/*
** Astrolog (Version 4.00) File: intrpret.c
**
** IMPORTANT NOTICE: the graphics database and chart display routines
** used in this program are Copyright (C) 1991-1993 by Walter D. Pullen
** (cruiser1@stein.u.washington.edu). Permission is granted to freely
** use and distribute these routines provided one doesn't sell,
** restrict, or profit from them in any way. Modification is allowed
** provided these notices remain with any altered or edited versions of
** the program.
**
** The main planetary calculation routines used in this program have
** been Copyrighted and the core of this program is basically a
** conversion to C of the routines created by James Neely as listed in
** Michael Erlewine's 'Manual of Computer Programming for Astrologers',
** available from Matrix Software. The copyright gives us permission to
** use the routines for personal use but not to sell them or profit from
** them in any way.
**
** The PostScript code within the core graphics routines are programmed
** and Copyright (C) 1992-1993 by Brian D. Willoughby
** (brianw@sounds.wa.com). Conditions are identical to those above.
**
** The extended accurate ephemeris databases and formulas are from the
** calculation routines in the program "Placalc" and are programmed and
** Copyright (C) 1989,1991,1993 by Astrodienst AG and Alois Treindl
** (alois@azur.ch). The use of that source code is subject to
** regulations made by Astrodienst Zurich, and the code is not in the
** public domain. This copyright notice must not be changed or removed
** by any user of this program.
**
** Initial programming 8/28,30, 9/10,13,16,20,23, 10/3,6,7, 11/7,10,21/1991.
** X Window graphics initially programmed 10/23-29/1991.
** PostScript graphics initially programmed 11/29-30/1992.
** Last code change made 12/31/1993.
*/

#include "astrolog.h"

#ifdef INTERPRET

/*
******************************************************************************
** Interpretation Subroutines.
******************************************************************************
*/

/* This function is used by the interpretation routines to print out lines  */
/* of text with newlines inserted just before the end of screen is reached. */

void FieldWord(string)
char *string;
{
  static char line[STRING*4];
  static int cursor = 0;
  int i, j;

  /* Hack: Dump buffer if function called with a null string. */

  if (*string == 0) {
    line[cursor] = 0;
    fprintf(S, "%s\n", line);
    cursor = 0;
    return;
  }
  if (cursor)
    line[cursor++] = ' ';
  for (i = 0; (line[cursor] = string[i]); i++, cursor++)
    ;

  /* When buffer overflows 80 columns, print out one line and start over. */

  while (cursor >= screenwidth-1) {
    for (i = screenwidth-1; line[i] != ' '; i--)
      ;
    line[i] = 0;
    fprintf(S, "%s\n", line);
    line[0] = line[1] = ' ';
    for (j = 2; (line[j] = line[i+j-1]) != 0; j++)
      ;
    cursor -= (i-1);
  }
}


/* Display a general interpretation of what each sign of the zodiac, house, */
/* and planet or object means. This is called to do the -I0 switch table.   */

void InterpretGeneral()
{
  char string[STRING];
  int i;

  fprintf(S,
    "Signs of the zodiac represent psychological characteristics.\n\n");
  for (i = 1; i <= SIGNS; i++) {
    AnsiColor(signansi(i));
    sprintf(string, "%s is", signname[i]); FieldWord(string);
    sprintf(string, "%s, and", description[i]); FieldWord(string);
    sprintf(string, "%s.", desire[i]); FieldWord(string);
    FieldWord("");
  }
  AnsiColor(DEFAULT);
  fprintf(S, "\nHouses represent different areas within one's life.\n\n");
  for (i = 1; i <= SIGNS; i++) {
    AnsiColor(signansi(i));
    sprintf(string, "The %d%s House is the area of life dealing with",
      i, post[i]); FieldWord(string);
    sprintf(string, "%s.", lifearea[i]); FieldWord(string);
    FieldWord("");
  }
  AnsiColor(DEFAULT);
  fprintf(S, "\nPlanets represent various parts of one's mind or self.\n\n");
  for (i = 1; i <= OBJECTI; i++) {
    if (ignore[i] || IsCusp(i))
      continue;
    AnsiColor(objectansi[i]);
    sprintf(string, "%s%s%s%s represents one's",
      i < 3 || (i >= THINGS && i <= OBJECTS) ? "The " : "",
      i == _NOD ? "North " : (i == _FOR ? "Part of " : ""), objectname[i],
      i == 13 ? " Athena" : ""); FieldWord(string);
    sprintf(string, "%s.", mindpart[i]); FieldWord(string);
    FieldWord("");
  }
  AnsiColor(DEFAULT);
}


/* Display a general interpretation of what each aspect type means. This */
/* is called when printing the interpretation table in the -I0 switch.   */

void InterpretAspectGeneral()
{
  char string[STRING];
  int i;

  fprintf(S, "\nAspects are different relationships between planets.\n\n");
  for (i = 1; i <= MIN(aspects, ASPECTI); i++) {
    AnsiColor(aspectansi[i]);
    sprintf(string, "When planets are %s, one", aspectname[i]);
    FieldWord(string); sprintf(string, interact[i], ""); FieldWord(string);
    FieldWord("another.");
    if (therefore[i][0]) {
      sprintf(string, "%s.", therefore[i]); FieldWord(string);
    }
    FieldWord("");
  }
  return;
}


/* Print the interpretation of each planet in sign and house, as specified */
/* with the -I switch. This is basically array accessing combining the     */
/* meanings of each planet, sign, and house, and a couple of other things. */

void InterpretLocation()
{
  char string[STRING], c;
  int i, j;

  printl();
  for (i = 1; i <= OBJECTI; i++) {
    if (ignore[i] || IsCusp(i))
      continue;
    AnsiColor(objectansi[i]);
    j = ZTOS(planet[i]); c = Dignify(i, j);
    sprintf(string, "%s%s%s%s in %s", ret[i] < 0.0 ? "Retrograde " : "",
      i == _NOD ? "North " : (i == _FOR ? "Part of " : ""), objectname[i],
      i == 13 ? " Athena" : "", signname[j]);
    FieldWord(string);
    sprintf(string, "and %d%s House:", inhouse[i], post[inhouse[i]]);
    FieldWord(string);
    FieldWord("This person's"); FieldWord(mindpart[i]); FieldWord("is");
    if (((int) planet[i]) % 30 < 10)
      FieldWord("very");
    sprintf(string, "%s, and", description[j]); FieldWord(string);
    sprintf(string, "%s.", desire[j]); FieldWord(string);
    FieldWord("Most often this manifests");
    if (ret[i] < 0.0 && i != _NOD)
      FieldWord("in an independent, backward, introverted manner, and");
    FieldWord("in the area of life dealing with");
    sprintf(string, "%s.", lifearea[inhouse[i]]); FieldWord(string);

    /* Extra information if planet is in its ruling, falling, etc, sign. */

    if (c == 'R')
      FieldWord("This is a major aspect of the person's psyche!");
    else if (c == 'F')
      FieldWord("(This bit plays only a minor part in the person's psyche.)");
    else if (c == 'e')
      FieldWord("It is easy for them to express this part of themself.");
    else if (c == 'd')
      FieldWord("It is difficult for them to express this part of themself.");
    FieldWord("");
  }
}


/* Print an interpretation for a particular aspect in effect in a chart. */
/* This is called from the InterpretGrid and ChartAspect routines.       */

void InterpretAspect(x, y)
int x, y;
{
  char string[STRING*2];
  int n;

  n = grid->n[x][y];
  if (n < 1 || n > ASPECTI ||
    IsCusp(x) || IsCusp(y) || x > OBJECTI || y > OBJECTI)
    return;
  AnsiColor(aspectansi[n]);
  sprintf(string, "%s %s %s: This person's", objectname[x],
    aspectname[n], objectname[y]);
  FieldWord(string); FieldWord(mindpart[x]);
  sprintf(string, interact[n],
    modifier[MIN(abs(grid->v[x][y])/150, 2)][n-1]);
  FieldWord(string);
  sprintf(string, "their %s.", mindpart[y]); FieldWord(string);
  if (therefore[n][0]) {
    sprintf(string, "%s.", therefore[n]); FieldWord(string);
  }
  FieldWord("");
}


/* Print the interpretation of each aspect in the aspect grid, as specified */
/* with the -g -I switch. Again, this is done by basically array accessing  */
/* of the meanings of the two planets in aspect and of the aspect itself.   */

void InterpretGrid()
{
  int i, j;

  for (i = 1; i < OBJECTI; i++) if (!ignore[i] && !IsCusp(i))
    for (j = i+1; j <= OBJECTI; j++) if (!ignore[j] && !IsCusp(i))
      InterpretAspect(i, j);
}


/* Print an interpretation for a particular midpoint in effect in a chart. */
/* This is called from the ChartMidpoint routine.                          */

void InterpretMidpoint(x, y)
int x, y;
{
  char string[STRING];
  int n, i;

  if (IsCusp(x) || IsCusp(y) || x > OBJECTI || y > OBJECTI)
    return;
  n = grid->n[y][x];
  AnsiColor(signansi(n));
  sprintf(string, "%s midpoint %s in %s: The merging of the person's",
    objectname[x], objectname[y], signname[n]);
  FieldWord(string); FieldWord(mindpart[x]);
  FieldWord("with their"); FieldWord(mindpart[y]);
  FieldWord("is");
  if (grid->v[y][x]/60 < 10)
    FieldWord("very");
  sprintf(string, "%s, and", description[n]); FieldWord(string);
  sprintf(string, "%s.", desire[n]); FieldWord(string);
  FieldWord("Most often this manifests in");
  if (ret[x]+ret[y] < 0.0 && x != _NOD && y != _NOD)
    FieldWord("an independent, backward, introverted manner, and");
  FieldWord("the area of life dealing with");
  i = HousePlaceIn(STOZ(n) + (real)grid->v[y][x]/60.0);
  sprintf(string, "%s.", lifearea[i]); FieldWord(string);
  FieldWord("");
}


/* This is a subprocedure of DisplayInDay(). Print the interpretation for */
/* a particular instance of the various exciting events that can happen.  */ 

void InterpretInDay(source, aspect, dest)
int source, aspect, dest;
{
  char string[STRING];

  if (source > OBJECTI || dest > OBJECTI)
    return;

  /* Interpret object changing direction. */

  if (aspect == _DIR) {
    AnsiColor(objectansi[source]);
    FieldWord("Energy representing"); FieldWord(mindpart[source]);
    FieldWord("will tend to manifest in");
    FieldWord(dest ? "an independent, backward, introverted" :
      "the standard, direct, open");
    FieldWord("manner.");
    FieldWord("");

  /* Interpret object entering new sign. */

  } else if (aspect == _SIG) {
    AnsiColor(objectansi[source]);
    FieldWord("Energy representing"); FieldWord(mindpart[source]);
    sprintf(string, "will be %s,", description[dest]);
    FieldWord(string);
    sprintf(string, "and it %s.", desire[dest]); FieldWord(string);
    FieldWord("");

  /* Interpret aspect between transiting planets. */

  } else if (aspect > 0 && aspect <= ASPECTI) {
    AnsiColor(aspectansi[aspect]);
    FieldWord("Energy representing"); FieldWord(mindpart[source]);
    sprintf(string, interact[aspect], modifier[1][aspect-1]);
    FieldWord(string);
    sprintf(string, "energies of %s.", mindpart[dest]); FieldWord(string);
    if (therefore[aspect][0]) {
      if (aspect > _CON) {
        sprintf(string, "%s.", therefore[aspect]); FieldWord(string);
      } else
        FieldWord("They will affect each other prominently.");
    }
    FieldWord("");
  }
}