#include <stdlib.h>
#include "includes/larncons.h"
#include "includes/larndata.h"
#include "includes/larnfunc.h"
#include "includes/display.h"
#include "includes/global.h"
#include "includes/inventory.h"
#include "includes/io.h"
#include "includes/regen.h"

/*
* regen()
*
* subroutine to regenerate player hp and spells
*/
void
regen (void)
{
  int i, flag;
  long *d;

  d = cdesc;
#ifdef EXTRA
  d[MOVESMADE]++;
#endif
  if (d[TIMESTOP])
    {
      if (--d[TIMESTOP] <= 0)
	bottomline ();
      return;
    }				/* for stop time spell */
  flag = 0;

  if (d[STRENGTH] < 3)
    {
      d[STRENGTH] = 3;
      flag = 1;
    }
  if (d[HP] != d[HPMAX])
    if (d[REGENCOUNTER]-- <= 0)	/*  regenerate hit points   */
      {
	d[REGENCOUNTER] = 22 + (d[HARDGAME] << 1) - d[LEVEL];
	if ((d[HP] += d[REGEN]) > d[HPMAX])
	  d[HP] = d[HPMAX];
	bottomhp ();
      }

  if (d[SPELLS] < d[SPELLMAX])	/*  regenerate spells   */
    if (d[ECOUNTER]-- <= 0)
      {
	d[ECOUNTER] = 100 + 4 * (d[HARDGAME] - d[LEVEL] - d[ENERGY]);
	d[SPELLS]++;
	bottomspell ();
      }

  if (d[HERO])
    if (--d[HERO] <= 0)
      {
	for (i = 0; i < 6; i++)
	  d[i] -= 10;
	flag = 1;
      }
  if (d[ALTPRO])
    if (--d[ALTPRO] <= 0)
      {
	d[MOREDEFENSES] -= 3;
	flag = 1;
      }
  if (d[PROTECTIONTIME])
    if (--d[PROTECTIONTIME] <= 0)
      {
	d[MOREDEFENSES] -= 2;
	flag = 1;
      }
  if (d[DEXCOUNT])
    if (--d[DEXCOUNT] <= 0)
      {
	d[DEXTERITY] -= 3;
	flag = 1;
      }
  if (d[STRCOUNT])
    if (--d[STRCOUNT] <= 0)
      {
	d[STREXTRA] -= 3;
	flag = 1;
      }
  if (d[BLINDCOUNT])
    if (--d[BLINDCOUNT] <= 0)
      {
	cursors ();
	lprcat ("\nThe blindness lifts  ");
      }
  if (d[CONFUSE])
    if (--d[CONFUSE] <= 0)
      {
	cursors ();
	lprcat ("\nYou regain your senses");
      }
  if (d[GIANTSTR])
    if (--d[GIANTSTR] <= 0)
      {
	d[STREXTRA] -= 20;
	flag = 1;
      }
  if (d[CHARMCOUNT])
    if ((--d[CHARMCOUNT]) <= 0)
      flag = 1;
  if (d[INVISIBILITY])
    if ((--d[INVISIBILITY]) <= 0)
      flag = 1;
  if (d[CANCELLATION])
    if ((--d[CANCELLATION]) <= 0)
      flag = 1;
  if (d[WTW])
    if ((--d[WTW]) <= 0)
      flag = 1;
  if (d[HASTESELF])
    if ((--d[HASTESELF]) <= 0)
      flag = 1;
  if (d[AGGRAVATE])
    --d[AGGRAVATE];
  if (d[SCAREMONST])
    if ((--d[SCAREMONST]) <= 0)
      flag = 1;
  if (d[STEALTH])
    if ((--d[STEALTH]) <= 0)
      flag = 1;
  if (d[AWARENESS])
    --d[AWARENESS];
  if (d[HOLDMONST])
    if ((--d[HOLDMONST]) <= 0)
      flag = 1;
  if (d[HASTEMONST])
    --d[HASTEMONST];
  if (d[FIRERESISTANCE])
    if ((--d[FIRERESISTANCE]) <= 0)
      flag = 1;
  if (d[GLOBE])
    if (--d[GLOBE] <= 0)
      {
	d[MOREDEFENSES] -= 10;
	flag = 1;
      }
  if (d[SPIRITPRO])
    if (--d[SPIRITPRO] <= 0)
      flag = 1;
  if (d[UNDEADPRO])
    if (--d[UNDEADPRO] <= 0)
      flag = 1;
  if (d[HALFDAM])
    if (--d[HALFDAM] <= 0)
      {
	cursors ();
	lprcat ("\nYou now feel better ");
      }
  if (d[SEEINVISIBLE])
    if (--d[SEEINVISIBLE] <= 0)
      {
	monstnamelist[INVISIBLESTALKER] = floorc;
	if (!d[BLINDCOUNT])
	  {
	    cursors ();
	    lprcat ("\nYou feel your vision return to normal");
	  }
      }
  if (d[ITCHING])
    {
      if (d[ITCHING] > 1)
	if ((d[WEAR] != -1) || (d[SHIELD] != -1))
	  if (rnd (100) < 50)
	    {
	      d[WEAR] = d[SHIELD] = -1;
	      cursors ();
	      lprcat
		("\nThe hysteria of itching forces you to remove your armor!");
	      recalc ();
	      bottomline ();
	    }
      if (--d[ITCHING] <= 0)
	{
	  cursors ();
	  lprcat ("\nYou now feel the irritation subside!");
	}
    }
  if (d[CLUMSINESS])
    {
      if (d[WIELD] != -1)
	if (d[CLUMSINESS] > 1)
	  if (item[playerx][playery] == 0)	/* only if nothing there */
	    if (rnd (100) < 33)	/* drop your weapon due to clumsiness */
	      drop_object ((int) d[WIELD]);
      if (--d[CLUMSINESS] <= 0)
	{
	  cursors ();
	  lprcat ("\nYou now feel less awkward!");
	}
    }
  if (flag)
    bottomline ();
}
