2 * Elite - The New Kind.
4 * Reverse engineered from the BBC disk version of Elite.
5 * Additional material by C.J.Pinder.
7 * The original Elite code is (C) I.Bell & D.Braben 1984.
8 * This version re-engineered in C by C.J.Pinder 1999-2001.
10 * email: <christian@newkind.co.uk>
28 void write_config_file (void)
32 fp = fopen ("newkind.cfg", "w");
36 fprintf (fp, "%d\t\t# Game Speed, the lower the number the faster the game.\n", speed_cap);
38 fprintf (fp, "%d\t\t# Graphics: 0 = Solid, 1 = Wireframe\n", wireframe);
40 fprintf (fp, "%d\t\t# Anti-Alias Wireframe: 0 = Normal, 1 = Anti-Aliased\n", anti_alias_gfx);
42 fprintf (fp, "%d\t\t# Planet style: 0 = Wireframe, 1 = Green, 2 = SNES, 3 = Fractal\n", planet_render_style);
44 fprintf (fp, "%d\t\t# Planet Descriptions: 0 = Tree Grubs, 1 = Hoopy Casinos\n", hoopy_casinos);
46 fprintf (fp, "%d\t\t# Instant dock: 0 = off, 1 = on\n", instant_dock);
48 fprintf (fp, "newscan.cfg\t# Name of scanner config file to use.\n");
49 fprintf (fp, "%d\t\t# Run in a window: 0 = off, 1 = on\n", prefer_window);
50 fprintf (fp, "%d\t\t# Remap keys in alternate views: 0 = off, 1 = on\n", remap_keys);
57 * Read a line from a .cfg file.
58 * Ignore blanks, comments and strip white space.
61 void read_cfg_line (char *str, int max_size, FILE *fp)
67 fgets (str, max_size, fp);
69 for (s = str; *s; s++) /* End of line at LF or # */
71 if ((*s == '\n') || (*s == '#'))
78 if (s != str) /* Trim any trailing white space */
90 } while (*str == '\0');
95 * Read in the scanner .cfg file.
98 void read_scanner_config_file (char *filename)
103 fp = fopen (filename, "r");
107 read_cfg_line (str, sizeof(str), fp);
108 strcpy (scanner_filename, str);
110 read_cfg_line (str, sizeof(str), fp);
111 sscanf (str, "%d,%d", &scanner_cx, &scanner_cy);
114 read_cfg_line (str, sizeof(str), fp);
115 sscanf (str, "%d,%d", &compass_centre_x, &compass_centre_y);
116 compass_centre_y += 385;
118 read_cfg_line (str, sizeof(str), fp);
119 sscanf (str, "%d,%d,%d", &condition_x, &condition_y, &condition_r);
122 read_cfg_line (str, sizeof(str), fp);
123 sscanf (str, "%d,%d", &zoom_x, &zoom_y);
130 * Read in the newkind.cfg file.
133 void read_config_file (void)
138 fp = fopen ("newkind.cfg", "r");
142 read_cfg_line (str, sizeof(str), fp);
143 sscanf (str, "%d", &speed_cap);
145 read_cfg_line (str, sizeof(str), fp);
146 sscanf (str, "%d", &wireframe);
148 read_cfg_line (str, sizeof(str), fp);
149 sscanf (str, "%d", &anti_alias_gfx);
151 read_cfg_line (str, sizeof(str), fp);
152 sscanf (str, "%d", &planet_render_style);
154 read_cfg_line (str, sizeof(str), fp);
155 sscanf (str, "%d", &hoopy_casinos);
157 read_cfg_line (str, sizeof(str), fp);
158 sscanf (str, "%d", &instant_dock);
160 read_cfg_line (str, sizeof(str), fp);
161 read_scanner_config_file (str);
163 read_cfg_line (str, sizeof(str), fp);
164 sscanf (str, "%d", &prefer_window);
166 read_cfg_line (str, sizeof(str), fp);
167 sscanf (str, "%d", &remap_keys);
172 int checksum (unsigned char *block)
179 for (i = 0x49; i > 0; i--)
181 acc += block[i-1] + carry;
191 int save_commander_file (char *path)
194 unsigned char block[256];
198 fp = fopen (path, "wb");
202 block[0] = cmdr.mission;
203 block[1] = docked_planet.d;
204 block[2] = docked_planet.b;
205 block[3] = cmdr.galaxy.a;
206 block[4] = cmdr.galaxy.b;
207 block[5] = cmdr.galaxy.c;
208 block[6] = cmdr.galaxy.d;
209 block[7] = cmdr.galaxy.e;
210 block[8] = cmdr.galaxy.f;
211 block[9] = (cmdr.credits >> 24) & 255;
212 block[10] = (cmdr.credits >> 16) & 255;
213 block[11] = (cmdr.credits >> 8) & 255;
214 block[12] = cmdr.credits & 255;
215 block[13] = cmdr.fuel;
217 block[15] = cmdr.galaxy_number;
218 block[16] = cmdr.front_laser;
219 block[17] = cmdr.rear_laser;
220 block[18] = cmdr.left_laser;
221 block[19] = cmdr.right_laser;
224 block[22] = cmdr.cargo_capacity + 2;
226 for (i = 0; i < NO_OF_STOCK_ITEMS; i++)
227 block[23+i] = cmdr.current_cargo[i];
229 block[40] = cmdr.ecm ? 255 : 0;
230 block[41] = cmdr.fuel_scoop ? 255 : 0;
231 block[42] = cmdr.energy_bomb ? 0x7F : 0;
232 block[43] = cmdr.energy_unit;
233 block[44] = cmdr.docking_computer ? 255 : 0;
234 block[45] = cmdr.galactic_hyperdrive ? 255 : 0;
235 block[46] = cmdr.escape_pod ? 255 : 0;
240 block[51] = cmdr.missiles;
241 block[52] = cmdr.legal_status;
243 for (i = 0; i < NO_OF_STOCK_ITEMS; i++)
244 block[53+i] = stock_market[i].current_quantity;
246 block[70] = cmdr.market_rnd;
247 block[71] = cmdr.score & 255;
248 block[72] = cmdr.score >> 8;
251 chk = checksum (block);
253 block[74] = chk ^ 0xA9;
256 for (i = 76; i < 256; i++)
259 if (fwrite (block, 256, 1, fp) != 1)
262 if (fclose (fp) == EOF)
269 int load_commander_file (char *path)
272 unsigned char block[256];
276 fp = fopen (path, "rb");
280 if (fread (block, 256, 1, fp) != 1)
283 chk = checksum (block);
285 if ((block[74] != (chk ^ 0xA9)) || (block[75] != chk))
288 saved_cmdr.mission = block[0];
290 saved_cmdr.ship_x = block[1];
291 saved_cmdr.ship_y = block[2];
293 saved_cmdr.galaxy.a = block[3];
294 saved_cmdr.galaxy.b = block[4];
295 saved_cmdr.galaxy.c = block[5];
296 saved_cmdr.galaxy.d = block[6];
297 saved_cmdr.galaxy.e = block[7];
298 saved_cmdr.galaxy.f = block[8];;
300 saved_cmdr.credits = block[9] << 24;
301 saved_cmdr.credits += block[10] << 16;
302 saved_cmdr.credits += block[11] << 8;
303 saved_cmdr.credits += block[12];
305 saved_cmdr.fuel = block[13];
307 saved_cmdr.galaxy_number = block[15];
308 saved_cmdr.front_laser = block[16];
309 saved_cmdr.rear_laser = block[17];
310 saved_cmdr.left_laser = block[18];
311 saved_cmdr.right_laser = block[19];
313 saved_cmdr.cargo_capacity = block[22] - 2;
315 for (i = 0; i < NO_OF_STOCK_ITEMS; i++)
316 saved_cmdr.current_cargo[i] = block[23+i];
318 saved_cmdr.ecm = block[40];
319 saved_cmdr.fuel_scoop = block[41];
320 saved_cmdr.energy_bomb = block[42];
321 saved_cmdr.energy_unit = block[43];
322 saved_cmdr.docking_computer = block[44];
323 saved_cmdr.galactic_hyperdrive = block[45];
324 saved_cmdr.escape_pod = block[46];
325 saved_cmdr.missiles = block[51];
326 saved_cmdr.legal_status = block[52];
328 for (i = 0; i < NO_OF_STOCK_ITEMS; i++)
329 saved_cmdr.station_stock[i] = block[53+i];
331 saved_cmdr.market_rnd = block[70];
333 saved_cmdr.score = block[71];
334 saved_cmdr.score += block[72] << 8;
336 if (fclose (fp) == EOF)