2 Copyright (C) 1996-1997 Id Software, Inc.
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.
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.
13 See the GNU General Public License for more details.
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.
25 #include "matrixlib.h"
27 // LordHavoc: 256 dynamic lights
28 #define MAX_DLIGHTS 256
29 // LordHavoc: this affects the lighting scale of the whole game
30 #define LIGHTOFFSET 1024.0f
31 // max lights shining on one entity
32 #define MAXENTLIGHTS 128
34 // flags for rtlight rendering
35 #define LIGHTFLAG_NORMALMODE 1
36 #define LIGHTFLAG_REALTIMEMODE 2
38 extern int cl_max_entities;
39 extern int cl_max_static_entities;
40 extern int cl_max_temp_entities;
41 extern int cl_max_effects;
42 extern int cl_max_beams;
44 typedef struct effect_s
53 // these are for interpolation
63 // draw this as lightning polygons, or a model?
65 struct model_s *model;
68 // if this beam is owned by an entity, this is the beam start relative to
69 // that entity's matrix for per frame start updates
72 // indicates whether relativestart is valid
73 int relativestartvalid;
77 typedef struct rtlight_s
79 // shadow volumes are done entirely in model space, so there are no matrices for dealing with them... they just use the origin
81 // note that the world to light matrices are inversely scaled (divided) by lightradius
84 // matrix for transforming world coordinates to light filter coordinates
85 matrix4x4_t matrix_worldtolight;
86 // typically 1 1 1, can be lower (dim) or higher (overbright)
88 // size of the light (remove?)
92 // light style to monitor for brightness
94 // whether light should render shadows
96 // intensity of corona to render
98 // radius scale of corona to render (1.0 means same as light radius)
99 vec_t coronasizescale;
100 // ambient intensity to render
102 // diffuse intensity to render
104 // specular intensity to render
109 // generated properties
110 // used only for shadow volumes
117 // squared cullradius
120 // lightmap renderer stuff (remove someday!)
121 // the size of the light
122 vec_t lightmap_cullradius;
123 // the size of the light, squared
124 vec_t lightmap_cullradius2;
125 // the brightness of the light
126 vec3_t lightmap_light;
127 // to avoid sudden brightness change at cullradius, subtract this
128 vec_t lightmap_subtract;
131 // true if this light should be compiled as a static light
133 // true if this is a compiled world light, cleared if the light changes
135 // premade shadow volumes and lit surfaces to render for world entity
136 shadowmesh_t *static_meshchain_shadow;
137 shadowmesh_t *static_meshchain_light;
138 // used for visibility testing (more exact than bbox)
140 int static_numleafpvsbytes;
141 int *static_leaflist;
142 qbyte *static_leafpvs;
143 // surfaces seen by light
144 int static_numsurfaces;
145 int *static_surfacelist;
149 typedef struct dlight_s
151 // destroy light after this time
154 // the entity that owns this light (can be NULL)
156 struct entity_render_s *ent;
158 // (worldlight: saved to .rtlights file)
160 // worldlight orientation
162 // (worldlight: saved to .rtlights file)
164 // dlight orientation/scaling/location
168 // (worldlight: saved to .rtlights file)
170 // cubemap number to use on this light
173 // cubemap name to use on this light
175 // (worldlight: saved to .rtlights file)
176 char cubemapname[64];
177 // make light flash while selected
180 // brightness (not really radius anymore)
181 // (worldlight: saved to .rtlights file)
183 // drop radius this much each second
186 // light style which controls intensity of this light
187 // (worldlight: saved to .rtlights file)
190 // (worldlight: saved to .rtlights file)
193 // (worldlight: saved to .rtlights file)
195 // radius scale of corona to render (1.0 means same as light radius)
196 // (worldlight: saved to .rtlights file)
197 vec_t coronasizescale;
198 // ambient intensity to render
199 // (worldlight: saved to .rtlights file)
201 // diffuse intensity to render
202 // (worldlight: saved to .rtlights file)
204 // specular intensity to render
205 // (worldlight: saved to .rtlights file)
208 // (worldlight: saved to .rtlights file)
210 // linked list of world lights
212 struct dlight_s *next;
213 // embedded rtlight struct for renderer
219 typedef struct frameblend_s
226 // LordHavoc: this struct is intended for the renderer but some fields are
227 // used by the client.
228 typedef struct entity_render_s
234 // transform matrix for model to world
236 // transform matrix for world to model
237 matrix4x4_t inversematrix;
238 // opacity (alpha) of the model
240 // size the model is shown
245 // current uninterpolated animation frame (for things which do not use interpolation)
247 // entity shirt and pants colors
249 // light, particles, etc
256 // colormod tinting of models
259 // interpolated animation
261 // frame that the model is interpolating from
263 // frame that the model is interpolating to
265 // interpolation factor, usually computed from frame2time
267 // time frame1 began playing (for framegroup animations)
269 // time frame2 began playing (for framegroup animations)
272 // calculated by the renderer (but not persistent)
274 // if visframe == r_framecount, it is visible
276 // calculated during R_AddModelEntities
278 // 4 frame numbers (-1 if not used) and their blending scalers (0-1), if interpolation is not desired, use frame instead
279 frameblend_t frameblend[4];
281 // caching results of static light traces (this is semi-persistent)
282 double entlightstime;
283 vec3_t entlightsorigin;
286 unsigned short entlights[MAXENTLIGHTS];
290 typedef struct entity_persistent_s
299 // muzzleflash fading
302 // interpolated movement
304 // start time of move
306 // time difference from start to end of move
308 // the move itself, start and end
316 typedef struct entity_s
318 // baseline state (default values)
319 entity_state_t state_baseline;
320 // previous state (interpolating from this)
321 entity_state_t state_previous;
322 // current state (interpolating to this)
323 entity_state_t state_current;
325 // used for regenerating parts of render
326 entity_persistent_t persistent;
328 // the only data the renderer should know about
329 entity_render_t render;
337 // intended velocities
342 vec3_t cursor_screen;
345 vec3_t cursor_impact;
346 vec3_t cursor_normal;
347 vec_t cursor_fraction;
348 int cursor_entitynumber;
360 char map[MAX_STYLESTRING];
365 char name[MAX_SCOREBOARDNAME];
367 int colors; // two 4 bit fields
373 int percent; // 0-256
376 #define CSHIFT_CONTENTS 0
377 #define CSHIFT_DAMAGE 1
378 #define CSHIFT_BONUS 2
379 #define CSHIFT_POWERUP 3
380 #define CSHIFT_VCSHIFT 4
381 #define NUM_CSHIFTS 5
383 #define NAME_LENGTH 64
387 // client_state_t should hold all pieces of the client state
390 #define SIGNONS 4 // signon messages to receive before connected
393 #define MAX_DEMONAME 16
397 ca_dedicated, // a dedicated server with no ability to start a client
398 ca_disconnected, // full screen console with no connection
399 ca_connected // valid netcon, talking to a server
404 // the client_static_t structure is persistent through an arbitrary number
405 // of server connections
412 // -1 = don't play demos
414 // list of demos in loop
415 char demos[MAX_DEMOS][MAX_DEMONAME];
416 // the actively playing demo (set by CL_PlayDemo_f)
419 // demo recording info must be here, because record is started before
420 // entering a map (and clearing client_state_t)
421 qboolean demorecording;
422 qboolean demoplayback;
424 // -1 = use normal cd track
427 // to meter out one message a frame
429 // host_framecount at start
431 // realtime at second frame of timedemo (LordHavoc: changed to double)
433 // LordHavoc: for measuring maxfps
434 double td_minframetime;
435 // LordHavoc: for measuring minfps
436 double td_maxframetime;
437 // LordHavoc: pausedemo
440 qboolean connect_trying;
441 int connect_remainingtries;
442 double connect_nextsendtime;
443 lhnetsocket_t *connect_mysocket;
444 lhnetaddress_t connect_address;
446 // connection information
449 // network connection
451 // writing buffer to send to server
453 qbyte message_buf[1024];
457 extern client_static_t cls;
459 typedef struct client_movementqueue_s
469 client_movementqueue_t;
472 // the client_state_t structure is wiped completely at every
477 // true if playing in a local game and no one else is connected
480 // when connecting to the server throw out the first couple move messages
481 // so the player doesn't accidentally do something the first frame
484 // send a clc_nop periodically until connected
487 // current input to send to the server
490 // information for local display
492 int stats[MAX_CL_STATS];
493 // last known inventory bit flags, for blinking
495 // cl.time of acquiring item, for blinking
496 float item_gettime[32];
497 // last known STAT_ACTIVEWEAPON
499 // cl.time of changing STAT_ACTIVEWEAPON
501 // use pain anim frame if cl.time < this
504 // color shifts for damage, powerups
505 cshift_t cshifts[NUM_CSHIFTS];
507 cshift_t prev_cshifts[NUM_CSHIFTS];
509 // the client maintains its own idea of view angles, which are
510 // sent to the server each frame. The server sets punchangle when
511 // the view is temporarily offset, and an angle reset commands at the start
512 // of each level and after teleporting.
514 // mviewangles is read from demo
515 // viewangles is either client controlled or lerped from mviewangles
516 vec3_t mviewangles[2], viewangles;
517 // update by server, used by qc to do weapon recoil
518 vec3_t mpunchangle[2], punchangle;
519 // update by server, can be used by mods to kick view around
520 vec3_t mpunchvector[2], punchvector;
521 // update by server, used for lean+bob (0 is newest)
522 vec3_t mvelocity[2], velocity;
523 // update by server, can be used by mods for zooming
524 vec_t mviewzoom[2], viewzoom;
526 // client movement simulation
527 // these fields are only updated by CL_ClientMovement (called by CL_SendMove after parsing each network packet)
529 // indicates the queue has been updated and should be replayed
530 qboolean movement_replay;
531 // simulated data (this is valid even if cl.movement is false)
532 vec3_t movement_origin;
533 vec3_t movement_oldorigin;
534 vec3_t movement_velocity;
535 // queue of proposed moves
536 int movement_numqueue;
537 client_movementqueue_t movement_queue[64];
539 int servermovesequence;
541 // pitch drifting vars
548 // local amount for smoothing stepups
556 // don't change view angle, full screen, etc
558 // latched at intermission start
561 // the timestamp of the last two messages
564 // clients view of time, time should be between mtime[0] and mtime[1] to
565 // generate a lerp point for other data, oldtime is the previous frame's
566 // value of time, frametime is the difference between time and oldtime
567 double time, oldtime, frametime;
569 // copy of realtime from last recieved message, for net trouble icon
570 float last_received_message;
572 // information that is static for the entire time connected to a server
573 struct model_s *model_precache[MAX_MODELS];
574 struct sfx_s *sound_precache[MAX_SOUNDS];
576 // for display on solo scoreboard
578 // cl_entitites[cl.viewentity] = player
580 // the real player entity (normally same as viewentity,
581 // different than viewentity if mod uses chasecam or other tricks)
583 // max players that can be in this game
585 // type of game (deathmatch, coop, singleplayer)
588 // models and sounds used by engine code (particularly cl_parse.c)
590 model_t *model_bolt2;
591 model_t *model_bolt3;
594 sfx_t *sfx_knighthit;
601 // refresh related state
603 // cl_entitites[0].model
604 struct model_s *worldmodel;
610 int cdtrack, looptrack;
615 scoreboard_t *scores;
617 // protocol version of the server we're connected to
618 protocolversion_t protocol;
620 // entity database stuff
621 // latest received entity frame numbers
622 #define LATESTFRAMENUMS 3
623 int latestframenums[LATESTFRAMENUMS];
624 entityframe_database_t *entitydatabase;
625 entityframe4_database_t *entitydatabase4;
632 extern cvar_t cl_name;
633 extern cvar_t cl_color;
634 extern cvar_t cl_rate;
635 extern cvar_t cl_pmodel;
636 extern cvar_t cl_playermodel;
637 extern cvar_t cl_playerskin;
639 extern cvar_t cl_upspeed;
640 extern cvar_t cl_forwardspeed;
641 extern cvar_t cl_backspeed;
642 extern cvar_t cl_sidespeed;
644 extern cvar_t cl_movespeedkey;
646 extern cvar_t cl_yawspeed;
647 extern cvar_t cl_pitchspeed;
649 extern cvar_t cl_anglespeedkey;
651 extern cvar_t cl_autofire;
653 extern cvar_t cl_shownet;
654 extern cvar_t cl_nolerp;
656 extern cvar_t cl_pitchdriftspeed;
657 extern cvar_t lookspring;
658 extern cvar_t lookstrafe;
659 extern cvar_t sensitivity;
661 extern cvar_t freelook;
663 extern cvar_t m_pitch;
665 extern cvar_t m_forward;
666 extern cvar_t m_side;
668 extern cvar_t r_draweffects;
670 extern cvar_t cl_explosions_alpha_start;
671 extern cvar_t cl_explosions_alpha_end;
672 extern cvar_t cl_explosions_size_start;
673 extern cvar_t cl_explosions_size_end;
674 extern cvar_t cl_explosions_lifetime;
675 extern cvar_t cl_stainmaps;
676 extern cvar_t cl_stainmaps_clearonload;
678 extern cvar_t cl_prydoncursor;
680 extern vec3_t cl_playerstandmins;
681 extern vec3_t cl_playerstandmaxs;
682 extern vec3_t cl_playercrouchmins;
683 extern vec3_t cl_playercrouchmaxs;
685 // these are updated by CL_ClearState
686 extern int cl_num_entities;
687 extern int cl_num_static_entities;
688 extern int cl_num_temp_entities;
689 extern int cl_num_brushmodel_entities;
691 extern mempool_t *cl_mempool;
692 extern entity_t *cl_entities;
693 extern qbyte *cl_entities_active;
694 extern entity_t *cl_static_entities;
695 extern entity_t *cl_temp_entities;
696 extern int *cl_brushmodel_entities;
697 extern cl_effect_t *cl_effects;
698 extern beam_t *cl_beams;
699 extern dlight_t *cl_dlights;
700 extern lightstyle_t *cl_lightstyle;
703 extern client_state_t cl;
705 extern void CL_AllocDlight (entity_render_t *ent, matrix4x4_t *matrix, float radius, float red, float green, float blue, float decay, float lifetime, int cubemapnum, int style, int shadowenable, vec_t corona, vec_t coronasizescale, vec_t ambientscale, vec_t diffusescale, vec_t specularscale, int flags);
706 extern void CL_DecayLights (void);
708 //=============================================================================
714 void CL_Shutdown (void);
717 void CL_EstablishConnection(const char *host);
719 void CL_Disconnect (void);
720 void CL_Disconnect_f (void);
722 void CL_BoundingBoxForEntity(entity_render_t *ent);
724 extern cvar_t cl_beams_polygons;
725 extern cvar_t cl_beams_relative;
726 extern cvar_t cl_beams_lightatend;
733 int down[2]; // key nums holding it down
734 int state; // low bit is down state
738 extern kbutton_t in_mlook, in_klook;
739 extern kbutton_t in_strafe;
740 extern kbutton_t in_speed;
742 void CL_InitInput (void);
743 void CL_SendCmd (void);
744 void CL_SendMove (void);
746 void CL_ValidateState(entity_state_t *s);
747 void CL_MoveLerpEntityStates(entity_t *ent);
748 void CL_LerpUpdate(entity_t *e);
749 void CL_ParseTEnt (void);
750 void CL_RelinkBeams (void);
752 void CL_ClearTempEntities (void);
753 entity_t *CL_NewTempEntity (void);
755 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate);
757 void CL_ClearState (void);
758 void CL_ExpandEntities(int num);
761 int CL_ReadFromServer (void);
762 void CL_WriteToServer (void);
764 extern qboolean cl_ignoremousemove;
767 float CL_KeyState (kbutton_t *key);
768 const char *Key_KeynumToString (int keynum);
769 int Key_StringToKeynum (const char *str);
774 void CL_StopPlayback(void);
775 void CL_ReadDemoMessage(void);
776 void CL_WriteDemoMessage(void);
778 void CL_NextDemo(void);
779 void CL_Stop_f(void);
780 void CL_Record_f(void);
781 void CL_PlayDemo_f(void);
782 void CL_TimeDemo_f(void);
787 void CL_Parse_Init(void);
788 void CL_Parse_Shutdown(void);
789 void CL_ParseServerMessage(void);
790 void CL_Parse_DumpPacket(void);
795 void V_StartPitchDrift (void);
796 void V_StopPitchDrift (void);
799 float V_CalcRoll (vec3_t angles, vec3_t velocity);
800 void V_UpdateBlends (void);
801 void V_ParseDamage (void);
807 extern cvar_t cl_particles;
808 extern cvar_t cl_particles_quality;
809 extern cvar_t cl_particles_size;
810 extern cvar_t cl_particles_bloodshowers;
811 extern cvar_t cl_particles_blood;
812 extern cvar_t cl_particles_blood_alpha;
813 extern cvar_t cl_particles_blood_bloodhack;
814 extern cvar_t cl_particles_bulletimpacts;
815 extern cvar_t cl_particles_explosions_bubbles;
816 extern cvar_t cl_particles_explosions_smoke;
817 extern cvar_t cl_particles_explosions_sparks;
818 extern cvar_t cl_particles_explosions_shell;
819 extern cvar_t cl_particles_smoke;
820 extern cvar_t cl_particles_smoke_alpha;
821 extern cvar_t cl_particles_smoke_alphafade;
822 extern cvar_t cl_particles_sparks;
823 extern cvar_t cl_particles_bubbles;
824 extern cvar_t cl_decals;
825 extern cvar_t cl_decals_time;
826 extern cvar_t cl_decals_fadetime;
828 void CL_Particles_Clear(void);
829 void CL_Particles_Init(void);
830 void CL_Particles_Shutdown(void);
832 void CL_ParseParticleEffect (void);
833 void CL_RunParticleEffect (vec3_t org, vec3_t dir, int color, int count);
834 void CL_RocketTrail (vec3_t start, vec3_t end, int type, int color, entity_t *ent);
835 void CL_SparkShower (vec3_t org, vec3_t dir, int count, vec_t gravityscale);
836 void CL_Smoke (vec3_t org, vec3_t dir, int count);
837 void CL_BulletMark (vec3_t org);
838 void CL_PlasmaBurn (vec3_t org);
839 void CL_BloodPuff (vec3_t org, vec3_t vel, int count);
840 void CL_Stardust (vec3_t mins, vec3_t maxs, int count);
841 void CL_FlameCube (vec3_t mins, vec3_t maxs, int count);
842 void CL_Flames (vec3_t org, vec3_t vel, int count);
843 void CL_BloodShower (vec3_t mins, vec3_t maxs, float velspeed, int count);
844 void CL_ParticleCube (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int gravity, int randomvel);
845 void CL_ParticleRain (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int type);
846 void CL_EntityParticles (entity_t *ent);
847 void CL_BlobExplosion (vec3_t org);
848 void CL_ParticleExplosion (vec3_t org);
849 void CL_ParticleExplosion2 (vec3_t org, int colorStart, int colorLength);
850 void CL_LavaSplash (vec3_t org);
851 void CL_TeleportSplash (vec3_t org);
852 void CL_BeamParticle (const vec3_t start, const vec3_t end, vec_t radius, float red, float green, float blue, float alpha, float lifetime);
853 void CL_Tei_Smoke(const vec3_t pos, const vec3_t dir, int count);
854 void CL_Tei_PlasmaHit(const vec3_t pos, const vec3_t dir, int count);
855 void CL_MoveParticles(void);
856 void R_MoveExplosions(void);
857 void R_NewExplosion(vec3_t org);
859 #include "cl_screen.h"
864 int x, y, width, height;
867 // these are set for water warping before
868 // fov_x/fov_y are calculated
869 float fovscale_x, fovscale_y;
872 matrix4x4_t viewentitymatrix;
874 // which color components to allow (for anaglyph glasses)
877 // fullscreen color blend
880 // whether to call S_ExtraUpdate during render to reduce sound chop
881 qboolean extraupdate;
883 // client gameworld time for rendering time based effects
887 entity_render_t *worldentity;
889 // same as worldentity->model
892 // renderable entities (excluding world)
893 entity_render_t **entities;
897 // 2D art drawing queue
898 // TODO: get rid of this
901 int maxdrawqueuesize;