void GS_TraceCurveLaserBeam( trace_t *trace, vec3_t origin, vec3_t angles, vec3_t blendPoint, int ignore, int timeDelta, void ( *impact )( trace_t *tr, vec3_t dir ) )
{
float frac, subdivisions = CURVELASERBEAM_SUBDIVISIONS;
float range = (float)GS_GetWeaponDef( WEAP_LASERGUN )->firedef_weak.timeout;
vec3_t from, dir, end;
int passthrough = ignore;
int i, j;
vec3_t tmpangles, blendAngles;
assert( trace );
VectorCopy( origin, from );
VectorSubtract( blendPoint, origin, dir );
VecToAngles( dir, blendAngles );
for( i = 1; i <= (int)subdivisions; i++ )
{
frac = ( ( range/subdivisions )*(float)i ) / (float)range;
for( j = 0; j < 3; j++ )
tmpangles[j] = LerpAngle( angles[j], blendAngles[j], frac );
AngleVectors( tmpangles, dir, NULL, NULL );
VectorMA( origin, range * frac, dir, end );
GS_TraceLaserBeam( trace, from, tmpangles, DistanceFast( from, end ), passthrough, timeDelta, impact );
if( trace->fraction != 1.0f )
break;
passthrough = trace->ent;
VectorCopy( end, from );
}
}
/*
* W_Fire_Lasergun
*/
edict_t *W_Fire_Lasergun( edict_t *self, vec3_t start, vec3_t angles, float damage, int knockback, int stun, int range, int mod, int timeDelta )
{
edict_t *laser;
qboolean newLaser;
trace_t tr;
vec3_t dir;
if( GS_Instagib() )
damage = 9999;
laser = _FindOrSpawnLaser( self, ET_LASERBEAM, &newLaser );
if( newLaser )
{
// the quad start sound is added from the server
if( self->r.client && self->r.client->ps.inventory[POWERUP_QUAD] > 0 )
G_Sound( self, CHAN_AUTO, trap_SoundIndex( S_QUAD_FIRE ), ATTN_NORM );
}
laser_damage = damage;
laser_knockback = knockback;
laser_stun = stun;
laser_attackerNum = ENTNUM( self );
laser_mod = mod;
laser_missed = qtrue;
GS_TraceLaserBeam( &tr, start, angles, range, ENTNUM( self ), timeDelta, _LaserImpact );
laser->r.svflags |= SVF_FORCEOWNER;
VectorCopy( start, laser->s.origin );
AngleVectors( angles, dir, NULL, NULL );
VectorMA( laser->s.origin, range, dir, laser->s.origin2 );
laser->think = G_Laser_Think;
laser->nextThink = level.time + 100;
if( laser_missed && self->r.client )
G_AwardPlayerMissedLasergun( self, mod );
// calculate laser's mins and maxs for linkEntity
G_SetBoundsForSpanEntity( laser, 8 );
GClip_LinkEntity( laser );
return laser;
}
void CG_LaserBeamEffect( centity_t *cent )
{
struct sfx_s *sound = NULL;
float range;
trace_t trace;
orientation_t projectsource;
vec4_t color;
vec3_t laserOrigin, laserAngles, laserPoint;
int i, j;
if( cent->localEffects[LOCALEFFECT_LASERBEAM] <= cg.time )
return;
laserOwner = cent;
if( cg_teamColoredBeams->integer && ( cent->current.team == TEAM_ALPHA || cent->current.team == TEAM_BETA ) )
CG_TeamColor( cent->current.team, color );
else
Vector4Set( color, 1, 1, 1, 1 );
// interpolate the positions
if( ISVIEWERENTITY( cent->current.number ) && !cg.view.thirdperson )
{
VectorCopy( cg.predictedPlayerState.pmove.origin, laserOrigin );
laserOrigin[2] += cg.predictedPlayerState.viewheight;
VectorCopy( cg.predictedPlayerState.viewangles, laserAngles );
VectorLerp( cent->laserPointOld, cg.lerpfrac, cent->laserPoint, laserPoint );
}
else
{
VectorLerp( cent->laserOriginOld, cg.lerpfrac, cent->laserOrigin, laserOrigin );
VectorLerp( cent->laserPointOld, cg.lerpfrac, cent->laserPoint, laserPoint );
if( !cent->laserCurved )
{
vec3_t dir;
// make up the angles from the start and end points (s->angles is not so precise)
VectorSubtract( laserPoint, laserOrigin, dir );
VecToAngles( dir, laserAngles );
}
else // use player entity angles
{
for( i = 0; i < 3; i++ )
laserAngles[i] = LerpAngle( cent->prev.angles[i], cent->current.angles[i], cg.lerpfrac );
}
}
if( !cent->laserCurved )
{
range = GS_GetWeaponDef( WEAP_LASERGUN )->firedef.timeout;
if( cent->current.effects & EF_QUAD )
sound = CG_MediaSfx( cgs.media.sfxLasergunStrongQuadHum );
else
sound = CG_MediaSfx( cgs.media.sfxLasergunStrongHum );
// trace the beam: for tracing we use the real beam origin
GS_TraceLaserBeam( &trace, laserOrigin, laserAngles, range, cent->current.number, 0, _LaserImpact );
// draw the beam: for drawing we use the weapon projection source (already handles the case of viewer entity)
if( !CG_PModel_GetProjectionSource( cent->current.number, &projectsource ) )
VectorCopy( laserOrigin, projectsource.origin );
CG_KillPolyBeamsByTag( cent->current.number );
CG_LaserGunPolyBeam( projectsource.origin, trace.endpos, color, cent->current.number );
}
else
{
float frac, subdivisions = cg_laserBeamSubdivisions->integer;
vec3_t from, dir, end, blendPoint;
int passthrough = cent->current.number;
vec3_t tmpangles, blendAngles;
range = GS_GetWeaponDef( WEAP_LASERGUN )->firedef_weak.timeout;
if( cent->current.effects & EF_QUAD )
sound = CG_MediaSfx( cgs.media.sfxLasergunWeakQuadHum );
else
sound = CG_MediaSfx( cgs.media.sfxLasergunWeakHum );
// trace the beam: for tracing we use the real beam origin
GS_TraceCurveLaserBeam( &trace, laserOrigin, laserAngles, laserPoint, cent->current.number, 0, _LaserImpact );
// draw the beam: for drawing we use the weapon projection source (already handles the case of viewer entity)
if( !CG_PModel_GetProjectionSource( cent->current.number, &projectsource ) )
VectorCopy( laserOrigin, projectsource.origin );
if( subdivisions < CURVELASERBEAM_SUBDIVISIONS )
subdivisions = CURVELASERBEAM_SUBDIVISIONS;
CG_KillPolyBeamsByTag( cent->current.number );
// we redraw the full beam again, and trace each segment for stop dead impact
VectorCopy( laserPoint, blendPoint );
VectorCopy( projectsource.origin, from );
VectorSubtract( blendPoint, projectsource.origin, dir );
VecToAngles( dir, blendAngles );
for( i = 1; i <= (int)subdivisions; i++ )
{
frac = ( ( range/subdivisions )*(float)i ) / (float)range;
for( j = 0; j < 3; j++ )
tmpangles[j] = LerpAngle( laserAngles[j], blendAngles[j], frac );
AngleVectors( tmpangles, dir, NULL, NULL );
VectorMA( projectsource.origin, range * frac, dir, end );
GS_TraceLaserBeam( &trace, from, tmpangles, DistanceFast( from, end ), passthrough, 0, NULL );
CG_LaserGunPolyBeam( from, trace.endpos, color, cent->current.number );
if( trace.fraction != 1.0f )
break;
passthrough = trace.ent;
VectorCopy( trace.endpos, from );
}
}
// enable continuous flash on the weapon owner
if( cg_weaponFlashes->integer )
cg_entPModels[cent->current.number].flash_time = cg.time + CG_GetWeaponInfo( WEAP_LASERGUN )->flashTime;
if( sound )
{
if( ISVIEWERENTITY( cent->current.number ) )
trap_S_AddLoopSound( sound, cent->current.number, 1.0, ATTN_NONE );
else
trap_S_AddLoopSound( sound, cent->current.number, 1.0, ATTN_STATIC );
}
laserOwner = NULL;
}