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Diffstat (limited to 'apps/plugins/sdl/progs/quake/sv_phys.c')
-rw-r--r-- | apps/plugins/sdl/progs/quake/sv_phys.c | 1617 |
1 files changed, 1617 insertions, 0 deletions
diff --git a/apps/plugins/sdl/progs/quake/sv_phys.c b/apps/plugins/sdl/progs/quake/sv_phys.c new file mode 100644 index 0000000000..e13c0e443d --- /dev/null +++ b/apps/plugins/sdl/progs/quake/sv_phys.c | |||
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1 | /* | ||
2 | Copyright (C) 1996-1997 Id Software, Inc. | ||
3 | |||
4 | This program is free software; you can redistribute it and/or | ||
5 | modify it under the terms of the GNU General Public License | ||
6 | as published by the Free Software Foundation; either version 2 | ||
7 | of the License, or (at your option) any later version. | ||
8 | |||
9 | This program is distributed in the hope that it will be useful, | ||
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
12 | |||
13 | See the GNU General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with this program; if not, write to the Free Software | ||
17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
18 | |||
19 | */ | ||
20 | // sv_phys.c | ||
21 | |||
22 | #include "quakedef.h" | ||
23 | |||
24 | /* | ||
25 | |||
26 | |||
27 | pushmove objects do not obey gravity, and do not interact with each other or trigger fields, but block normal movement and push normal objects when they move. | ||
28 | |||
29 | onground is set for toss objects when they come to a complete rest. it is set for steping or walking objects | ||
30 | |||
31 | doors, plats, etc are SOLID_BSP, and MOVETYPE_PUSH | ||
32 | bonus items are SOLID_TRIGGER touch, and MOVETYPE_TOSS | ||
33 | corpses are SOLID_NOT and MOVETYPE_TOSS | ||
34 | crates are SOLID_BBOX and MOVETYPE_TOSS | ||
35 | walking monsters are SOLID_SLIDEBOX and MOVETYPE_STEP | ||
36 | flying/floating monsters are SOLID_SLIDEBOX and MOVETYPE_FLY | ||
37 | |||
38 | solid_edge items only clip against bsp models. | ||
39 | |||
40 | */ | ||
41 | |||
42 | cvar_t sv_friction = {"sv_friction","4",false,true}; | ||
43 | cvar_t sv_stopspeed = {"sv_stopspeed","100"}; | ||
44 | cvar_t sv_gravity = {"sv_gravity","800",false,true}; | ||
45 | cvar_t sv_maxvelocity = {"sv_maxvelocity","2000"}; | ||
46 | cvar_t sv_nostep = {"sv_nostep","0"}; | ||
47 | |||
48 | #ifdef QUAKE2 | ||
49 | static vec3_t vec_origin = {0.0, 0.0, 0.0}; | ||
50 | #endif | ||
51 | |||
52 | #define MOVE_EPSILON 0.01 | ||
53 | |||
54 | void SV_Physics_Toss (edict_t *ent); | ||
55 | |||
56 | /* | ||
57 | ================ | ||
58 | SV_CheckAllEnts | ||
59 | ================ | ||
60 | */ | ||
61 | void SV_CheckAllEnts (void) | ||
62 | { | ||
63 | int e; | ||
64 | edict_t *check; | ||
65 | |||
66 | // see if any solid entities are inside the final position | ||
67 | check = NEXT_EDICT(sv.edicts); | ||
68 | for (e=1 ; e<sv.num_edicts ; e++, check = NEXT_EDICT(check)) | ||
69 | { | ||
70 | if (check->free) | ||
71 | continue; | ||
72 | if (check->v.movetype == MOVETYPE_PUSH | ||
73 | || check->v.movetype == MOVETYPE_NONE | ||
74 | #ifdef QUAKE2 | ||
75 | || check->v.movetype == MOVETYPE_FOLLOW | ||
76 | #endif | ||
77 | || check->v.movetype == MOVETYPE_NOCLIP) | ||
78 | continue; | ||
79 | |||
80 | if (SV_TestEntityPosition (check)) | ||
81 | Con_Printf ("entity in invalid position\n"); | ||
82 | } | ||
83 | } | ||
84 | |||
85 | /* | ||
86 | ================ | ||
87 | SV_CheckVelocity | ||
88 | ================ | ||
89 | */ | ||
90 | void SV_CheckVelocity (edict_t *ent) | ||
91 | { | ||
92 | int i; | ||
93 | |||
94 | // | ||
95 | // bound velocity | ||
96 | // | ||
97 | for (i=0 ; i<3 ; i++) | ||
98 | { | ||
99 | if (IS_NAN(ent->v.velocity[i])) | ||
100 | { | ||
101 | Con_Printf ("Got a NaN velocity on %s\n", pr_strings + ent->v.classname); | ||
102 | ent->v.velocity[i] = 0; | ||
103 | } | ||
104 | if (IS_NAN(ent->v.origin[i])) | ||
105 | { | ||
106 | Con_Printf ("Got a NaN origin on %s\n", pr_strings + ent->v.classname); | ||
107 | ent->v.origin[i] = 0; | ||
108 | } | ||
109 | if (ent->v.velocity[i] > sv_maxvelocity.value) | ||
110 | ent->v.velocity[i] = sv_maxvelocity.value; | ||
111 | else if (ent->v.velocity[i] < -sv_maxvelocity.value) | ||
112 | ent->v.velocity[i] = -sv_maxvelocity.value; | ||
113 | } | ||
114 | } | ||
115 | |||
116 | /* | ||
117 | ============= | ||
118 | SV_RunThink | ||
119 | |||
120 | Runs thinking code if time. There is some play in the exact time the think | ||
121 | function will be called, because it is called before any movement is done | ||
122 | in a frame. Not used for pushmove objects, because they must be exact. | ||
123 | Returns false if the entity removed itself. | ||
124 | ============= | ||
125 | */ | ||
126 | qboolean SV_RunThink (edict_t *ent) | ||
127 | { | ||
128 | float thinktime; | ||
129 | |||
130 | thinktime = ent->v.nextthink; | ||
131 | if (thinktime <= 0 || thinktime > sv.time + host_frametime) | ||
132 | return true; | ||
133 | |||
134 | if (thinktime < sv.time) | ||
135 | thinktime = sv.time; // don't let things stay in the past. | ||
136 | // it is possible to start that way | ||
137 | // by a trigger with a local time. | ||
138 | ent->v.nextthink = 0; | ||
139 | pr_global_struct->time = thinktime; | ||
140 | pr_global_struct->self = EDICT_TO_PROG(ent); | ||
141 | pr_global_struct->other = EDICT_TO_PROG(sv.edicts); | ||
142 | PR_ExecuteProgram (ent->v.think); | ||
143 | return !ent->free; | ||
144 | } | ||
145 | |||
146 | /* | ||
147 | ================== | ||
148 | SV_Impact | ||
149 | |||
150 | Two entities have touched, so run their touch functions | ||
151 | ================== | ||
152 | */ | ||
153 | void SV_Impact (edict_t *e1, edict_t *e2) | ||
154 | { | ||
155 | int old_self, old_other; | ||
156 | |||
157 | old_self = pr_global_struct->self; | ||
158 | old_other = pr_global_struct->other; | ||
159 | |||
160 | pr_global_struct->time = sv.time; | ||
161 | if (e1->v.touch && e1->v.solid != SOLID_NOT) | ||
162 | { | ||
163 | pr_global_struct->self = EDICT_TO_PROG(e1); | ||
164 | pr_global_struct->other = EDICT_TO_PROG(e2); | ||
165 | PR_ExecuteProgram (e1->v.touch); | ||
166 | } | ||
167 | |||
168 | if (e2->v.touch && e2->v.solid != SOLID_NOT) | ||
169 | { | ||
170 | pr_global_struct->self = EDICT_TO_PROG(e2); | ||
171 | pr_global_struct->other = EDICT_TO_PROG(e1); | ||
172 | PR_ExecuteProgram (e2->v.touch); | ||
173 | } | ||
174 | |||
175 | pr_global_struct->self = old_self; | ||
176 | pr_global_struct->other = old_other; | ||
177 | } | ||
178 | |||
179 | |||
180 | /* | ||
181 | ================== | ||
182 | ClipVelocity | ||
183 | |||
184 | Slide off of the impacting object | ||
185 | returns the blocked flags (1 = floor, 2 = step / wall) | ||
186 | ================== | ||
187 | */ | ||
188 | #define STOP_EPSILON 0.1 | ||
189 | |||
190 | int ClipVelocity (vec3_t in, vec3_t normal, vec3_t out, float overbounce) | ||
191 | { | ||
192 | float backoff; | ||
193 | float change; | ||
194 | int i, blocked; | ||
195 | |||
196 | blocked = 0; | ||
197 | if (normal[2] > 0) | ||
198 | blocked |= 1; // floor | ||
199 | if (!normal[2]) | ||
200 | blocked |= 2; // step | ||
201 | |||
202 | backoff = DotProduct (in, normal) * overbounce; | ||
203 | |||
204 | for (i=0 ; i<3 ; i++) | ||
205 | { | ||
206 | change = normal[i]*backoff; | ||
207 | out[i] = in[i] - change; | ||
208 | if (out[i] > -STOP_EPSILON && out[i] < STOP_EPSILON) | ||
209 | out[i] = 0; | ||
210 | } | ||
211 | |||
212 | return blocked; | ||
213 | } | ||
214 | |||
215 | |||
216 | /* | ||
217 | ============ | ||
218 | SV_FlyMove | ||
219 | |||
220 | The basic solid body movement clip that slides along multiple planes | ||
221 | Returns the clipflags if the velocity was modified (hit something solid) | ||
222 | 1 = floor | ||
223 | 2 = wall / step | ||
224 | 4 = dead stop | ||
225 | If steptrace is not NULL, the trace of any vertical wall hit will be stored | ||
226 | ============ | ||
227 | */ | ||
228 | #define MAX_CLIP_PLANES 5 | ||
229 | int SV_FlyMove (edict_t *ent, float time, trace_t *steptrace) | ||
230 | { | ||
231 | int bumpcount, numbumps; | ||
232 | vec3_t dir; | ||
233 | float d; | ||
234 | int numplanes; | ||
235 | vec3_t planes[MAX_CLIP_PLANES]; | ||
236 | vec3_t primal_velocity, original_velocity, new_velocity; | ||
237 | int i, j; | ||
238 | trace_t trace; | ||
239 | vec3_t end; | ||
240 | float time_left; | ||
241 | int blocked; | ||
242 | |||
243 | numbumps = 4; | ||
244 | |||
245 | blocked = 0; | ||
246 | VectorCopy (ent->v.velocity, original_velocity); | ||
247 | VectorCopy (ent->v.velocity, primal_velocity); | ||
248 | numplanes = 0; | ||
249 | |||
250 | time_left = time; | ||
251 | |||
252 | for (bumpcount=0 ; bumpcount<numbumps ; bumpcount++) | ||
253 | { | ||
254 | if (!ent->v.velocity[0] && !ent->v.velocity[1] && !ent->v.velocity[2]) | ||
255 | break; | ||
256 | |||
257 | for (i=0 ; i<3 ; i++) | ||
258 | end[i] = ent->v.origin[i] + time_left * ent->v.velocity[i]; | ||
259 | |||
260 | trace = SV_Move (ent->v.origin, ent->v.mins, ent->v.maxs, end, false, ent); | ||
261 | |||
262 | if (trace.allsolid) | ||
263 | { // entity is trapped in another solid | ||
264 | VectorCopy (vec3_origin, ent->v.velocity); | ||
265 | return 3; | ||
266 | } | ||
267 | |||
268 | if (trace.fraction > 0) | ||
269 | { // actually covered some distance | ||
270 | VectorCopy (trace.endpos, ent->v.origin); | ||
271 | VectorCopy (ent->v.velocity, original_velocity); | ||
272 | numplanes = 0; | ||
273 | } | ||
274 | |||
275 | if (trace.fraction == 1) | ||
276 | break; // moved the entire distance | ||
277 | |||
278 | if (!trace.ent) | ||
279 | Sys_Error ("SV_FlyMove: !trace.ent"); | ||
280 | |||
281 | if (trace.plane.normal[2] > 0.7) | ||
282 | { | ||
283 | blocked |= 1; // floor | ||
284 | if (trace.ent->v.solid == SOLID_BSP) | ||
285 | { | ||
286 | ent->v.flags = (int)ent->v.flags | FL_ONGROUND; | ||
287 | ent->v.groundentity = EDICT_TO_PROG(trace.ent); | ||
288 | } | ||
289 | } | ||
290 | if (!trace.plane.normal[2]) | ||
291 | { | ||
292 | blocked |= 2; // step | ||
293 | if (steptrace) | ||
294 | *steptrace = trace; // save for player extrafriction | ||
295 | } | ||
296 | |||
297 | // | ||
298 | // run the impact function | ||
299 | // | ||
300 | SV_Impact (ent, trace.ent); | ||
301 | if (ent->free) | ||
302 | break; // removed by the impact function | ||
303 | |||
304 | |||
305 | time_left -= time_left * trace.fraction; | ||
306 | |||
307 | // cliped to another plane | ||
308 | if (numplanes >= MAX_CLIP_PLANES) | ||
309 | { // this shouldn't really happen | ||
310 | VectorCopy (vec3_origin, ent->v.velocity); | ||
311 | return 3; | ||
312 | } | ||
313 | |||
314 | VectorCopy (trace.plane.normal, planes[numplanes]); | ||
315 | numplanes++; | ||
316 | |||
317 | // | ||
318 | // modify original_velocity so it parallels all of the clip planes | ||
319 | // | ||
320 | for (i=0 ; i<numplanes ; i++) | ||
321 | { | ||
322 | ClipVelocity (original_velocity, planes[i], new_velocity, 1); | ||
323 | for (j=0 ; j<numplanes ; j++) | ||
324 | if (j != i) | ||
325 | { | ||
326 | if (DotProduct (new_velocity, planes[j]) < 0) | ||
327 | break; // not ok | ||
328 | } | ||
329 | if (j == numplanes) | ||
330 | break; | ||
331 | } | ||
332 | |||
333 | if (i != numplanes) | ||
334 | { // go along this plane | ||
335 | VectorCopy (new_velocity, ent->v.velocity); | ||
336 | } | ||
337 | else | ||
338 | { // go along the crease | ||
339 | if (numplanes != 2) | ||
340 | { | ||
341 | // Con_Printf ("clip velocity, numplanes == %i\n",numplanes); | ||
342 | VectorCopy (vec3_origin, ent->v.velocity); | ||
343 | return 7; | ||
344 | } | ||
345 | CrossProduct (planes[0], planes[1], dir); | ||
346 | d = DotProduct (dir, ent->v.velocity); | ||
347 | VectorScale (dir, d, ent->v.velocity); | ||
348 | } | ||
349 | |||
350 | // | ||
351 | // if original velocity is against the original velocity, stop dead | ||
352 | // to avoid tiny occilations in sloping corners | ||
353 | // | ||
354 | if (DotProduct (ent->v.velocity, primal_velocity) <= 0) | ||
355 | { | ||
356 | VectorCopy (vec3_origin, ent->v.velocity); | ||
357 | return blocked; | ||
358 | } | ||
359 | } | ||
360 | |||
361 | return blocked; | ||
362 | } | ||
363 | |||
364 | |||
365 | /* | ||
366 | ============ | ||
367 | SV_AddGravity | ||
368 | |||
369 | ============ | ||
370 | */ | ||
371 | void SV_AddGravity (edict_t *ent) | ||
372 | { | ||
373 | float ent_gravity; | ||
374 | |||
375 | #ifdef QUAKE2 | ||
376 | if (ent->v.gravity) | ||
377 | ent_gravity = ent->v.gravity; | ||
378 | else | ||
379 | ent_gravity = 1.0; | ||
380 | #else | ||
381 | eval_t *val; | ||
382 | |||
383 | val = GetEdictFieldValue(ent, "gravity"); | ||
384 | if (val && val->_float) | ||
385 | ent_gravity = val->_float; | ||
386 | else | ||
387 | ent_gravity = 1.0; | ||
388 | #endif | ||
389 | ent->v.velocity[2] -= ent_gravity * sv_gravity.value * host_frametime; | ||
390 | } | ||
391 | |||
392 | |||
393 | /* | ||
394 | =============================================================================== | ||
395 | |||
396 | PUSHMOVE | ||
397 | |||
398 | =============================================================================== | ||
399 | */ | ||
400 | |||
401 | /* | ||
402 | ============ | ||
403 | SV_PushEntity | ||
404 | |||
405 | Does not change the entities velocity at all | ||
406 | ============ | ||
407 | */ | ||
408 | trace_t SV_PushEntity (edict_t *ent, vec3_t push) | ||
409 | { | ||
410 | trace_t trace; | ||
411 | vec3_t end; | ||
412 | |||
413 | VectorAdd (ent->v.origin, push, end); | ||
414 | |||
415 | if (ent->v.movetype == MOVETYPE_FLYMISSILE) | ||
416 | trace = SV_Move (ent->v.origin, ent->v.mins, ent->v.maxs, end, MOVE_MISSILE, ent); | ||
417 | else if (ent->v.solid == SOLID_TRIGGER || ent->v.solid == SOLID_NOT) | ||
418 | // only clip against bmodels | ||
419 | trace = SV_Move (ent->v.origin, ent->v.mins, ent->v.maxs, end, MOVE_NOMONSTERS, ent); | ||
420 | else | ||
421 | trace = SV_Move (ent->v.origin, ent->v.mins, ent->v.maxs, end, MOVE_NORMAL, ent); | ||
422 | |||
423 | VectorCopy (trace.endpos, ent->v.origin); | ||
424 | SV_LinkEdict (ent, true); | ||
425 | |||
426 | if (trace.ent) | ||
427 | SV_Impact (ent, trace.ent); | ||
428 | |||
429 | return trace; | ||
430 | } | ||
431 | |||
432 | |||
433 | /* | ||
434 | ============ | ||
435 | SV_PushMove | ||
436 | |||
437 | ============ | ||
438 | */ | ||
439 | void SV_PushMove (edict_t *pusher, float movetime) | ||
440 | { | ||
441 | int i, e; | ||
442 | edict_t *check, *block; | ||
443 | vec3_t mins, maxs, move; | ||
444 | vec3_t entorig, pushorig; | ||
445 | int num_moved; | ||
446 | edict_t *moved_edict[MAX_EDICTS]; | ||
447 | vec3_t moved_from[MAX_EDICTS]; | ||
448 | |||
449 | if (!pusher->v.velocity[0] && !pusher->v.velocity[1] && !pusher->v.velocity[2]) | ||
450 | { | ||
451 | pusher->v.ltime += movetime; | ||
452 | return; | ||
453 | } | ||
454 | |||
455 | for (i=0 ; i<3 ; i++) | ||
456 | { | ||
457 | move[i] = pusher->v.velocity[i] * movetime; | ||
458 | mins[i] = pusher->v.absmin[i] + move[i]; | ||
459 | maxs[i] = pusher->v.absmax[i] + move[i]; | ||
460 | } | ||
461 | |||
462 | VectorCopy (pusher->v.origin, pushorig); | ||
463 | |||
464 | // move the pusher to it's final position | ||
465 | |||
466 | VectorAdd (pusher->v.origin, move, pusher->v.origin); | ||
467 | pusher->v.ltime += movetime; | ||
468 | SV_LinkEdict (pusher, false); | ||
469 | |||
470 | |||
471 | // see if any solid entities are inside the final position | ||
472 | num_moved = 0; | ||
473 | check = NEXT_EDICT(sv.edicts); | ||
474 | for (e=1 ; e<sv.num_edicts ; e++, check = NEXT_EDICT(check)) | ||
475 | { | ||
476 | if (check->free) | ||
477 | continue; | ||
478 | if (check->v.movetype == MOVETYPE_PUSH | ||
479 | || check->v.movetype == MOVETYPE_NONE | ||
480 | #ifdef QUAKE2 | ||
481 | || check->v.movetype == MOVETYPE_FOLLOW | ||
482 | #endif | ||
483 | || check->v.movetype == MOVETYPE_NOCLIP) | ||
484 | continue; | ||
485 | |||
486 | // if the entity is standing on the pusher, it will definately be moved | ||
487 | if ( ! ( ((int)check->v.flags & FL_ONGROUND) | ||
488 | && PROG_TO_EDICT(check->v.groundentity) == pusher) ) | ||
489 | { | ||
490 | if ( check->v.absmin[0] >= maxs[0] | ||
491 | || check->v.absmin[1] >= maxs[1] | ||
492 | || check->v.absmin[2] >= maxs[2] | ||
493 | || check->v.absmax[0] <= mins[0] | ||
494 | || check->v.absmax[1] <= mins[1] | ||
495 | || check->v.absmax[2] <= mins[2] ) | ||
496 | continue; | ||
497 | |||
498 | // see if the ent's bbox is inside the pusher's final position | ||
499 | if (!SV_TestEntityPosition (check)) | ||
500 | continue; | ||
501 | } | ||
502 | |||
503 | // remove the onground flag for non-players | ||
504 | if (check->v.movetype != MOVETYPE_WALK) | ||
505 | check->v.flags = (int)check->v.flags & ~FL_ONGROUND; | ||
506 | |||
507 | VectorCopy (check->v.origin, entorig); | ||
508 | VectorCopy (check->v.origin, moved_from[num_moved]); | ||
509 | moved_edict[num_moved] = check; | ||
510 | num_moved++; | ||
511 | |||
512 | // try moving the contacted entity | ||
513 | pusher->v.solid = SOLID_NOT; | ||
514 | SV_PushEntity (check, move); | ||
515 | pusher->v.solid = SOLID_BSP; | ||
516 | |||
517 | // if it is still inside the pusher, block | ||
518 | block = SV_TestEntityPosition (check); | ||
519 | if (block) | ||
520 | { // fail the move | ||
521 | if (check->v.mins[0] == check->v.maxs[0]) | ||
522 | continue; | ||
523 | if (check->v.solid == SOLID_NOT || check->v.solid == SOLID_TRIGGER) | ||
524 | { // corpse | ||
525 | check->v.mins[0] = check->v.mins[1] = 0; | ||
526 | VectorCopy (check->v.mins, check->v.maxs); | ||
527 | continue; | ||
528 | } | ||
529 | |||
530 | VectorCopy (entorig, check->v.origin); | ||
531 | SV_LinkEdict (check, true); | ||
532 | |||
533 | VectorCopy (pushorig, pusher->v.origin); | ||
534 | SV_LinkEdict (pusher, false); | ||
535 | pusher->v.ltime -= movetime; | ||
536 | |||
537 | // if the pusher has a "blocked" function, call it | ||
538 | // otherwise, just stay in place until the obstacle is gone | ||
539 | if (pusher->v.blocked) | ||
540 | { | ||
541 | pr_global_struct->self = EDICT_TO_PROG(pusher); | ||
542 | pr_global_struct->other = EDICT_TO_PROG(check); | ||
543 | PR_ExecuteProgram (pusher->v.blocked); | ||
544 | } | ||
545 | |||
546 | // move back any entities we already moved | ||
547 | for (i=0 ; i<num_moved ; i++) | ||
548 | { | ||
549 | VectorCopy (moved_from[i], moved_edict[i]->v.origin); | ||
550 | SV_LinkEdict (moved_edict[i], false); | ||
551 | } | ||
552 | return; | ||
553 | } | ||
554 | } | ||
555 | |||
556 | |||
557 | } | ||
558 | |||
559 | #ifdef QUAKE2 | ||
560 | /* | ||
561 | ============ | ||
562 | SV_PushRotate | ||
563 | |||
564 | ============ | ||
565 | */ | ||
566 | void SV_PushRotate (edict_t *pusher, float movetime) | ||
567 | { | ||
568 | int i, e; | ||
569 | edict_t *check, *block; | ||
570 | vec3_t move, a, amove; | ||
571 | vec3_t entorig, pushorig; | ||
572 | int num_moved; | ||
573 | edict_t *moved_edict[MAX_EDICTS]; | ||
574 | vec3_t moved_from[MAX_EDICTS]; | ||
575 | vec3_t org, org2; | ||
576 | vec3_t forward, right, up; | ||
577 | |||
578 | if (!pusher->v.avelocity[0] && !pusher->v.avelocity[1] && !pusher->v.avelocity[2]) | ||
579 | { | ||
580 | pusher->v.ltime += movetime; | ||
581 | return; | ||
582 | } | ||
583 | |||
584 | for (i=0 ; i<3 ; i++) | ||
585 | amove[i] = pusher->v.avelocity[i] * movetime; | ||
586 | |||
587 | VectorSubtract (vec3_origin, amove, a); | ||
588 | AngleVectors (a, forward, right, up); | ||
589 | |||
590 | VectorCopy (pusher->v.angles, pushorig); | ||
591 | |||
592 | // move the pusher to it's final position | ||
593 | |||
594 | VectorAdd (pusher->v.angles, amove, pusher->v.angles); | ||
595 | pusher->v.ltime += movetime; | ||
596 | SV_LinkEdict (pusher, false); | ||
597 | |||
598 | |||
599 | // see if any solid entities are inside the final position | ||
600 | num_moved = 0; | ||
601 | check = NEXT_EDICT(sv.edicts); | ||
602 | for (e=1 ; e<sv.num_edicts ; e++, check = NEXT_EDICT(check)) | ||
603 | { | ||
604 | if (check->free) | ||
605 | continue; | ||
606 | if (check->v.movetype == MOVETYPE_PUSH | ||
607 | || check->v.movetype == MOVETYPE_NONE | ||
608 | || check->v.movetype == MOVETYPE_FOLLOW | ||
609 | || check->v.movetype == MOVETYPE_NOCLIP) | ||
610 | continue; | ||
611 | |||
612 | // if the entity is standing on the pusher, it will definately be moved | ||
613 | if ( ! ( ((int)check->v.flags & FL_ONGROUND) | ||
614 | && PROG_TO_EDICT(check->v.groundentity) == pusher) ) | ||
615 | { | ||
616 | if ( check->v.absmin[0] >= pusher->v.absmax[0] | ||
617 | || check->v.absmin[1] >= pusher->v.absmax[1] | ||
618 | || check->v.absmin[2] >= pusher->v.absmax[2] | ||
619 | || check->v.absmax[0] <= pusher->v.absmin[0] | ||
620 | || check->v.absmax[1] <= pusher->v.absmin[1] | ||
621 | || check->v.absmax[2] <= pusher->v.absmin[2] ) | ||
622 | continue; | ||
623 | |||
624 | // see if the ent's bbox is inside the pusher's final position | ||
625 | if (!SV_TestEntityPosition (check)) | ||
626 | continue; | ||
627 | } | ||
628 | |||
629 | // remove the onground flag for non-players | ||
630 | if (check->v.movetype != MOVETYPE_WALK) | ||
631 | check->v.flags = (int)check->v.flags & ~FL_ONGROUND; | ||
632 | |||
633 | VectorCopy (check->v.origin, entorig); | ||
634 | VectorCopy (check->v.origin, moved_from[num_moved]); | ||
635 | moved_edict[num_moved] = check; | ||
636 | num_moved++; | ||
637 | |||
638 | // calculate destination position | ||
639 | VectorSubtract (check->v.origin, pusher->v.origin, org); | ||
640 | org2[0] = DotProduct (org, forward); | ||
641 | org2[1] = -DotProduct (org, right); | ||
642 | org2[2] = DotProduct (org, up); | ||
643 | VectorSubtract (org2, org, move); | ||
644 | |||
645 | // try moving the contacted entity | ||
646 | pusher->v.solid = SOLID_NOT; | ||
647 | SV_PushEntity (check, move); | ||
648 | pusher->v.solid = SOLID_BSP; | ||
649 | |||
650 | // if it is still inside the pusher, block | ||
651 | block = SV_TestEntityPosition (check); | ||
652 | if (block) | ||
653 | { // fail the move | ||
654 | if (check->v.mins[0] == check->v.maxs[0]) | ||
655 | continue; | ||
656 | if (check->v.solid == SOLID_NOT || check->v.solid == SOLID_TRIGGER) | ||
657 | { // corpse | ||
658 | check->v.mins[0] = check->v.mins[1] = 0; | ||
659 | VectorCopy (check->v.mins, check->v.maxs); | ||
660 | continue; | ||
661 | } | ||
662 | |||
663 | VectorCopy (entorig, check->v.origin); | ||
664 | SV_LinkEdict (check, true); | ||
665 | |||
666 | VectorCopy (pushorig, pusher->v.angles); | ||
667 | SV_LinkEdict (pusher, false); | ||
668 | pusher->v.ltime -= movetime; | ||
669 | |||
670 | // if the pusher has a "blocked" function, call it | ||
671 | // otherwise, just stay in place until the obstacle is gone | ||
672 | if (pusher->v.blocked) | ||
673 | { | ||
674 | pr_global_struct->self = EDICT_TO_PROG(pusher); | ||
675 | pr_global_struct->other = EDICT_TO_PROG(check); | ||
676 | PR_ExecuteProgram (pusher->v.blocked); | ||
677 | } | ||
678 | |||
679 | // move back any entities we already moved | ||
680 | for (i=0 ; i<num_moved ; i++) | ||
681 | { | ||
682 | VectorCopy (moved_from[i], moved_edict[i]->v.origin); | ||
683 | VectorSubtract (moved_edict[i]->v.angles, amove, moved_edict[i]->v.angles); | ||
684 | SV_LinkEdict (moved_edict[i], false); | ||
685 | } | ||
686 | return; | ||
687 | } | ||
688 | else | ||
689 | { | ||
690 | VectorAdd (check->v.angles, amove, check->v.angles); | ||
691 | } | ||
692 | } | ||
693 | |||
694 | |||
695 | } | ||
696 | #endif | ||
697 | |||
698 | /* | ||
699 | ================ | ||
700 | SV_Physics_Pusher | ||
701 | |||
702 | ================ | ||
703 | */ | ||
704 | void SV_Physics_Pusher (edict_t *ent) | ||
705 | { | ||
706 | float thinktime; | ||
707 | float oldltime; | ||
708 | float movetime; | ||
709 | |||
710 | oldltime = ent->v.ltime; | ||
711 | |||
712 | thinktime = ent->v.nextthink; | ||
713 | if (thinktime < ent->v.ltime + host_frametime) | ||
714 | { | ||
715 | movetime = thinktime - ent->v.ltime; | ||
716 | if (movetime < 0) | ||
717 | movetime = 0; | ||
718 | } | ||
719 | else | ||
720 | movetime = host_frametime; | ||
721 | |||
722 | if (movetime) | ||
723 | { | ||
724 | #ifdef QUAKE2 | ||
725 | if (ent->v.avelocity[0] || ent->v.avelocity[1] || ent->v.avelocity[2]) | ||
726 | SV_PushRotate (ent, movetime); | ||
727 | else | ||
728 | #endif | ||
729 | SV_PushMove (ent, movetime); // advances ent->v.ltime if not blocked | ||
730 | } | ||
731 | |||
732 | if (thinktime > oldltime && thinktime <= ent->v.ltime) | ||
733 | { | ||
734 | ent->v.nextthink = 0; | ||
735 | pr_global_struct->time = sv.time; | ||
736 | pr_global_struct->self = EDICT_TO_PROG(ent); | ||
737 | pr_global_struct->other = EDICT_TO_PROG(sv.edicts); | ||
738 | PR_ExecuteProgram (ent->v.think); | ||
739 | if (ent->free) | ||
740 | return; | ||
741 | } | ||
742 | |||
743 | } | ||
744 | |||
745 | |||
746 | /* | ||
747 | =============================================================================== | ||
748 | |||
749 | CLIENT MOVEMENT | ||
750 | |||
751 | =============================================================================== | ||
752 | */ | ||
753 | |||
754 | /* | ||
755 | ============= | ||
756 | SV_CheckStuck | ||
757 | |||
758 | This is a big hack to try and fix the rare case of getting stuck in the world | ||
759 | clipping hull. | ||
760 | ============= | ||
761 | */ | ||
762 | void SV_CheckStuck (edict_t *ent) | ||
763 | { | ||
764 | int i, j; | ||
765 | int z; | ||
766 | vec3_t org; | ||
767 | |||
768 | if (!SV_TestEntityPosition(ent)) | ||
769 | { | ||
770 | VectorCopy (ent->v.origin, ent->v.oldorigin); | ||
771 | return; | ||
772 | } | ||
773 | |||
774 | VectorCopy (ent->v.origin, org); | ||
775 | VectorCopy (ent->v.oldorigin, ent->v.origin); | ||
776 | if (!SV_TestEntityPosition(ent)) | ||
777 | { | ||
778 | Con_DPrintf ("Unstuck.\n"); | ||
779 | SV_LinkEdict (ent, true); | ||
780 | return; | ||
781 | } | ||
782 | |||
783 | for (z=0 ; z< 18 ; z++) | ||
784 | for (i=-1 ; i <= 1 ; i++) | ||
785 | for (j=-1 ; j <= 1 ; j++) | ||
786 | { | ||
787 | ent->v.origin[0] = org[0] + i; | ||
788 | ent->v.origin[1] = org[1] + j; | ||
789 | ent->v.origin[2] = org[2] + z; | ||
790 | if (!SV_TestEntityPosition(ent)) | ||
791 | { | ||
792 | Con_DPrintf ("Unstuck.\n"); | ||
793 | SV_LinkEdict (ent, true); | ||
794 | return; | ||
795 | } | ||
796 | } | ||
797 | |||
798 | VectorCopy (org, ent->v.origin); | ||
799 | Con_DPrintf ("player is stuck.\n"); | ||
800 | } | ||
801 | |||
802 | |||
803 | /* | ||
804 | ============= | ||
805 | SV_CheckWater | ||
806 | ============= | ||
807 | */ | ||
808 | qboolean SV_CheckWater (edict_t *ent) | ||
809 | { | ||
810 | vec3_t point; | ||
811 | int cont; | ||
812 | #ifdef QUAKE2 | ||
813 | int truecont; | ||
814 | #endif | ||
815 | |||
816 | point[0] = ent->v.origin[0]; | ||
817 | point[1] = ent->v.origin[1]; | ||
818 | point[2] = ent->v.origin[2] + ent->v.mins[2] + 1; | ||
819 | |||
820 | ent->v.waterlevel = 0; | ||
821 | ent->v.watertype = CONTENTS_EMPTY; | ||
822 | cont = SV_PointContents (point); | ||
823 | if (cont <= CONTENTS_WATER) | ||
824 | { | ||
825 | #ifdef QUAKE2 | ||
826 | truecont = SV_TruePointContents (point); | ||
827 | #endif | ||
828 | ent->v.watertype = cont; | ||
829 | ent->v.waterlevel = 1; | ||
830 | point[2] = ent->v.origin[2] + (ent->v.mins[2] + ent->v.maxs[2])*0.5; | ||
831 | cont = SV_PointContents (point); | ||
832 | if (cont <= CONTENTS_WATER) | ||
833 | { | ||
834 | ent->v.waterlevel = 2; | ||
835 | point[2] = ent->v.origin[2] + ent->v.view_ofs[2]; | ||
836 | cont = SV_PointContents (point); | ||
837 | if (cont <= CONTENTS_WATER) | ||
838 | ent->v.waterlevel = 3; | ||
839 | } | ||
840 | #ifdef QUAKE2 | ||
841 | if (truecont <= CONTENTS_CURRENT_0 && truecont >= CONTENTS_CURRENT_DOWN) | ||
842 | { | ||
843 | static vec3_t current_table[] = | ||
844 | { | ||
845 | {1, 0, 0}, | ||
846 | {0, 1, 0}, | ||
847 | {-1, 0, 0}, | ||
848 | {0, -1, 0}, | ||
849 | {0, 0, 1}, | ||
850 | {0, 0, -1} | ||
851 | }; | ||
852 | |||
853 | VectorMA (ent->v.basevelocity, 150.0*ent->v.waterlevel/3.0, current_table[CONTENTS_CURRENT_0 - truecont], ent->v.basevelocity); | ||
854 | } | ||
855 | #endif | ||
856 | } | ||
857 | |||
858 | return ent->v.waterlevel > 1; | ||
859 | } | ||
860 | |||
861 | /* | ||
862 | ============ | ||
863 | SV_WallFriction | ||
864 | |||
865 | ============ | ||
866 | */ | ||
867 | void SV_WallFriction (edict_t *ent, trace_t *trace) | ||
868 | { | ||
869 | vec3_t forward, right, up; | ||
870 | float d, i; | ||
871 | vec3_t into, side; | ||
872 | |||
873 | AngleVectors (ent->v.v_angle, forward, right, up); | ||
874 | d = DotProduct (trace->plane.normal, forward); | ||
875 | |||
876 | d += 0.5; | ||
877 | if (d >= 0) | ||
878 | return; | ||
879 | |||
880 | // cut the tangential velocity | ||
881 | i = DotProduct (trace->plane.normal, ent->v.velocity); | ||
882 | VectorScale (trace->plane.normal, i, into); | ||
883 | VectorSubtract (ent->v.velocity, into, side); | ||
884 | |||
885 | ent->v.velocity[0] = side[0] * (1 + d); | ||
886 | ent->v.velocity[1] = side[1] * (1 + d); | ||
887 | } | ||
888 | |||
889 | /* | ||
890 | ===================== | ||
891 | SV_TryUnstick | ||
892 | |||
893 | Player has come to a dead stop, possibly due to the problem with limited | ||
894 | float precision at some angle joins in the BSP hull. | ||
895 | |||
896 | Try fixing by pushing one pixel in each direction. | ||
897 | |||
898 | This is a hack, but in the interest of good gameplay... | ||
899 | ====================== | ||
900 | */ | ||
901 | int SV_TryUnstick (edict_t *ent, vec3_t oldvel) | ||
902 | { | ||
903 | int i; | ||
904 | vec3_t oldorg; | ||
905 | vec3_t dir; | ||
906 | int clip; | ||
907 | trace_t steptrace; | ||
908 | |||
909 | VectorCopy (ent->v.origin, oldorg); | ||
910 | VectorCopy (vec3_origin, dir); | ||
911 | |||
912 | for (i=0 ; i<8 ; i++) | ||
913 | { | ||
914 | // try pushing a little in an axial direction | ||
915 | switch (i) | ||
916 | { | ||
917 | case 0: dir[0] = 2; dir[1] = 0; break; | ||
918 | case 1: dir[0] = 0; dir[1] = 2; break; | ||
919 | case 2: dir[0] = -2; dir[1] = 0; break; | ||
920 | case 3: dir[0] = 0; dir[1] = -2; break; | ||
921 | case 4: dir[0] = 2; dir[1] = 2; break; | ||
922 | case 5: dir[0] = -2; dir[1] = 2; break; | ||
923 | case 6: dir[0] = 2; dir[1] = -2; break; | ||
924 | case 7: dir[0] = -2; dir[1] = -2; break; | ||
925 | } | ||
926 | |||
927 | SV_PushEntity (ent, dir); | ||
928 | |||
929 | // retry the original move | ||
930 | ent->v.velocity[0] = oldvel[0]; | ||
931 | ent->v. velocity[1] = oldvel[1]; | ||
932 | ent->v. velocity[2] = 0; | ||
933 | clip = SV_FlyMove (ent, 0.1, &steptrace); | ||
934 | |||
935 | if ( fabs(oldorg[1] - ent->v.origin[1]) > 4 | ||
936 | || fabs(oldorg[0] - ent->v.origin[0]) > 4 ) | ||
937 | { | ||
938 | //Con_DPrintf ("unstuck!\n"); | ||
939 | return clip; | ||
940 | } | ||
941 | |||
942 | // go back to the original pos and try again | ||
943 | VectorCopy (oldorg, ent->v.origin); | ||
944 | } | ||
945 | |||
946 | VectorCopy (vec3_origin, ent->v.velocity); | ||
947 | return 7; // still not moving | ||
948 | } | ||
949 | |||
950 | /* | ||
951 | ===================== | ||
952 | SV_WalkMove | ||
953 | |||
954 | Only used by players | ||
955 | ====================== | ||
956 | */ | ||
957 | #define STEPSIZE 18 | ||
958 | void SV_WalkMove (edict_t *ent) | ||
959 | { | ||
960 | vec3_t upmove, downmove; | ||
961 | vec3_t oldorg, oldvel; | ||
962 | vec3_t nosteporg, nostepvel; | ||
963 | int clip; | ||
964 | int oldonground; | ||
965 | trace_t steptrace, downtrace; | ||
966 | |||
967 | // | ||
968 | // do a regular slide move unless it looks like you ran into a step | ||
969 | // | ||
970 | oldonground = (int)ent->v.flags & FL_ONGROUND; | ||
971 | ent->v.flags = (int)ent->v.flags & ~FL_ONGROUND; | ||
972 | |||
973 | VectorCopy (ent->v.origin, oldorg); | ||
974 | VectorCopy (ent->v.velocity, oldvel); | ||
975 | |||
976 | clip = SV_FlyMove (ent, host_frametime, &steptrace); | ||
977 | |||
978 | if ( !(clip & 2) ) | ||
979 | return; // move didn't block on a step | ||
980 | |||
981 | if (!oldonground && ent->v.waterlevel == 0) | ||
982 | return; // don't stair up while jumping | ||
983 | |||
984 | if (ent->v.movetype != MOVETYPE_WALK) | ||
985 | return; // gibbed by a trigger | ||
986 | |||
987 | if (sv_nostep.value) | ||
988 | return; | ||
989 | |||
990 | if ( (int)sv_player->v.flags & FL_WATERJUMP ) | ||
991 | return; | ||
992 | |||
993 | VectorCopy (ent->v.origin, nosteporg); | ||
994 | VectorCopy (ent->v.velocity, nostepvel); | ||
995 | |||
996 | // | ||
997 | // try moving up and forward to go up a step | ||
998 | // | ||
999 | VectorCopy (oldorg, ent->v.origin); // back to start pos | ||
1000 | |||
1001 | VectorCopy (vec3_origin, upmove); | ||
1002 | VectorCopy (vec3_origin, downmove); | ||
1003 | upmove[2] = STEPSIZE; | ||
1004 | downmove[2] = -STEPSIZE + oldvel[2]*host_frametime; | ||
1005 | |||
1006 | // move up | ||
1007 | SV_PushEntity (ent, upmove); // FIXME: don't link? | ||
1008 | |||
1009 | // move forward | ||
1010 | ent->v.velocity[0] = oldvel[0]; | ||
1011 | ent->v. velocity[1] = oldvel[1]; | ||
1012 | ent->v. velocity[2] = 0; | ||
1013 | clip = SV_FlyMove (ent, host_frametime, &steptrace); | ||
1014 | |||
1015 | // check for stuckness, possibly due to the limited precision of floats | ||
1016 | // in the clipping hulls | ||
1017 | if (clip) | ||
1018 | { | ||
1019 | if ( fabs(oldorg[1] - ent->v.origin[1]) < 0.03125 | ||
1020 | && fabs(oldorg[0] - ent->v.origin[0]) < 0.03125 ) | ||
1021 | { // stepping up didn't make any progress | ||
1022 | clip = SV_TryUnstick (ent, oldvel); | ||
1023 | } | ||
1024 | } | ||
1025 | |||
1026 | // extra friction based on view angle | ||
1027 | if ( clip & 2 ) | ||
1028 | SV_WallFriction (ent, &steptrace); | ||
1029 | |||
1030 | // move down | ||
1031 | downtrace = SV_PushEntity (ent, downmove); // FIXME: don't link? | ||
1032 | |||
1033 | if (downtrace.plane.normal[2] > 0.7) | ||
1034 | { | ||
1035 | if (ent->v.solid == SOLID_BSP) | ||
1036 | { | ||
1037 | ent->v.flags = (int)ent->v.flags | FL_ONGROUND; | ||
1038 | ent->v.groundentity = EDICT_TO_PROG(downtrace.ent); | ||
1039 | } | ||
1040 | } | ||
1041 | else | ||
1042 | { | ||
1043 | // if the push down didn't end up on good ground, use the move without | ||
1044 | // the step up. This happens near wall / slope combinations, and can | ||
1045 | // cause the player to hop up higher on a slope too steep to climb | ||
1046 | VectorCopy (nosteporg, ent->v.origin); | ||
1047 | VectorCopy (nostepvel, ent->v.velocity); | ||
1048 | } | ||
1049 | } | ||
1050 | |||
1051 | |||
1052 | /* | ||
1053 | ================ | ||
1054 | SV_Physics_Client | ||
1055 | |||
1056 | Player character actions | ||
1057 | ================ | ||
1058 | */ | ||
1059 | void SV_Physics_Client (edict_t *ent, int num) | ||
1060 | { | ||
1061 | if ( ! svs.clients[num-1].active ) | ||
1062 | return; // unconnected slot | ||
1063 | |||
1064 | // | ||
1065 | // call standard client pre-think | ||
1066 | // | ||
1067 | pr_global_struct->time = sv.time; | ||
1068 | pr_global_struct->self = EDICT_TO_PROG(ent); | ||
1069 | PR_ExecuteProgram (pr_global_struct->PlayerPreThink); | ||
1070 | |||
1071 | // | ||
1072 | // do a move | ||
1073 | // | ||
1074 | SV_CheckVelocity (ent); | ||
1075 | |||
1076 | // | ||
1077 | // decide which move function to call | ||
1078 | // | ||
1079 | switch ((int)ent->v.movetype) | ||
1080 | { | ||
1081 | case MOVETYPE_NONE: | ||
1082 | if (!SV_RunThink (ent)) | ||
1083 | return; | ||
1084 | break; | ||
1085 | |||
1086 | case MOVETYPE_WALK: | ||
1087 | if (!SV_RunThink (ent)) | ||
1088 | return; | ||
1089 | if (!SV_CheckWater (ent) && ! ((int)ent->v.flags & FL_WATERJUMP) ) | ||
1090 | SV_AddGravity (ent); | ||
1091 | SV_CheckStuck (ent); | ||
1092 | #ifdef QUAKE2 | ||
1093 | VectorAdd (ent->v.velocity, ent->v.basevelocity, ent->v.velocity); | ||
1094 | #endif | ||
1095 | SV_WalkMove (ent); | ||
1096 | |||
1097 | #ifdef QUAKE2 | ||
1098 | VectorSubtract (ent->v.velocity, ent->v.basevelocity, ent->v.velocity); | ||
1099 | #endif | ||
1100 | break; | ||
1101 | |||
1102 | case MOVETYPE_TOSS: | ||
1103 | case MOVETYPE_BOUNCE: | ||
1104 | SV_Physics_Toss (ent); | ||
1105 | break; | ||
1106 | |||
1107 | case MOVETYPE_FLY: | ||
1108 | if (!SV_RunThink (ent)) | ||
1109 | return; | ||
1110 | SV_FlyMove (ent, host_frametime, NULL); | ||
1111 | break; | ||
1112 | |||
1113 | case MOVETYPE_NOCLIP: | ||
1114 | if (!SV_RunThink (ent)) | ||
1115 | return; | ||
1116 | VectorMA (ent->v.origin, host_frametime, ent->v.velocity, ent->v.origin); | ||
1117 | break; | ||
1118 | |||
1119 | default: | ||
1120 | Sys_Error ("SV_Physics_client: bad movetype %i", (int)ent->v.movetype); | ||
1121 | } | ||
1122 | |||
1123 | // | ||
1124 | // call standard player post-think | ||
1125 | // | ||
1126 | SV_LinkEdict (ent, true); | ||
1127 | |||
1128 | pr_global_struct->time = sv.time; | ||
1129 | pr_global_struct->self = EDICT_TO_PROG(ent); | ||
1130 | PR_ExecuteProgram (pr_global_struct->PlayerPostThink); | ||
1131 | } | ||
1132 | |||
1133 | //============================================================================ | ||
1134 | |||
1135 | /* | ||
1136 | ============= | ||
1137 | SV_Physics_None | ||
1138 | |||
1139 | Non moving objects can only think | ||
1140 | ============= | ||
1141 | */ | ||
1142 | void SV_Physics_None (edict_t *ent) | ||
1143 | { | ||
1144 | // regular thinking | ||
1145 | SV_RunThink (ent); | ||
1146 | } | ||
1147 | |||
1148 | #ifdef QUAKE2 | ||
1149 | /* | ||
1150 | ============= | ||
1151 | SV_Physics_Follow | ||
1152 | |||
1153 | Entities that are "stuck" to another entity | ||
1154 | ============= | ||
1155 | */ | ||
1156 | void SV_Physics_Follow (edict_t *ent) | ||
1157 | { | ||
1158 | // regular thinking | ||
1159 | SV_RunThink (ent); | ||
1160 | VectorAdd (PROG_TO_EDICT(ent->v.aiment)->v.origin, ent->v.v_angle, ent->v.origin); | ||
1161 | SV_LinkEdict (ent, true); | ||
1162 | } | ||
1163 | #endif | ||
1164 | |||
1165 | /* | ||
1166 | ============= | ||
1167 | SV_Physics_Noclip | ||
1168 | |||
1169 | A moving object that doesn't obey physics | ||
1170 | ============= | ||
1171 | */ | ||
1172 | void SV_Physics_Noclip (edict_t *ent) | ||
1173 | { | ||
1174 | // regular thinking | ||
1175 | if (!SV_RunThink (ent)) | ||
1176 | return; | ||
1177 | |||
1178 | VectorMA (ent->v.angles, host_frametime, ent->v.avelocity, ent->v.angles); | ||
1179 | VectorMA (ent->v.origin, host_frametime, ent->v.velocity, ent->v.origin); | ||
1180 | |||
1181 | SV_LinkEdict (ent, false); | ||
1182 | } | ||
1183 | |||
1184 | /* | ||
1185 | ============================================================================== | ||
1186 | |||
1187 | TOSS / BOUNCE | ||
1188 | |||
1189 | ============================================================================== | ||
1190 | */ | ||
1191 | |||
1192 | /* | ||
1193 | ============= | ||
1194 | SV_CheckWaterTransition | ||
1195 | |||
1196 | ============= | ||
1197 | */ | ||
1198 | void SV_CheckWaterTransition (edict_t *ent) | ||
1199 | { | ||
1200 | int cont; | ||
1201 | #ifdef QUAKE2 | ||
1202 | vec3_t point; | ||
1203 | |||
1204 | point[0] = ent->v.origin[0]; | ||
1205 | point[1] = ent->v.origin[1]; | ||
1206 | point[2] = ent->v.origin[2] + ent->v.mins[2] + 1; | ||
1207 | cont = SV_PointContents (point); | ||
1208 | #else | ||
1209 | cont = SV_PointContents (ent->v.origin); | ||
1210 | #endif | ||
1211 | if (!ent->v.watertype) | ||
1212 | { // just spawned here | ||
1213 | ent->v.watertype = cont; | ||
1214 | ent->v.waterlevel = 1; | ||
1215 | return; | ||
1216 | } | ||
1217 | |||
1218 | if (cont <= CONTENTS_WATER) | ||
1219 | { | ||
1220 | if (ent->v.watertype == CONTENTS_EMPTY) | ||
1221 | { // just crossed into water | ||
1222 | SV_StartSound (ent, 0, "misc/h2ohit1.wav", 255, 1); | ||
1223 | } | ||
1224 | ent->v.watertype = cont; | ||
1225 | ent->v.waterlevel = 1; | ||
1226 | } | ||
1227 | else | ||
1228 | { | ||
1229 | if (ent->v.watertype != CONTENTS_EMPTY) | ||
1230 | { // just crossed into water | ||
1231 | SV_StartSound (ent, 0, "misc/h2ohit1.wav", 255, 1); | ||
1232 | } | ||
1233 | ent->v.watertype = CONTENTS_EMPTY; | ||
1234 | ent->v.waterlevel = cont; | ||
1235 | } | ||
1236 | } | ||
1237 | |||
1238 | /* | ||
1239 | ============= | ||
1240 | SV_Physics_Toss | ||
1241 | |||
1242 | Toss, bounce, and fly movement. When onground, do nothing. | ||
1243 | ============= | ||
1244 | */ | ||
1245 | void SV_Physics_Toss (edict_t *ent) | ||
1246 | { | ||
1247 | trace_t trace; | ||
1248 | vec3_t move; | ||
1249 | float backoff; | ||
1250 | #ifdef QUAKE2 | ||
1251 | edict_t *groundentity; | ||
1252 | |||
1253 | groundentity = PROG_TO_EDICT(ent->v.groundentity); | ||
1254 | if ((int)groundentity->v.flags & FL_CONVEYOR) | ||
1255 | VectorScale(groundentity->v.movedir, groundentity->v.speed, ent->v.basevelocity); | ||
1256 | else | ||
1257 | VectorCopy(vec_origin, ent->v.basevelocity); | ||
1258 | SV_CheckWater (ent); | ||
1259 | #endif | ||
1260 | // regular thinking | ||
1261 | if (!SV_RunThink (ent)) | ||
1262 | return; | ||
1263 | |||
1264 | #ifdef QUAKE2 | ||
1265 | if (ent->v.velocity[2] > 0) | ||
1266 | ent->v.flags = (int)ent->v.flags & ~FL_ONGROUND; | ||
1267 | |||
1268 | if ( ((int)ent->v.flags & FL_ONGROUND) ) | ||
1269 | //@@ | ||
1270 | if (VectorCompare(ent->v.basevelocity, vec_origin)) | ||
1271 | return; | ||
1272 | |||
1273 | SV_CheckVelocity (ent); | ||
1274 | |||
1275 | // add gravity | ||
1276 | if (! ((int)ent->v.flags & FL_ONGROUND) | ||
1277 | && ent->v.movetype != MOVETYPE_FLY | ||
1278 | && ent->v.movetype != MOVETYPE_BOUNCEMISSILE | ||
1279 | && ent->v.movetype != MOVETYPE_FLYMISSILE) | ||
1280 | SV_AddGravity (ent); | ||
1281 | |||
1282 | #else | ||
1283 | // if onground, return without moving | ||
1284 | if ( ((int)ent->v.flags & FL_ONGROUND) ) | ||
1285 | return; | ||
1286 | |||
1287 | SV_CheckVelocity (ent); | ||
1288 | |||
1289 | // add gravity | ||
1290 | if (ent->v.movetype != MOVETYPE_FLY | ||
1291 | && ent->v.movetype != MOVETYPE_FLYMISSILE) | ||
1292 | SV_AddGravity (ent); | ||
1293 | #endif | ||
1294 | |||
1295 | // move angles | ||
1296 | VectorMA (ent->v.angles, host_frametime, ent->v.avelocity, ent->v.angles); | ||
1297 | |||
1298 | // move origin | ||
1299 | #ifdef QUAKE2 | ||
1300 | VectorAdd (ent->v.velocity, ent->v.basevelocity, ent->v.velocity); | ||
1301 | #endif | ||
1302 | VectorScale (ent->v.velocity, host_frametime, move); | ||
1303 | trace = SV_PushEntity (ent, move); | ||
1304 | #ifdef QUAKE2 | ||
1305 | VectorSubtract (ent->v.velocity, ent->v.basevelocity, ent->v.velocity); | ||
1306 | #endif | ||
1307 | if (trace.fraction == 1) | ||
1308 | return; | ||
1309 | if (ent->free) | ||
1310 | return; | ||
1311 | |||
1312 | if (ent->v.movetype == MOVETYPE_BOUNCE) | ||
1313 | backoff = 1.5; | ||
1314 | #ifdef QUAKE2 | ||
1315 | else if (ent->v.movetype == MOVETYPE_BOUNCEMISSILE) | ||
1316 | backoff = 2.0; | ||
1317 | #endif | ||
1318 | else | ||
1319 | backoff = 1; | ||
1320 | |||
1321 | ClipVelocity (ent->v.velocity, trace.plane.normal, ent->v.velocity, backoff); | ||
1322 | |||
1323 | // stop if on ground | ||
1324 | if (trace.plane.normal[2] > 0.7) | ||
1325 | { | ||
1326 | #ifdef QUAKE2 | ||
1327 | if (ent->v.velocity[2] < 60 || (ent->v.movetype != MOVETYPE_BOUNCE && ent->v.movetype != MOVETYPE_BOUNCEMISSILE)) | ||
1328 | #else | ||
1329 | if (ent->v.velocity[2] < 60 || ent->v.movetype != MOVETYPE_BOUNCE) | ||
1330 | #endif | ||
1331 | { | ||
1332 | ent->v.flags = (int)ent->v.flags | FL_ONGROUND; | ||
1333 | ent->v.groundentity = EDICT_TO_PROG(trace.ent); | ||
1334 | VectorCopy (vec3_origin, ent->v.velocity); | ||
1335 | VectorCopy (vec3_origin, ent->v.avelocity); | ||
1336 | } | ||
1337 | } | ||
1338 | |||
1339 | // check for in water | ||
1340 | SV_CheckWaterTransition (ent); | ||
1341 | } | ||
1342 | |||
1343 | /* | ||
1344 | =============================================================================== | ||
1345 | |||
1346 | STEPPING MOVEMENT | ||
1347 | |||
1348 | =============================================================================== | ||
1349 | */ | ||
1350 | |||
1351 | /* | ||
1352 | ============= | ||
1353 | SV_Physics_Step | ||
1354 | |||
1355 | Monsters freefall when they don't have a ground entity, otherwise | ||
1356 | all movement is done with discrete steps. | ||
1357 | |||
1358 | This is also used for objects that have become still on the ground, but | ||
1359 | will fall if the floor is pulled out from under them. | ||
1360 | ============= | ||
1361 | */ | ||
1362 | #ifdef QUAKE2 | ||
1363 | void SV_Physics_Step (edict_t *ent) | ||
1364 | { | ||
1365 | qboolean wasonground; | ||
1366 | qboolean inwater; | ||
1367 | qboolean hitsound = false; | ||
1368 | float *vel; | ||
1369 | float speed, newspeed, control; | ||
1370 | float friction; | ||
1371 | edict_t *groundentity; | ||
1372 | |||
1373 | groundentity = PROG_TO_EDICT(ent->v.groundentity); | ||
1374 | if ((int)groundentity->v.flags & FL_CONVEYOR) | ||
1375 | VectorScale(groundentity->v.movedir, groundentity->v.speed, ent->v.basevelocity); | ||
1376 | else | ||
1377 | VectorCopy(vec_origin, ent->v.basevelocity); | ||
1378 | //@@ | ||
1379 | pr_global_struct->time = sv.time; | ||
1380 | pr_global_struct->self = EDICT_TO_PROG(ent); | ||
1381 | PF_WaterMove(); | ||
1382 | |||
1383 | SV_CheckVelocity (ent); | ||
1384 | |||
1385 | wasonground = (int)ent->v.flags & FL_ONGROUND; | ||
1386 | // ent->v.flags = (int)ent->v.flags & ~FL_ONGROUND; | ||
1387 | |||
1388 | // add gravity except: | ||
1389 | // flying monsters | ||
1390 | // swimming monsters who are in the water | ||
1391 | inwater = SV_CheckWater(ent); | ||
1392 | if (! wasonground) | ||
1393 | if (!((int)ent->v.flags & FL_FLY)) | ||
1394 | if (!(((int)ent->v.flags & FL_SWIM) && (ent->v.waterlevel > 0))) | ||
1395 | { | ||
1396 | if (ent->v.velocity[2] < sv_gravity.value*-0.1) | ||
1397 | hitsound = true; | ||
1398 | if (!inwater) | ||
1399 | SV_AddGravity (ent); | ||
1400 | } | ||
1401 | |||
1402 | if (!VectorCompare(ent->v.velocity, vec_origin) || !VectorCompare(ent->v.basevelocity, vec_origin)) | ||
1403 | { | ||
1404 | ent->v.flags = (int)ent->v.flags & ~FL_ONGROUND; | ||
1405 | // apply friction | ||
1406 | // let dead monsters who aren't completely onground slide | ||
1407 | if (wasonground) | ||
1408 | if (!(ent->v.health <= 0.0 && !SV_CheckBottom(ent))) | ||
1409 | { | ||
1410 | vel = ent->v.velocity; | ||
1411 | speed = sqrt(vel[0]*vel[0] +vel[1]*vel[1]); | ||
1412 | if (speed) | ||
1413 | { | ||
1414 | friction = sv_friction.value; | ||
1415 | |||
1416 | control = speed < sv_stopspeed.value ? sv_stopspeed.value : speed; | ||
1417 | newspeed = speed - host_frametime*control*friction; | ||
1418 | |||
1419 | if (newspeed < 0) | ||
1420 | newspeed = 0; | ||
1421 | newspeed /= speed; | ||
1422 | |||
1423 | vel[0] = vel[0] * newspeed; | ||
1424 | vel[1] = vel[1] * newspeed; | ||
1425 | } | ||
1426 | } | ||
1427 | |||
1428 | VectorAdd (ent->v.velocity, ent->v.basevelocity, ent->v.velocity); | ||
1429 | SV_FlyMove (ent, host_frametime, NULL); | ||
1430 | VectorSubtract (ent->v.velocity, ent->v.basevelocity, ent->v.velocity); | ||
1431 | |||
1432 | // determine if it's on solid ground at all | ||
1433 | { | ||
1434 | vec3_t mins, maxs, point; | ||
1435 | int x, y; | ||
1436 | |||
1437 | VectorAdd (ent->v.origin, ent->v.mins, mins); | ||
1438 | VectorAdd (ent->v.origin, ent->v.maxs, maxs); | ||
1439 | |||
1440 | point[2] = mins[2] - 1; | ||
1441 | for (x=0 ; x<=1 ; x++) | ||
1442 | for (y=0 ; y<=1 ; y++) | ||
1443 | { | ||
1444 | point[0] = x ? maxs[0] : mins[0]; | ||
1445 | point[1] = y ? maxs[1] : mins[1]; | ||
1446 | if (SV_PointContents (point) == CONTENTS_SOLID) | ||
1447 | { | ||
1448 | ent->v.flags = (int)ent->v.flags | FL_ONGROUND; | ||
1449 | break; | ||
1450 | } | ||
1451 | } | ||
1452 | |||
1453 | } | ||
1454 | |||
1455 | SV_LinkEdict (ent, true); | ||
1456 | |||
1457 | if ((int)ent->v.flags & FL_ONGROUND) | ||
1458 | if (!wasonground) | ||
1459 | if (hitsound) | ||
1460 | SV_StartSound (ent, 0, "demon/dland2.wav", 255, 1); | ||
1461 | } | ||
1462 | |||
1463 | // regular thinking | ||
1464 | SV_RunThink (ent); | ||
1465 | SV_CheckWaterTransition (ent); | ||
1466 | } | ||
1467 | #else | ||
1468 | void SV_Physics_Step (edict_t *ent) | ||
1469 | { | ||
1470 | qboolean hitsound; | ||
1471 | |||
1472 | // freefall if not onground | ||
1473 | if ( ! ((int)ent->v.flags & (FL_ONGROUND | FL_FLY | FL_SWIM) ) ) | ||
1474 | { | ||
1475 | if (ent->v.velocity[2] < sv_gravity.value*-0.1) | ||
1476 | hitsound = true; | ||
1477 | else | ||
1478 | hitsound = false; | ||
1479 | |||
1480 | SV_AddGravity (ent); | ||
1481 | SV_CheckVelocity (ent); | ||
1482 | SV_FlyMove (ent, host_frametime, NULL); | ||
1483 | SV_LinkEdict (ent, true); | ||
1484 | |||
1485 | if ( (int)ent->v.flags & FL_ONGROUND ) // just hit ground | ||
1486 | { | ||
1487 | if (hitsound) | ||
1488 | SV_StartSound (ent, 0, "demon/dland2.wav", 255, 1); | ||
1489 | } | ||
1490 | } | ||
1491 | |||
1492 | // regular thinking | ||
1493 | SV_RunThink (ent); | ||
1494 | |||
1495 | SV_CheckWaterTransition (ent); | ||
1496 | } | ||
1497 | #endif | ||
1498 | |||
1499 | //============================================================================ | ||
1500 | |||
1501 | /* | ||
1502 | ================ | ||
1503 | SV_Physics | ||
1504 | |||
1505 | ================ | ||
1506 | */ | ||
1507 | void SV_Physics (void) | ||
1508 | { | ||
1509 | int i; | ||
1510 | edict_t *ent; | ||
1511 | |||
1512 | // let the progs know that a new frame has started | ||
1513 | pr_global_struct->self = EDICT_TO_PROG(sv.edicts); | ||
1514 | pr_global_struct->other = EDICT_TO_PROG(sv.edicts); | ||
1515 | pr_global_struct->time = sv.time; | ||
1516 | PR_ExecuteProgram (pr_global_struct->StartFrame); | ||
1517 | |||
1518 | //SV_CheckAllEnts (); | ||
1519 | |||
1520 | // | ||
1521 | // treat each object in turn | ||
1522 | // | ||
1523 | ent = sv.edicts; | ||
1524 | for (i=0 ; i<sv.num_edicts ; i++, ent = NEXT_EDICT(ent)) | ||
1525 | { | ||
1526 | if (ent->free) | ||
1527 | continue; | ||
1528 | |||
1529 | if (pr_global_struct->force_retouch) | ||
1530 | { | ||
1531 | SV_LinkEdict (ent, true); // force retouch even for stationary | ||
1532 | } | ||
1533 | |||
1534 | if (i > 0 && i <= svs.maxclients) | ||
1535 | SV_Physics_Client (ent, i); | ||
1536 | else if (ent->v.movetype == MOVETYPE_PUSH) | ||
1537 | SV_Physics_Pusher (ent); | ||
1538 | else if (ent->v.movetype == MOVETYPE_NONE) | ||
1539 | SV_Physics_None (ent); | ||
1540 | #ifdef QUAKE2 | ||
1541 | else if (ent->v.movetype == MOVETYPE_FOLLOW) | ||
1542 | SV_Physics_Follow (ent); | ||
1543 | #endif | ||
1544 | else if (ent->v.movetype == MOVETYPE_NOCLIP) | ||
1545 | SV_Physics_Noclip (ent); | ||
1546 | else if (ent->v.movetype == MOVETYPE_STEP) | ||
1547 | SV_Physics_Step (ent); | ||
1548 | else if (ent->v.movetype == MOVETYPE_TOSS | ||
1549 | || ent->v.movetype == MOVETYPE_BOUNCE | ||
1550 | #ifdef QUAKE2 | ||
1551 | || ent->v.movetype == MOVETYPE_BOUNCEMISSILE | ||
1552 | #endif | ||
1553 | || ent->v.movetype == MOVETYPE_FLY | ||
1554 | || ent->v.movetype == MOVETYPE_FLYMISSILE) | ||
1555 | SV_Physics_Toss (ent); | ||
1556 | else | ||
1557 | Sys_Error ("SV_Physics: bad movetype %i", (int)ent->v.movetype); | ||
1558 | } | ||
1559 | |||
1560 | if (pr_global_struct->force_retouch) | ||
1561 | pr_global_struct->force_retouch--; | ||
1562 | |||
1563 | sv.time += host_frametime; | ||
1564 | } | ||
1565 | |||
1566 | |||
1567 | #ifdef QUAKE2 | ||
1568 | trace_t SV_Trace_Toss (edict_t *ent, edict_t *ignore) | ||
1569 | { | ||
1570 | edict_t tempent, *tent; | ||
1571 | trace_t trace; | ||
1572 | vec3_t move; | ||
1573 | vec3_t end; | ||
1574 | double save_frametime; | ||
1575 | // extern particle_t *active_particles, *free_particles; | ||
1576 | // particle_t *p; | ||
1577 | |||
1578 | |||
1579 | save_frametime = host_frametime; | ||
1580 | host_frametime = 0.05; | ||
1581 | |||
1582 | memcpy(&tempent, ent, sizeof(edict_t)); | ||
1583 | tent = &tempent; | ||
1584 | |||
1585 | while (1) | ||
1586 | { | ||
1587 | SV_CheckVelocity (tent); | ||
1588 | SV_AddGravity (tent); | ||
1589 | VectorMA (tent->v.angles, host_frametime, tent->v.avelocity, tent->v.angles); | ||
1590 | VectorScale (tent->v.velocity, host_frametime, move); | ||
1591 | VectorAdd (tent->v.origin, move, end); | ||
1592 | trace = SV_Move (tent->v.origin, tent->v.mins, tent->v.maxs, end, MOVE_NORMAL, tent); | ||
1593 | VectorCopy (trace.endpos, tent->v.origin); | ||
1594 | |||
1595 | // p = free_particles; | ||
1596 | // if (p) | ||
1597 | // { | ||
1598 | // free_particles = p->next; | ||
1599 | // p->next = active_particles; | ||
1600 | // active_particles = p; | ||
1601 | // | ||
1602 | // p->die = 256; | ||
1603 | // p->color = 15; | ||
1604 | // p->type = pt_static; | ||
1605 | // VectorCopy (vec3_origin, p->vel); | ||
1606 | // VectorCopy (tent->v.origin, p->org); | ||
1607 | // } | ||
1608 | |||
1609 | if (trace.ent) | ||
1610 | if (trace.ent != ignore) | ||
1611 | break; | ||
1612 | } | ||
1613 | // p->color = 224; | ||
1614 | host_frametime = save_frametime; | ||
1615 | return trace; | ||
1616 | } | ||
1617 | #endif | ||