]> icculus.org git repositories - divverent/nexuiz.git/blob - data/qcsrc/common/gamecommand.qc
added sv_cmd suggestmap.. admins wanna have fun too :P
[divverent/nexuiz.git] / data / qcsrc / common / gamecommand.qc
1 #define MAX_RPN_STACK 16
2 float rpn_db;
3 float rpn_error;
4 float rpn_sp;
5 string rpn_stack[MAX_RPN_STACK];
6 string rpn_pop() {
7         if(rpn_sp > 0) {
8                 --rpn_sp;
9                 return rpn_stack[rpn_sp];
10         } else {
11                 print("rpn: stack underflow\n");
12                 rpn_error = TRUE;
13                 return "";
14         }
15 }
16 void rpn_push(string s) {
17         if(rpn_sp < MAX_RPN_STACK) {
18                 rpn_stack[rpn_sp] = s;
19                 ++rpn_sp;
20         } else {
21                 print("rpn: stack overflow\n");
22                 rpn_error = TRUE;
23         }
24 }
25 string rpn_get() {
26         if(rpn_sp > 0) {
27                 return rpn_stack[rpn_sp - 1];
28         } else {
29                 print("rpn: empty stack\n");
30                 rpn_error = TRUE;
31                 return "";
32         }
33 }
34 void rpn_set(string s) {
35         if(rpn_sp > 0) {
36                 rpn_stack[rpn_sp - 1] = s;
37         } else {
38                 print("rpn: empty stack\n");
39                 rpn_error = TRUE;
40         }
41 }
42 float rpn_getf() { return stof(rpn_get()); }
43 float rpn_popf() { return stof(rpn_pop()); }
44 void rpn_pushf(float f) { return rpn_push(ftos(f)); }
45 void rpn_setf(float f) { return rpn_set(ftos(f)); }
46
47 float GameCommand_Generic(string command)
48 {
49         float argc;
50         float i, j, f, n;
51         string s, s2;
52         argc = tokenize_sane(command);
53         if(argv(0) == "help")
54         {
55                 print("  rpn EXPRESSION... - a RPN calculator.\n");
56                 print("    Operator description (x: string, s: set, f: float):\n");
57                 print("    x pop ----------------------------->     : removes the top\n");
58                 print("    x dup -----------------------------> x x : duplicates the top\n");
59                 print("    x x exch --------------------------> x x : swap the top two\n");
60                 print("    /cvarname load --------------------> x   : loads a cvar\n");
61                 print("    /cvarname x def ------------------->     : writes to a cvar\n");
62                 print("    f f add|sub|mul|div|mod|max|min ---> f   : adds/... two numbers\n");
63                 print("    f f eq|ne|gt|ge|lt|le -------------> f   : compares two numbers\n");
64                 print("    f neg|abs|sgn|rand|floor|ceil------> f   : negates/... a number\n");
65                 print("    f f f bound -----------------------> f   : bounds the middle number\n");
66                 print("    f1 f2 b when ----------------------> f   : f1 if b, f2 otherwise\n");
67                 print("    s s union|intersection|difference -> s   : set operations\n");
68                 print("    s shuffle -------------------------> s   : randomly arrange elements\n");
69                 print("    x dbpush -------------------------->     : pushes the top onto the database\n");
70                 print("    dbpop|dbget -----------------------> x   : removes/reads DB's top\n");
71                 print("    dblen|dbat ------------------------> f   : gets the DB's size/cursor pos\n");
72                 print("    dbclr ----------------------------->     : clear the DB\n");
73                 print("    s dbsave|dbload-------------------->     : save/load the DB to/from a file\n");
74                 print("    x dbins --------------------------->     : moves the top into the DB\n");
75                 print("    dbext|dbread ----------------------> x   : extract/get from the DB's cursor\n");
76                 print("    f dbmov|dbgoto -------------------->     : move or set the DB's cursor\n");
77                 print("    Set operations operate on 'such''strings'.\n");
78                 print("    Unknown tokens insert their cvar value.\n");
79                 print("  maplist add map\n");
80                 print("  maplist remove map\n");
81                 print("  maplist shuffle\n");
82                 print("  suggestmap map\n");
83                 return TRUE;
84         }
85         
86         if(argv(0) == "maplist")
87         {
88                 if(argv(1) == "add" && argc == 3)
89                 {
90                         f = fopen(strcat("maps/", argv(2), ".bsp"), FILE_READ);
91                         if(f != -1)
92                                 fclose(f);
93                         else {
94                                 print("maplist: ERROR: ", argv(2), " does not exist!\n");
95                                 return TRUE;
96                         }
97                         if(cvar_string("g_maplist") == "")
98                                 cvar_set("g_maplist", argv(2));
99                         else
100                                 cvar_set("g_maplist", strcat(argv(2), " ", cvar_string("g_maplist")));
101                         return TRUE;
102                 }
103                 else if(argv(1) == "remove" && argc == 3)
104                 {
105                         s = argv(2);
106                         n = tokenizebyseparator(cvar_string("g_maplist"), " ");
107                         s2 = "";
108                         for(i = 0; i < n; ++i)
109                                 if(argv(i) != s)
110                                 {
111                                         s2 = strcat(s2, " ", argv(i));
112                                 }
113                         s2 = substring(s2, 1, strlen(s2) - 1);
114                         cvar_set("g_maplist", s2);
115                         return TRUE;
116                 }
117                 else if(argv(1) == "shuffle" && argc == 2)
118                 {
119                         s = cvar_string("g_maplist");
120                         for(i = 1; i < (n = tokenizebyseparator(s, " ")); ++i)
121                         {
122                                 // swap i-th item at a random position from 0 to i
123                                 // proof for even distribution:
124                                 //   n = 1: obvious
125                                 //   n -> n+1:
126                                 //     item n+1 gets at any position with chance 1/(n+1)
127                                 //     all others will get their 1/n chance reduced by factor n/(n+1)
128                                 //     to be on place n+1, their chance will be 1/(n+1)
129                                 //     1/n * n/(n+1) = 1/(n+1)
130                                 //     q.e.d.
131                                 f = floor(random() * (i + 1)); // 0 to i
132                                 if(f == i)
133                                         continue; // no change
134
135                                 s2 = "";
136                                 for(j = 0; j < n; ++j)
137                                         s2 = strcat(s2, " ", argv((j == i) ? f : (j == f) ? i : j));
138                                 s = substring(s2, 1, strlen(s2) - 1);
139                         }
140                         cvar_set("g_maplist", s);
141                         return TRUE;
142                 }
143         }
144         else if(argv(0) == "rpn")
145         {
146                 if(!rpn_db)
147                 {
148                         rpn_db = db_create();
149                         db_put(rpn_db, "stack.pointer", "0");
150                         db_put(rpn_db, "stack.pos", "-1");
151                 }
152                 if(argc >= 2)
153                 {
154                         float rpnpos;
155                         string rpncmd;
156                         float f2, f3;
157                         rpn_sp = 0;
158                         rpn_error = FALSE;
159                         for(rpnpos = 1; rpnpos < argc; ++rpnpos)
160                         {
161                                 rpncmd = argv(rpnpos);
162                                 f = strlen(rpncmd);
163                                 if(rpncmd == "") {
164                                 } else if(stof(substring(rpncmd, 0, 1)) > 0) {
165                                         rpn_push(rpncmd);
166                                 } else if(substring(rpncmd, 0, 1) == "0") {
167                                         rpn_push(rpncmd);
168                                 } else if(f >= 2 && substring(rpncmd, 0, 1) == "+") {
169                                         rpn_push(rpncmd);
170                                 } else if(f >= 2 && substring(rpncmd, 0, 1) == "-") {
171                                         rpn_push(rpncmd);
172                                 } else if(f >= 2 && substring(rpncmd, 0, 1) == "/") {
173                                         rpn_push(substring(rpncmd, 1, strlen(rpncmd) - 1));
174                                 } else if(rpncmd == "clear") {
175                                         rpn_sp = 0;
176                                 } else if(rpncmd == "def" || rpncmd == "=") {
177                                         s = rpn_pop();
178                                         s2 = rpn_pop();
179 #ifdef MENUQC
180                                         registercvar(s2, "", 0);
181 #else
182                                         registercvar(s2, "");
183 #endif
184                                         if(!rpn_error) // don't change cvars if a stack error had happened!
185                                                 cvar_set(s2, s);
186                                 } else if(rpncmd == "defs" || rpncmd == "@") {
187                                         s = "";
188                                         i = rpn_popf();
189                                         j = (i == 0);
190                                         while(rpn_sp > 1 && (j || i > 0))
191                                         {
192                                                 s = strcat("/", rpn_pop(), " ", s);
193                                                 --i;
194                                         }
195                                         s2 = rpn_pop();
196 #ifdef MENUQC
197                                         registercvar(s2, "", 0);
198 #else
199                                         registercvar(s2, "");
200 #endif
201                                         if(!rpn_error) // don't change cvars if a stack error had happened!
202                                                 cvar_set(s2, s);
203                                 } else if(rpncmd == "load") {
204                                         rpn_set(cvar_string(rpn_get()));
205                                 } else if(rpncmd == "exch") {
206                                         s = rpn_pop();
207                                         s2 = rpn_get();
208                                         rpn_set(s);
209                                         rpn_push(s2);
210                                 } else if(rpncmd == "dup") {
211                                         rpn_push(rpn_get());
212                                 } else if(rpncmd == "pop") {
213                                         rpn_pop();
214                                 } else if(rpncmd == "add" || rpncmd == "+") {
215                                         f = rpn_popf();
216                                         rpn_setf(rpn_getf() + f);
217                                 } else if(rpncmd == "sub" || rpncmd == "-") {
218                                         f = rpn_popf();
219                                         rpn_setf(rpn_getf() - f);
220                                 } else if(rpncmd == "mul" || rpncmd == "*") {
221                                         f = rpn_popf();
222                                         rpn_setf(rpn_getf() * f);
223                                 } else if(rpncmd == "div" || rpncmd == "/") {
224                                         f = rpn_popf();
225                                         rpn_setf(rpn_getf() / f);
226                                 } else if(rpncmd == "mod" || rpncmd == "%") {
227                                         f = rpn_popf();
228                                         f2 = rpn_getf();
229                                         rpn_setf(f2 - f * floor(f2 / f));
230                                 } else if(rpncmd == "abs") {
231                                         rpn_setf(fabs(rpn_getf()));
232                                 } else if(rpncmd == "sgn") {
233                                         f = rpn_getf();
234                                         if(f < 0)
235                                                 rpn_set("-1");
236                                         else if(f > 0)
237                                                 rpn_set("1");
238                                         else
239                                                 rpn_set("0");
240                                 } else if(rpncmd == "neg" || rpncmd == "~") {
241                                         rpn_setf(-rpn_getf());
242                                 } else if(rpncmd == "floor" || rpncmd == "f") {
243                                         rpn_setf(floor(rpn_getf()));
244                                 } else if(rpncmd == "ceil" || rpncmd == "c") {
245                                         rpn_setf(ceil(rpn_getf()));
246                                 } else if(rpncmd == "max") {
247                                         f = rpn_popf();
248                                         f2 = rpn_getf();
249                                         rpn_setf(max(f2, f));
250                                 } else if(rpncmd == "min") {
251                                         f = rpn_popf();
252                                         f2 = rpn_getf();
253                                         rpn_setf(min(f2, f));
254                                 } else if(rpncmd == "bound") {
255                                         f = rpn_popf();
256                                         f2 = rpn_popf();
257                                         f3 = rpn_getf();
258                                         rpn_setf(bound(f3, f2, f));
259                                 } else if(rpncmd == "when") {
260                                         f = rpn_popf();
261                                         f2 = rpn_popf();
262                                         f3 = rpn_getf();
263                                         if(f)
264                                                 rpn_setf(f3);
265                                         else
266                                                 rpn_setf(f2);
267                                 } else if(rpncmd == ">" || rpncmd == "gt") {
268                                         f = rpn_popf();
269                                         rpn_setf(rpn_getf() > f);
270                                 } else if(rpncmd == "<" || rpncmd == "lt") {
271                                         f = rpn_popf();
272                                         rpn_setf(rpn_getf() < f);
273                                 } else if(rpncmd == "==" || rpncmd == "eq") {
274                                         f = rpn_popf();
275                                         rpn_setf(rpn_getf() == f);
276                                 } else if(rpncmd == ">=" || rpncmd == "ge") {
277                                         f = rpn_popf();
278                                         rpn_setf(rpn_getf() >= f);
279                                 } else if(rpncmd == "<=" || rpncmd == "le") {
280                                         f = rpn_popf();
281                                         rpn_setf(rpn_getf() <= f);
282                                 } else if(rpncmd == "!=" || rpncmd == "ne") {
283                                         f = rpn_popf();
284                                         rpn_setf(rpn_getf() != f);
285                                 } else if(rpncmd == "rand") {
286                                         rpn_setf(ceil(random() * rpn_getf()) - 1);
287                                 } else if(rpncmd == "dbpush") {
288                                         s = rpn_pop();
289                                         if(!rpn_error)
290                                         {
291                                                 i = stof(db_get(rpn_db, "stack.pointer"));
292                                                 db_put(rpn_db, "stack.pointer", ftos(i+1));
293                                                 db_put(rpn_db, strcat("stack.", ftos(i)), s);
294                                         }
295                                         if(!i)
296                                                 db_put(rpn_db, "stack.pos", "0");
297                                 } else if(rpncmd == "dbpop") {
298                                         i = stof(db_get(rpn_db, "stack.pointer"));
299                                         if(i)
300                                         {
301                                                 s = ftos(i-1);
302                                                 db_put(rpn_db, "stack.pointer", s);
303                                                 rpn_push(db_get(rpn_db, strcat("stack.", s)));
304                                                 j = stof(db_get(rpn_db, "stack.pos"));
305                                                 if(j >= i)
306                                                         db_put(rpn_db, "stack.pos", ftos(i-2));
307                                         } else {
308                                                 rpn_error = 1;
309                                                 print("rpn: database underflow\n");
310                                         }
311                                 } else if(rpncmd == "dbget") {
312                                         
313                                         i = stof(db_get(rpn_db, "stack.pointer"));
314                                         if(i)
315                                         {
316                                                 rpn_push(db_get(rpn_db, strcat("stack.", ftos(i-1))));
317                                         } else {
318                                                 rpn_error = 1;
319                                                 print("rpn: database empty\n");
320                                         }
321                                 } else if(rpncmd == "dblen") {
322                                         rpn_push(db_get(rpn_db, "stack.pointer"));
323                                 } else if(rpncmd == "dbclr") {
324                                         db_close(rpn_db);
325                                         rpn_db = db_create();
326                                         db_put(rpn_db, "stack.pointer", "0");
327                                         db_put(rpn_db, "stack.pos", "-1");
328                                 } else if(rpncmd == "dbsave") {
329                                         s = rpn_pop();
330                                         if(!rpn_error)
331                                                 db_save(rpn_db, s);
332                                 } else if(rpncmd == "dbload") {
333                                         s = rpn_pop();
334                                         if(!rpn_error)
335                                         {
336                                                 db_close(rpn_db);
337                                                 rpn_db = db_load(s);
338                                         }
339                                 } else if(rpncmd == "dbins") {
340                                         s = rpn_pop();
341                                         if(!rpn_error)
342                                                 //if(rpn_sp > 0)
343                                         {
344                                                 j = stof(db_get(rpn_db, "stack.pointer"));
345                                                 i = stof(db_get(rpn_db, "stack.pos"));
346                                                 
347                                                 if(i < 0)
348                                                 {
349                                                         i = 0;
350                                                         db_put(rpn_db, "stack.pos", "0");
351                                                 }
352                                                 
353                                                 db_put(rpn_db, "stack.pointer", ftos(j+1));
354                                                 for(--j; j >= i; --j)
355                                                 {
356                                                         db_put(rpn_db, strcat("stack.", ftos(j+1)),
357                                                                db_get(rpn_db, (strcat("stack.", ftos(j))))
358                                                                 );
359                                                 }
360                                                 db_put(rpn_db, strcat("stack.", ftos(i)), s);
361                                         }
362                                 } else if(rpncmd == "dbext") {
363                                         j = stof(db_get(rpn_db, "stack.pointer"));
364                                         i = stof(db_get(rpn_db, "stack.pos"));
365                                         if(!j)
366                                         {
367                                                 rpn_error = TRUE;
368                                                 print("rpn: empty database\n");
369                                         } else {
370                                                 --j;
371                                                 rpn_push(db_get(rpn_db, strcat("stack.", ftos(i))));
372                                                 db_put(rpn_db, "stack.pointer", ftos(j));
373                                                 if(i == j)
374                                                 {
375                                                         db_put(rpn_db, "stack.pos", ftos(j-1));
376                                                 } else {
377                                                         while(i < j)
378                                                         {
379                                                                 db_put(rpn_db, strcat("stack.", ftos(i)),
380                                                                        db_get(rpn_db, (strcat("stack.", ftos(i+1))))
381                                                                         );
382                                                                 ++i;
383                                                         }
384                                                 }
385                                         }
386                                 } else if(rpncmd == "dbread") {
387                                         s = db_get(rpn_db, "stack.pos");
388                                         if(stof(s) >= 0)
389                                         {
390                                                 rpn_push(db_get(rpn_db, strcat("stack.", s)));
391                                         } else {
392                                                 rpn_error = 1;
393                                                 print("rpn: empty database\n");
394                                         }
395                                 } else if(rpncmd == "dbat") {
396                                         rpn_push(db_get(rpn_db, "stack.pos"));
397                                 } else if(rpncmd == "dbmov") {
398                                         j = stof(db_get(rpn_db, "stack.pointer"));
399                                         i = stof(db_get(rpn_db, "stack.pos"));
400                                         i += rpn_popf();
401                                         if(!rpn_error)
402                                         {
403                                                 if(i < 0 || i >= j)
404                                                 {
405                                                         print("rpn: database cursor out of bounds\n");
406                                                         rpn_error = TRUE;
407                                                 }
408                                                 if(!rpn_error)
409                                                 {
410                                                         db_put(rpn_db, "stack.pos", ftos(i));
411                                                 }
412                                         }
413                                 } else if(rpncmd == "dbgoto") {
414                                         s = rpn_pop();
415                                         j = stof(db_get(rpn_db, "stack.pointer"));
416                                         if(!j)
417                                         {
418                                                 rpn_error = TRUE;
419                                                 print("rpn: empty database, cannot move cursor\n");
420                                         }
421                                         if(!rpn_error)
422                                         {
423                                                 if(s == "end")
424                                                         i = stof(db_get(rpn_db, "stack.pointer"))-1;
425                                                 else if(s == "beg")
426                                                         i = 0;
427                                                 else
428                                                         i = stof(s);
429                                                 
430                                                 j = stof(db_get(rpn_db, "stack.pointer"));
431                                                 if(i < 0 || i >= j)
432                                                 {
433                                                         print("rpn: database cursor destination out of bounds\n");
434                                                         rpn_error = TRUE;
435                                                 }
436                                                 if(!rpn_error)
437                                                 {
438                                                         db_put(rpn_db, "stack.pos", ftos(i));
439                                                 }
440                                         }
441                                 } else if(rpncmd == "union") {
442                                         // s s2 union
443                                         s2 = rpn_pop();
444                                         s = rpn_get();
445                                         f = tokenize_sane(s);
446                                         f2 = tokenize_sane(strcat(s, " ", s2));
447                                         // tokens 0..(f-1) represent s
448                                         // tokens f..f2 represent s2
449                                         // UNION: add all tokens to s that are in s2 but not in s
450                                         s = "";
451                                         for(i = 0; i < f; ++i)  
452                                                 s = strcat(s, " ", argv(i));
453                                         for(i = f; i < f2; ++i) {
454                                                 for(j = 0; j < f; ++j)
455                                                         if(argv(i) == argv(j))
456                                                                 goto skip_union;
457                                                 s = strcat(s, " ", argv(i));
458 :skip_union
459                                         }
460                                         if(substring(s, 0, 1) == " ")
461                                                 s = substring(s, 1, 99999);
462                                         rpn_set(s);
463                                         tokenize_sane(command);
464                                 } else if(rpncmd == "intersection") {
465                                         // s s2 intersection
466                                         s2 = rpn_pop();
467                                         s = rpn_get();
468                                         f = tokenize_sane(s);
469                                         f2 = tokenize_sane(strcat(s, " ", s2));
470                                         // tokens 0..(f-1) represent s
471                                         // tokens f..f2 represent s2
472                                         // INTERSECTION: keep only the tokens from s that are also in s2
473                                         s = "";
474                                         for(i = 0; i < f; ++i) {
475                                                 for(j = f; j < f2; ++j)
476                                                         if(argv(i) == argv(j))
477                                                         {
478                                                                 s = strcat(s, " ", argv(i));
479                                                                 break;
480                                                         }
481                                         }
482                                         if(substring(s, 0, 1) == " ")
483                                                 s = substring(s, 1, 99999);
484                                         rpn_set(s);
485                                         tokenize_sane(command);
486                                 } else if(rpncmd == "difference") {
487                                         // s s2 difference
488                                         s2 = rpn_pop();
489                                         s = rpn_get();
490                                         f = tokenize_sane(s);
491                                         f2 = tokenize_sane(strcat(s, " ", s2));
492                                         // tokens 0..(f-1) represent s
493                                         // tokens f..f2 represent s2
494                                         // DIFFERENCE: keep only the tokens from s that are not in s2
495                                         s = "";
496                                         for(i = 0; i < f; ++i) {
497                                                 for(j = f; j < f2; ++j)
498                                                         if(argv(i) == argv(j))
499                                                                 goto skip_difference;
500                                                 s = strcat(s, " ", argv(i));
501 :skip_difference
502                                         }
503                                         if(substring(s, 0, 1) == " ")
504                                                 s = substring(s, 1, 99999);
505                                         rpn_set(s);
506                                         tokenize_sane(command);
507                                 } else if(rpncmd == "shuffle") {
508                                         // s shuffle
509                                         s = rpn_get();
510                                         f = tokenize_sane(s);
511
512                                         for(i = 0; i < f - 1; ++i) {
513                                                 // move a random item from i..f-1 to position i
514                                                 s = "";
515                                                 f2 = floor(random() * (f - i) + i);
516                                                 for(j = 0; j < i; ++j)
517                                                         s = strcat(s, " ", argv(j));
518                                                 s = strcat(s, " ", argv(f2));
519                                                 for(j = i; j < f; ++j)
520                                                         if(j != f2)
521                                                                 s = strcat(s, " ", argv(j));
522                                                 f = tokenize_sane(s);
523                                         }
524
525                                         if(substring(s, 0, 1) == " ")
526                                                 s = substring(s, 1, 99999);
527                                         rpn_set(s);
528                                         tokenize_sane(command);
529                                         } else if(rpncmd == "fexists_assert") {
530                                         s = rpn_pop();
531                                         if(!rpn_error)
532                                         {
533                                                 f = fopen(s, FILE_READ);
534                                                 if(f != -1)
535                                                         fclose(f);
536                                                 else {
537                                                         print("rpn: ERROR: ", s, " does not exist!\n");
538                                                         rpn_error = TRUE;
539                                                 }
540                                         }
541                                 } else {
542                                         rpn_push(cvar_string(rpncmd));
543                                 }
544                                 if(rpn_error)
545                                         break;
546                         }
547                         while(rpn_sp > 0)
548                         {
549                                 s = rpn_pop();
550                                 print("rpn: still on stack: ", s, "\n");
551                         }
552                         return TRUE;
553                 }
554 #ifdef MENUQC
555         } else if(argv(0) == "cp") {
556                 if(argc >= 2)
557                 {
558                         s = argv(1);
559                         for(i = 2; i < argc; ++i)
560                                 s = strcat(s, " ", argv(i));
561                         centerprint(unescape(s));
562                 }
563                 return TRUE;
564 #endif
565         } else if(argv(0) == "suggestmap") {
566                 sprint(self, strcat(MapVote_Suggest(argv(1)), "\n"));
567         }
568
569         return FALSE;
570 }