Databases ... bleh. Sounds like a cross-platform killer. Combined with FRIK_FILE and adding some extra persistent fields, you'd really have quite enough room for a mountain-sized heap of creativity with minimal effort.
One opinion. And maybe wrong and narrowminded.
PART I: Engine Tutorial
1. Take stock GLQuake. Much of this will involve enabling QUAKE2 build code. Source:
http://forums.inside3d.com/viewtopic.php?t=1281 (free MS VC+ Express) or
http://www.quakedev.com/files/quake1/q1source.zip (MS Visual Studio 6)
2. hostcmd.c - Change all instances of #ifdef QUAKE2 to "#if 666" to enable except line #615 which I don't see as important. This makes it so upon entering and exiting a level that the state of the level is written to file or read from a file.
3. pr_cmds.c - Make PF_changelevel support a "startspot" for being able to enter a map at different locations. Find this code ...
Code: Select all
/*
==============
PF_changelevel
==============
*/
void PF_changelevel (void)
{
#ifdef QUAKE2
char *s1, *s2;
if (svs.changelevel_issued)
return;
svs.changelevel_issued = true;
s1 = G_STRING(OFS_PARM0);
s2 = G_STRING(OFS_PARM1);
if ((int)pr_global_struct->serverflags & (SFL_NEW_UNIT | SFL_NEW_EPISODE))
Cbuf_AddText (va("changelevel %s %s\n",s1, s2));
else
Cbuf_AddText (va("changelevel2 %s %s\n",s1, s2));
#else
char *s;
// make sure we don't issue two changelevels
if (svs.changelevel_issued)
return;
svs.changelevel_issued = true;
s = G_STRING(OFS_PARM0);
Cbuf_AddText (va("changelevel %s\n",s));
#endif
}
and replace with this code.
Code: Select all
/*
==============
PF_changelevel
==============
*/
void PF_changelevel (void)
{
#if 666
char *s, *s1, *s2;
if (svs.changelevel_issued)
return;
svs.changelevel_issued = true;
#if 0
s1 = G_STRING(OFS_PARM0);
s2 = G_STRING(OFS_PARM1);
#endif
#if 1
s = G_STRING(OFS_PARM0);
COM_StripExtension (s, s1);
s2 = COM_FileExtension (s);
#endif
if ((int)pr_global_struct->serverflags & (SFL_NEW_UNIT | SFL_NEW_EPISODE)) {
Cbuf_AddText (va("changelevel %s %s\n",s1, s2));
}
else {
Cbuf_AddText (va("changelevel2 %s %s\n",s1, s2));
}
#else
char *s;
// make sure we don't issue two changelevels
if (svs.changelevel_issued)
return;
svs.changelevel_issued = true;
s = G_STRING(OFS_PARM0);
Cbuf_AddText (va("changelevel %s\n",s));
#endif
}
3. progdefs.h - Change #ifdef QUAKE2 to #if 666
4. server.h - Change all instances of #ifdef QUAKE2 to #if 666. We are taking the whole Q2'd deal.
5. sv_main.c - On lines 1044, 1090, 1171 change #ifdef QUAKE2 to #if 666 to enable.
6. Open hostcmd.c AGAIN and add the yellow because when you die it needs to restore the state at the beginning of the level as when you arrived instead of the normal restoring the map to as if you just got there ...
#if 666
strcpy(startspot, sv.startspot);
// try to restore the new level
if (LoadGamestate (mapname, startspot))
SV_SpawnServer (mapname, startspot);
else
SV_SpawnServer (mapname, NULL);
#else
SV_SpawnServer (mapname);
#endif
PART II: QuakeC Tutorial
1. Replace defs.qc with this one to mirror the Q2 build global variables. It is also important for the CRC check.
The fields added are startspot, null, basevelocity, drawPercent, gravity, mass, light_level, items2, pitch_speed, dmg, dmgtime, air_finished, pain_finished, radsuit_finished, speed.
Code: Select all
/*
==============================================================================
SOURCE FOR GLOBALVARS_T C STRUCTURE
==============================================================================
*/
//
// system globals
//
entity self;
entity other;
entity world;
float time;
float frametime;
float force_retouch; // force all entities to touch triggers
// next frame. this is needed because
// non-moving things don't normally scan
// for triggers, and when a trigger is
// created (like a teleport trigger), it
// needs to catch everything.
// decremented each frame, so set to 2
// to guarantee everything is touched
string mapname;
string startspot;
float deathmatch;
float coop;
float teamplay;
float serverflags; // propagated from level to level, used to
// keep track of completed episodes
float total_secrets;
float total_monsters;
float found_secrets; // number of secrets found
float killed_monsters; // number of monsters killed
// spawnparms are used to encode information about clients across server
// level changes
float parm1, parm2, parm3, parm4, parm5, parm6, parm7, parm8, parm9, parm10, parm11, parm12, parm13, parm14, parm15, parm16;
//
// global variables set by built in functions
//
vector v_forward, v_up, v_right; // set by makevectors()
// set by traceline / tracebox
float trace_allsolid;
float trace_startsolid;
float trace_fraction;
vector trace_endpos;
vector trace_plane_normal;
float trace_plane_dist;
entity trace_ent;
float trace_inopen;
float trace_inwater;
entity msg_entity; // destination of single entity writes
string null;
//
// required prog functions
//
void() main; // only for testing
void() StartFrame;
void() PlayerPreThink;
void() PlayerPostThink;
void() ClientKill;
void() ClientConnect;
void() PutClientInServer; // call after setting the parm1... parms
void() ClientDisconnect;
void() SetNewParms; // called when a client first connects to
// a server. sets parms so they can be
// saved off for restarts
void() SetChangeParms; // call to set parms for self so they can
// be saved for a level transition
//================================================
void end_sys_globals; // flag for structure dumping
//================================================
/*
==============================================================================
SOURCE FOR ENTVARS_T C STRUCTURE
==============================================================================
*/
//
// system fields (*** = do not set in prog code, maintained by C code)
//
.float modelindex; // *** model index in the precached list
.vector absmin, absmax; // *** origin + mins / maxs
.float ltime; // local time for entity
.float movetype;
.float solid;
.vector origin; // ***
.vector oldorigin; // ***
.vector velocity;
.vector angles;
.vector avelocity;
.vector basevelocity;
.vector punchangle; // temp angle adjust from damage or recoil
.string classname; // spawn function
.string model;
.float frame;
.float skin;
.float effects;
.float drawPercent;
.float gravity;
.float mass;
.float light_level;
.vector mins, maxs; // bounding box extents reletive to origin
.vector size; // maxs - mins
.void() touch;
.void() use;
.void() think;
.void() blocked; // for doors or plats, called when can't push other
.float nextthink;
.entity groundentity;
// stats
.float health;
.float frags;
.float weapon; // one of the IT_SHOTGUN, etc flags
.string weaponmodel;
.float weaponframe;
.float currentammo;
.float ammo_shells, ammo_nails, ammo_rockets, ammo_cells;
.float items; // bit flags
.float items2;
.float takedamage;
.entity chain;
.float deadflag;
.vector view_ofs; // add to origin to get eye point
.float button0; // fire
.float button1; // use
.float button2; // jump
.float impulse; // weapon changes
.float fixangle;
.vector v_angle; // view / targeting angle for players
.float idealpitch; // calculated pitch angle for lookup up slopes
.float pitch_speed;
.string netname;
.entity enemy;
.float flags;
.float colormap;
.float team;
.float max_health; // players maximum health is stored here
.float teleport_time; // don't back up
.float armortype; // save this fraction of incoming damage
.float armorvalue;
.float waterlevel; // 0 = not in, 1 = feet, 2 = wast, 3 = eyes
.float watertype; // a contents value
.float ideal_yaw;
.float yaw_speed;
.entity aiment;
.entity goalentity; // a movetarget or an enemy
.float spawnflags;
.string target;
.string targetname;
// damage is accumulated through a frame. and sent as one single
// message, so the super shotgun doesn't generate huge messages
.float dmg_take;
.float dmg_save;
.entity dmg_inflictor;
.entity owner; // who launched a missile
.vector movedir; // mostly for doors, but also used for waterjump
.string message; // trigger messages
.float sounds; // either a cd track number or sound number
.string noise, noise1, noise2, noise3; // contains names of wavs to play
.float dmg;
.float dmgtime;
.float air_finished;
.float pain_finished;
.float radsuit_finished;
.float speed;
//================================================
void end_sys_fields; // flag for structure dumping
//================================================
/*
==============================================================================
VARS NOT REFERENCED BY C CODE
==============================================================================
*/
//
// constants
//
float FALSE = 0;
float TRUE = 1;
// edict.flags
float FL_FLY = 1;
float FL_SWIM = 2;
float FL_CLIENT = 8; // set for all client edicts
float FL_INWATER = 16; // for enter / leave water splash
float FL_MONSTER = 32;
float FL_GODMODE = 64; // player cheat
float FL_NOTARGET = 128; // player cheat
float FL_ITEM = 256; // extra wide size for bonus items
float FL_ONGROUND = 512; // standing on something
float FL_PARTIALGROUND = 1024; // not all corners are valid
float FL_WATERJUMP = 2048; // player jumping out of water
float FL_JUMPRELEASED = 4096; // for jump debouncing
// edict.movetype values
float MOVETYPE_NONE = 0; // never moves
//float MOVETYPE_ANGLENOCLIP = 1;
//float MOVETYPE_ANGLECLIP = 2;
float MOVETYPE_WALK = 3; // players only
float MOVETYPE_STEP = 4; // discrete, not real time unless fall
float MOVETYPE_FLY = 5;
float MOVETYPE_TOSS = 6; // gravity
float MOVETYPE_PUSH = 7; // no clip to world, push and crush
float MOVETYPE_NOCLIP = 8;
float MOVETYPE_FLYMISSILE = 9; // fly with extra size against monsters
float MOVETYPE_BOUNCE = 10;
float MOVETYPE_BOUNCEMISSILE = 11; // bounce with extra size
// edict.solid values
float SOLID_NOT = 0; // no interaction with other objects
float SOLID_TRIGGER = 1; // touch on edge, but not blocking
float SOLID_BBOX = 2; // touch on edge, block
float SOLID_SLIDEBOX = 3; // touch on edge, but not an onground
float SOLID_BSP = 4; // bsp clip, touch on edge, block
// range values
float RANGE_MELEE = 0;
float RANGE_NEAR = 1;
float RANGE_MID = 2;
float RANGE_FAR = 3;
// deadflag values
float DEAD_NO = 0;
float DEAD_DYING = 1;
float DEAD_DEAD = 2;
float DEAD_RESPAWNABLE = 3;
// takedamage values
float DAMAGE_NO = 0;
float DAMAGE_YES = 1;
float DAMAGE_AIM = 2;
// items
float IT_AXE = 4096;
float IT_SHOTGUN = 1;
float IT_SUPER_SHOTGUN = 2;
float IT_NAILGUN = 4;
float IT_SUPER_NAILGUN = 8;
float IT_GRENADE_LAUNCHER = 16;
float IT_ROCKET_LAUNCHER = 32;
float IT_LIGHTNING = 64;
float IT_EXTRA_WEAPON = 128;
float IT_SHELLS = 256;
float IT_NAILS = 512;
float IT_ROCKETS = 1024;
float IT_CELLS = 2048;
float IT_ARMOR1 = 8192;
float IT_ARMOR2 = 16384;
float IT_ARMOR3 = 32768;
float IT_SUPERHEALTH = 65536;
float IT_KEY1 = 131072;
float IT_KEY2 = 262144;
float IT_INVISIBILITY = 524288;
float IT_INVULNERABILITY = 1048576;
float IT_SUIT = 2097152;
float IT_QUAD = 4194304;
// point content values
float CONTENT_EMPTY = -1;
float CONTENT_SOLID = -2;
float CONTENT_WATER = -3;
float CONTENT_SLIME = -4;
float CONTENT_LAVA = -5;
float CONTENT_SKY = -6;
float STATE_TOP = 0;
float STATE_BOTTOM = 1;
float STATE_UP = 2;
float STATE_DOWN = 3;
vector VEC_ORIGIN = '0 0 0';
vector VEC_HULL_MIN = '-16 -16 -24';
vector VEC_HULL_MAX = '16 16 32';
vector VEC_HULL2_MIN = '-32 -32 -24';
vector VEC_HULL2_MAX = '32 32 64';
// protocol bytes
float SVC_TEMPENTITY = 23;
float SVC_KILLEDMONSTER = 27;
float SVC_FOUNDSECRET = 28;
float SVC_INTERMISSION = 30;
float SVC_FINALE = 31;
float SVC_CDTRACK = 32;
float SVC_SELLSCREEN = 33;
float TE_SPIKE = 0;
float TE_SUPERSPIKE = 1;
float TE_GUNSHOT = 2;
float TE_EXPLOSION = 3;
float TE_TAREXPLOSION = 4;
float TE_LIGHTNING1 = 5;
float TE_LIGHTNING2 = 6;
float TE_WIZSPIKE = 7;
float TE_KNIGHTSPIKE = 8;
float TE_LIGHTNING3 = 9;
float TE_LAVASPLASH = 10;
float TE_TELEPORT = 11;
// sound channels
// channel 0 never willingly overrides
// other channels (1-7) allways override a playing sound on that channel
float CHAN_AUTO = 0;
float CHAN_WEAPON = 1;
float CHAN_VOICE = 2;
float CHAN_ITEM = 3;
float CHAN_BODY = 4;
float ATTN_NONE = 0;
float ATTN_NORM = 1;
float ATTN_IDLE = 2;
float ATTN_STATIC = 3;
// update types
float UPDATE_GENERAL = 0;
float UPDATE_STATIC = 1;
float UPDATE_BINARY = 2;
float UPDATE_TEMP = 3;
// entity effects
float EF_BRIGHTFIELD = 1;
float EF_MUZZLEFLASH = 2;
float EF_BRIGHTLIGHT = 4;
float EF_DIMLIGHT = 8;
// messages
float MSG_BROADCAST = 0; // unreliable to all
float MSG_ONE = 1; // reliable to one (msg_entity)
float MSG_ALL = 2; // reliable to all
float MSG_INIT = 3; // write to the init string
//================================================
//
// globals
//
float movedist;
float gameover; // set when a rule exits
string string_null; // null string, nothing should be held here
float empty_float;
entity newmis; // launch_spike sets this after spawning it
entity activator; // the entity that activated a trigger or brush
entity damage_attacker; // set by T_Damage
float framecount;
float skill;
//================================================
//
// world fields (FIXME: make globals)
//
.string wad;
.string map;
.float worldtype; // 0=medieval 1=metal 2=base
//================================================
.string killtarget;
//
// quakeed fields
//
.float light_lev; // not used by game, but parsed by light util
.float style;
//
// monster ai
//
.void() th_stand;
.void() th_walk;
.void() th_run;
.void() th_missile;
.void() th_melee;
.void(entity attacker, float damage) th_pain;
.void() th_die;
.entity oldenemy; // mad at this player before taking damage
.float speed;
.float lefty;
.float search_time;
.float attack_state;
float AS_STRAIGHT = 1;
float AS_SLIDING = 2;
float AS_MELEE = 3;
float AS_MISSILE = 4;
//
// player only fields
//
.float walkframe;
.float attack_finished;
.float pain_finished;
.float invincible_finished;
.float invisible_finished;
.float super_damage_finished;
.float radsuit_finished;
.float invincible_time, invincible_sound;
.float invisible_time, invisible_sound;
.float super_time, super_sound;
.float rad_time;
.float fly_sound;
.float axhitme;
.float show_hostile; // set to time+0.2 whenever a client fires a
// weapon or takes damage. Used to alert
// monsters that otherwise would let the player go
.float jump_flag; // player jump flag
.float swim_flag; // player swimming sound flag
.float air_finished; // when time > air_finished, start drowning
.float bubble_count; // keeps track of the number of bubbles
.string deathtype; // keeps track of how the player died
//
// object stuff
//
.string mdl;
.vector mangle; // angle at start
.vector oldorigin; // only used by secret door
.float t_length, t_width;
//
// doors, etc
//
.vector dest, dest1, dest2;
.float wait; // time from firing to restarting
.float delay; // time from activation to firing
.entity trigger_field; // door's trigger entity
.string noise4;
//
// monsters
//
.float pausetime;
.entity movetarget;
//
// doors
//
.float aflag;
.float dmg; // damage done by door when hit
//
// misc
//
.float cnt; // misc flag
//
// subs
//
.void() think1;
.vector finaldest, finalangle;
//
// triggers
//
.float count; // for counting triggers
//
// plats / doors / buttons
//
.float lip;
.float state;
.vector pos1, pos2; // top and bottom positions
.float height;
//
// sounds
//
.float waitmin, waitmax;
.float distance;
.float volume;
//===========================================================================
//
// builtin functions
//
void(vector ang) makevectors = #1; // sets v_forward, etc globals
void(entity e, vector o) setorigin = #2;
void(entity e, string m) setmodel = #3; // set movetype and solid first
void(entity e, vector min, vector max) setsize = #4;
// #5 was removed
void() break = #6;
float() random = #7; // returns 0 - 1
void(entity e, float chan, string samp, float vol, float atten) sound = #8;
vector(vector v) normalize = #9;
void(string e) error = #10;
void(string e) objerror = #11;
float(vector v) vlen = #12;
float(vector v) vectoyaw = #13;
entity() spawn = #14;
void(entity e) remove = #15;
// sets trace_* globals
// nomonsters can be:
// An entity will also be ignored for testing if forent == test,
// forent->owner == test, or test->owner == forent
// a forent of world is ignored
void(vector v1, vector v2, float nomonsters, entity forent) traceline = #16;
entity() checkclient = #17; // returns a client to look for
entity(entity start, .string fld, string match) find = #18;
string(string s) precache_sound = #19;
string(string s) precache_model = #20;
void(entity client, string s)stuffcmd = #21;
entity(vector org, float rad) findradius = #22;
void(string s) bprint = #23;
void(entity client, string s) sprint = #24;
void(string s) dprint = #25;
string(float f) ftos = #26;
string(vector v) vtos = #27;
void() coredump = #28; // prints all edicts
void() traceon = #29; // turns statment trace on
void() traceoff = #30;
void(entity e) eprint = #31; // prints an entire edict
float(float yaw, float dist) walkmove = #32; // returns TRUE or FALSE
// #33 was removed
float(float yaw, float dist) droptofloor= #34; // TRUE if landed on floor
void(float style, string value) lightstyle = #35;
float(float v) rint = #36; // round to nearest int
float(float v) floor = #37; // largest integer <= v
float(float v) ceil = #38; // smallest integer >= v
// #39 was removed
float(entity e) checkbottom = #40; // true if self is on ground
float(vector v) pointcontents = #41; // returns a CONTENT_*
// #42 was removed
float(float f) fabs = #43;
vector(entity e, float speed) aim = #44; // returns the shooting vector
float(string s) cvar = #45; // return cvar.value
void(string s) localcmd = #46; // put string into local que
entity(entity e) nextent = #47; // for looping through all ents
void(vector o, vector d, float color, float count) particle = #48;// start a particle effect
void() ChangeYaw = #49; // turn towards self.ideal_yaw
// at self.yaw_speed
// #50 was removed
vector(vector v) vectoangles = #51;
//
// direct client message generation
//
void(float to, float f) WriteByte = #52;
void(float to, float f) WriteChar = #53;
void(float to, float f) WriteShort = #54;
void(float to, float f) WriteLong = #55;
void(float to, float f) WriteCoord = #56;
void(float to, float f) WriteAngle = #57;
void(float to, string s) WriteString = #58;
void(float to, entity s) WriteEntity = #59;
//
// broadcast client message generation
//
// void(float f) bWriteByte = #59;
// void(float f) bWriteChar = #60;
// void(float f) bWriteShort = #61;
// void(float f) bWriteLong = #62;
// void(float f) bWriteCoord = #63;
// void(float f) bWriteAngle = #64;
// void(string s) bWriteString = #65;
// void(entity e) bWriteEntity = #66;
void(float step) movetogoal = #67;
string(string s) precache_file = #68; // no effect except for -copy
void(entity e) makestatic = #69;
void(string s) changelevel = #70;
//#71 was removed
void(string var, string val) cvar_set = #72; // sets cvar.value
void(entity client, string s) centerprint = #73; // sprint, but in middle
void(vector pos, string samp, float vol, float atten) ambientsound = #74;
string(string s) precache_model2 = #75; // registered version only
string(string s) precache_sound2 = #76; // registered version only
string(string s) precache_file2 = #77; // registered version only
void(entity e) setspawnparms = #78; // set parm1... to the
// values at level start
// for coop respawn
//============================================================================
//
// subs.qc
//
void(vector tdest, float tspeed, void() func) SUB_CalcMove;
void(entity ent, vector tdest, float tspeed, void() func) SUB_CalcMoveEnt;
void(vector destangle, float tspeed, void() func) SUB_CalcAngleMove;
void() SUB_CalcMoveDone;
void() SUB_CalcAngleMoveDone;
void() SUB_Null;
void() SUB_UseTargets;
void() SUB_Remove;
//
// combat.qc
//
void(entity targ, entity inflictor, entity attacker, float damage) T_Damage;
float (entity e, float healamount, float ignore) T_Heal; // health function
float(entity targ, entity inflictor) CanDamage;
2. Now find the following:
Code: Select all
spot = find (world, classname, "info_player_start");
if (!spot)
error ("PutClientInServer: no info_player_start on level");
return spot;
And replace with ...
(This should be rewritten to loop through all the info_player_start entities and then match the startspot ... but I was lazy and only had 5 minutes when working with the qc).
Code: Select all
if (!startspot) {
// No startspot specified, use default
spot = find (world, targetname, "default");
} else {
spot = find (world, targetname, startspot);
// Looking for info_player_start named startspot
}
if (!spot)
error ("PutClientInServer: no applicable spawn point");
PART III: Mapping Differences
You can now do ...
{
"classname" "trigger_changelevel"
"spawnflags" "1" // Important, a normal trigger_changelevel removes itself
"map" "map1.spawn2" // Specify map plus spawn point name
...
}
Which when used would spawn you at:
{
"classname" "info_player_start"
"targetname" "spawn2" // This is the name of this spawn point
"origin" "512 -416 192"
}
The general idea is that you now can have multiple info_player_start spots as multiple entry points into a map.
With every info_player_start you should specify the targetname as the name of the spawn point.
With every trigger_changelevel, you need to set the flag for no intermission or the trigger_changelevel will remove itself.
Quick with room for improvement and some need for polish, but very much functional and fun to play around with.