display.c

#include <curses.h>
#include <stdlib.h>
#include <string.h>
#include "includes/action.h"
#include "includes/larncons.h"
#include "includes/larndata.h"
#include "includes/larnfunc.h"
#include "includes/ansiterm.h"
#include "includes/create.h"
#include "includes/display.h"
#include "includes/global.h"
#include "includes/io.h"
#include "includes/monster.h"

#define botsub( _idx, _x, _y, _str )        \
	if ( cdesc[(_idx)] != cbak[(_idx)] )        \
	{                                   \
	cbak[(_idx)] = cdesc[(_idx)];           \
	cursor( (_x), (_y) );               \
	lprintf( (_str), (int)cdesc[(_idx)] ); \
	}

#define nlprc(_ch) lprc(_ch)

static void bot_hpx (void);
static void bot_spellx (void);
static void botside (void);
static void seepage (void);
static int minx, maxx, miny, maxy;
static int bot1f = 0, bot2f = 0, bot3f = 0;
static int always = 0;
int regen_bottom = 0;

/*
bottomline()

now for the bottom line of the display
*/
void
bottomline (void)
{

  recalc ();
  bot1f = 1;
}


void
bottomhp (void)
{

  bot2f = 1;
}


void
bottomspell (void)
{

  bot3f = 1;
}

void
bottomdo (void)
{
  if (bot1f)
    {
      bot3f = bot1f = bot2f = 0;
      bot_linex ();
      return;
    }
  if (bot2f)
    {
      bot2f = 0;
      bot_hpx ();
    }
  if (bot3f)
    {
      bot3f = 0;
      bot_spellx ();
    }
}


void
bot_linex (void)
{
  int i;
  /*int debugtmp; */

  if (regen_bottom || (always))
    {
      regen_bottom = FALSE;
      cursor (1, 18);
      if (cdesc[SPELLMAX] > 99) {
	lprintf ("Spells:");
	lprintf("%3d(%3d)", (int) cdesc[SPELLS],
		 (int) cdesc[SPELLMAX]);
      } else {
	lprintf ("Spells:");
	lprintf("%3d(%2d) ", (int) cdesc[SPELLS],
		 (int) cdesc[SPELLMAX]);
	}
      	lprintf(" AC:");
	lprintf(" %-3d ",(int) cdesc[AC]);
	lprintf(" WC:");
	lprintf(" %-3d ",(int) cdesc[WCLASS]);
	lprintf("Level:");
      if (cdesc[LEVEL] > 99) {
	lprintf ("%3d", (int) cdesc[LEVEL]);
      } else {
	lprintf (" %-2d", (int) cdesc[LEVEL]);
	}
      /*debugtmp = cdesc[LEVEL]; */
      lprintf (" Exp:");
	 lprintf(" %-9d %s\n", (int) cdesc[EXPERIENCE],
	       classname[cdesc[LEVEL] - 1]);
	 /*This is sill here to initially show the health stats. ~Gibbon*/
		 lprintf("HP:");
		 lprintf(" %3d(%3d)", (int)cdesc[HP], (int)cdesc[HPMAX]);
	lprintf(" STR:");
	lprintf("%-2d ",(int) (cdesc[STRENGTH] + cdesc[STREXTRA]));
	lprintf("INT:");
	lprintf("%-2d ",(int) cdesc[INTELLIGENCE]);
      	lprintf ("WIS:");
	lprintf("%-2d ",(int) cdesc[WISDOM]);
	lprintf("CON:");
	lprintf("%-2d ",(int) cdesc[CONSTITUTION]);
	lprintf("DEX:");
	lprintf("%-2d ",(int) cdesc[DEXTERITY]);
	lprintf("CHA:");
	lprintf("%-2d ",(int) cdesc[CHARISMA]);
	lprintf("LV:");

      if ((level == 0) || (wizard))
	cdesc[TELEFLAG] = 0;
      if (cdesc[TELEFLAG])
	lprcat (" ?");
      else
	lprcat (levelname[level]);
      lprintf ("  Gold:  ");
	lprintf("%-6d", (int) cdesc[GOLD]);
      always = 1;
      botside ();
      cdesc[TMP] = cdesc[STRENGTH] + cdesc[STREXTRA];
      for (i = 0; i < 100; i++)
	cbak[i] = cdesc[i];
      return;
    }

  botsub (SPELLS, 8, 18, "%3d");
  if (cdesc[SPELLMAX] > 99)
    {
      botsub (SPELLMAX, 12, 18, "%3d)");
    }
  else
  botsub (SPELLMAX, 12, 18, "%2d) ");
  botsub (HP, 5, 19, "%3d");
  botsub (HPMAX, 9, 19, "%3d");
  botsub (AC, 21, 18, "%-3d");
  botsub (WCLASS, 30, 18, "%-3d");
  botsub (EXPERIENCE, 49, 18, "%-9d");
  if (cdesc[LEVEL] != cbak[LEVEL])
    {
      cursor (59, 18);
      lprcat (classname[cdesc[LEVEL] - 1]);
    }
  if (cdesc[LEVEL] > 99)
    {
      botsub (LEVEL, 40, 18, "%3d");
    }
  else
  botsub (LEVEL, 40, 18, " %-2d");
  cdesc[TMP] = cdesc[STRENGTH] + cdesc[STREXTRA];
  botsub (TMP, 18, 19, "%-2d");
  botsub (INTELLIGENCE, 25, 19, "%-2d");
  botsub (WISDOM, 32, 19, "%-2d");
  botsub (CONSTITUTION, 39, 19, "%-2d");
  botsub (DEXTERITY, 46, 19, "%-2d");
  botsub (CHARISMA, 53, 19, "%-2d");
  if ((level != cbak[CAVELEVEL]) || (cdesc[TELEFLAG] != cbak[TELEFLAG]))
    {
      if ((level == 0) || (wizard))
	cdesc[TELEFLAG] = 0;
      cbak[TELEFLAG] = cdesc[TELEFLAG];
      cbak[CAVELEVEL] = level;
      cursor (59, 19);
      if (cdesc[TELEFLAG])
	lprcat (" ?");
      else
	lprcat (levelname[level]);
    }
  botsub (GOLD, 69, 19, "%-6d");
  botside ();
}



/*
special subroutine to update only the gold number on the bottomlines
called from ogold()
*/
void
bottomgold (void)
{

  botsub (GOLD, 69, 19, "%-6d");
}



/*
special routine to update hp and level fields on bottom lines
called in monster.c hitplayer() and spattack()
*/
static void
bot_hpx (void)
{		
  if (cdesc[EXPERIENCE] != cbak[EXPERIENCE])
    {
      recalc ();
      bot_linex ();
    }
  else
    botsub (HP, 5, 19, "%3d");
}


/*
special routine to update number of spells called from regen()
*/
static void
bot_spellx (void)
{

  botsub (SPELLS, 9, 18, "%2d");
}



/*
common subroutine for a more economical bottomline()
*/
struct bot_side_def
{

  int typ;
  char *string;

};


static struct bot_side_def bot_data[] = {

  {STEALTH, "stealth"},
  {UNDEADPRO, "undead pro"},
  {SPIRITPRO, "spirit pro"},
  {CHARMCOUNT, "Charm"},
  {TIMESTOP, "Time Stop"},
  {HOLDMONST, "Hold Monst"},
  {GIANTSTR, "Giant Str"},
  {FIRERESISTANCE, "Fire Resit"},
  {DEXCOUNT, "Dexterity"},
  {STRCOUNT, "Strength"},
  {SCAREMONST, "Scare"},
  {HASTESELF, "Haste Self"},
  {CANCELLATION, "Cancel"},
  {INVISIBILITY, "Invisible"},
  {ALTPRO, "Protect 3"},
  {PROTECTIONTIME, "Protect 2"},
  {WTW, "Wall-Walk"}

};


static void
botside (void)
{
	int i, idx;
	for (i = 0; i < 17; i++)
	{
		idx = bot_data[i].typ;
		if ((always) || (cdesc[idx] != cbak[idx]))
		{
			if ((always) || (cbak[idx] == 0))
			{
				if (cdesc[idx])
				{
					cursor (70, i + 1);
					lprcat (bot_data[i].string);

					/*Reset cursor position. ~Gibbon */
					cursors();
				}
			}
			else if (cdesc[idx] == 0)
			{
				cursor (70, i + 1);
				lprcat ("          ");

				/*Reset cursor position. ~Gibbon */
				cursors();
			}
			cbak[idx] = cdesc[idx];
		}
	}
	always = 0;
}

/*
*  subroutine to draw only a section of the screen
*  only the top section of the screen is updated.  If entire lines are being
*  drawn, then they will be cleared first.
*/
static int d_xmin = 0, d_xmax = MAXX, d_ymin = 0, d_ymax = MAXY;	/* for limited screen drawing */

void
draws (int xmin, int xmax, int ymin, int ymax)
{
  int i, idx;

  if (xmin == 0 && xmax == MAXX)	/* clear section of screen as needed */
    {
      if (ymin == 0)
	cl_up (79, ymax);
      else
	for (i = ymin; i < ymin; i++)
	  cl_line (1, i + 1);
      xmin = -1;
    }
  d_xmin = xmin;
  d_xmax = xmax;
  d_ymin = ymin;
  d_ymax = ymax;		/* for limited screen drawing */
  drawscreen ();
  if (xmin <= 0 && xmax == MAXX)	/* draw stuff on right side of screen as needed */
    {
      for (i = ymin; i < ymax; i++)
	{
	  idx = bot_data[i].typ;
	  if (cdesc[idx])
	    {
	      cursor (70, i + 1);
	      lprcat (bot_data[i].string);
	    }
	  cbak[idx] = cdesc[idx];
	}
    }
}



/*
drawscreen()

subroutine to redraw the whole screen as the player knows it
*/
static int d_flag;

void
drawscreen (void)
{
  int i, j, k, ileft, iright;

  if (d_xmin == 0 && d_xmax == MAXX && d_ymin == 0 && d_ymax == MAXY)
    {

      /* clear the screen */
      d_flag = 1;
      screen_clear();

    }
  else
    {

      d_flag = 0;
      cursor (1, 1);
    }

  if (d_xmin < 0)
    {

      /* d_xmin=-1 means display all without bottomline */
      d_xmin = 0;
    }

  /* display lines of the screen */
  for (j = d_ymin; j < d_ymax; j++)
    {

      /* When we show a spot of the dungeon, we have 4 cases:
         squares we know nothing about
         - know == 0
         squares we've been at and still know whats there
         - know == KNOWALL (== KNOWHERE | HAVESEEN)
         squares we've been at, but don't still recall because
         something else happened there.
         - know == HAVESEEN
         squares we recall, but haven't been at (an error condition)
         - know == KNOWHERE

         to minimize printing of spaces, scan from left of line until
         we reach a location that the user knows.
       */

      ileft = d_xmin - 1;

      while (++ileft < d_xmax)
	{

	  if (know[ileft][j])
	    {

	      break;
	    }
	}

      /* if blank line ... */
      if (ileft >= d_xmax)
	{

	  continue;
	}



      /* scan from right of line until we reach a location that the
         user knows.
       */
      iright = d_xmax;

      while (--iright > ileft)
	{

	  if (know[iright][j])
	    {

	      break;
	    }
	}

      /*
       * now print the line, after positioning the cursor.
       * print the line with bold objects in a different
       * loop for effeciency
       */
      cursor (ileft + 1, j + 1);

      for (i = ileft; i <= iright; i++)
	{

	  /* we still need to check for the location being known,
	     for we might have an unknown spot in the middle of
	     an otherwise known line.
	   */
	  if (know[i][j] == 0)
	    {

	      nlprc (' ');

	    }
	  else if (know[i][j] & HAVESEEN)
	    {

	      /*
	       * if monster there and the user still knows the place,
	       * then show the monster.  Otherwise, show what was
	       * there before.
	       */

	      if (i == playerx && j == playery)
		{
		  attron(COLOR_PAIR(1));
		  nlprc ('@');
		  attroff(COLOR_PAIR(1));
		  continue;
		}

	      k = mitem[i][j];

	      if (k && know[i][j] & KNOWHERE)
		{

		  nlprc (monstnamelist[k]);

		}
	      else
		{

		  nlprc (objnamelist[item[i][j]]);
		}

	    }
	  else
	    {

	      /*
	       * error condition.  recover by resetting location
	       * to an 'unknown' state.
	       */

	      nlprc (' ');

	      mitem[i][j] = item[i][j] = 0;
	    }
	}
    }

  resetbold ();

  if (d_flag)
    {

      always = 1;
      botside ();
      always = 1;
      bot_linex ();
    }

  /* oldx=99; */
  /* for limited screen drawing */
  d_xmin = d_ymin = 0;
  d_xmax = MAXX;
  d_ymax = MAXY;
}




/*
showcell(x,y)

subroutine to display a cell location on the screen
*/
void
showcell (int x, int y)
{
  int i, j, k, m;

  if (cdesc[BLINDCOUNT])
    return;			/* see nothing if blind     */
  if (cdesc[AWARENESS])
    {
      minx = x - 3;
      maxx = x + 3;
      miny = y - 3;
      maxy = y + 3;
    }
  else if (iven[cdesc[WIELD]] == OHSWORD
        &&   ivenarg[cdesc[WIELD]] >=0)
    {
      minx = x - 2;
      maxx = x + 2;
      miny = y - 2;
      maxy = y + 2;
    }
  else
    {
      minx = x - 1;
      maxx = x + 1;
      miny = y - 1;
      maxy = y + 1;
    }

  if (minx < 0)
    minx = 0;
  if (maxx > MAXX - 1)
    maxx = MAXX - 1;
  if (miny < 0)
    miny = 0;
  if (maxy > MAXY - 1)
    maxy = MAXY - 1;

  for (j = miny; j <= maxy; j++)
    for (m = minx; m <= maxx; m++)
      if ((know[m][j] & KNOWHERE) == 0)
	{
	  cursor (m + 1, j + 1);
	  x = maxx;
	  while (know[x][j] & KNOWHERE)
	    --x;
	  for (i = m; i <= x; i++)
	    {
	      if ((k = mitem[i][j]) != 0)
		lprc (monstnamelist[k]);
	      else
		switch (k = item[i][j])
		  {
		  case OWALL:
		  case 0:
		  case OIVTELETRAP:
		  case OTRAPARROWIV:
		  case OIVDARTRAP:
		  case OIVTRAPDOOR:
		    lprc (objnamelist[k]);
		    break;
		  default:
		    lprc (objnamelist[k]);
		    break;
		  };
	      know[i][j] = KNOWALL;
	    }
	  m = maxx;

	}
}



/*
this routine shows only the spot that is given it.  the spaces around
these coordinated are not shown
used in godirect() in monster.c for missile weapons display
*/
void
show1cell (int x, int y)
{
  int k;

  cursor (x + 1, y + 1);

  /* see nothing if blind, but clear previous player position */
  if (cdesc[BLINDCOUNT])
    {

      if (x == oldx && y == oldy)
	lprc (' ');

      return;
    }

  k = mitem[x][y];

  if (k)
    {

      lprc (monstnamelist[k]);

    }
  else
    {

      k = item[x][y];

      switch (k)
	{

	case OWALL:
	case 0:
	case OIVTELETRAP:
	case OTRAPARROWIV:
	case OIVDARTRAP:
	case OIVTRAPDOOR:
	  lprc (objnamelist[k]);
	  break;
	default:
	  lprc (objnamelist[k]);
	}
    }


  /* we end up knowing about it */
  know[x][y] = KNOWALL;
}




/*
showplayer()

subroutine to show where the player is on the screen
cursor values start from 1 up
*/
void
showplayer (void)
{
  show1cell (oldx, oldy);
  cursor (playerx + 1, playery + 1);
  attron(COLOR_PAIR(1));
  lprc ('@');
  attroff(COLOR_PAIR(1));
  cursor (playerx + 1, playery + 1);
  oldx = playerx;
  oldy = playery;
  refresh();
}






/*
moveplayer(dir)

subroutine to move the player from one room to another
returns 0 if can't move in that direction or hit a monster or on an object
else returns 1
nomove is set to 1 to stop the next move (inadvertent monsters hitting
players when walking into walls) if player walks off screen or into wall
*/
int diroffx[] = { 0, 0, 1, 0, -1, 1, -1, 1, -1 };
int diroffy[] = { 0, 1, 0, -1, 0, -1, -1, 1, 1 };

int
moveplayer (int dir)
/*  from = present room #  direction = [1-north]
[2-east] [3-south] [4-west] [5-northeast]
[6-northwest] [7-southeast] [8-southwest]
if direction=0, don't move--just show where he is */
{
  int k, m, i, j;

  if (cdesc[CONFUSE])
    if (cdesc[LEVEL] < rnd (30))
      dir = rund (9);		/*if confused any dir */
  k = playerx + diroffx[dir];
  m = playery + diroffy[dir];
  if (k < 0 || k >= MAXX || m < 0 || m >= MAXY)
    {
      nomove = 1;
      return (yrepcount = 0);
    }
  i = item[k][m];
  j = mitem[k][m];

  /* prevent the player from moving onto a wall, or a closed door,
     unless the character has Walk-Through-Walls.
   */
  if ((i == OCLOSEDDOOR || i == OWALL) && cdesc[WTW] == 0)
    {
      nomove = 1;
      return (yrepcount = 0);
    }
  if (k == 33 && m == MAXY - 1 && level == 1)
    {
      newcavelevel (0);
      for (k = 0; k < MAXX; k++)
	for (m = 0; m < MAXY; m++)
	  if (item[k][m] == OENTRANCE)
	    {
	      playerx = k;
	      playery = m;
	      positionplayer ();
	      drawscreen ();
	      return (0);
	    }
    }
  /* hit a monster
   */
  if (j > 0)
    {
      hitmonster (k, m);
      return (yrepcount = 0);
    }

  /* check for the player ignoring an altar
   */
  if (item[playerx][playery] == OALTAR && !prayed)
    {
      cursors ();
      lprcat ("\nYou have ignored the altar!");
      act_ignore_altar ();
    }
  prayed = 0;

  lastpx = playerx;
  lastpy = playery;
  playerx = k;
  playery = m;
  if (i && i != OTRAPARROWIV && i != OIVTELETRAP && i != OIVDARTRAP
      && i != OIVTRAPDOOR)
    return (yrepcount = 0);
  else
    return (1);
}




/*
*  function to show what magic items have been discovered thus far
*  enter with -1 for just spells, anything else will give scrolls & potions
*/
static int lincount, count;

void
seemagic (int arg)
{
  int i, j, k, number;
  int sort[SPNUM + 1];		/* OK as long as SPNUM > MAXSCROLL,MAXPOTION */

  count = lincount = 0;

  /* count and sort the known spell codes
   */
  for (j = 0; j <= SPNUM; j++)
    sort[j] = SPNUM;
  for (number = i = 0; i < SPNUM; i++)
    if (spelknow[i])
      {
	number++;
	j = 0;
	while (strncmp (spelcode[sort[j]], spelcode[i], 3) < 0)
	  j++;
	k = number - 1;
	while (k > j)
	  sort[k] = sort[k - 1], k--;
	sort[j] = i;
      }

  if (arg == -1)		/* if display spells while casting one */
    {
      cl_up (79, ((number + 2) / 3 + 4));	/* lines needed for display */
      cursor (1, 1);
    }
  else
    {
      resetscroll ();
      screen_clear();
    }

  lprcat ("The magic spells you have discovered thus far:\n\n");
  for (i = 0; i < number; i++)
    {
      lprintf ("%s %-20s ", spelcode[sort[i]], spelname[sort[i]]);
      seepage ();
    }

  if (arg == -1)
    {
      seepage ();
      more (FALSE);
      draws (0, MAXX, 0, ((number + 2) / 3 + 4));
      return;
    }

  lincount += 3;
  if (count != 0)
    {
      count = 2;
      seepage ();
    }

  /* count and sort the known scrolls
   */
  for (j = 0; j <= MAXSCROLL; j++)
    sort[j] = MAXSCROLL;
  for (number = i = 0; i < MAXSCROLL; i++)
    if (scrollname[i][0])
      {
	number++;
	j = 0;
	while (strcmp (&scrollname[sort[j]][1], &scrollname[i][1]) < 0)
	  j++;
	k = number - 1;
	while (k > j)
	  sort[k] = sort[k - 1], k--;
	sort[j] = i;
      }

  lprcat ("\nThe magic scrolls you have found to date are:\n\n");
  count = 0;
  for (i = 0; i < number; i++)
    {
      lprintf ("%-26s", &scrollname[sort[i]][1]);
      seepage ();
    }

  lincount += 3;
  if (count != 0)
    {
      count = 2;
      seepage ();
    }

  /* count and sort the known potions
   */
  for (j = 0; j <= MAXPOTION; j++)
    sort[j] = MAXPOTION;
  for (number = i = 0; i < MAXPOTION; i++)
    if (potionname[i][0])
      {
	number++;
	j = 0;
	while (strcmp (&potionname[sort[j]][1], &potionname[i][1]) < 0)
	  j++;
	k = number - 1;
	while (k > j)
	  sort[k] = sort[k - 1], k--;
	sort[j] = i;
      }

  lprcat ("\nThe magic potions you have found to date are:\n\n");
  count = 0;
  for (i = 0; i < number; i++)
    {
      lprintf ("%-26s", &potionname[sort[i]][1]);
      seepage ();
    }

  if (lincount != 0)
    more (FALSE);
  setscroll ();
  drawscreen ();
}



/*
*  subroutine to paginate the seemagic function
*/
static void
seepage (void)
{
  if (++count == 3)
    {
      lincount++;
      count = 0;
      lprc ('\n');
      if (lincount > 17)
	{
	  lincount = 0;
	  more (FALSE);
	  screen_clear();
	}
    }
}