940 lines
25 KiB
C++
940 lines
25 KiB
C++
//NPC_senses.cpp
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// leave this line at the top for all NPC_xxxx.cpp files...
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#include "g_headers.h"
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#include "b_local.h"
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#ifdef _DEBUG
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#include <float.h>
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#endif
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extern int eventClearTime;
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/*
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qboolean G_ClearLineOfSight(const vec3_t point1, const vec3_t point2, int ignore, int clipmask)
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returns true if can see from point 1 to 2, even through glass (1 pane)- doesn't work with portals
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*/
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qboolean G_ClearLineOfSight(const vec3_t point1, const vec3_t point2, int ignore, int clipmask)
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{
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trace_t tr;
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gi.trace ( &tr, point1, NULL, NULL, point2, ignore, clipmask );
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if ( tr.fraction == 1.0 )
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{
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return qtrue;
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}
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gentity_t *hit = &g_entities[ tr.entityNum ];
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if(EntIsGlass(hit))
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{
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vec3_t newpoint1;
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VectorCopy(tr.endpos, newpoint1);
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gi.trace (&tr, newpoint1, NULL, NULL, point2, hit->s.number, clipmask );
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if ( tr.fraction == 1.0 )
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{
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return qtrue;
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}
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}
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return qfalse;
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}
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/*
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CanSee
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determine if NPC can see an entity
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This is a straight line trace check. This function does not look at PVS or FOV,
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or take any AI related factors (for example, the NPC's reaction time) into account
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FIXME do we need fat and thin version of this?
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*/
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qboolean CanSee ( gentity_t *ent )
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{
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trace_t tr;
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vec3_t eyes;
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vec3_t spot;
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CalcEntitySpot( NPC, SPOT_HEAD_LEAN, eyes );
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CalcEntitySpot( ent, SPOT_ORIGIN, spot );
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gi.trace ( &tr, eyes, NULL, NULL, spot, NPC->s.number, MASK_OPAQUE );
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ShotThroughGlass (&tr, ent, spot, MASK_OPAQUE);
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if ( tr.fraction == 1.0 )
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{
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return qtrue;
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}
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CalcEntitySpot( ent, SPOT_HEAD, spot );
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gi.trace ( &tr, eyes, NULL, NULL, spot, NPC->s.number, MASK_OPAQUE );
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ShotThroughGlass (&tr, ent, spot, MASK_OPAQUE);
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if ( tr.fraction == 1.0 )
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{
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return qtrue;
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}
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CalcEntitySpot( ent, SPOT_LEGS, spot );
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gi.trace ( &tr, eyes, NULL, NULL, spot, NPC->s.number, MASK_OPAQUE );
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ShotThroughGlass (&tr, ent, spot, MASK_OPAQUE);
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if ( tr.fraction == 1.0 )
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{
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return qtrue;
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}
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return qfalse;
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}
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qboolean InFront( vec3_t spot, vec3_t from, vec3_t fromAngles, float threshHold = 0.0f )
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{
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vec3_t dir, forward, angles;
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float dot;
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VectorSubtract( spot, from, dir );
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dir[2] = 0;
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VectorNormalize( dir );
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VectorCopy( fromAngles, angles );
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angles[0] = 0;
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AngleVectors( angles, forward, NULL, NULL );
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dot = DotProduct( dir, forward );
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return (dot > threshHold);
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}
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/*
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InFOV
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IDEA: further off to side of FOV range, higher chance of failing even if technically in FOV,
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keep core of 50% to sides as always succeeding
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*/
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//Position compares
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qboolean InFOV( vec3_t spot, vec3_t from, vec3_t fromAngles, int hFOV, int vFOV )
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{
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vec3_t deltaVector, angles, deltaAngles;
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VectorSubtract ( spot, from, deltaVector );
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vectoangles ( deltaVector, angles );
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deltaAngles[PITCH] = AngleDelta ( fromAngles[PITCH], angles[PITCH] );
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deltaAngles[YAW] = AngleDelta ( fromAngles[YAW], angles[YAW] );
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if ( fabs ( deltaAngles[PITCH] ) <= vFOV && fabs ( deltaAngles[YAW] ) <= hFOV )
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{
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return qtrue;
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}
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return qfalse;
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}
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//NPC to position
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qboolean InFOV( vec3_t origin, gentity_t *from, int hFOV, int vFOV )
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{
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vec3_t fromAngles, eyes;
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if( from->client )
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{
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VectorCopy(from->client->ps.viewangles, fromAngles);
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}
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else
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{
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VectorCopy(from->s.angles, fromAngles);
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}
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CalcEntitySpot( from, SPOT_HEAD, eyes );
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return InFOV( origin, eyes, fromAngles, hFOV, vFOV );
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}
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//Entity to entity
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qboolean InFOV ( gentity_t *ent, gentity_t *from, int hFOV, int vFOV )
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{
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vec3_t eyes;
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vec3_t spot;
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vec3_t deltaVector;
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vec3_t angles, fromAngles;
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vec3_t deltaAngles;
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if( from->client )
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{
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if( !VectorCompare( from->client->renderInfo.eyeAngles, vec3_origin ) )
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{//Actual facing of tag_head!
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//NOTE: Stasis aliens may have a problem with this?
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VectorCopy( from->client->renderInfo.eyeAngles, fromAngles );
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}
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else
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{
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VectorCopy( from->client->ps.viewangles, fromAngles );
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}
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}
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else
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{
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VectorCopy(from->s.angles, fromAngles);
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}
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CalcEntitySpot( from, SPOT_HEAD_LEAN, eyes );
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CalcEntitySpot( ent, SPOT_ORIGIN, spot );
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VectorSubtract ( spot, eyes, deltaVector);
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vectoangles ( deltaVector, angles );
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deltaAngles[PITCH] = AngleDelta ( fromAngles[PITCH], angles[PITCH] );
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deltaAngles[YAW] = AngleDelta ( fromAngles[YAW], angles[YAW] );
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if ( fabs ( deltaAngles[PITCH] ) <= vFOV && fabs ( deltaAngles[YAW] ) <= hFOV )
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{
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return qtrue;
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}
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CalcEntitySpot( ent, SPOT_HEAD, spot );
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VectorSubtract ( spot, eyes, deltaVector);
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vectoangles ( deltaVector, angles );
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deltaAngles[PITCH] = AngleDelta ( fromAngles[PITCH], angles[PITCH] );
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deltaAngles[YAW] = AngleDelta ( fromAngles[YAW], angles[YAW] );
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if ( fabs ( deltaAngles[PITCH] ) <= vFOV && fabs ( deltaAngles[YAW] ) <= hFOV )
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{
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return qtrue;
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}
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CalcEntitySpot( ent, SPOT_LEGS, spot );
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VectorSubtract ( spot, eyes, deltaVector);
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vectoangles ( deltaVector, angles );
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deltaAngles[PITCH] = AngleDelta ( fromAngles[PITCH], angles[PITCH] );
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deltaAngles[YAW] = AngleDelta ( fromAngles[YAW], angles[YAW] );
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if ( fabs ( deltaAngles[PITCH] ) <= vFOV && fabs ( deltaAngles[YAW] ) <= hFOV )
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{
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return qtrue;
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}
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return qfalse;
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}
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qboolean InVisrange ( gentity_t *ent )
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{//FIXME: make a calculate visibility for ents that takes into account
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//lighting, movement, turning, crouch/stand up, other anims, hide brushes, etc.
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vec3_t eyes;
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vec3_t spot;
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vec3_t deltaVector;
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float visrange = (NPCInfo->stats.visrange*NPCInfo->stats.visrange);
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CalcEntitySpot( NPC, SPOT_HEAD_LEAN, eyes );
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CalcEntitySpot( ent, SPOT_ORIGIN, spot );
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VectorSubtract ( spot, eyes, deltaVector);
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/*if(ent->client)
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{
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float vel, avel;
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if(ent->client->ps.velocity[0] || ent->client->ps.velocity[1] || ent->client->ps.velocity[2])
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{
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vel = VectorLength(ent->client->ps.velocity);
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if(vel > 128)
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{
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visrange += visrange * (vel/256);
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}
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}
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if(ent->avelocity[0] || ent->avelocity[1] || ent->avelocity[2])
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{//FIXME: shouldn't they need to have line of sight to you to detect this?
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avel = VectorLength(ent->avelocity);
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if(avel > 15)
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{
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visrange += visrange * (avel/60);
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}
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}
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}*/
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if(VectorLengthSquared(deltaVector) > visrange)
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{
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return qfalse;
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}
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return qtrue;
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}
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/*
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NPC_CheckVisibility
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*/
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visibility_t NPC_CheckVisibility ( gentity_t *ent, int flags )
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{
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// flags should never be 0
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if ( !flags )
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{
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return VIS_NOT;
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}
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// check PVS
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if ( flags & CHECK_PVS )
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{
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if ( !gi.inPVS ( ent->currentOrigin, NPC->currentOrigin ) )
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{
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return VIS_NOT;
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}
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}
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if ( !(flags & (CHECK_360|CHECK_FOV|CHECK_SHOOT)) )
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{
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return VIS_PVS;
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}
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// check within visrange
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if (flags & CHECK_VISRANGE)
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{
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if( !InVisrange ( ent ) )
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{
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return VIS_PVS;
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}
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}
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// check 360 degree visibility
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//Meaning has to be a direct line of site
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if ( flags & CHECK_360 )
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{
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if ( !CanSee ( ent ) )
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{
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return VIS_PVS;
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}
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}
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if ( !(flags & (CHECK_FOV|CHECK_SHOOT)) )
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{
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return VIS_360;
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}
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// check FOV
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if ( flags & CHECK_FOV )
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{
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if ( !InFOV ( ent, NPC, NPCInfo->stats.hfov, NPCInfo->stats.vfov) )
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{
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return VIS_360;
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}
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}
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if ( !(flags & CHECK_SHOOT) )
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{
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return VIS_FOV;
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}
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// check shootability
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if ( flags & CHECK_SHOOT )
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{
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if ( !CanShoot ( ent, NPC ) )
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{
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return VIS_FOV;
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}
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}
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return VIS_SHOOT;
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}
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/*
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-------------------------
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NPC_CheckSoundEvents
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-------------------------
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*/
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static int G_CheckSoundEvents( gentity_t *self, float maxHearDist, int ignoreAlert, qboolean mustHaveOwner, int minAlertLevel )
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{
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int bestEvent = -1;
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int bestAlert = -1;
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int bestTime = -1;
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float dist, radius;
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maxHearDist *= maxHearDist;
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for ( int i = 0; i < level.numAlertEvents; i++ )
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{
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//are we purposely ignoring this alert?
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if ( i == ignoreAlert )
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continue;
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//We're only concerned about sounds
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if ( level.alertEvents[i].type != AET_SOUND )
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continue;
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//must be at least this noticable
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if ( level.alertEvents[i].level < minAlertLevel )
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continue;
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//must have an owner?
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if ( mustHaveOwner && !level.alertEvents[i].owner )
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continue;
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//Must be within range
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dist = DistanceSquared( level.alertEvents[i].position, self->currentOrigin );
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//can't hear it
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if ( dist > maxHearDist )
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continue;
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radius = level.alertEvents[i].radius * level.alertEvents[i].radius;
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if ( dist > radius )
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continue;
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if ( level.alertEvents[i].addLight )
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{//a quiet sound, must have LOS to hear it
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if ( G_ClearLOS( self, level.alertEvents[i].position ) == qfalse )
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{//no LOS, didn't hear it
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continue;
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}
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}
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//See if this one takes precedence over the previous one
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if ( level.alertEvents[i].level >= bestAlert //higher alert level
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|| (level.alertEvents[i].level==bestAlert&&level.alertEvents[i].timestamp >= bestTime) )//same alert level, but this one is newer
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{//NOTE: equal is better because it's later in the array
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bestEvent = i;
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bestAlert = level.alertEvents[i].level;
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bestTime = level.alertEvents[i].timestamp;
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}
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}
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return bestEvent;
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}
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float G_GetLightLevel( vec3_t pos, vec3_t fromDir )
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{
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vec3_t ambient={0}, directed, lightDir;
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float lightLevel;
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cgi_R_GetLighting( pos, ambient, directed, lightDir );
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lightLevel = VectorLength( ambient ) + (VectorLength( directed )*DotProduct( lightDir, fromDir ));
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return lightLevel;
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}
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/*
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-------------------------
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NPC_CheckSightEvents
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-------------------------
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*/
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static int G_CheckSightEvents( gentity_t *self, int hFOV, int vFOV, float maxSeeDist, int ignoreAlert, qboolean mustHaveOwner, int minAlertLevel )
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{
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int bestEvent = -1;
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int bestAlert = -1;
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int bestTime = -1;
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float dist, radius;
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maxSeeDist *= maxSeeDist;
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for ( int i = 0; i < level.numAlertEvents; i++ )
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{
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//are we purposely ignoring this alert?
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if ( i == ignoreAlert )
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continue;
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//We're only concerned about sounds
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if ( level.alertEvents[i].type != AET_SIGHT )
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continue;
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//must be at least this noticable
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if ( level.alertEvents[i].level < minAlertLevel )
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continue;
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//must have an owner?
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if ( mustHaveOwner && !level.alertEvents[i].owner )
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continue;
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//Must be within range
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dist = DistanceSquared( level.alertEvents[i].position, self->currentOrigin );
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//can't see it
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if ( dist > maxSeeDist )
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continue;
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radius = level.alertEvents[i].radius * level.alertEvents[i].radius;
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if ( dist > radius )
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continue;
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//Must be visible
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if ( InFOV( level.alertEvents[i].position, self, hFOV, vFOV ) == qfalse )
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continue;
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if ( G_ClearLOS( self, level.alertEvents[i].position ) == qfalse )
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continue;
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//FIXME: possibly have the light level at this point affect the
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// visibility/alert level of this event? Would also
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// need to take into account how bright the event
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// itself is. A lightsaber would stand out more
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// in the dark... maybe pass in a light level that
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// is added to the actual light level at this position?
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//See if this one takes precedence over the previous one
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if ( level.alertEvents[i].level >= bestAlert //higher alert level
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|| (level.alertEvents[i].level==bestAlert&&level.alertEvents[i].timestamp >= bestTime) )//same alert level, but this one is newer
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{//NOTE: equal is better because it's later in the array
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bestEvent = i;
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bestAlert = level.alertEvents[i].level;
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bestTime = level.alertEvents[i].timestamp;
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}
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}
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return bestEvent;
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}
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/*
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-------------------------
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NPC_CheckAlertEvents
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NOTE: Should all NPCs create alertEvents too so they can detect each other?
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-------------------------
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*/
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int G_CheckAlertEvents( gentity_t *self, qboolean checkSight, qboolean checkSound, float maxSeeDist, float maxHearDist, int ignoreAlert, qboolean mustHaveOwner, int minAlertLevel )
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{
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if ( &g_entities[0] == NULL || g_entities[0].health <= 0 )
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{
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//player is dead
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return -1;
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}
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int bestSoundEvent = -1;
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int bestSightEvent = -1;
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int bestSoundAlert = -1;
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int bestSightAlert = -1;
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//get sound event
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bestSoundEvent = G_CheckSoundEvents( self, maxHearDist, ignoreAlert, mustHaveOwner, minAlertLevel );
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//get sound event alert level
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if ( bestSoundEvent >= 0 )
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{
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bestSoundAlert = level.alertEvents[bestSoundEvent].level;
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}
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//get sight event
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if ( self->NPC )
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{
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bestSightEvent = G_CheckSightEvents( self, self->NPC->stats.hfov, self->NPC->stats.vfov, maxSeeDist, ignoreAlert, mustHaveOwner, minAlertLevel );
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}
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else
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{
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bestSightEvent = G_CheckSightEvents( self, 80, 80, maxSeeDist, ignoreAlert, mustHaveOwner, minAlertLevel );//FIXME: look at cg_view to get more accurate numbers?
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}
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//get sight event alert level
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if ( bestSightEvent >= 0 )
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{
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bestSightAlert = level.alertEvents[bestSightEvent].level;
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}
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//return the one that has a higher alert (or sound if equal)
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//FIXME: This doesn't take the distance of the event into account
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if ( bestSightEvent >= 0 && bestSightAlert > bestSoundAlert )
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{//valid best sight event, more important than the sound event
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//get the light level of the alert event for this checker
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vec3_t eyePoint, sightDir;
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//get eye point
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CalcEntitySpot( self, SPOT_HEAD_LEAN, eyePoint );
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VectorSubtract( level.alertEvents[bestSightEvent].position, eyePoint, sightDir );
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level.alertEvents[bestSightEvent].light = level.alertEvents[bestSightEvent].addLight + G_GetLightLevel( level.alertEvents[bestSightEvent].position, sightDir );
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//return the sight event
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return bestSightEvent;
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}
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//return the sound event
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return bestSoundEvent;
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}
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int NPC_CheckAlertEvents( qboolean checkSight, qboolean checkSound, int ignoreAlert, qboolean mustHaveOwner, int minAlertLevel )
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{
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return G_CheckAlertEvents( NPC, checkSight, checkSound, NPCInfo->stats.visrange, NPCInfo->stats.earshot, ignoreAlert, mustHaveOwner, minAlertLevel );
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}
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qboolean G_CheckForDanger( gentity_t *self, int alertEvent )
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|
{//FIXME: more bStates need to call this?
|
|
if ( alertEvent == -1 )
|
|
{
|
|
return qfalse;
|
|
}
|
|
|
|
if ( level.alertEvents[alertEvent].level >= AEL_DANGER )
|
|
{//run away!
|
|
if ( !level.alertEvents[alertEvent].owner || !level.alertEvents[alertEvent].owner->client || (level.alertEvents[alertEvent].owner!=self&&level.alertEvents[alertEvent].owner->client->playerTeam!=self->client->playerTeam) )
|
|
{
|
|
if ( self->NPC )
|
|
{
|
|
if ( self->NPC->scriptFlags & SCF_DONT_FLEE )
|
|
{//can't flee
|
|
return qfalse;
|
|
}
|
|
else
|
|
{
|
|
NPC_StartFlee( level.alertEvents[alertEvent].owner, level.alertEvents[alertEvent].position, level.alertEvents[alertEvent].level, 3000, 6000 );
|
|
return qtrue;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return qtrue;
|
|
}
|
|
}
|
|
}
|
|
return qfalse;
|
|
}
|
|
qboolean NPC_CheckForDanger( int alertEvent )
|
|
{//FIXME: more bStates need to call this?
|
|
return G_CheckForDanger( NPC, alertEvent );
|
|
}
|
|
|
|
/*
|
|
-------------------------
|
|
AddSoundEvent
|
|
-------------------------
|
|
*/
|
|
qboolean RemoveOldestAlert( void );
|
|
void AddSoundEvent( gentity_t *owner, vec3_t position, float radius, alertEventLevel_e alertLevel, qboolean needLOS )
|
|
{
|
|
//FIXME: Handle this in another manner?
|
|
if ( level.numAlertEvents >= MAX_ALERT_EVENTS )
|
|
{
|
|
if ( !RemoveOldestAlert() )
|
|
{//how could that fail?
|
|
return;
|
|
}
|
|
}
|
|
|
|
if ( owner == NULL && alertLevel < AEL_DANGER ) //allows un-owned danger alerts
|
|
return;
|
|
|
|
//FIXME: if owner is not a player or player ally, and there are no player allies present,
|
|
// perhaps we don't need to store the alert... unless we want the player to
|
|
// react to enemy alert events in some way?
|
|
|
|
#ifdef _DEBUG
|
|
assert( !_isnan(position[0]) && !_isnan(position[1]) && !_isnan(position[2]) );
|
|
#endif
|
|
VectorCopy( position, level.alertEvents[ level.numAlertEvents ].position );
|
|
|
|
level.alertEvents[ level.numAlertEvents ].radius = radius;
|
|
level.alertEvents[ level.numAlertEvents ].level = alertLevel;
|
|
level.alertEvents[ level.numAlertEvents ].type = AET_SOUND;
|
|
level.alertEvents[ level.numAlertEvents ].owner = owner;
|
|
if ( needLOS )
|
|
{//a very low-level sound, when check this sound event, check for LOS
|
|
level.alertEvents[ level.numAlertEvents ].addLight = 1; //will force an LOS trace on this sound
|
|
}
|
|
else
|
|
{
|
|
level.alertEvents[ level.numAlertEvents ].addLight = 0; //will force an LOS trace on this sound
|
|
}
|
|
level.alertEvents[ level.numAlertEvents ].ID = level.curAlertID++;
|
|
level.alertEvents[ level.numAlertEvents ].timestamp = level.time;
|
|
|
|
level.numAlertEvents++;
|
|
}
|
|
|
|
/*
|
|
-------------------------
|
|
AddSightEvent
|
|
-------------------------
|
|
*/
|
|
|
|
void AddSightEvent( gentity_t *owner, vec3_t position, float radius, alertEventLevel_e alertLevel, float addLight )
|
|
{
|
|
//FIXME: Handle this in another manner?
|
|
if ( level.numAlertEvents >= MAX_ALERT_EVENTS )
|
|
{
|
|
if ( !RemoveOldestAlert() )
|
|
{//how could that fail?
|
|
return;
|
|
}
|
|
}
|
|
|
|
if ( owner == NULL && alertLevel < AEL_DANGER ) //allows un-owned danger alerts
|
|
return;
|
|
|
|
//FIXME: if owner is not a player or player ally, and there are no player allies present,
|
|
// perhaps we don't need to store the alert... unless we want the player to
|
|
// react to enemy alert events in some way?
|
|
|
|
#ifdef _DEBUG
|
|
assert( !_isnan(position[0]) && !_isnan(position[1]) && !_isnan(position[2]) );
|
|
#endif
|
|
VectorCopy( position, level.alertEvents[ level.numAlertEvents ].position );
|
|
|
|
level.alertEvents[ level.numAlertEvents ].radius = radius;
|
|
level.alertEvents[ level.numAlertEvents ].level = alertLevel;
|
|
level.alertEvents[ level.numAlertEvents ].type = AET_SIGHT;
|
|
level.alertEvents[ level.numAlertEvents ].owner = owner;
|
|
level.alertEvents[ level.numAlertEvents ].addLight = addLight; //will get added to actual light at that point when it's checked
|
|
level.alertEvents[ level.numAlertEvents ].ID = level.curAlertID++;
|
|
level.alertEvents[ level.numAlertEvents ].timestamp = level.time;
|
|
|
|
level.numAlertEvents++;
|
|
}
|
|
|
|
/*
|
|
-------------------------
|
|
ClearPlayerAlertEvents
|
|
-------------------------
|
|
*/
|
|
|
|
void ClearPlayerAlertEvents( void )
|
|
{
|
|
int curNumAlerts = level.numAlertEvents;
|
|
//loop through them all (max 32)
|
|
for ( int i = 0; i < curNumAlerts; i++ )
|
|
{
|
|
//see if the event is old enough to delete
|
|
if ( level.alertEvents[i].timestamp && level.alertEvents[i].timestamp + ALERT_CLEAR_TIME < level.time )
|
|
{//this event has timed out
|
|
//drop the count
|
|
level.numAlertEvents--;
|
|
//shift the rest down
|
|
if ( level.numAlertEvents > 0 )
|
|
{//still have more in the array
|
|
if ( (i+1) < MAX_ALERT_EVENTS )
|
|
{
|
|
memmove( &level.alertEvents[i], &level.alertEvents[i+1], sizeof(alertEvent_t)*(MAX_ALERT_EVENTS-(i+1) ) );
|
|
}
|
|
}
|
|
else
|
|
{//just clear this one... or should we clear the whole array?
|
|
memset( &level.alertEvents[i], 0, sizeof( alertEvent_t ) );
|
|
}
|
|
}
|
|
}
|
|
//make sure this never drops below zero... if it does, something very very bad happened
|
|
assert( level.numAlertEvents >= 0 );
|
|
|
|
if ( eventClearTime < level.time )
|
|
{//this is just a 200ms debouncer so things that generate constant alerts (like corpses and missiles) add an alert every 200 ms
|
|
eventClearTime = level.time + ALERT_CLEAR_TIME;
|
|
}
|
|
}
|
|
|
|
qboolean RemoveOldestAlert( void )
|
|
{
|
|
int oldestEvent = -1, oldestTime = Q3_INFINITE;
|
|
//loop through them all (max 32)
|
|
for ( int i = 0; i < level.numAlertEvents; i++ )
|
|
{
|
|
//see if the event is old enough to delete
|
|
if ( level.alertEvents[i].timestamp < oldestTime )
|
|
{
|
|
oldestEvent = i;
|
|
oldestTime = level.alertEvents[i].timestamp;
|
|
}
|
|
}
|
|
if ( oldestEvent != -1 )
|
|
{
|
|
//drop the count
|
|
level.numAlertEvents--;
|
|
//shift the rest down
|
|
if ( level.numAlertEvents > 0 )
|
|
{//still have more in the array
|
|
if ( (oldestEvent+1) < MAX_ALERT_EVENTS )
|
|
{
|
|
memmove( &level.alertEvents[oldestEvent], &level.alertEvents[oldestEvent+1], sizeof(alertEvent_t)*(MAX_ALERT_EVENTS-(oldestEvent+1) ) );
|
|
}
|
|
}
|
|
else
|
|
{//just clear this one... or should we clear the whole array?
|
|
memset( &level.alertEvents[oldestEvent], 0, sizeof( alertEvent_t ) );
|
|
}
|
|
}
|
|
//make sure this never drops below zero... if it does, something very very bad happened
|
|
assert( level.numAlertEvents >= 0 );
|
|
//return true is have room for one now
|
|
return (level.numAlertEvents<MAX_ALERT_EVENTS);
|
|
}
|
|
|
|
/*
|
|
-------------------------
|
|
G_ClearLOS
|
|
-------------------------
|
|
*/
|
|
|
|
// Position to position
|
|
qboolean G_ClearLOS( gentity_t *self, const vec3_t start, const vec3_t end )
|
|
{
|
|
trace_t tr;
|
|
int traceCount = 0;
|
|
|
|
//FIXME: ENTITYNUM_NONE ok?
|
|
gi.trace ( &tr, start, NULL, NULL, end, ENTITYNUM_NONE, CONTENTS_OPAQUE/*CONTENTS_SOLID*//*(CONTENTS_SOLID|CONTENTS_MONSTERCLIP)*/ );
|
|
while ( tr.fraction < 1.0 && traceCount < 3 )
|
|
{//can see through 3 panes of glass
|
|
if ( tr.entityNum < ENTITYNUM_WORLD )
|
|
{
|
|
if ( &g_entities[tr.entityNum] != NULL && (g_entities[tr.entityNum].svFlags&SVF_GLASS_BRUSH) )
|
|
{//can see through glass, trace again, ignoring me
|
|
gi.trace ( &tr, tr.endpos, NULL, NULL, end, tr.entityNum, MASK_OPAQUE );
|
|
traceCount++;
|
|
continue;
|
|
}
|
|
}
|
|
return qfalse;
|
|
}
|
|
|
|
if ( tr.fraction == 1.0 )
|
|
return qtrue;
|
|
|
|
return qfalse;
|
|
}
|
|
|
|
//Entity to position
|
|
qboolean G_ClearLOS( gentity_t *self, gentity_t *ent, const vec3_t end )
|
|
{
|
|
vec3_t eyes;
|
|
|
|
CalcEntitySpot( ent, SPOT_HEAD_LEAN, eyes );
|
|
|
|
return G_ClearLOS( self, eyes, end );
|
|
}
|
|
|
|
//Position to entity
|
|
qboolean G_ClearLOS( gentity_t *self, const vec3_t start, gentity_t *ent )
|
|
{
|
|
vec3_t spot;
|
|
|
|
//Look for the chest first
|
|
CalcEntitySpot( ent, SPOT_ORIGIN, spot );
|
|
|
|
if ( G_ClearLOS( self, start, spot ) )
|
|
return qtrue;
|
|
|
|
//Look for the head next
|
|
CalcEntitySpot( ent, SPOT_HEAD_LEAN, spot );
|
|
|
|
if ( G_ClearLOS( self, start, spot ) )
|
|
return qtrue;
|
|
|
|
return qfalse;
|
|
}
|
|
|
|
//NPC's eyes to entity
|
|
qboolean G_ClearLOS( gentity_t *self, gentity_t *ent )
|
|
{
|
|
vec3_t eyes;
|
|
|
|
//Calculate my position
|
|
CalcEntitySpot( self, SPOT_HEAD_LEAN, eyes );
|
|
|
|
return G_ClearLOS( self, eyes, ent );
|
|
}
|
|
|
|
//NPC's eyes to position
|
|
qboolean G_ClearLOS( gentity_t *self, const vec3_t end )
|
|
{
|
|
vec3_t eyes;
|
|
|
|
//Calculate the my position
|
|
CalcEntitySpot( self, SPOT_HEAD_LEAN, eyes );
|
|
|
|
return G_ClearLOS( self, eyes, end );
|
|
}
|
|
|
|
/*
|
|
-------------------------
|
|
NPC_GetFOVPercentage
|
|
-------------------------
|
|
*/
|
|
|
|
float NPC_GetHFOVPercentage( vec3_t spot, vec3_t from, vec3_t facing, float hFOV )
|
|
{
|
|
vec3_t deltaVector, angles;
|
|
float delta;
|
|
|
|
VectorSubtract ( spot, from, deltaVector );
|
|
|
|
vectoangles ( deltaVector, angles );
|
|
|
|
delta = fabs( AngleDelta ( facing[YAW], angles[YAW] ) );
|
|
|
|
if ( delta > hFOV )
|
|
return 0.0f;
|
|
|
|
return ( ( hFOV - delta ) / hFOV );
|
|
}
|
|
|
|
/*
|
|
-------------------------
|
|
NPC_GetVFOVPercentage
|
|
-------------------------
|
|
*/
|
|
|
|
float NPC_GetVFOVPercentage( vec3_t spot, vec3_t from, vec3_t facing, float vFOV )
|
|
{
|
|
vec3_t deltaVector, angles;
|
|
float delta;
|
|
|
|
VectorSubtract ( spot, from, deltaVector );
|
|
|
|
vectoangles ( deltaVector, angles );
|
|
|
|
delta = fabs( AngleDelta ( facing[PITCH], angles[PITCH] ) );
|
|
|
|
if ( delta > vFOV )
|
|
return 0.0f;
|
|
|
|
return ( ( vFOV - delta ) / vFOV );
|
|
}
|
|
|
|
#define MAX_INTEREST_DIST ( 256 * 256 )
|
|
/*
|
|
-------------------------
|
|
NPC_FindLocalInterestPoint
|
|
-------------------------
|
|
*/
|
|
|
|
int G_FindLocalInterestPoint( gentity_t *self )
|
|
{
|
|
int i, bestPoint = ENTITYNUM_NONE;
|
|
float dist, bestDist = Q3_INFINITE;
|
|
vec3_t diffVec, eyes;
|
|
|
|
CalcEntitySpot( self, SPOT_HEAD_LEAN, eyes );
|
|
for ( i = 0; i < level.numInterestPoints; i++ )
|
|
{
|
|
//Don't ignore portals? If through a portal, need to look at portal!
|
|
if ( gi.inPVS( level.interestPoints[i].origin, eyes ) )
|
|
{
|
|
VectorSubtract( level.interestPoints[i].origin, eyes, diffVec );
|
|
if ( (fabs(diffVec[0]) + fabs(diffVec[1])) / 2 < 48 &&
|
|
fabs(diffVec[2]) > (fabs(diffVec[0]) + fabs(diffVec[1])) / 2 )
|
|
{//Too close to look so far up or down
|
|
continue;
|
|
}
|
|
dist = VectorLengthSquared( diffVec );
|
|
//Some priority to more interesting points
|
|
//dist -= ((int)level.interestPoints[i].lookMode * 5) * ((int)level.interestPoints[i].lookMode * 5);
|
|
if ( dist < MAX_INTEREST_DIST && dist < bestDist )
|
|
{
|
|
if ( G_ClearLineOfSight( eyes, level.interestPoints[i].origin, self->s.number, MASK_OPAQUE ) )
|
|
{
|
|
bestDist = dist;
|
|
bestPoint = i;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if ( bestPoint != ENTITYNUM_NONE && level.interestPoints[bestPoint].target )
|
|
{
|
|
G_UseTargets2( self, self, level.interestPoints[bestPoint].target );
|
|
}
|
|
return bestPoint;
|
|
}
|
|
|
|
/*QUAKED target_interest (1 0.8 0.5) (-4 -4 -4) (4 4 4)
|
|
A point that a squadmate will look at if standing still
|
|
|
|
target - thing to fire when someone looks at this thing
|
|
*/
|
|
|
|
void SP_target_interest( gentity_t *self )
|
|
{//FIXME: rename point_interest
|
|
if(level.numInterestPoints >= MAX_INTEREST_POINTS)
|
|
{
|
|
gi.Printf("ERROR: Too many interest points, limit is %d\n", MAX_INTEREST_POINTS);
|
|
G_FreeEntity(self);
|
|
return;
|
|
}
|
|
|
|
VectorCopy(self->currentOrigin, level.interestPoints[level.numInterestPoints].origin);
|
|
|
|
if(self->target && self->target[0])
|
|
{
|
|
level.interestPoints[level.numInterestPoints].target = G_NewString( self->target );
|
|
}
|
|
|
|
level.numInterestPoints++;
|
|
|
|
G_FreeEntity(self);
|
|
}
|