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");
55 * Read a line from a .cfg file.
56 * Ignore blanks, comments and strip white space.
59 void read_cfg_line (char *str
, int max_size
, FILE *fp
)
65 fgets (str
, max_size
, fp
);
67 for (s
= str
; *s
; s
++) /* End of line at LF or # */
69 if ((*s
== '\n') || (*s
== '#'))
76 if (s
!= str
) /* Trim any trailing white space */
88 } while (*str
== '\0');
93 * Read in the scanner .cfg file.
96 void read_scanner_config_file (char *filename
)
101 fp
= fopen (filename
, "r");
105 read_cfg_line (str
, sizeof(str
), fp
);
106 strcpy (scanner_filename
, str
);
108 read_cfg_line (str
, sizeof(str
), fp
);
109 sscanf (str
, "%d,%d", &scanner_cx
, &scanner_cy
);
112 read_cfg_line (str
, sizeof(str
), fp
);
113 sscanf (str
, "%d,%d", &compass_centre_x
, &compass_centre_y
);
114 compass_centre_y
+= 385;
120 * Read in the newkind.cfg file.
123 void read_config_file (void)
128 fp
= fopen ("newkind.cfg", "r");
132 read_cfg_line (str
, sizeof(str
), fp
);
133 sscanf (str
, "%d", &speed_cap
);
135 read_cfg_line (str
, sizeof(str
), fp
);
136 sscanf (str
, "%d", &wireframe
);
138 read_cfg_line (str
, sizeof(str
), fp
);
139 sscanf (str
, "%d", &anti_alias_gfx
);
141 read_cfg_line (str
, sizeof(str
), fp
);
142 sscanf (str
, "%d", &planet_render_style
);
144 read_cfg_line (str
, sizeof(str
), fp
);
145 sscanf (str
, "%d", &hoopy_casinos
);
147 read_cfg_line (str
, sizeof(str
), fp
);
148 sscanf (str
, "%d", &instant_dock
);
150 read_cfg_line (str
, sizeof(str
), fp
);
151 read_scanner_config_file (str
);
156 int checksum (unsigned char *block
)
163 for (i
= 0x49; i
> 0; i
--)
165 acc
+= block
[i
-1] + carry
;
175 int save_commander_file (char *path
)
178 unsigned char block
[256];
182 fp
= fopen (path
, "wb");
186 block
[0] = cmdr
.mission
;
187 block
[1] = docked_planet
.d
;
188 block
[2] = docked_planet
.b
;
189 block
[3] = cmdr
.galaxy
.a
;
190 block
[4] = cmdr
.galaxy
.b
;
191 block
[5] = cmdr
.galaxy
.c
;
192 block
[6] = cmdr
.galaxy
.d
;
193 block
[7] = cmdr
.galaxy
.e
;
194 block
[8] = cmdr
.galaxy
.f
;
195 block
[9] = (cmdr
.credits
>> 24) & 255;
196 block
[10] = (cmdr
.credits
>> 16) & 255;
197 block
[11] = (cmdr
.credits
>> 8) & 255;
198 block
[12] = cmdr
.credits
& 255;
199 block
[13] = cmdr
.fuel
;
201 block
[15] = cmdr
.galaxy_number
;
202 block
[16] = cmdr
.front_laser
;
203 block
[17] = cmdr
.rear_laser
;
204 block
[18] = cmdr
.left_laser
;
205 block
[19] = cmdr
.right_laser
;
208 block
[22] = cmdr
.cargo_capacity
+ 2;
210 for (i
= 0; i
< NO_OF_STOCK_ITEMS
; i
++)
211 block
[23+i
] = cmdr
.current_cargo
[i
];
213 block
[40] = cmdr
.ecm ?
255 : 0;
214 block
[41] = cmdr
.fuel_scoop ?
255 : 0;
215 block
[42] = cmdr
.energy_bomb ?
0x7F : 0;
216 block
[43] = cmdr
.energy_unit
;
217 block
[44] = cmdr
.docking_computer ?
255 : 0;
218 block
[45] = cmdr
.galactic_hyperdrive ?
255 : 0;
219 block
[46] = cmdr
.escape_pod ?
255 : 0;
224 block
[51] = cmdr
.missiles
;
225 block
[52] = cmdr
.legal_status
;
227 for (i
= 0; i
< NO_OF_STOCK_ITEMS
; i
++)
228 block
[53+i
] = stock_market
[i
].current_quantity
;
230 block
[70] = cmdr
.market_rnd
;
231 block
[71] = cmdr
.score
& 255;
232 block
[72] = cmdr
.score
>> 8;
235 chk
= checksum (block
);
237 block
[74] = chk
^ 0xA9;
240 for (i
= 76; i
< 256; i
++)
243 if (fwrite (block
, 256, 1, fp
) != 1)
246 if (fclose (fp
) == EOF
)
253 int load_commander_file (char *path
)
256 unsigned char block
[256];
260 fp
= fopen (path
, "rb");
264 if (fread (block
, 256, 1, fp
) != 1)
267 chk
= checksum (block
);
269 if ((block
[74] != (chk
^ 0xA9)) || (block
[75] != chk
))
272 saved_cmdr
.mission
= block
[0];
274 saved_cmdr
.ship_x
= block
[1];
275 saved_cmdr
.ship_y
= block
[2];
277 saved_cmdr
.galaxy
.a
= block
[3];
278 saved_cmdr
.galaxy
.b
= block
[4];
279 saved_cmdr
.galaxy
.c
= block
[5];
280 saved_cmdr
.galaxy
.d
= block
[6];
281 saved_cmdr
.galaxy
.e
= block
[7];
282 saved_cmdr
.galaxy
.f
= block
[8];;
284 saved_cmdr
.credits
= block
[9] << 24;
285 saved_cmdr
.credits
+= block
[10] << 16;
286 saved_cmdr
.credits
+= block
[11] << 8;
287 saved_cmdr
.credits
+= block
[12];
289 saved_cmdr
.fuel
= block
[13];
291 saved_cmdr
.galaxy_number
= block
[15];
292 saved_cmdr
.front_laser
= block
[16];
293 saved_cmdr
.rear_laser
= block
[17];
294 saved_cmdr
.left_laser
= block
[18];
295 saved_cmdr
.right_laser
= block
[19];
297 saved_cmdr
.cargo_capacity
= block
[22] - 2;
299 for (i
= 0; i
< NO_OF_STOCK_ITEMS
; i
++)
300 saved_cmdr
.current_cargo
[i
] = block
[23+i
];
302 saved_cmdr
.ecm
= block
[40];
303 saved_cmdr
.fuel_scoop
= block
[41];
304 saved_cmdr
.energy_bomb
= block
[42];
305 saved_cmdr
.energy_unit
= block
[43];
306 saved_cmdr
.docking_computer
= block
[44];
307 saved_cmdr
.galactic_hyperdrive
= block
[45];
308 saved_cmdr
.escape_pod
= block
[46];
309 saved_cmdr
.missiles
= block
[51];
310 saved_cmdr
.legal_status
= block
[52];
312 for (i
= 0; i
< NO_OF_STOCK_ITEMS
; i
++)
313 saved_cmdr
.station_stock
[i
] = block
[53+i
];
315 saved_cmdr
.market_rnd
= block
[70];
317 saved_cmdr
.score
= block
[71];
318 saved_cmdr
.score
+= block
[72] << 8;
320 if (fclose (fp
) == EOF
)