mirror of https://github.com/ioquake/ioq3.git
667 lines
14 KiB
C
667 lines
14 KiB
C
/*
|
|
===========================================================================
|
|
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 Quake III Arena source code; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
===========================================================================
|
|
*/
|
|
//
|
|
// g_utils.c -- misc utility functions for game module
|
|
|
|
#include "g_local.h"
|
|
|
|
typedef struct {
|
|
char oldShader[MAX_QPATH];
|
|
char newShader[MAX_QPATH];
|
|
float timeOffset;
|
|
} shaderRemap_t;
|
|
|
|
#define MAX_SHADER_REMAPS 128
|
|
|
|
int remapCount = 0;
|
|
shaderRemap_t remappedShaders[MAX_SHADER_REMAPS];
|
|
|
|
void AddRemap(const char *oldShader, const char *newShader, float timeOffset) {
|
|
int i;
|
|
|
|
for (i = 0; i < remapCount; i++) {
|
|
if (Q_stricmp(oldShader, remappedShaders[i].oldShader) == 0) {
|
|
// found it, just update this one
|
|
strcpy(remappedShaders[i].newShader,newShader);
|
|
remappedShaders[i].timeOffset = timeOffset;
|
|
return;
|
|
}
|
|
}
|
|
if (remapCount < MAX_SHADER_REMAPS) {
|
|
strcpy(remappedShaders[remapCount].newShader,newShader);
|
|
strcpy(remappedShaders[remapCount].oldShader,oldShader);
|
|
remappedShaders[remapCount].timeOffset = timeOffset;
|
|
remapCount++;
|
|
}
|
|
}
|
|
|
|
const char *BuildShaderStateConfig(void) {
|
|
static char buff[MAX_STRING_CHARS*4];
|
|
char out[(MAX_QPATH * 2) + 5];
|
|
int i;
|
|
|
|
memset(buff, 0, MAX_STRING_CHARS);
|
|
for (i = 0; i < remapCount; i++) {
|
|
Com_sprintf(out, (MAX_QPATH * 2) + 5, "%s=%s:%5.2f@", remappedShaders[i].oldShader, remappedShaders[i].newShader, remappedShaders[i].timeOffset);
|
|
Q_strcat( buff, sizeof( buff ), out);
|
|
}
|
|
return buff;
|
|
}
|
|
|
|
/*
|
|
=========================================================================
|
|
|
|
model / sound configstring indexes
|
|
|
|
=========================================================================
|
|
*/
|
|
|
|
/*
|
|
================
|
|
G_FindConfigstringIndex
|
|
|
|
================
|
|
*/
|
|
int G_FindConfigstringIndex( char *name, int start, int max, qboolean create ) {
|
|
int i;
|
|
char s[MAX_STRING_CHARS];
|
|
|
|
if ( !name || !name[0] ) {
|
|
return 0;
|
|
}
|
|
|
|
for ( i=1 ; i<max ; i++ ) {
|
|
trap_GetConfigstring( start + i, s, sizeof( s ) );
|
|
if ( !s[0] ) {
|
|
break;
|
|
}
|
|
if ( !strcmp( s, name ) ) {
|
|
return i;
|
|
}
|
|
}
|
|
|
|
if ( !create ) {
|
|
return 0;
|
|
}
|
|
|
|
if ( i == max ) {
|
|
G_Error( "G_FindConfigstringIndex: overflow" );
|
|
}
|
|
|
|
trap_SetConfigstring( start + i, name );
|
|
|
|
return i;
|
|
}
|
|
|
|
|
|
int G_ModelIndex( char *name ) {
|
|
return G_FindConfigstringIndex (name, CS_MODELS, MAX_MODELS, qtrue);
|
|
}
|
|
|
|
int G_SoundIndex( char *name ) {
|
|
return G_FindConfigstringIndex (name, CS_SOUNDS, MAX_SOUNDS, qtrue);
|
|
}
|
|
|
|
//=====================================================================
|
|
|
|
|
|
/*
|
|
================
|
|
G_TeamCommand
|
|
|
|
Broadcasts a command to only a specific team
|
|
================
|
|
*/
|
|
void G_TeamCommand( team_t team, char *cmd ) {
|
|
int i;
|
|
|
|
for ( i = 0 ; i < level.maxclients ; i++ ) {
|
|
if ( level.clients[i].pers.connected == CON_CONNECTED ) {
|
|
if ( level.clients[i].sess.sessionTeam == team ) {
|
|
trap_SendServerCommand( i, va("%s", cmd ));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
G_Find
|
|
|
|
Searches all active entities for the next one that holds
|
|
the matching string at fieldofs (use the FOFS() macro) in the structure.
|
|
|
|
Searches beginning at the entity after from, or the beginning if NULL
|
|
NULL will be returned if the end of the list is reached.
|
|
|
|
=============
|
|
*/
|
|
gentity_t *G_Find (gentity_t *from, int fieldofs, const char *match)
|
|
{
|
|
char *s;
|
|
|
|
if (!from)
|
|
from = g_entities;
|
|
else
|
|
from++;
|
|
|
|
for ( ; from < &g_entities[level.num_entities] ; from++)
|
|
{
|
|
if (!from->inuse)
|
|
continue;
|
|
s = *(char **) ((byte *)from + fieldofs);
|
|
if (!s)
|
|
continue;
|
|
if (!Q_stricmp (s, match))
|
|
return from;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
G_PickTarget
|
|
|
|
Selects a random entity from among the targets
|
|
=============
|
|
*/
|
|
#define MAXCHOICES 32
|
|
|
|
gentity_t *G_PickTarget (char *targetname)
|
|
{
|
|
gentity_t *ent = NULL;
|
|
int num_choices = 0;
|
|
gentity_t *choice[MAXCHOICES];
|
|
|
|
if (!targetname)
|
|
{
|
|
G_Printf("G_PickTarget called with NULL targetname\n");
|
|
return NULL;
|
|
}
|
|
|
|
while(1)
|
|
{
|
|
ent = G_Find (ent, FOFS(targetname), targetname);
|
|
if (!ent)
|
|
break;
|
|
choice[num_choices++] = ent;
|
|
if (num_choices == MAXCHOICES)
|
|
break;
|
|
}
|
|
|
|
if (!num_choices)
|
|
{
|
|
G_Printf("G_PickTarget: target %s not found\n", targetname);
|
|
return NULL;
|
|
}
|
|
|
|
return choice[rand() % num_choices];
|
|
}
|
|
|
|
|
|
/*
|
|
==============================
|
|
G_UseTargets
|
|
|
|
"activator" should be set to the entity that initiated the firing.
|
|
|
|
Search for (string)targetname in all entities that
|
|
match (string)self.target and call their .use function
|
|
|
|
==============================
|
|
*/
|
|
void G_UseTargets( gentity_t *ent, gentity_t *activator ) {
|
|
gentity_t *t;
|
|
|
|
if ( !ent ) {
|
|
return;
|
|
}
|
|
|
|
if (ent->targetShaderName && ent->targetShaderNewName) {
|
|
float f = level.time * 0.001;
|
|
AddRemap(ent->targetShaderName, ent->targetShaderNewName, f);
|
|
trap_SetConfigstring(CS_SHADERSTATE, BuildShaderStateConfig());
|
|
}
|
|
|
|
if ( !ent->target ) {
|
|
return;
|
|
}
|
|
|
|
t = NULL;
|
|
while ( (t = G_Find (t, FOFS(targetname), ent->target)) != NULL ) {
|
|
if ( t == ent ) {
|
|
G_Printf ("WARNING: Entity used itself.\n");
|
|
} else {
|
|
if ( t->use ) {
|
|
t->use (t, ent, activator);
|
|
}
|
|
}
|
|
if ( !ent->inuse ) {
|
|
G_Printf("entity was removed while using targets\n");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
TempVector
|
|
|
|
This is just a convenience function
|
|
for making temporary vectors for function calls
|
|
=============
|
|
*/
|
|
float *tv( float x, float y, float z ) {
|
|
static int index;
|
|
static vec3_t vecs[8];
|
|
float *v;
|
|
|
|
// use an array so that multiple tempvectors won't collide
|
|
// for a while
|
|
v = vecs[index];
|
|
index = (index + 1)&7;
|
|
|
|
v[0] = x;
|
|
v[1] = y;
|
|
v[2] = z;
|
|
|
|
return v;
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
VectorToString
|
|
|
|
This is just a convenience function
|
|
for printing vectors
|
|
=============
|
|
*/
|
|
char *vtos( const vec3_t v ) {
|
|
static int index;
|
|
static char str[8][32];
|
|
char *s;
|
|
|
|
// use an array so that multiple vtos won't collide
|
|
s = str[index];
|
|
index = (index + 1)&7;
|
|
|
|
Com_sprintf (s, 32, "(%i %i %i)", (int)v[0], (int)v[1], (int)v[2]);
|
|
|
|
return s;
|
|
}
|
|
|
|
|
|
/*
|
|
===============
|
|
G_SetMovedir
|
|
|
|
The editor only specifies a single value for angles (yaw),
|
|
but we have special constants to generate an up or down direction.
|
|
Angles will be cleared, because it is being used to represent a direction
|
|
instead of an orientation.
|
|
===============
|
|
*/
|
|
void G_SetMovedir( vec3_t angles, vec3_t movedir ) {
|
|
static vec3_t VEC_UP = {0, -1, 0};
|
|
static vec3_t MOVEDIR_UP = {0, 0, 1};
|
|
static vec3_t VEC_DOWN = {0, -2, 0};
|
|
static vec3_t MOVEDIR_DOWN = {0, 0, -1};
|
|
|
|
if ( VectorCompare (angles, VEC_UP) ) {
|
|
VectorCopy (MOVEDIR_UP, movedir);
|
|
} else if ( VectorCompare (angles, VEC_DOWN) ) {
|
|
VectorCopy (MOVEDIR_DOWN, movedir);
|
|
} else {
|
|
AngleVectors (angles, movedir, NULL, NULL);
|
|
}
|
|
VectorClear( angles );
|
|
}
|
|
|
|
|
|
float vectoyaw( const vec3_t vec ) {
|
|
float yaw;
|
|
|
|
if (vec[YAW] == 0 && vec[PITCH] == 0) {
|
|
yaw = 0;
|
|
} else {
|
|
if (vec[PITCH]) {
|
|
yaw = ( atan2( vec[YAW], vec[PITCH]) * 180 / M_PI );
|
|
} else if (vec[YAW] > 0) {
|
|
yaw = 90;
|
|
} else {
|
|
yaw = 270;
|
|
}
|
|
if (yaw < 0) {
|
|
yaw += 360;
|
|
}
|
|
}
|
|
|
|
return yaw;
|
|
}
|
|
|
|
|
|
void G_InitGentity( gentity_t *e ) {
|
|
e->inuse = qtrue;
|
|
e->classname = "noclass";
|
|
e->s.number = e - g_entities;
|
|
e->r.ownerNum = ENTITYNUM_NONE;
|
|
}
|
|
|
|
/*
|
|
=================
|
|
G_Spawn
|
|
|
|
Either finds a free entity, or allocates a new one.
|
|
|
|
The slots from 0 to MAX_CLIENTS-1 are always reserved for clients, and will
|
|
never be used by anything else.
|
|
|
|
Try to avoid reusing an entity that was recently freed, because it
|
|
can cause the client to think the entity morphed into something else
|
|
instead of being removed and recreated, which can cause interpolated
|
|
angles and bad trails.
|
|
=================
|
|
*/
|
|
gentity_t *G_Spawn( void ) {
|
|
int i, force;
|
|
gentity_t *e;
|
|
|
|
e = NULL; // shut up warning
|
|
i = 0; // shut up warning
|
|
for ( force = 0 ; force < 2 ; force++ ) {
|
|
// if we go through all entities and can't find one to free,
|
|
// override the normal minimum times before use
|
|
e = &g_entities[MAX_CLIENTS];
|
|
for ( i = MAX_CLIENTS ; i<level.num_entities ; i++, e++) {
|
|
if ( e->inuse ) {
|
|
continue;
|
|
}
|
|
|
|
// the first couple seconds of server time can involve a lot of
|
|
// freeing and allocating, so relax the replacement policy
|
|
if ( !force && e->freetime > level.startTime + 2000 && level.time - e->freetime < 1000 ) {
|
|
continue;
|
|
}
|
|
|
|
// reuse this slot
|
|
G_InitGentity( e );
|
|
return e;
|
|
}
|
|
if ( i != MAX_GENTITIES ) {
|
|
break;
|
|
}
|
|
}
|
|
if ( i == ENTITYNUM_MAX_NORMAL ) {
|
|
for (i = 0; i < MAX_GENTITIES; i++) {
|
|
G_Printf("%4i: %s\n", i, g_entities[i].classname);
|
|
}
|
|
G_Error( "G_Spawn: no free entities" );
|
|
}
|
|
|
|
// open up a new slot
|
|
level.num_entities++;
|
|
|
|
// let the server system know that there are more entities
|
|
trap_LocateGameData( level.gentities, level.num_entities, sizeof( gentity_t ),
|
|
&level.clients[0].ps, sizeof( level.clients[0] ) );
|
|
|
|
G_InitGentity( e );
|
|
return e;
|
|
}
|
|
|
|
/*
|
|
=================
|
|
G_EntitiesFree
|
|
=================
|
|
*/
|
|
qboolean G_EntitiesFree( void ) {
|
|
int i;
|
|
gentity_t *e;
|
|
|
|
e = &g_entities[MAX_CLIENTS];
|
|
for ( i = MAX_CLIENTS; i < level.num_entities; i++, e++) {
|
|
if ( e->inuse ) {
|
|
continue;
|
|
}
|
|
// slot available
|
|
return qtrue;
|
|
}
|
|
return qfalse;
|
|
}
|
|
|
|
|
|
/*
|
|
=================
|
|
G_FreeEntity
|
|
|
|
Marks the entity as free
|
|
=================
|
|
*/
|
|
void G_FreeEntity( gentity_t *ed ) {
|
|
trap_UnlinkEntity (ed); // unlink from world
|
|
|
|
if ( ed->neverFree ) {
|
|
return;
|
|
}
|
|
|
|
memset (ed, 0, sizeof(*ed));
|
|
ed->classname = "freed";
|
|
ed->freetime = level.time;
|
|
ed->inuse = qfalse;
|
|
}
|
|
|
|
/*
|
|
=================
|
|
G_TempEntity
|
|
|
|
Spawns an event entity that will be auto-removed
|
|
The origin will be snapped to save net bandwidth, so care
|
|
must be taken if the origin is right on a surface (snap towards start vector first)
|
|
=================
|
|
*/
|
|
gentity_t *G_TempEntity( vec3_t origin, int event ) {
|
|
gentity_t *e;
|
|
vec3_t snapped;
|
|
|
|
e = G_Spawn();
|
|
e->s.eType = ET_EVENTS + event;
|
|
|
|
e->classname = "tempEntity";
|
|
e->eventTime = level.time;
|
|
e->freeAfterEvent = qtrue;
|
|
|
|
VectorCopy( origin, snapped );
|
|
SnapVector( snapped ); // save network bandwidth
|
|
G_SetOrigin( e, snapped );
|
|
|
|
// find cluster for PVS
|
|
trap_LinkEntity( e );
|
|
|
|
return e;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
==============================================================================
|
|
|
|
Kill box
|
|
|
|
==============================================================================
|
|
*/
|
|
|
|
/*
|
|
=================
|
|
G_KillBox
|
|
|
|
Kills all entities that would touch the proposed new positioning
|
|
of ent. Ent should be unlinked before calling this!
|
|
=================
|
|
*/
|
|
void G_KillBox (gentity_t *ent) {
|
|
int i, num;
|
|
int touch[MAX_GENTITIES];
|
|
gentity_t *hit;
|
|
vec3_t mins, maxs;
|
|
|
|
VectorAdd( ent->client->ps.origin, ent->r.mins, mins );
|
|
VectorAdd( ent->client->ps.origin, ent->r.maxs, maxs );
|
|
num = trap_EntitiesInBox( mins, maxs, touch, MAX_GENTITIES );
|
|
|
|
for (i=0 ; i<num ; i++) {
|
|
hit = &g_entities[touch[i]];
|
|
if ( !hit->client ) {
|
|
continue;
|
|
}
|
|
|
|
// nail it
|
|
G_Damage ( hit, ent, ent, NULL, NULL,
|
|
100000, DAMAGE_NO_PROTECTION, MOD_TELEFRAG);
|
|
}
|
|
|
|
}
|
|
|
|
//==============================================================================
|
|
|
|
/*
|
|
===============
|
|
G_AddPredictableEvent
|
|
|
|
Use for non-pmove events that would also be predicted on the
|
|
client side: jumppads and item pickups
|
|
Adds an event+parm and twiddles the event counter
|
|
===============
|
|
*/
|
|
void G_AddPredictableEvent( gentity_t *ent, int event, int eventParm ) {
|
|
if ( !ent->client ) {
|
|
return;
|
|
}
|
|
BG_AddPredictableEventToPlayerstate( event, eventParm, &ent->client->ps );
|
|
}
|
|
|
|
|
|
/*
|
|
===============
|
|
G_AddEvent
|
|
|
|
Adds an event+parm and twiddles the event counter
|
|
===============
|
|
*/
|
|
void G_AddEvent( gentity_t *ent, int event, int eventParm ) {
|
|
int bits;
|
|
|
|
if ( !event ) {
|
|
G_Printf( "G_AddEvent: zero event added for entity %i\n", ent->s.number );
|
|
return;
|
|
}
|
|
|
|
// clients need to add the event in playerState_t instead of entityState_t
|
|
if ( ent->client ) {
|
|
bits = ent->client->ps.externalEvent & EV_EVENT_BITS;
|
|
bits = ( bits + EV_EVENT_BIT1 ) & EV_EVENT_BITS;
|
|
ent->client->ps.externalEvent = event | bits;
|
|
ent->client->ps.externalEventParm = eventParm;
|
|
ent->client->ps.externalEventTime = level.time;
|
|
} else {
|
|
bits = ent->s.event & EV_EVENT_BITS;
|
|
bits = ( bits + EV_EVENT_BIT1 ) & EV_EVENT_BITS;
|
|
ent->s.event = event | bits;
|
|
ent->s.eventParm = eventParm;
|
|
}
|
|
ent->eventTime = level.time;
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
G_Sound
|
|
=============
|
|
*/
|
|
void G_Sound( gentity_t *ent, int channel, int soundIndex ) {
|
|
gentity_t *te;
|
|
|
|
te = G_TempEntity( ent->r.currentOrigin, EV_GENERAL_SOUND );
|
|
te->s.eventParm = soundIndex;
|
|
}
|
|
|
|
|
|
//==============================================================================
|
|
|
|
|
|
/*
|
|
================
|
|
G_SetOrigin
|
|
|
|
Sets the pos trajectory for a fixed position
|
|
================
|
|
*/
|
|
void G_SetOrigin( gentity_t *ent, vec3_t origin ) {
|
|
VectorCopy( origin, ent->s.pos.trBase );
|
|
ent->s.pos.trType = TR_STATIONARY;
|
|
ent->s.pos.trTime = 0;
|
|
ent->s.pos.trDuration = 0;
|
|
VectorClear( ent->s.pos.trDelta );
|
|
|
|
VectorCopy( origin, ent->r.currentOrigin );
|
|
}
|
|
|
|
/*
|
|
================
|
|
DebugLine
|
|
|
|
debug polygons only work when running a local game
|
|
with r_debugSurface set to 2
|
|
================
|
|
*/
|
|
int DebugLine(vec3_t start, vec3_t end, int color) {
|
|
vec3_t points[4], dir, cross, up = {0, 0, 1};
|
|
float dot;
|
|
|
|
VectorCopy(start, points[0]);
|
|
VectorCopy(start, points[1]);
|
|
//points[1][2] -= 2;
|
|
VectorCopy(end, points[2]);
|
|
//points[2][2] -= 2;
|
|
VectorCopy(end, points[3]);
|
|
|
|
|
|
VectorSubtract(end, start, dir);
|
|
VectorNormalize(dir);
|
|
dot = DotProduct(dir, up);
|
|
if (dot > 0.99 || dot < -0.99) VectorSet(cross, 1, 0, 0);
|
|
else CrossProduct(dir, up, cross);
|
|
|
|
VectorNormalize(cross);
|
|
|
|
VectorMA(points[0], 2, cross, points[0]);
|
|
VectorMA(points[1], -2, cross, points[1]);
|
|
VectorMA(points[2], -2, cross, points[2]);
|
|
VectorMA(points[3], 2, cross, points[3]);
|
|
|
|
return trap_DebugPolygonCreate(color, 4, points);
|
|
}
|