1 /* $OpenBSD: graphics.c,v 1.11 2015/12/31 16:50:29 mestre Exp $ */ 2 /* $NetBSD: graphics.c,v 1.3 1995/03/21 15:04:04 cgd Exp $ */ 3 4 /*- 5 * Copyright (c) 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Ed James. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 /* 37 * Copyright (c) 1987 by Ed James, UC Berkeley. All rights reserved. 38 * 39 * Copy permission is hereby granted provided that this notice is 40 * retained on all partial or complete copies. 41 * 42 * For more info on this and all of my stuff, mail edjames@berkeley.edu. 43 */ 44 45 #include <curses.h> 46 #include <err.h> 47 #include <stdlib.h> 48 49 #include "def.h" 50 #include "extern.h" 51 52 #define C_TOPBOTTOM '-' 53 #define C_LEFTRIGHT '|' 54 #define C_AIRPORT '=' 55 #define C_LINE '+' 56 #define C_BACKROUND '.' 57 #define C_BEACON '*' 58 #define C_CREDIT '*' 59 60 WINDOW *radar, *cleanradar, *credit, *input, *planes; 61 62 int 63 getAChar(void) 64 { 65 int c; 66 67 if ((c = getchar()) == EOF && feof(stdin)) 68 quit(0); 69 return (c); 70 } 71 72 void 73 erase_all(void) 74 { 75 PLANE *pp; 76 77 for (pp = air.head; pp != NULL; pp = pp->next) { 78 wmove(cleanradar, pp->ypos, pp->xpos * 2); 79 wmove(radar, pp->ypos, pp->xpos * 2); 80 waddch(radar, winch(cleanradar)); 81 wmove(cleanradar, pp->ypos, pp->xpos * 2 + 1); 82 wmove(radar, pp->ypos, pp->xpos * 2 + 1); 83 waddch(radar, winch(cleanradar)); 84 } 85 } 86 87 void 88 draw_all(void) 89 { 90 PLANE *pp; 91 92 for (pp = air.head; pp != NULL; pp = pp->next) { 93 if (pp->status == S_MARKED) 94 wstandout(radar); 95 wmove(radar, pp->ypos, pp->xpos * 2); 96 waddch(radar, name(pp)); 97 waddch(radar, '0' + pp->altitude); 98 if (pp->status == S_MARKED) 99 wstandend(radar); 100 } 101 wrefresh(radar); 102 planewin(); 103 wrefresh(input); /* return cursor */ 104 fflush(stdout); 105 } 106 107 void 108 setup_screen(const C_SCREEN *scp) 109 { 110 static char buffer[BUFSIZ]; 111 int i, j; 112 char str[3]; 113 const char *airstr; 114 115 initscr(); 116 /* size of screen depends on chosen game, but we need at least 80 117 * columns for "Information area" to work. */ 118 if (LINES < (INPUT_LINES + scp->height) || 119 COLS < (PLANE_COLS + 2 * scp->width) || 120 COLS < 80) { 121 endwin(); 122 errx(1, "screen too small."); 123 } 124 setvbuf(stdout, buffer, _IOFBF, sizeof buffer); 125 input = newwin(INPUT_LINES, COLS - PLANE_COLS, LINES - INPUT_LINES, 0); 126 credit = newwin(INPUT_LINES, PLANE_COLS, LINES - INPUT_LINES, 127 COLS - PLANE_COLS); 128 planes = newwin(LINES - INPUT_LINES, PLANE_COLS, 0, COLS - PLANE_COLS); 129 130 str[2] = '\0'; 131 132 if (radar != NULL) 133 delwin(radar); 134 radar = newwin(scp->height, scp->width * 2, 0, 0); 135 136 if (cleanradar != NULL) 137 delwin(cleanradar); 138 cleanradar = newwin(scp->height, scp->width * 2, 0, 0); 139 140 /* minus one here to prevent a scroll */ 141 for (i = 0; i < PLANE_COLS - 1; i++) { 142 wmove(credit, 0, i); 143 waddch(credit, C_CREDIT); 144 wmove(credit, INPUT_LINES - 1, i); 145 waddch(credit, C_CREDIT); 146 } 147 wmove(credit, INPUT_LINES / 2, 1); 148 waddstr(credit, AUTHOR_STR); 149 150 for (i = 1; i < scp->height - 1; i++) { 151 for (j = 1; j < scp->width - 1; j++) { 152 wmove(radar, i, j * 2); 153 waddch(radar, C_BACKROUND); 154 } 155 } 156 157 /* 158 * Draw the lines first, since people like to draw lines 159 * through beacons and exit points. 160 */ 161 str[0] = C_LINE; 162 for (i = 0; i < scp->num_lines; i++) { 163 str[1] = ' '; 164 draw_line(radar, scp->line[i].p1.x, scp->line[i].p1.y, 165 scp->line[i].p2.x, scp->line[i].p2.y, str); 166 } 167 168 str[0] = C_TOPBOTTOM; 169 str[1] = C_TOPBOTTOM; 170 wmove(radar, 0, 0); 171 for (i = 0; i < scp->width - 1; i++) 172 waddstr(radar, str); 173 waddch(radar, C_TOPBOTTOM); 174 175 str[0] = C_TOPBOTTOM; 176 str[1] = C_TOPBOTTOM; 177 wmove(radar, scp->height - 1, 0); 178 for (i = 0; i < scp->width - 1; i++) 179 waddstr(radar, str); 180 waddch(radar, C_TOPBOTTOM); 181 182 for (i = 1; i < scp->height - 1; i++) { 183 wmove(radar, i, 0); 184 waddch(radar, C_LEFTRIGHT); 185 wmove(radar, i, (scp->width - 1) * 2); 186 waddch(radar, C_LEFTRIGHT); 187 } 188 189 str[0] = C_BEACON; 190 for (i = 0; i < scp->num_beacons; i++) { 191 str[1] = '0' + i; 192 wmove(radar, scp->beacon[i].y, scp->beacon[i].x * 2); 193 waddstr(radar, str); 194 } 195 196 for (i = 0; i < scp->num_exits; i++) { 197 wmove(radar, scp->exit[i].y, scp->exit[i].x * 2); 198 waddch(radar, '0' + i); 199 } 200 201 airstr = "^?>?v?<?"; 202 for (i = 0; i < scp->num_airports; i++) { 203 str[0] = airstr[scp->airport[i].dir]; 204 str[1] = '0' + i; 205 wmove(radar, scp->airport[i].y, scp->airport[i].x * 2); 206 waddstr(radar, str); 207 } 208 209 overwrite(radar, cleanradar); 210 wrefresh(radar); 211 wrefresh(credit); 212 fflush(stdout); 213 } 214 215 void 216 draw_line(WINDOW *w, int x, int y, int lx, int ly, const char *s) 217 { 218 int dx, dy; 219 220 dx = SGN(lx - x); 221 dy = SGN(ly - y); 222 for (;;) { 223 wmove(w, y, x * 2); 224 waddstr(w, s); 225 if (x == lx && y == ly) 226 break; 227 x += dx; 228 y += dy; 229 } 230 } 231 232 void 233 ioclrtoeol(int pos) 234 { 235 wmove(input, 0, pos); 236 wclrtoeol(input); 237 wrefresh(input); 238 fflush(stdout); 239 } 240 241 void 242 iomove(int pos) 243 { 244 wmove(input, 0, pos); 245 wrefresh(input); 246 fflush(stdout); 247 } 248 249 void 250 ioaddstr(int pos, const char *str) 251 { 252 wmove(input, 0, pos); 253 waddstr(input, str); 254 wrefresh(input); 255 fflush(stdout); 256 } 257 258 void 259 ioclrtobot(void) 260 { 261 wclrtobot(input); 262 wrefresh(input); 263 fflush(stdout); 264 } 265 266 void 267 ioerror(int pos, int len, const char *str) 268 { 269 int i; 270 271 wmove(input, 1, pos); 272 for (i = 0; i < len; i++) 273 waddch(input, '^'); 274 wmove(input, 2, 0); 275 waddstr(input, str); 276 wrefresh(input); 277 fflush(stdout); 278 } 279 280 void 281 quit(int dummy) 282 { 283 int c, y, x; 284 struct itimerval itv; 285 286 getyx(input, y, x); 287 wmove(input, 2, 0); 288 waddstr(input, "Really quit? (y/n) "); 289 wclrtobot(input); 290 wrefresh(input); 291 fflush(stdout); 292 293 c = getchar(); 294 if (c == EOF || c == 'y') { 295 /* disable timer */ 296 itv.it_value.tv_sec = 0; 297 itv.it_value.tv_usec = 0; 298 setitimer(ITIMER_REAL, &itv, NULL); 299 fflush(stdout); 300 clear(); 301 refresh(); 302 endwin(); 303 log_score(0); 304 exit(0); 305 } 306 wmove(input, 2, 0); 307 wclrtobot(input); 308 wmove(input, y, x); 309 wrefresh(input); 310 fflush(stdout); 311 } 312 313 void 314 planewin(void) 315 { 316 PLANE *pp; 317 int warning = 0; 318 319 wclear(planes); 320 321 wmove(planes, 0,0); 322 323 wprintw(planes, "Time: %-4d Safe: %d", clck, safe_planes); 324 wmove(planes, 2, 0); 325 326 waddstr(planes, "pl dt comm"); 327 for (pp = air.head; pp != NULL; pp = pp->next) { 328 if (waddch(planes, '\n') == ERR) { 329 warning++; 330 break; 331 } 332 waddstr(planes, command(pp)); 333 } 334 waddch(planes, '\n'); 335 for (pp = ground.head; pp != NULL; pp = pp->next) { 336 if (waddch(planes, '\n') == ERR) { 337 warning++; 338 break; 339 } 340 waddstr(planes, command(pp)); 341 } 342 if (warning) { 343 wmove(planes, LINES - INPUT_LINES - 1, 0); 344 waddstr(planes, "---- more ----"); 345 wclrtoeol(planes); 346 } 347 wrefresh(planes); 348 fflush(stdout); 349 } 350 351 void 352 loser(const PLANE *p, const char *s) 353 { 354 int c; 355 struct itimerval itv; 356 357 /* disable timer */ 358 itv.it_value.tv_sec = 0; 359 itv.it_value.tv_usec = 0; 360 setitimer(ITIMER_REAL, &itv, NULL); 361 362 wmove(input, 0, 0); 363 wclrtobot(input); 364 if (p == NULL) 365 wprintw(input, "%s\n\nHit space for top players list...", s); 366 else 367 wprintw(input, "Plane '%c' %s\n\nHit space for top players list...", 368 name(p), s); 369 wrefresh(input); 370 fflush(stdout); 371 while ((c = getchar()) != EOF && c != ' ') 372 ; 373 clear(); /* move to top of screen */ 374 refresh(); 375 endwin(); 376 log_score(0); 377 exit(0); 378 } 379 380 void 381 redraw(void) 382 { 383 clear(); 384 refresh(); 385 386 touchwin(radar); 387 wrefresh(radar); 388 touchwin(planes); 389 wrefresh(planes); 390 touchwin(credit); 391 wrefresh(credit); 392 393 /* refresh input last to get cursor in right place */ 394 touchwin(input); 395 wrefresh(input); 396 fflush(stdout); 397 } 398 399 void 400 done_screen(void) 401 { 402 clear(); 403 refresh(); 404 endwin(); /* clean up curses */ 405 } 406