mdw@git.distorted.org.uk Git - xor/blob - ui-curses.c

   1 /* -*-c-*-
   2  *
   3  * $Id$
   4  *
   5  * Curses user interface
   6  *
   7  * (c) 2003 Straylight/Edgeware
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of XOR.
  13  *
  14  * XOR is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * XOR is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with XOR; if not, write to the Free Software Foundation,
  26  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  27  */
  28
  29 /*----- Header files ------------------------------------------------------*/
  30
  31 #include "xor.h"
  32
  33 #if defined(HAVE_NCURSES_H)
  34 #  include <ncurses.h>
  35 #elif defined(HAVE_NCURSES_NCURSES_H)
  36 #  include <ncurses/ncurses.h>
  37 #else
  38 #  include <curses.h>
  39 #endif
  40
  41 #ifdef __CYGWIN__
  42 #  include <windows.h>
  43 #  undef usleep
  44 #  define usleep(n) Sleep(n / 1000);
  45 #endif
  46
  47 /*----- Data structures ---------------------------------------------------*/
  48
  49 struct ui_state {
  50   int vx, vy;
  51   level *l;
  52 };
  53
  54 /*---- Display setup ------------------------------------------------------*/
  55
  56 #define VIEWX 5
  57 #define VIEWY 3
  58 #define VIEWWD 8
  59 #define VIEWHT 8
  60 #define CELLHT 2
  61 #define CELLWD 3
  62
  63 #define STATUSX 40
  64 #define STATUSY 10
  65 #define STATUSWD 36
  66 #define STATUSHT 2
  67
  68 #define MESSAGEY 16
  69
  70 static chtype *dispmap[CHAR_MAX], mdispmap[CHAR_MAX];
  71
  72 static struct { int c; chtype m; chtype d[CELLHT * CELLWD]; } disptab[] = {
  73   { C_EMPTY,    ' ',    { ' ', ' ', ' ',   ' ', ' ', ' ' } },
  74   { C_PLAYER,   '$',    { '|', '~', '|',   '\\', '_', '/' } },
  75   { C_SPARE,    '%',    { '|', 'X', '|',   '\\', '_', '/' } },
  76   { C_EXIT,     '=',    { '|', '=', '|',   '|', '_', '|' } },
  77   { C_WALL,     '#',    { '#', '#', '#',   '#', '#', '#' } },
  78   { C_MASK,     '+',    { 'o', ' ', 'o',   ' ', '>', ' ' } },
  79   { C_NWMAP,    'M',    { '|', '~', '|',   '|', '_', '|' } },
  80   { C_NEMAP,    'M',    { '|', '~', '|',   '|', '_', '|' } },
  81   { C_SWMAP,    'M',    { '|', '~', '|',   '|', '_', '|' } },
  82   { C_SEMAP,    'M',    { '|', '~', '|',   '|', '_', '|' } },
  83   { C_DOT,      ':',    { ':', ':', ':',   ':', ':', ':' } },
  84   { C_WAVE,     '~',    { '~', '~', '~',   '~', '~', '~' } },
  85   { C_CHICKEN,  '<',    { '<', 'o', ')',   ' ', '(', ')' } },
  86   { C_FISH,     'V',    { ' ', 'V', ' ',   ' ', 'V', ' ' } },
  87   { C_HBOMB,    'U',    { '_', 'T', '_',   '|', '_', '|' } },
  88   { C_VBOMB,    'C',    { ' ', ',', '*',   '(', ')', ' ' } },
  89   { C_DOLLY,    '@',    { '\\', '@', '/',  '/', '=', '\\' } },
  90   { C_SWITCH,   '~',    { 'o', ' ', 'o',   ' ', '*', ' ' } },
  91   { C_BMUS,     'O',    { '/', '~', '\\',  '\\', '_', '/' } },
  92   { 0,          0,      { 0 } }
  93 };
  94
  95 /*----- Main code ---------------------------------------------------------*/
  96
  97 static void rect(int x, int y, int w, int h)
  98 {
  99   int i;
 100
 101   mvaddch(y - 1, x - 1, ACS_ULCORNER);
 102   for (i = 0; i < w; i++) addch(ACS_HLINE);
 103   addch(ACS_URCORNER);
 104   for (i = 0; i < h; i++) {
 105     mvaddch(y + i, x - 1, ACS_VLINE);
 106     mvaddch(y + i, x + w, ACS_VLINE);
 107   }
 108   mvaddch(y + h, x - 1, ACS_LLCORNER);
 109   for (i = 0; i < w; i++) addch(ACS_HLINE);
 110   addch(ACS_LRCORNER);
 111 }
 112
 113 static void hbar(int x, int y, int w)
 114 {
 115   int i;
 116
 117   move(y, x - 1);
 118   addch(ACS_LTEE);
 119   for (i = 0; i < w; i++) addch(ACS_HLINE);
 120   addch(ACS_RTEE);
 121 }
 122
 123 static void vbar(int x, int y, int h)
 124 {
 125   int i;
 126
 127   mvaddch(y - 1, x, ACS_TTEE);
 128   for (i = 0; i < h; i++) mvaddch(y + i, x, ACS_VLINE);
 129   mvaddch(y + h, x, ACS_BTEE);
 130 }
 131
 132 static void draw(void)
 133 {
 134   erase();
 135   rect(VIEWX, VIEWY, VIEWWD * CELLWD, VIEWHT * CELLHT);
 136   rect(STATUSX, STATUSY - 2, STATUSWD, STATUSHT + 2);
 137   hbar(STATUSX, STATUSY - 1, STATUSWD);
 138   vbar(STATUSX + STATUSWD - 5, STATUSY, STATUSHT);
 139 }
 140
 141 void ui_init(void)
 142 {
 143   int i;
 144
 145   /* --- Kick curses --- */
 146
 147   initscr();
 148   if (LINES < 25 || COLS < 80) {
 149     endwin();
 150     fprintf(stderr, "terminal too small\n");
 151     exit(1);
 152   }
 153   cbreak();
 154   noecho();
 155   nonl();
 156   intrflush(stdscr, FALSE);
 157   keypad(stdscr, TRUE);
 158   draw();
 159
 160   /* --- Initialize the display map --- */
 161
 162   for (i = 0; disptab[i].c; i++) {
 163     dispmap[disptab[i].c] = disptab[i].d;
 164     mdispmap[disptab[i].c] = disptab[i].m;
 165   }
 166   for (i = 0; i < CELLWD * CELLHT; i++)
 167     dispmap[C_WALL][i] = ' ' | A_REVERSE;
 168   mdispmap[C_WALL] = ' ' | A_REVERSE;
 169 }
 170
 171 static void redraw(ui_state *u)
 172 {
 173   const level *l = u->l;
 174   int x, y, i, j, c;
 175
 176   for (y = 0; y < VIEWHT; y++) {
 177     for (j = 0; j < CELLHT; j++) {
 178       move(VIEWY + y * CELLHT + j, VIEWX);
 179       for (x = 0; x < VIEWWD; x++) {
 180         c = CELL(l, u->vx + x, u->vy + y) & CF_CELLMASK;
 181         if ((l->f & LF_DARK) && (cellmap[c]->f & CF_HIDE)) c = C_EMPTY;
 182         for (i = 0; i < CELLWD; i++) {
 183           addch(dispmap[c][i + j * CELLWD]);
 184         }
 185       }
 186     }
 187   }
 188
 189   mvaddstr(STATUSY - 2, STATUSX + (STATUSWD - strlen(u->l->name))/2,
 190            u->l->name);
 191
 192   mvprintw(STATUSY, STATUSX, "Masks: %2d/%2d", l->m, l->mtot);
 193   mvprintw(STATUSY + 1, STATUSX, "Moves: %4d/%4d", l->v, l->vtot);
 194   move(STATUSY, STATUSX + STATUSWD - 4);
 195   if (l->f & LF_NWMAP) { addch(' ' | A_REVERSE); addch(' ' | A_REVERSE); }
 196   else { addch(' '); addch(' '); }
 197   if (l->f & LF_NEMAP) { addch(' ' | A_REVERSE); addch(' ' | A_REVERSE); }
 198   else { addch(' '); addch(' '); }
 199   move(STATUSY + 1, STATUSX + STATUSWD - 4);
 200   if (l->f & LF_SWMAP) { addch(' ' | A_REVERSE); addch(' ' | A_REVERSE); }
 201   else { addch(' '); addch(' '); }
 202   if (l->f & LF_SEMAP) { addch(' ' | A_REVERSE); addch(' ' | A_REVERSE); }
 203   else { addch(' '); addch(' '); }
 204 }
 205
 206 void ui_update(ui_state *u)
 207 {
 208   redraw(u);
 209   refresh();
 210 }
 211
 212 void ui_explode(struct ui_state *u, const point *pt, int n)
 213 {
 214   int i, j, x, y;
 215   static const chtype frame[][CELLWD * CELLHT] = {
 216     { '\\', '|', '/',  '/', '|', '\\' },
 217     { '*', '*', '*',   '*', '*', '*' },
 218     { ':', ':', ':',   ':', ':', ':' },
 219     { '.', '.', '.',   ':', ':', ':' },
 220     { ' ', ' ', ' ',   ':', ':', ':' },
 221     { ' ', ' ', ' ',   '.', '.', '.' }
 222   };
 223
 224   redraw(u);
 225   refresh();
 226   for (i = 0; i < sizeof(frame)/sizeof(frame[0]); i++) {
 227     for (j = 0; j < n; j++) {
 228       if (pt[j].x < u->vx || pt[j].x >= u->vx + VIEWWD ||
 229           pt[j].y < u->vy || pt[j].y >= u->vy + VIEWHT)
 230         continue;
 231       for (y = 0; y < CELLHT; y++) {
 232         move(VIEWY + (pt[j].y - u->vy) * CELLHT + y,
 233              VIEWX + (pt[j].x - u->vx) * CELLWD);
 234         for (x = 0; x < CELLWD; x++)
 235           addch(frame[i][x + CELLWD * y]);
 236       }
 237     }
 238     refresh();
 239     usleep(10000);
 240   }
 241 }
 242
 243 void ui_track(ui_state *u, int x, int y)
 244 {
 245   if (u->vx == -1) {
 246     u->vx = x - VIEWWD/2;
 247     u->vy = y - VIEWHT/2;
 248     if (u->vx < 0) u->vx = 0;
 249     else if (u->vx > u->l->w - VIEWWD) u->vx = u->l->w - VIEWWD;
 250     if (u->vy < 0) u->vy = 0;
 251     else if (u->vy > u->l->h - VIEWHT) u->vy = u->l->h - VIEWHT;
 252   } else {
 253     if (u->vx + 1 > x) u->vx = x - 1;
 254     else if (u->vx + VIEWWD - 2 < x) u->vx = x - VIEWWD + 2;
 255     if (u->vy + 1 > y) u->vy = y - 1;
 256     else if (u->vy + VIEWHT - 2 < y) u->vy = y - VIEWHT + 2;
 257   }
 258 }
 259
 260 ui_state *ui_start(level *l, int x, int y)
 261 {
 262   ui_state *u = CREATE(ui_state);
 263
 264   u->l = l;
 265   u->vx = u->vy = -1;
 266   ui_track(u, x, y);
 267   return (u);
 268 }
 269
 270 void ui_switch(ui_state *u)
 271 {
 272   redraw(u);
 273 }
 274
 275 void ui_frame(struct ui_state *u)
 276 {
 277   redraw(u);
 278   refresh();
 279   usleep(20000);
 280 }
 281
 282 void ui_message(struct ui_state *u, const char *p)
 283 {
 284   size_t n = strlen(p);
 285   rect((COLS - n)/2, MESSAGEY, n, 1);
 286   mvaddstr(MESSAGEY, (COLS - n)/2, p);
 287   refresh();
 288   usleep(500000);
 289   draw();
 290   redraw(u);
 291 }
 292
 293 static void showmap(ui_state *u)
 294 {
 295   const level *l = u->l;
 296   int wd, ht, x, y;
 297   int vs = 0, hs = 0, maxv, maxh;
 298   int i, j;
 299   int bit;
 300   int c;
 301
 302   erase();
 303   wd = l->w; if (wd + 6 > COLS) wd = COLS - 6;
 304   ht = l->h; if (ht + 6 > LINES) ht = LINES - 6;
 305   x = (COLS - wd)/2; y = (LINES - ht)/2;
 306   rect(x, y, wd, ht);
 307   maxh = l->w - wd; maxv = l->h - ht;
 308
 309   for (;;) {
 310     for (j = 0; j < ht; j++) {
 311       move(y + j, x);
 312       for (i = 0; i < wd; i++) {
 313         bit = LF_NWMAP;
 314         if (hs + i >= l->w/2) bit <<= 1;
 315         if (vs + j >= l->h/2) bit <<= 2;
 316         if (!(l->f & bit))
 317           c = C_EMPTY;
 318         else {
 319           c = CELL(l, hs + i, vs + j) & CF_CELLMASK;
 320           if (!(cellmap[c]->f & CF_MAP)) c = C_EMPTY;
 321         }
 322         addch(mdispmap[c]);
 323       }
 324     }
 325     switch (getch()) {
 326       case 'q': case 'Q': case 'm': case 'M': case 0x1b: goto done;
 327       case KEY_UP:    case 'k': case 'K': vs--; break;
 328       case KEY_DOWN:  case 'j': case 'J': vs++; break;
 329       case KEY_LEFT:  case 'h': case 'H': hs--; break;
 330       case KEY_RIGHT: case 'l': case 'L': hs++; break;
 331     }
 332     if (hs < 0) hs = 0; else if (hs > maxh) hs = maxh;
 333     if (vs < 0) vs = 0; else if (vs > maxv) vs = maxv;
 334   }
 335 done:
 336   draw();
 337   redraw(u);
 338   return;
 339 }
 340
 341 void ui_go(struct game_state *g, ui_state *u)
 342 {
 343   refresh();
 344   switch (getch()) {
 345     case KEY_UP:    case 'k': case 'K': game_move(g,  0, -1); break;
 346     case KEY_DOWN:  case 'j': case 'J': game_move(g,  0, +1); break;
 347     case KEY_LEFT:  case 'h': case 'H': game_move(g, -1,  0); break;
 348     case KEY_RIGHT: case 'l': case 'L': game_move(g, +1,  0); break;
 349     case 'u': case 'U': undo(g); break;
 350     case 'r': case 'R': redo(g); break;
 351     case ' ': case '\r': game_switch(g); break;
 352     case 'm': case 'M': showmap(u); break;
 353     case 0x1b: case 'q': case 'Q': game_quit(g); break;
 354   }
 355 }
 356
 357 void ui_destroy(ui_state *u)
 358 {
 359   DESTROY(u);
 360 }
 361
 362 void ui_exit(void)
 363 {
 364   endwin();
 365 }
 366
 367 /*----- That's all, folks -------------------------------------------------*/