aboutsummaryrefslogtreecommitdiffstats
path: root/code/client/client.h
blob: f188f4be07805ece192db77207b2123eef0adfbb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.

This file is part of Quake III Arena source code.

Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.

Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/
// client.h -- primary header for client

#include "../game/q_shared.h"
#include "../qcommon/qcommon.h"
#include "../renderer/tr_public.h"
#include "../ui/ui_public.h"
#include "keys.h"
#include "snd_public.h"
#include "../cgame/cg_public.h"
#include "../game/bg_public.h"

#define	RETRANSMIT_TIMEOUT	3000	// time between connection packet retransmits


// snapshots are a view of the server at a given time
typedef struct {
	qboolean		valid;			// cleared if delta parsing was invalid
	int				snapFlags;		// rate delayed and dropped commands

	int				serverTime;		// server time the message is valid for (in msec)

	int				messageNum;		// copied from netchan->incoming_sequence
	int				deltaNum;		// messageNum the delta is from
	int				ping;			// time from when cmdNum-1 was sent to time packet was reeceived
	byte			areamask[MAX_MAP_AREA_BYTES];		// portalarea visibility bits

	int				cmdNum;			// the next cmdNum the server is expecting
	playerState_t	ps;						// complete information about the current player at this time

	int				numEntities;			// all of the entities that need to be presented
	int				parseEntitiesNum;		// at the time of this snapshot

	int				serverCommandNum;		// execute all commands up to this before
											// making the snapshot current
} clSnapshot_t;



/*
=============================================================================

the clientActive_t structure is wiped completely at every
new gamestate_t, potentially several times during an established connection

=============================================================================
*/

typedef struct {
	int		p_cmdNumber;		// cl.cmdNumber when packet was sent
	int		p_serverTime;		// usercmd->serverTime when packet was sent
	int		p_realtime;			// cls.realtime when packet was sent
} outPacket_t;

// the parseEntities array must be large enough to hold PACKET_BACKUP frames of
// entities, so that when a delta compressed message arives from the server
// it can be un-deltad from the original 
#define	MAX_PARSE_ENTITIES	2048

extern int g_console_field_width;

typedef struct {
	int			timeoutcount;		// it requres several frames in a timeout condition
									// to disconnect, preventing debugging breaks from
									// causing immediate disconnects on continue
	clSnapshot_t	snap;			// latest received from server

	int			serverTime;			// may be paused during play
	int			oldServerTime;		// to prevent time from flowing bakcwards
	int			oldFrameServerTime;	// to check tournament restarts
	int			serverTimeDelta;	// cl.serverTime = cls.realtime + cl.serverTimeDelta
									// this value changes as net lag varies
	qboolean	extrapolatedSnapshot;	// set if any cgame frame has been forced to extrapolate
									// cleared when CL_AdjustTimeDelta looks at it
	qboolean	newSnapshots;		// set on parse of any valid packet

	gameState_t	gameState;			// configstrings
	char		mapname[MAX_QPATH];	// extracted from CS_SERVERINFO

	int			parseEntitiesNum;	// index (not anded off) into cl_parse_entities[]

	int			mouseDx[2], mouseDy[2];	// added to by mouse events
	int			mouseIndex;
	int			joystickAxis[MAX_JOYSTICK_AXIS];	// set by joystick events

	// cgame communicates a few values to the client system
	int			cgameUserCmdValue;	// current weapon to add to usercmd_t
	float		cgameSensitivity;

	// cmds[cmdNumber] is the predicted command, [cmdNumber-1] is the last
	// properly generated command
	usercmd_t	cmds[CMD_BACKUP];	// each mesage will send several old cmds
	int			cmdNumber;			// incremented each frame, because multiple
									// frames may need to be packed into a single packet

	outPacket_t	outPackets[PACKET_BACKUP];	// information about each packet we have sent out

	// the client maintains its own idea of view angles, which are
	// sent to the server each frame.  It is cleared to 0 upon entering each level.
	// the server sends a delta each frame which is added to the locally
	// tracked view angles to account for standing on rotating objects,
	// and teleport direction changes
	vec3_t		viewangles;

	int			serverId;			// included in each client message so the server
												// can tell if it is for a prior map_restart
	// big stuff at end of structure so most offsets are 15 bits or less
	clSnapshot_t	snapshots[PACKET_BACKUP];

	entityState_t	entityBaselines[MAX_GENTITIES];	// for delta compression when not in previous frame

	entityState_t	parseEntities[MAX_PARSE_ENTITIES];
} clientActive_t;

extern	clientActive_t		cl;

/*
=============================================================================

the clientConnection_t structure is wiped when disconnecting from a server,
either to go to a full screen console, play a demo, or connect to a different server

A connection can be to either a server through the network layer or a
demo through a file.

=============================================================================
*/


typedef struct {

	int			clientNum;
	int			lastPacketSentTime;			// for retransmits during connection
	int			lastPacketTime;				// for timeouts

	netadr_t	serverAddress;
	int			connectTime;				// for connection retransmits
	int			connectPacketCount;			// for display on connection dialog
	char		serverMessage[MAX_STRING_TOKENS];	// for display on connection dialog

	int			challenge;					// from the server to use for connecting
	int			checksumFeed;				// from the server for checksum calculations

	// these are our reliable messages that go to the server
	int			reliableSequence;
	int			reliableAcknowledge;		// the last one the server has executed
	char		reliableCommands[MAX_RELIABLE_COMMANDS][MAX_STRING_CHARS];

	// server message (unreliable) and command (reliable) sequence
	// numbers are NOT cleared at level changes, but continue to
	// increase as long as the connection is valid

	// message sequence is used by both the network layer and the
	// delta compression layer
	int			serverMessageSequence;

	// reliable messages received from server
	int			serverCommandSequence;
	int			lastExecutedServerCommand;		// last server command grabbed or executed with CL_GetServerCommand
	char		serverCommands[MAX_RELIABLE_COMMANDS][MAX_STRING_CHARS];

	// file transfer from server
	fileHandle_t download;
	char		downloadTempName[MAX_OSPATH];
	char		downloadName[MAX_OSPATH];
	int			downloadNumber;
	int			downloadBlock;	// block we are waiting for
	int			downloadCount;	// how many bytes we got
	int			downloadSize;	// how many bytes we got
	char		downloadList[MAX_INFO_STRING]; // list of paks we need to download
	qboolean	downloadRestart;	// if true, we need to do another FS_Restart because we downloaded a pak

	// demo information
	char		demoName[MAX_QPATH];
	qboolean	spDemoRecording;
	qboolean	demorecording;
	qboolean	demoplaying;
	qboolean	demowaiting;	// don't record until a non-delta message is received
	qboolean	firstDemoFrameSkipped;
	fileHandle_t	demofile;

	int			timeDemoFrames;		// counter of rendered frames
	int			timeDemoStart;		// cls.realtime before first frame
	int			timeDemoBaseTime;	// each frame will be at this time + frameNum * 50

	// big stuff at end of structure so most offsets are 15 bits or less
	netchan_t	netchan;
} clientConnection_t;

extern	clientConnection_t clc;

/*
==================================================================

the clientStatic_t structure is never wiped, and is used even when
no client connection is active at all

==================================================================
*/

typedef struct {
	netadr_t	adr;
	int			start;
	int			time;
	char		info[MAX_INFO_STRING];
} ping_t;

typedef struct {
	netadr_t	adr;
	char	  	hostName[MAX_NAME_LENGTH];
	char	  	mapName[MAX_NAME_LENGTH];
	char	  	game[MAX_NAME_LENGTH];
	int			netType;
	int			gameType;
	int		  	clients;
	int		  	maxClients;
	int			minPing;
	int			maxPing;
	int			ping;
	qboolean	visible;
	int			punkbuster;
} serverInfo_t;

typedef struct {
	byte	ip[4];
	unsigned short	port;
} serverAddress_t;

typedef struct {
	connstate_t	state;				// connection status
	int			keyCatchers;		// bit flags

	qboolean	cddialog;			// bring up the cd needed dialog next frame

	char		servername[MAX_OSPATH];		// name of server from original connect (used by reconnect)

	// when the server clears the hunk, all of these must be restarted
	qboolean	rendererStarted;
	qboolean	soundStarted;
	qboolean	soundRegistered;
	qboolean	uiStarted;
	qboolean	cgameStarted;

	int			framecount;
	int			frametime;			// msec since last frame

	int			realtime;			// ignores pause
	int			realFrametime;		// ignoring pause, so console always works

	int			numlocalservers;
	serverInfo_t	localServers[MAX_OTHER_SERVERS];

	int			numglobalservers;
	serverInfo_t  globalServers[MAX_GLOBAL_SERVERS];
	// additional global servers
	int			numGlobalServerAddresses;
	serverAddress_t		globalServerAddresses[MAX_GLOBAL_SERVERS];

	int			numfavoriteservers;
	serverInfo_t	favoriteServers[MAX_OTHER_SERVERS];

	int			nummplayerservers;
	serverInfo_t	mplayerServers[MAX_OTHER_SERVERS];

	int pingUpdateSource;		// source currently pinging or updating

	int masterNum;

	// update server info
	netadr_t	updateServer;
	char		updateChallenge[MAX_TOKEN_CHARS];
	char		updateInfoString[MAX_INFO_STRING];

	netadr_t	authorizeServer;

	// rendering info
	glconfig_t	glconfig;
	qhandle_t	charSetShader;
	qhandle_t	whiteShader;
	qhandle_t	consoleShader;
} clientStatic_t;

extern	clientStatic_t		cls;

//=============================================================================

extern	vm_t			*cgvm;	// interface to cgame dll or vm
extern	vm_t			*uivm;	// interface to ui dll or vm
extern	refexport_t		re;		// interface to refresh .dll


//
// cvars
//
extern	cvar_t	*cl_nodelta;
extern	cvar_t	*cl_debugMove;
extern	cvar_t	*cl_noprint;
extern	cvar_t	*cl_timegraph;
extern	cvar_t	*cl_maxpackets;
extern	cvar_t	*cl_packetdup;
extern	cvar_t	*cl_shownet;
extern	cvar_t	*cl_showSend;
extern	cvar_t	*cl_timeNudge;
extern	cvar_t	*cl_showTimeDelta;
extern	cvar_t	*cl_freezeDemo;

extern	cvar_t	*cl_yawspeed;
extern	cvar_t	*cl_pitchspeed;
extern	cvar_t	*cl_run;
extern	cvar_t	*cl_anglespeedkey;

extern	cvar_t	*cl_sensitivity;
extern	cvar_t	*cl_freelook;

extern	cvar_t	*cl_mouseAccel;
extern	cvar_t	*cl_showMouseRate;

extern	cvar_t	*m_pitch;
extern	cvar_t	*m_yaw;
extern	cvar_t	*m_forward;
extern	cvar_t	*m_side;
extern	cvar_t	*m_filter;

extern	cvar_t	*cl_timedemo;

extern	cvar_t	*cl_activeAction;

extern	cvar_t	*cl_allowDownload;
extern	cvar_t	*cl_conXOffset;
extern	cvar_t	*cl_inGameVideo;

//=================================================

//
// cl_main
//

void CL_Init (void);
void CL_FlushMemory(void);
void CL_ShutdownAll(void);
void CL_AddReliableCommand( const char *cmd );

void CL_StartHunkUsers( void );

void CL_Disconnect_f (void);
void CL_GetChallengePacket (void);
void CL_Vid_Restart_f( void );
void CL_Snd_Restart_f (void);
void CL_StartDemoLoop( void );
void CL_NextDemo( void );
void CL_ReadDemoMessage( void );

void CL_InitDownloads(void);
void CL_NextDownload(void);

void CL_GetPing( int n, char *buf, int buflen, int *pingtime );
void CL_GetPingInfo( int n, char *buf, int buflen );
void CL_ClearPing( int n );
int CL_GetPingQueueCount( void );

void CL_ShutdownRef( void );
void CL_InitRef( void );
qboolean CL_CDKeyValidate( const char *key, const char *checksum );
int CL_ServerStatus( char *serverAddress, char *serverStatusString, int maxLen );


//
// cl_input
//
typedef struct {
	int			down[2];		// key nums holding it down
	unsigned	downtime;		// msec timestamp
	unsigned	msec;			// msec down this frame if both a down and up happened
	qboolean	active;			// current state
	qboolean	wasPressed;		// set when down, not cleared when up
} kbutton_t;

extern	kbutton_t	in_mlook, in_klook;
extern 	kbutton_t 	in_strafe;
extern 	kbutton_t 	in_speed;

void CL_InitInput (void);
void CL_SendCmd (void);
void CL_ClearState (void);
void CL_ReadPackets (void);

void CL_WritePacket( void );
void IN_CenterView (void);

void CL_VerifyCode( void );

float CL_KeyState (kbutton_t *key);
char *Key_KeynumToString (int keynum);

//
// cl_parse.c
//
extern int cl_connectedToPureServer;

void CL_SystemInfoChanged( void );
void CL_ParseServerMessage( msg_t *msg );

//====================================================================

void	CL_ServerInfoPacket( netadr_t from, msg_t *msg );
void	CL_LocalServers_f( void );
void	CL_GlobalServers_f( void );
void	CL_FavoriteServers_f( void );
void	CL_Ping_f( void );
qboolean CL_UpdateVisiblePings_f( int source );


//
// console
//
void Con_DrawCharacter (int cx, int line, int num);

void Con_CheckResize (void);
void Con_Init (void);
void Con_Clear_f (void);
void Con_ToggleConsole_f (void);
void Con_DrawNotify (void);
void Con_ClearNotify (void);
void Con_RunConsole (void);
void Con_DrawConsole (void);
void Con_PageUp( void );
void Con_PageDown( void );
void Con_Top( void );
void Con_Bottom( void );
void Con_Close( void );


//
// cl_scrn.c
//
void	SCR_Init (void);
void	SCR_UpdateScreen (void);

void	SCR_DebugGraph (float value, int color);

int		SCR_GetBigStringWidth( const char *str );	// returns in virtual 640x480 coordinates

void	SCR_AdjustFrom640( float *x, float *y, float *w, float *h );
void	SCR_FillRect( float x, float y, float width, float height, 
					 const float *color );
void	SCR_DrawPic( float x, float y, float width, float height, qhandle_t hShader );
void	SCR_DrawNamedPic( float x, float y, float width, float height, const char *picname );

void	SCR_DrawBigString( int x, int y, const char *s, float alpha );			// draws a string with embedded color control characters with fade
void	SCR_DrawBigStringColor( int x, int y, const char *s, vec4_t color );	// ignores embedded color control characters
void	SCR_DrawSmallStringExt( int x, int y, const char *string, float *setColor, qboolean forceColor );
void	SCR_DrawSmallChar( int x, int y, int ch );


//
// cl_cin.c
//

void CL_PlayCinematic_f( void );
void SCR_DrawCinematic (void);
void SCR_RunCinematic (void);
void SCR_StopCinematic (void);
int CIN_PlayCinematic( const char *arg0, int xpos, int ypos, int width, int height, int bits);
e_status CIN_StopCinematic(int handle);
e_status CIN_RunCinematic (int handle);
void CIN_DrawCinematic (int handle);
void CIN_SetExtents (int handle, int x, int y, int w, int h);
void CIN_SetLooping (int handle, qboolean loop);
void CIN_UploadCinematic(int handle);
void CIN_CloseAllVideos(void);

//
// cl_cgame.c
//
void CL_InitCGame( void );
void CL_ShutdownCGame( void );
qboolean CL_GameCommand( void );
void CL_CGameRendering( stereoFrame_t stereo );
void CL_SetCGameTime( void );
void CL_FirstSnapshot( void );
void CL_ShaderStateChanged(void);

//
// cl_ui.c
//
void CL_InitUI( void );
void CL_ShutdownUI( void );
int Key_GetCatcher( void );
void Key_SetCatcher( int catcher );
void LAN_LoadCachedServers();
void LAN_SaveServersToCache();


//
// cl_net_chan.c
//
void CL_Netchan_Transmit( netchan_t *chan, msg_t* msg);	//int length, const byte *data );
void CL_Netchan_TransmitNextFragment( netchan_t *chan );
qboolean CL_Netchan_Process( netchan_t *chan, msg_t *msg );