one ? ", blessingcost);
                            ch = getanswer("NY", FALSE);

                            if (ch == 'Y')
                                {
                                if (Player.p_gold < blessingcost)
                                    ++cheat;
                                else
                                    {
                                    cheat = 0;
                                    Player.p_gold -= blessingcost;
                                    if (drandom() < 0.02)
                                        dishonest = TRUE;
                                    else
                                        Player.p_blessing = TRUE;
                                    }
                                }
                            break;
                        }
            break;

            case 'S':           /* sell gems */
                mvprintw(15, 0, "A gem is worth %.0f gp.  How many do you want to sell (%.0f max) ? ",
                    (double) N_GEMVALUE, Player.p_gems);
                numitems = floor(infloat());

                if (numitems > Player.p_gems || numitems < 0)
                    ++cheat;
                else
                    {
                    cheat = 0;
                    Player.p_gems -= numitems;
                    Player.p_gold += numitems * N_GEMVALUE;
                    }
            }

        if (cheat == 1)
            mvaddstr(17, 0, "Come on, merchants aren't stupid.  Stop cheating.\n");
        else if (cheat == 2)
            {
            mvaddstr(17, 0, "You had your chance.  This merchant happens to be\n");
            printw("a %.0f level magic user, and you made %s mad!\n",
                ROLL(Circle * 20.0, 40.0), (drandom() < 0.5) ? "him" : "her");
            altercoordinates(0.0, 0.0, A_FAR);
            Player.p_energy /= 2.0;
            ++Player.p_sin;
            more(23);
            return;
            }
        else if (dishonest)
            {
            mvaddstr(17, 0, "The merchant stole your money!");
            refresh();
            altercoordinates(Player.p_x - Player.p_x / 10.0,
                Player.p_y - Player.p_y / 10.0, A_SPECIFIC);
            sleep(2);
            return;
            }
        }
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: displaystats()
/
/ FUNCTION: print out important player statistics
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS: none
/
/ RETURN VALUE: none
/
/ MODULES CALLED: descrstatus(), descrlocation(), mvprintw()
/
/ GLOBAL INPUTS: Users, Player
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       Important player statistics are printed on the screen.
/
*************************************************************************/

void
displaystats(void)
{
    mvprintw(0, 0, "%s%s\n", Player.p_name, descrlocation(&Player, FALSE));
    mvprintw(1, 0, "Level :%7.0f   Energy  :%9.0f(%9.0f)  Mana :%9.0f  Users:%3d\n",
        Player.p_level, Player.p_energy, Player.p_maxenergy + Player.p_shield,
        Player.p_mana, Users);
    mvprintw(2, 0, "Quick :%3.0f(%3.0f)  Strength:%9.0f(%9.0f)  Gold :%9.0f  %s\n",
        Player.p_speed, Player.p_quickness + Player.p_quksilver, Player.p_might,
        Player.p_strength + Player.p_sword, Player.p_gold, descrstatus(&Player));
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: allstatslist()
/
/ FUNCTION: show player items
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS: none
/
/ RETURN VALUE: none
/
/ MODULES CALLED: mvprintw(), descrtype()
/
/ GLOBAL INPUTS: Player
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       Print out some player statistics of lesser importance.
/
*************************************************************************/

void
allstatslist(void)
{
static  const char      *flags[] =      /* to print value of some bools */
            {
            "False",
            " True"
            };

    mvprintw( 8,  0, "Type: %s\n",  descrtype(&Player,  FALSE));

    mvprintw(10,  0, "Experience: %9.0f", Player.p_experience);
    mvprintw(11,  0, "Brains    : %9.0f", Player.p_brains);
    mvprintw(12,  0, "Magic Lvl : %9.0f", Player.p_magiclvl);
    mvprintw(13,  0, "Sin       : %9.5f", Player.p_sin);
    mvprintw(14,  0, "Poison    : %9.5f", Player.p_poison);
    mvprintw(15,  0, "Gems      : %9.0f", Player.p_gems);
    mvprintw(16,  0, "Age       : %9d", Player.p_age);
    mvprintw(10, 40, "Holy Water: %9d", Player.p_holywater);
    mvprintw(11, 40, "Amulets   : %9d", Player.p_amulets);
    mvprintw(12, 40, "Charms    : %9d", Player.p_charms);
    mvprintw(13, 40, "Crowns    : %9d", Player.p_crowns);
    mvprintw(14, 40, "Shield    : %9.0f", Player.p_shield);
    mvprintw(15, 40, "Sword     : %9.0f", Player.p_sword);
    mvprintw(16, 40, "Quickslver: %9.0f", Player.p_quksilver);

    mvprintw(18,  0, "Blessing: %s   Ring: %s   Virgin: %s   Palantir: %s",
        flags[Player.p_blessing], flags[Player.p_ring.ring_type != R_NONE],
        flags[Player.p_virgin], flags[Player.p_palantir]);
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: descrtype()
/
/ FUNCTION: return a string specifying player type
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS:
/       struct player playerp - pointer to structure for player
/       bool shortflag - set if short form is desired
/
/ RETURN VALUE: pointer to string describing player type
/
/ MODULES CALLED: strcpy()
/
/ GLOBAL INPUTS: Databuf[]
/
/ GLOBAL OUTPUTS: Databuf[]
/
/ DESCRIPTION:
/       Return a string describing the player type.
/       King, council, valar, supercedes other types.
/       The first character of the string is '*' if the player
/       has a crown.
/       If 'shortflag' is TRUE, return a 3 character string.
/
*************************************************************************/

const char *
descrtype(struct player *playerp, bool shortflag)
{
int type;       /* for caluculating result subscript */
static const char       *results[] =    /* description table */
                        {
                        " Magic User", " MU",
                        " Fighter", " F ",
                        " Elf", " E ",
                        " Dwarf", " D ",
                        " Halfling", " H ",
                        " Experimento", " EX",
                        " Super", " S ",
                        " King", " K ",
                        " Council of Wise", " CW",
                        " Ex-Valar", " EV",
                        " Valar", " V ",
                        " ? ", " ? "
                        };

    type = playerp->p_type;

    switch (playerp->p_specialtype)
        {
        case SC_NONE:
            type = playerp->p_type;
            break;

        case SC_KING:
            type = 7;
            break;

        case SC_COUNCIL:
            type = 8;
            break;

        case SC_EXVALAR:
            type = 9;
            break;

        case SC_VALAR:
            type = 10;
            break;
        }

    type *= 2;          /* calculate offset */

    if (type > 20)
        /* error */
        type = 22;

    if (shortflag)
        /* use short descriptions */
        ++type;

    if (playerp->p_crowns > 0)
        {
        strcpy(Databuf, results[type]);
        Databuf[0] = '*';
        return(Databuf);
        }
    else
        return(results[type]);
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: findname()
/
/ FUNCTION: find location in player file of given name
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS:
/       char *name - name of character to look for
/       struct player *playerp - pointer of structure to fill
/
/ RETURN VALUE: location of player if found, -1 otherwise
/
/ MODULES CALLED: fread(), fseek(), strcmp()
/
/ GLOBAL INPUTS: Wizard, *Playersfp
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       Search the player file for the player of the given name.
/       If player is found, fill structure with player data.
/
*************************************************************************/

long
findname(char *name, struct player *playerp)
{
long    loc = 0;                        /* location in the file */

    fseek(Playersfp, 0L, 0);
    while (fread((char *) playerp, SZ_PLAYERSTRUCT, 1, Playersfp) == 1)
        {
        if (strcmp(playerp->p_name, name) == 0)
            {
            if (playerp->p_status != S_NOTUSED || Wizard)
                /* found it */
                return(loc);
            }
        loc += SZ_PLAYERSTRUCT;
        }

    return(-1);
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: allocrecord()
/
/ FUNCTION: find space in the player file for a new character
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS: none
/
/ RETURN VALUE: location of free space in file
/
/ MODULES CALLED: initplayer(), writerecord(), fread(), fseek()
/
/ GLOBAL INPUTS: Other, *Playersfp
/
/ GLOBAL OUTPUTS: Player
/
/ DESCRIPTION:
/       Search the player file for an unused entry.  If none are found,
/       make one at the end of the file.
/
*************************************************************************/

long
allocrecord(void)
{
long    loc = 0L;               /* location in file */

    fseek(Playersfp, 0L, 0);
    while (fread((char *) &Other, SZ_PLAYERSTRUCT, 1, Playersfp) == 1)
        {
        if (Other.p_status == S_NOTUSED)
            /* found an empty record */
            return(loc);
        else
            loc += SZ_PLAYERSTRUCT;
        }

    /* make a new record */
    initplayer(&Other);
    Player.p_status = S_OFF;
    writerecord(&Other, loc);

    return(loc);
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: freerecord()
/
/ FUNCTION: free up a record on the player file
/
/ AUTHOR: E. A. Estes, 2/7/86
/
/ ARGUMENTS:
/       struct player playerp - pointer to structure to free
/       long loc - location in file to free
/
/ RETURN VALUE: none
/
/ MODULES CALLED: writerecord()
/
/ GLOBAL INPUTS: none
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       Mark structure as not used, and update player file.
/
*************************************************************************/

void
freerecord(struct player *playerp, long loc)
{
    playerp->p_name[0] = CH_MARKDELETE;
    playerp->p_status = S_NOTUSED;
    writerecord(playerp, loc);
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: leavegame()
/
/ FUNCTION: leave game
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS: none
/
/ RETURN VALUE: none
/
/ MODULES CALLED: freerecord(), writerecord(), cleanup()
/
/ GLOBAL INPUTS: Player, Fileloc
/
/ GLOBAL OUTPUTS: Player
/
/ DESCRIPTION:
/       Mark player as inactive, and cleanup.
/       Do not save players below level 1.
/
*************************************************************************/

void
leavegame(void)
{

    if (Player.p_level < 1.0)
        /* delete character */
        freerecord(&Player, Fileloc);
    else
        {
        Player.p_status = S_OFF;
        writerecord(&Player, Fileloc);
        }

    cleanup(TRUE);
    /*NOTREACHED*/
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: death()
/
/ FUNCTION: death routine
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS:
/       char *how - pointer to string describing cause of death
/
/ RETURN VALUE: none
/
/ MODULES CALLED: freerecord(), enterscore(), more(), exit(), fread(),
/       fseek(), execl(), fopen(), floor(), wmove(), drandom(), wclear(), strcmp(),
/       fwrite(), fflush(), printw(), strcpy(), fclose(), waddstr(), cleanup(),
/       fprintf(), wrefresh(), getanswer(), descrtype()
/
/ GLOBAL INPUTS: Curmonster, Wizard, Player, *stdscr, Fileloc, *Monstfp
/
/ GLOBAL OUTPUTS: Player
/
/ DESCRIPTION:
/       Kill off current player.
/       Handle rings, and multiple lives.
/       Print an appropriate message.
/       Update scoreboard, lastdead, and let other players know about
/       the demise of their comrade.
/
*************************************************************************/

void
death(const char *how)
{
FILE    *fp;            /* for updating various files */
int     ch;             /* input */
static  const char      *deathmesg[] =
        /* add more messages here, if desired */
        {
        "You have been wounded beyond repair.  ",
        "You have been disemboweled.  ",
        "You've been mashed, mauled, and spit upon.  (You're dead.)\n",
        "You died!  ",
        "You're a complete failure -- you've died!!\n",
        "You have been dealt a fatal blow!  "
        };

    clear();

    if (strcmp(how, "Stupidity") != 0)
        {
        if (Player.p_level > 9999.0)
            /* old age */
            addstr("Characters must be retired upon reaching level 10000.  Sorry.");
        else if (Player.p_lives > 0)
            /* extra lives */
            {
            addstr("You should be more cautious.  You've been killed.\n");
            printw("You only have %d more chance(s).\n", --Player.p_lives);
            more(3);
            Player.p_energy = Player.p_maxenergy;
            return;
            }
        else if (Player.p_specialtype == SC_VALAR)
            {
            addstr("You had your chances, but Valar aren't totally\n");
            addstr("immortal.  You are now left to wither and die . . .\n");
            more(3);
            Player.p_brains = Player.p_level / 25.0;
            Player.p_energy = Player.p_maxenergy /= 5.0;
            Player.p_quksilver = Player.p_sword = 0.0;
            Player.p_specialtype = SC_COUNCIL;
            return;
            }
        else if (Player.p_ring.ring_inuse &&
            (Player.p_ring.ring_type == R_DLREG || Player.p_ring.ring_type == R_NAZREG))
            /* good ring in use - saved from death */
            {
            mvaddstr(4, 0, "Your ring saved you from death!\n");
            refresh();
            Player.p_ring.ring_type = R_NONE;
            Player.p_energy = Player.p_maxenergy / 12.0 + 1.0;
            if (Player.p_crowns > 0)
                --Player.p_crowns;
            return;
            }
        else if (Player.p_ring.ring_type == R_BAD
            || Player.p_ring.ring_type == R_SPOILED)
            /* bad ring in possession; name idiot after player */
            {
            mvaddstr(4, 0,
                "Your ring has taken control of you and turned you into a monster!\n");
            fseek(Monstfp, 13L * SZ_MONSTERSTRUCT, 0);
            fread((char *) &Curmonster, SZ_MONSTERSTRUCT, 1, Monstfp);
            strcpy(Curmonster.m_name, Player.p_name);
            fseek(Monstfp, 13L * SZ_MONSTERSTRUCT, 0);
            fwrite((char *) &Curmonster, SZ_MONSTERSTRUCT, 1, Monstfp);
            fflush(Monstfp);
            }
        }

    enterscore();               /* update score board */

    /* put info in last dead file */
    fp = fopen(_PATH_LASTDEAD, "w");
    fprintf(fp,"%s (%s, run by %s, level %.0f, killed by %s)",
        Player.p_name, descrtype(&Player, TRUE),
        Player.p_login, Player.p_level, how);
    fclose(fp);

    /* let other players know */
    fp = fopen(_PATH_MESS, "w");
    fprintf(fp, "%s was killed by %s.", Player.p_name, how);
    fclose(fp);

    freerecord(&Player, Fileloc);

    clear();
    move(10, 0);
    addstr(deathmesg[(int) ROLL(0.0, (double) sizeof(deathmesg) / sizeof(char *))]);
    addstr("Care to give it another try ? ");
    ch = getanswer("NY", FALSE);

    if (ch == 'Y')
        {
        cleanup(FALSE);
        execl(_PATH_GAMEPROG, "phantasia", "-s",
            (Wizard ? "-S": (char *) NULL), (char *) NULL);
        exit(0);
        /*NOTREACHED*/
        }

    cleanup(TRUE);
    /*NOTREACHED*/
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: writerecord()
/
/ FUNCTION: update structure in player file
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS:
/       struct player *playerp - pointer to structure to write out
/       long place - location in file to updata
/
/ RETURN VALUE: none
/
/ MODULES CALLED: fseek(), fwrite(), fflush()
/
/ GLOBAL INPUTS: *Playersfp
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       Update location in player file with given structure.
/
*************************************************************************/

void
writerecord(struct player *playerp, long place)
{
    fseek(Playersfp, place, 0);
    fwrite((char *) playerp, SZ_PLAYERSTRUCT, 1, Playersfp);
    fflush(Playersfp);
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: explevel()
/
/ FUNCTION: calculate level based upon experience
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS:
/       double experience - experience to calculate experience level from
/
/ RETURN VALUE: experience level
/
/ MODULES CALLED: pow(), floor()
/
/ GLOBAL INPUTS: none
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       Experience level is a geometric progression.  This has been finely
/       tuned over the years, and probably should not be changed.
/
*************************************************************************/

double
explevel(double experience)
{
    if (experience < 1.1e7)
        return(floor(pow((experience / 1000.0), 0.4875)));
    else
        return(floor(pow((experience / 1250.0), 0.4865)));
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: truncstring()
/
/ FUNCTION: truncate trailing blanks off a string
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS:
/       char *string - pointer to null terminated string
/
/ RETURN VALUE: none
/
/ MODULES CALLED: strlen()
/
/ GLOBAL INPUTS: none
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       Put nul characters in place of spaces at the end of the string.
/
*************************************************************************/

void
truncstring(char *string)
{
size_t  length;         /* length of string */

    length = strlen(string);
    while (string[--length] == ' ')
        string[length] = '\0';
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: altercoordinates()
/
/ FUNCTION: Alter x, y coordinates and set/check location flags
/
/ AUTHOR: E. A. Estes, 12/16/85
/
/ ARGUMENTS:
/       double xnew, ynew - new x, y coordinates
/       int operation - operation to perform with coordinates
/
/ RETURN VALUE: none
/
/ MODULES CALLED: fabs(), floor(), drandom(), distance()
/
/ GLOBAL INPUTS: Circle, Beyond, Player
/
/ GLOBAL OUTPUTS: Marsh, Circle, Beyond, Throne, Player, Changed
/
/ DESCRIPTION:
/       This module is called whenever the player's coordinates are altered.
/       If the player is beyond the point of no return, he/she is forced
/       to stay there.
/
*************************************************************************/

void
altercoordinates(double xnew, double ynew, int operation)
{
    switch (operation)
        {
        case A_FORCED:  /* move with no checks */
            break;

        case A_NEAR:    /* pick random coordinates near */
            xnew = Player.p_x + ROLL(1.0, 5.0);
            ynew = Player.p_y - ROLL(1.0, 5.0);
            /* fall through for check */

        case A_SPECIFIC:        /* just move player */
            if (Beyond && fabs(xnew) < D_BEYOND && fabs(ynew) < D_BEYOND)
                /*
                 * cannot move back from point of no return
                 * pick the largest coordinate to remain unchanged
                 */
                {
                if (fabs(xnew) > fabs(ynew))
                    xnew = SGN(Player.p_x) * MAX(fabs(Player.p_x), D_BEYOND);
                else
                    ynew = SGN(Player.p_y) * MAX(fabs(Player.p_y), D_BEYOND);
                }
            break;

        case A_FAR:     /* pick random coordinates far */
            xnew = Player.p_x + SGN(Player.p_x) * ROLL(50 * Circle, 250 * Circle);
            ynew = Player.p_y + SGN(Player.p_y) * ROLL(50 * Circle, 250 * Circle);
            break;
        }

    /* now set location flags and adjust coordinates */
    Circle = CIRCLE(Player.p_x = floor(xnew), Player.p_y = floor(ynew));

    /* set up flags based upon location */
    Throne = Marsh = Beyond = FALSE;

    if (Player.p_x == 0.0 && Player.p_y == 0.0)
        Throne = TRUE;
    else if (Circle < 35 && Circle >= 20)
        Marsh = TRUE;
    else if (MAX(fabs(Player.p_x), fabs(Player.p_y)) >= D_BEYOND)
        Beyond = TRUE;

    Changed = TRUE;
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: readrecord()
/
/ FUNCTION: read a player structure from file
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS:
/       struct player *playerp - pointer to structure to fill
/       int loc - location of record to read
/
/ RETURN VALUE: none
/
/ MODULES CALLED: fread(), fseek()
/
/ GLOBAL INPUTS: *Playersfp
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       Read structure information from player file.
/
*************************************************************************/

void
readrecord(struct player *playerp, long loc)
{
    fseek(Playersfp, loc, 0);
    fread((char *) playerp, SZ_PLAYERSTRUCT, 1, Playersfp);
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: adjuststats()
/
/ FUNCTION: adjust player statistics
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS: none
/
/ RETURN VALUE: none
/
/ MODULES CALLED: death(), floor(), drandom(), explevel(), movelevel()
/
/ GLOBAL INPUTS: Player, *Statptr
/
/ GLOBAL OUTPUTS: Circle, Player, Timeout
/
/ DESCRIPTION:
/       Handle adjustment and maximums on various player characteristics.
/
*************************************************************************/

void
adjuststats(void)
{
double  dtemp;                          /* for temporary calculations */

    if (explevel(Player.p_experience) > Player.p_level)
        /* move one or more levels */
        {
        movelevel();
        if (Player.p_level > 5.0)
            Timeout = TRUE;
        }

    if (Player.p_specialtype == SC_VALAR)
        /* valar */
        Circle = Player.p_level / 5.0;

    /* calculate effective quickness */
    dtemp = ((Player.p_gold + Player.p_gems / 2.0) - 1000.0) / Statptr->c_goldtote
        - Player.p_level;
    dtemp = MAX(0.0, dtemp);            /* gold slows player down */
    Player.p_speed = Player.p_quickness + Player.p_quksilver - dtemp;

    /* calculate effective strength */
    if (Player.p_poison > 0.0)
        /* poison makes player weaker */
        {
        dtemp = 1.0 - Player.p_poison * Statptr->c_weakness / 800.0;
        dtemp = MAX(0.1, dtemp);
        }
    else
        dtemp = 1.0;
    Player.p_might = dtemp *  Player.p_strength + Player.p_sword;

    /* insure that important things are within limits */
    Player.p_quksilver = MIN(99.0, Player.p_quksilver);
    Player.p_mana = MIN(Player.p_mana,
        Player.p_level * Statptr->c_maxmana + 1000.0);
    Player.p_brains = MIN(Player.p_brains,
        Player.p_level * Statptr->c_maxbrains + 200.0);
    Player.p_charms = MIN(Player.p_charms, Player.p_level + 10.0);

    /*
     * some implementations have problems with floating point compare
     * we work around it with this stuff
     */
    Player.p_gold = floor(Player.p_gold) + 0.1;
    Player.p_gems = floor(Player.p_gems) + 0.1;
    Player.p_mana = floor(Player.p_mana) + 0.1;

    if (Player.p_ring.ring_type != R_NONE)
        /* do ring things */
        {
        /* rest to max */
        Player.p_energy = Player.p_maxenergy + Player.p_shield;

        if (Player.p_ring.ring_duration <= 0)
            /* clean up expired rings */
            switch (Player.p_ring.ring_type)
                {
                case R_BAD:     /* ring drives player crazy */
                    Player.p_ring.ring_type = R_SPOILED;
                    Player.p_ring.ring_duration = (short) ROLL(10.0, 25.0);
                    break;

                case R_NAZREG:  /* ring disappears */
                    Player.p_ring.ring_type = R_NONE;
                    break;

                case R_SPOILED: /* ring kills player */
                    death("A cursed ring");
                    break;

                case R_DLREG:   /* this ring doesn't expire */
                    Player.p_ring.ring_duration = 0;
                    break;
                }
        }

    if (Player.p_age / N_AGE > Player.p_degenerated)
        /* age player slightly */
        {
        ++Player.p_degenerated;
        if (Player.p_quickness > 23.0)
            Player.p_quickness *= 0.99;
        Player.p_strength *= 0.97;
        Player.p_brains *= 0.95;
        Player.p_magiclvl *= 0.97;
        Player.p_maxenergy *= 0.95;
        Player.p_quksilver *= 0.95;
        Player.p_sword *= 0.93;
        Player.p_shield *= 0.93;
        }
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: initplayer()
/
/ FUNCTION: initialize a character
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS:
/       struct player *playerp - pointer to structure to init
/
/ RETURN VALUE: none
/
/ MODULES CALLED: floor(), drandom()
/
/ GLOBAL INPUTS: none
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       Put a bunch of default values in the given structure.
/
*************************************************************************/

void
initplayer(struct player *playerp)
{
    playerp->p_experience =
    playerp->p_level =
    playerp->p_strength =
    playerp->p_sword =
    playerp->p_might =
    playerp->p_energy =
    playerp->p_maxenergy =
    playerp->p_shield =
    playerp->p_quickness =
    playerp->p_quksilver =
    playerp->p_speed =
    playerp->p_magiclvl =
    playerp->p_mana =
    playerp->p_brains =
    playerp->p_poison =
    playerp->p_gems =
    playerp->p_sin =
    playerp->p_1scratch =
    playerp->p_2scratch = 0.0;

    playerp->p_gold = ROLL(50.0, 75.0) + 0.1;   /* give some gold */

    playerp->p_x = ROLL(-125.0, 251.0);
    playerp->p_y = ROLL(-125.0, 251.0);         /* give random x, y */

    /* clear ring */
    playerp->p_ring.ring_type = R_NONE;
    playerp->p_ring.ring_duration = 0;
    playerp->p_ring.ring_inuse = FALSE;

    playerp->p_age = 0L;

    playerp->p_degenerated = 1;                 /* don't degenerate initially */

    playerp->p_type = C_FIGHTER;                /* default */
    playerp->p_specialtype = SC_NONE;
    playerp->p_lives =
    playerp->p_crowns =
    playerp->p_charms =
    playerp->p_amulets =
    playerp->p_holywater =
    playerp->p_lastused = 0;
    playerp->p_status = S_NOTUSED;
    playerp->p_tampered = T_OFF;
    playerp->p_istat = I_OFF;

    playerp->p_palantir =
    playerp->p_blessing =
    playerp->p_virgin =
    playerp->p_blindness = FALSE;

    playerp->p_name[0] =
    playerp->p_password[0] =
    playerp->p_login[0] = '\0';
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: readmessage()
/
/ FUNCTION: read message from other players
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS: none
/
/ RETURN VALUE: none
/
/ MODULES CALLED: fseek(), fgets(), wmove(), waddstr(), wclrtoeol()
/
/ GLOBAL INPUTS: *stdscr, Databuf[], *Messagefp
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       If there is a message from other players, print it.
/
*************************************************************************/

void
readmessage(void)
{
    move(3, 0);
    clrtoeol();
    fseek(Messagefp, 0L, 0);
    if (fgets(Databuf, SZ_DATABUF, Messagefp) != NULL)
        addstr(Databuf);
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: error()
/
/ FUNCTION: process evironment error
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS:
/       char *whichfile - pointer to name of file which caused error
/
/ RETURN VALUE: none
/
/ MODULES CALLED: wclear(), cleanup()
/
/ GLOBAL INPUTS: errno, *stdscr, printw(), printf(), Windows
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       Print message about offending file, and exit.
/
*************************************************************************/

void
error(const char *whichfile)
{
        int     (*funcp) (const char *, ...);

    if (Windows)
        {
        funcp = (void *)printw;
        clear();
        }
    else
        funcp = printf;

    (*funcp)("An unrecoverable error has occurred reading %s.  (errno = %d)\n", whichfile, errno);
    (*funcp)("Please run 'setup' to determine the problem.\n");
    cleanup(TRUE);
    /*NOTREACHED*/
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: distance()
/
/ FUNCTION: calculate distance between two points
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS:
/       double x1, y1 - x, y coordinates of first point
/       double x2, y2 - x, y coordinates of second point
/
/ RETURN VALUE: distance between the two points
/
/ MODULES CALLED: sqrt()
/
/ GLOBAL INPUTS: none
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       This function is provided because someone's hypot() library function
/       fails if x1 == x2 && y1 == y2.
/
*************************************************************************/

double
distance(double x_1, double x_2, double y_1, double y_2)
{
double  deltax, deltay;

    deltax = x_1 - x_2;
    deltay = y_1 - y_2;
    return(sqrt(deltax * deltax + deltay * deltay));
}

/*\f*/
/************************************************************************
/
/ FUNCTION NAME: ill_sig()
/
/ FUNCTION: exit upon trapping an illegal signal
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS:
/       int whichsig - signal which occured to cause jump to here
/
/ RETURN VALUE: none
/
/ MODULES CALLED: wclear(), printw(), cleanup()
/
/ GLOBAL INPUTS: *stdscr
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       When an illegal signal is caught, print a message, and cleanup.
/
*************************************************************************/

void
ill_sig(int whichsig)
{
    clear();
    if (!(whichsig == SIGINT || whichsig == SIGQUIT))
        printw("Error: caught signal # %d.\n", whichsig);
    cleanup(TRUE);
    /*NOTREACHED*/
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: descrstatus()
/
/ FUNCTION: return a string describing the player status
/
/ AUTHOR: E. A. Estes, 3/3/86
/
/ ARGUMENTS:
/       struct player playerp - pointer to player structure to describe
/
/ RETURN VALUE: string describing player's status
/
/ MODULES CALLED: none
/
/ GLOBAL INPUTS: none
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/       Return verbal description of player status.
/       If player status is S_PLAYING, check for low energy and blindness.
/
*************************************************************************/

const char *
descrstatus(struct player *playerp)
{
    switch (playerp->p_status)
        {
        case S_PLAYING:
            if (playerp->p_energy < 0.2 * (playerp->p_maxenergy + playerp->p_shield))
                return("Low Energy");
            else if (playerp->p_blindness)
                return("Blind");
            else
                return("In game");

        case S_CLOAKED:
            return("Cloaked");

        case S_INBATTLE:
            return("In Battle");

        case S_MONSTER:
            return("Encounter");

        case S_TRADING:
            return("Trading");

        case S_OFF:
            return("Off");

        case S_HUNGUP:
            return("Hung up");

        default:
            return("");
        }
}
/*\f*/
/************************************************************************
/
/ FUNCTION NAME: collecttaxes()
/
/ FUNCTION: collect taxes from current player
/
/ AUTHOR: E. A. Estes, 2/7/86
/
/ ARGUMENTS:
/       double gold - amount of gold to tax
/       double gems - amount of gems to tax
/
/ RETURN VALUE: none
/
/ MODULES CALLED: fread(), fseek(), fopen(), floor(), fwrite(), fclose()
/
/ GLOBAL INPUTS: Player
/
/ GLOBAL OUTPUTS: Player
/
/ DESCRIPTION:
/       Pay taxes on gold and gems.  If the player does not have enough
/       gold to pay taxes on the added gems, convert some gems to gold.
/       Add taxes to tax data base; add remaining gold and gems to
/       player's cache.
/
*************************************************************************/

void
collecttaxes(double gold, double gems)
{
FILE    *fp;            /* to update Goldfile */
double  dtemp;          /* for temporary calculations */
double  taxes;          /* tax liability */

    /* add to cache */
    Player.p_gold += gold;
    Player.p_gems += gems;

    /* calculate tax liability */
    taxes = N_TAXAMOUNT / 100.0 * (N_GEMVALUE * gems + gold);

    if (Player.p_gold < taxes)
        /* not enough gold to pay taxes, must convert some gems to gold */
        {
        dtemp = floor(taxes / N_GEMVALUE + 1.0); /* number of gems to convert */

        if (Player.p_gems >= dtemp)
            /* player has enough to convert */
            {
            Player.p_gems -= dtemp;
            Player.p_gold += dtemp * N_GEMVALUE;
            }
        else
            /* take everything; this should never happen */
            {
            Player.p_gold += Player.p_gems * N_GEMVALUE;
            Player.p_gems = 0.0;
            taxes = Player.p_gold;
            }
        }

    Player.p_gold -= taxes;

    if ((fp = fopen(_PATH_GOLD, "r+")) != NULL)
        /* update taxes */
        {
        dtemp = 0.0;
        fread((char *) &dtemp, sizeof(double), 1, fp);
        dtemp += floor(taxes);
        fseek(fp, 0L, 0);
        fwrite((char *) &dtemp, sizeof(double), 1, fp);
        fclose(fp);
        }
}