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1.1 root 1: // cl_main.c -- client main loop
2:
3: #include "quakedef.h"
4:
5: // we need to declare some mouse variables here, because the menu system
6: // references them even when on a unix system.
7:
8: // these two are not intended to be set directly
9: cvar_t cl_name = {"_cl_name", "player", true};
10: cvar_t cl_color = {"_cl_color", "0", true};
11:
12: cvar_t cl_shownet = {"cl_shownet","0"}; // can be 0, 1, or 2
13: cvar_t cl_nolerp = {"cl_nolerp","0"};
14:
15: cvar_t lookspring = {"lookspring","0", true};
16: cvar_t lookstrafe = {"lookstrafe","0", true};
17: cvar_t sensitivity = {"sensitivity","3", true};
18:
19: cvar_t m_pitch = {"m_pitch","0.022", true};
20: cvar_t m_yaw = {"m_yaw","0.022"};
21: cvar_t m_forward = {"m_forward","1"};
22: cvar_t m_side = {"m_side","0.8"};
23:
24:
25: client_static_t cls;
26: client_state_t cl;
27: // FIXME: put these on hunk?
28: efrag_t cl_efrags[MAX_EFRAGS];
29: entity_t cl_entities[MAX_EDICTS];
30: entity_t cl_static_entities[MAX_STATIC_ENTITIES];
31: lightstyle_t cl_lightstyle[MAX_LIGHTSTYLES];
32: dlight_t cl_dlights[MAX_DLIGHTS];
33:
34: int cl_numvisedicts;
35: entity_t *cl_visedicts[MAX_VISEDICTS];
36:
37: /*
38: =====================
39: CL_ClearState
40:
41: =====================
42: */
43: void CL_ClearState (void)
44: {
45: int i;
46:
47: if (!sv.active)
48: Host_ClearMemory ();
49:
50: // wipe the entire cl structure
51: memset (&cl, 0, sizeof(cl));
52:
53: SZ_Clear (&cls.message);
54:
55: // clear other arrays
56: memset (cl_efrags, 0, sizeof(cl_efrags));
57: memset (cl_entities, 0, sizeof(cl_entities));
58: memset (cl_dlights, 0, sizeof(cl_dlights));
59: memset (cl_lightstyle, 0, sizeof(cl_lightstyle));
60: memset (cl_temp_entities, 0, sizeof(cl_temp_entities));
61: memset (cl_beams, 0, sizeof(cl_beams));
62:
63: //
64: // allocate the efrags and chain together into a free list
65: //
66: cl.free_efrags = cl_efrags;
67: for (i=0 ; i<MAX_EFRAGS-1 ; i++)
68: cl.free_efrags[i].entnext = &cl.free_efrags[i+1];
69: cl.free_efrags[i].entnext = NULL;
70: }
71:
72: /*
73: =====================
74: CL_Disconnect
75:
76: Sends a disconnect message to the server
77: This is also called on Host_Error, so it shouldn't cause any errors
78: =====================
79: */
80: void CL_Disconnect (void)
81: {
82: // stop sounds (especially looping!)
83: S_StopAllSounds ();
84:
85: // bring the console down and fade the colors back to normal
86: // SCR_BringDownConsole ();
87:
88: // if running a local server, shut it down
89: if (cls.demoplayback)
90: CL_StopPlayback ();
91: else if (cls.state == ca_connected)
92: {
93: if (cls.demorecording)
94: CL_Stop_f ();
95:
96: Con_DPrintf ("Sending clc_disconnect\n");
97: SZ_Clear (&cls.message);
98: MSG_WriteByte (&cls.message, clc_disconnect);
99: NET_SendUnreliableMessage (cls.netcon, &cls.message);
100: SZ_Clear (&cls.message);
101: NET_Close (cls.netcon);
102:
103: cls.state = ca_disconnected;
104: if (sv.active)
105: Host_ShutdownServer(false);
106: }
107:
108: cls.demoplayback = cls.demorecording = cls.timedemo = false;
109: cls.signon = 0;
110: }
111:
112: void CL_Disconnect_f (void)
113: {
114: CL_Disconnect ();
115: if (sv.active)
116: Host_ShutdownServer (false);
117: }
118:
119:
120:
121:
122: /*
123: =====================
124: CL_EstablishConnection
125:
126: Host should be either "local" or a net address to be passed on
127: =====================
128: */
129: void CL_EstablishConnection (char *host)
130: {
131: if (cls.state == ca_dedicated)
132: return;
133:
134: if (cls.demoplayback)
135: return;
136:
137: CL_Disconnect ();
138:
139: cls.netcon = NET_Connect (host);
140: if (!cls.netcon)
141: Host_Error ("CL_Connect: connect failed\n");
142: Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
143:
144: cls.demonum = -1; // not in the demo loop now
145: cls.state = ca_connected;
146: cls.signon = 0; // need all the signon messages before playing
147: }
148:
149: /*
150: =====================
151: CL_SignonReply
152:
153: An svc_signonnum has been received, perform a client side setup
154: =====================
155: */
156: void CL_SignonReply (void)
157: {
158: char str[8192];
159:
160: Con_DPrintf ("CL_SignonReply: %i\n", cls.signon);
161:
162: switch (cls.signon)
163: {
164: case 1:
165: MSG_WriteByte (&cls.message, clc_stringcmd);
166: MSG_WriteString (&cls.message, "prespawn");
167: break;
168:
169: case 2:
170: MSG_WriteByte (&cls.message, clc_stringcmd);
171: MSG_WriteString (&cls.message, va("name \"%s\"\n", cl_name.string));
172:
173: MSG_WriteByte (&cls.message, clc_stringcmd);
174: MSG_WriteString (&cls.message, va("color %i %i\n", ((int)cl_color.value)>>4, ((int)cl_color.value)&15));
175:
176: MSG_WriteByte (&cls.message, clc_stringcmd);
177: sprintf (str, "spawn %s", cls.spawnparms);
178: MSG_WriteString (&cls.message, str);
179: break;
180:
181: case 3:
182: MSG_WriteByte (&cls.message, clc_stringcmd);
183: MSG_WriteString (&cls.message, "begin");
184: Cache_Report (); // print remaining memory
185: break;
186:
187: case 4:
188: SCR_EndLoadingPlaque (); // allow normal screen updates
189: break;
190: }
191: }
192:
193: /*
194: =====================
195: CL_NextDemo
196:
197: Called to play the next demo in the demo loop
198: =====================
199: */
200: void CL_NextDemo (void)
201: {
202: char str[1024];
203:
204: if (cls.demonum == -1)
205: return; // don't play demos
206:
207: SCR_BeginLoadingPlaque ();
208:
209: if (!cls.demos[cls.demonum][0] || cls.demonum == MAX_DEMOS)
210: {
211: cls.demonum = 0;
212: if (!cls.demos[cls.demonum][0])
213: {
214: Con_Printf ("No demos listed with startdemos\n");
215: cls.demonum = -1;
216: return;
217: }
218: }
219:
220: sprintf (str,"playdemo %s\n", cls.demos[cls.demonum]);
221: Cbuf_InsertText (str);
222: cls.demonum++;
223: }
224:
225: /*
226: ==============
227: CL_PrintEntities_f
228: ==============
229: */
230: void CL_PrintEntities_f (void)
231: {
232: entity_t *ent;
233: int i;
234:
235: for (i=0,ent=cl_entities ; i<cl.num_entities ; i++,ent++)
236: {
237: Con_Printf ("%3i:",i);
238: if (!ent->model)
239: {
240: Con_Printf ("EMPTY\n");
241: continue;
242: }
243: Con_Printf ("%s:%2i (%5.1f,%5.1f,%5.1f) [%5.1f %5.1f %5.1f]\n"
244: ,ent->model->name,ent->frame, ent->origin[0], ent->origin[1], ent->origin[2], ent->angles[0], ent->angles[1], ent->angles[2]);
245: }
246: }
247:
248:
249: /*
250: ===============
251: SetPal
252:
253: Debugging tool, just flashes the screen
254: ===============
255: */
256: void SetPal (int i)
257: {
258: #if 0
259: static int old;
260: byte pal[768];
261: int c;
262:
263: if (i == old)
264: return;
265: old = i;
266:
267: if (i==0)
268: VID_SetPalette (host_basepal);
269: else if (i==1)
270: {
271: for (c=0 ; c<768 ; c+=3)
272: {
273: pal[c] = 0;
274: pal[c+1] = 255;
275: pal[c+2] = 0;
276: }
277: VID_SetPalette (pal);
278: }
279: else
280: {
281: for (c=0 ; c<768 ; c+=3)
282: {
283: pal[c] = 0;
284: pal[c+1] = 0;
285: pal[c+2] = 255;
286: }
287: VID_SetPalette (pal);
288: }
289: #endif
290: }
291:
292: /*
293: ===============
294: CL_AllocDlight
295:
296: ===============
297: */
298: dlight_t *CL_AllocDlight (void)
299: {
300: int i;
301: dlight_t *dl;
302:
303: dl = cl_dlights;
304: for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
305: {
306: if (dl->die < cl.time)
307: {
308: memset (dl, 0, sizeof(*dl));
309: return dl;
310: }
311: }
312:
313: memset (&cl_dlights[0], 0, sizeof(*dl));
314: return &cl_dlights[0];
315: }
316:
317:
318: /*
319: ===============
320: CL_DecayLights
321:
322: ===============
323: */
324: void CL_DecayLights (void)
325: {
326: int i;
327: dlight_t *dl;
328: float time;
329:
330: time = cl.time - cl.oldtime;
331:
332: dl = cl_dlights;
333: for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
334: {
335: if (dl->die < cl.time || !dl->radius)
336: continue;
337:
338: dl->radius -= time*dl->decay;
339: if (dl->radius < 0)
340: dl->radius = 0;
341: }
342: }
343:
344:
345: /*
346: ===============
347: CL_LerpPoint
348:
349: Determines the fraction between the last two messages that the objects
350: should be put at.
351: ===============
352: */
353: float CL_LerpPoint (void)
354: {
355: float f, frac;
356:
357: f = cl.mtime[0] - cl.mtime[1];
358:
359: if (!f || cl_nolerp.value || cls.timedemo || sv.active)
360: {
361: cl.time = cl.mtime[0];
362: return 1;
363: }
364:
365: if (f > 0.1)
366: { // dropped packet, or start of demo
367: cl.mtime[1] = cl.mtime[0] - 0.1;
368: f = 0.1;
369: }
370: frac = (cl.time - cl.mtime[1]) / f;
371: //Con_Printf ("frac: %f\n",frac);
372: if (frac < 0)
373: {
374: if (frac < -0.01)
375: {
376: SetPal(1);
377: cl.time = cl.mtime[1];
378: // Con_Printf ("low frac\n");
379: }
380: frac = 0;
381: }
382: else if (frac > 1)
383: {
384: if (frac > 1.01)
385: {
386: SetPal(2);
387: cl.time = cl.mtime[0];
388: // Con_Printf ("high frac\n");
389: }
390: frac = 1;
391: }
392: else
393: SetPal(0);
394:
395: return frac;
396: }
397:
398:
399: /*
400: ===============
401: CL_RelinkEntities
402: ===============
403: */
404: void CL_RelinkEntities (void)
405: {
406: entity_t *ent;
407: int i, j;
408: float frac, f, d;
409: vec3_t delta;
410: float bobjrotate;
411: vec3_t oldorg;
412: dlight_t *dl;
413:
414: // determine partial update time
415: frac = CL_LerpPoint ();
416:
417: cl_numvisedicts = 0;
418:
419: //
420: // interpolate player info
421: //
422: for (i=0 ; i<3 ; i++)
423: cl.velocity[i] = cl.mvelocity[1][i] +
424: frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
425:
426: if (cls.demoplayback)
427: {
428: // interpolate the angles
429: for (j=0 ; j<3 ; j++)
430: {
431: d = cl.mviewangles[0][j] - cl.mviewangles[1][j];
432: if (d > 180)
433: d -= 360;
434: else if (d < -180)
435: d += 360;
436: cl.viewangles[j] = cl.mviewangles[1][j] + frac*d;
437: }
438: }
439:
440: bobjrotate = anglemod(100*cl.time);
441:
442: // start on the entity after the world
443: for (i=1,ent=cl_entities+1 ; i<cl.num_entities ; i++,ent++)
444: {
445: if (!ent->model)
446: { // empty slot
447: if (ent->forcelink)
448: R_RemoveEfrags (ent); // just became empty
449: continue;
450: }
451:
452: // if the object wasn't included in the last packet, remove it
453: if (ent->msgtime != cl.mtime[0])
454: {
455: ent->model = NULL;
456: continue;
457: }
458:
459: VectorCopy (ent->origin, oldorg);
460:
461: if (ent->forcelink)
462: { // the entity was not updated in the last message
463: // so move to the final spot
464: VectorCopy (ent->msg_origins[0], ent->origin);
465: VectorCopy (ent->msg_angles[0], ent->angles);
466: }
467: else
468: { // if the delta is large, assume a teleport and don't lerp
469: f = frac;
470: for (j=0 ; j<3 ; j++)
471: {
472: delta[j] = ent->msg_origins[0][j] - ent->msg_origins[1][j];
473: if (delta[j] > 100 || delta[j] < -100)
474: f = 1; // assume a teleportation, not a motion
475: }
476:
477: // interpolate the origin and angles
478: for (j=0 ; j<3 ; j++)
479: {
480: ent->origin[j] = ent->msg_origins[1][j] + f*delta[j];
481:
482: d = ent->msg_angles[0][j] - ent->msg_angles[1][j];
483: if (d > 180)
484: d -= 360;
485: else if (d < -180)
486: d += 360;
487: ent->angles[j] = ent->msg_angles[1][j] + f*d;
488: }
489:
490: }
491:
492: // rotate binary objects locally
493: if (ent->model->flags & EF_ROTATE)
494: ent->angles[1] = bobjrotate;
495:
496: if (ent->effects & EF_BRIGHTFIELD)
497: R_EntityParticles (ent);
498: if (ent->effects & EF_MUZZLEFLASH)
499: {
500: vec3_t fv, rv, uv;
501:
502: dl = CL_AllocDlight ();
503: VectorCopy (ent->origin, dl->origin);
504: dl->origin[2] += 16;
505: AngleVectors (ent->angles, fv, rv, uv);
506:
507: VectorMA (dl->origin, 18, fv, dl->origin);
508: dl->radius = 200 + (rand()&31);
509: dl->minlight = 32;
510: dl->die = cl.time + 0.1;
511: }
512: if (ent->effects & EF_BRIGHTLIGHT)
513: {
514: dl = CL_AllocDlight ();
515: VectorCopy (ent->origin, dl->origin);
516: dl->origin[2] += 16;
517: dl->radius = 400 + (rand()&31);
518: dl->die = cl.time + 0.001;
519: }
520: if (ent->effects & EF_DIMLIGHT)
521: {
522: dl = CL_AllocDlight ();
523: VectorCopy (ent->origin, dl->origin);
524: dl->radius = 200 + (rand()&31);
525: dl->die = cl.time + 0.001;
526: }
527:
528: if (ent->model->flags & EF_GIB)
529: R_RocketTrail (oldorg, ent->origin, 2);
530: else if (ent->model->flags & EF_ZOMGIB)
531: R_RocketTrail (oldorg, ent->origin, 4);
532: else if (ent->model->flags & EF_TRACER)
533: R_RocketTrail (oldorg, ent->origin, 3);
534: else if (ent->model->flags & EF_TRACER2)
535: R_RocketTrail (oldorg, ent->origin, 5);
536: else if (ent->model->flags & EF_ROCKET)
537: {
538: R_RocketTrail (oldorg, ent->origin, 0);
539: dl = CL_AllocDlight ();
540: VectorCopy (ent->origin, dl->origin);
541: dl->radius = 200;
542: dl->die = cl.time + 0.01;
543: }
544: else if (ent->model->flags & EF_GRENADE)
545: R_RocketTrail (oldorg, ent->origin, 1);
546: else if (ent->model->flags & EF_TRACER3)
547: R_RocketTrail (oldorg, ent->origin, 6);
548:
549: ent->forcelink = false;
550: if (i != cl.viewentity)
551: {
552: if (cl_numvisedicts < MAX_VISEDICTS)
553: {
554: cl_visedicts[cl_numvisedicts] = ent;
555: cl_numvisedicts++;
556: }
557: }
558: }
559:
560: }
561:
562:
563: /*
564: ===============
565: CL_ReadFromServer
566:
567: Read all incoming data from the server
568: ===============
569: */
570: int CL_ReadFromServer (void)
571: {
572: int ret;
573:
574: cl.oldtime = cl.time;
575: cl.time += host_frametime;
576:
577: do
578: {
579: ret = CL_GetMessage ();
580: if (ret == -1)
581: Host_Error ("CL_ReadFromServer: lost server connection");
582: if (!ret)
583: break;
584:
585: cl.last_received_message = realtime;
586: CL_ParseServerMessage ();
587: } while (ret && cls.state == ca_connected);
588:
589: if (cl_shownet.value)
590: Con_Printf ("\n");
591:
592: CL_RelinkEntities ();
593: CL_UpdateTEnts ();
594:
595: //
596: // bring the links up to date
597: //
598: return 0;
599: }
600:
601: /*
602: =================
603: CL_SendCmd
604: =================
605: */
606: void CL_SendCmd (void)
607: {
608: usercmd_t cmd;
609:
610: if (cls.state != ca_connected)
611: return;
612:
613: if (cls.signon == SIGNONS)
614: {
615: // get basic movement from keyboard
616: CL_BaseMove (&cmd);
617:
618: // allow mice or other external controllers to add to the move
619: IN_Move (&cmd);
620:
621: // send the unreliable message
622: CL_SendMove (&cmd);
623:
624: }
625:
626: if (cls.demoplayback)
627: {
628: SZ_Clear (&cls.message);
629: return;
630: }
631:
632: // send the reliable message
633: if (!cls.message.cursize)
634: return; // no message at all
635:
636: if (!NET_CanSendMessage (cls.netcon))
637: {
638: Con_DPrintf ("CL_WriteToServer: can't send\n");
639: return;
640: }
641:
642: if (NET_SendMessage (cls.netcon, &cls.message) == -1)
643: Host_Error ("CL_WriteToServer: lost server connection");
644:
645: SZ_Clear (&cls.message);
646: }
647:
648: /*
649: =================
650: CL_Init
651: =================
652: */
653: void CL_Init (void)
654: {
655: SZ_Alloc (&cls.message, 1024);
656:
657: CL_InitInput ();
658: CL_InitTEnts ();
659:
660: //
661: // register our commands
662: //
663: Cvar_RegisterVariable (&cl_name);
664: Cvar_RegisterVariable (&cl_color);
665: Cvar_RegisterVariable (&cl_upspeed);
666: Cvar_RegisterVariable (&cl_forwardspeed);
667: Cvar_RegisterVariable (&cl_backspeed);
668: Cvar_RegisterVariable (&cl_sidespeed);
669: Cvar_RegisterVariable (&cl_movespeedkey);
670: Cvar_RegisterVariable (&cl_yawspeed);
671: Cvar_RegisterVariable (&cl_pitchspeed);
672: Cvar_RegisterVariable (&cl_anglespeedkey);
673: Cvar_RegisterVariable (&cl_shownet);
674: Cvar_RegisterVariable (&cl_nolerp);
675: Cvar_RegisterVariable (&lookspring);
676: Cvar_RegisterVariable (&lookstrafe);
677: Cvar_RegisterVariable (&sensitivity);
678:
679: Cvar_RegisterVariable (&m_pitch);
680: Cvar_RegisterVariable (&m_yaw);
681: Cvar_RegisterVariable (&m_forward);
682: Cvar_RegisterVariable (&m_side);
683:
684: // Cvar_RegisterVariable (&cl_autofire);
685:
686: Cmd_AddCommand ("entities", CL_PrintEntities_f);
687: Cmd_AddCommand ("disconnect", CL_Disconnect_f);
688: Cmd_AddCommand ("record", CL_Record_f);
689: Cmd_AddCommand ("stop", CL_Stop_f);
690: Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
691: Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
692: }
693:
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