qboolean NPC_FacePosition( vec3_t position, qboolean doPitch )
{
vec3_t muzzle;
vec3_t angles;
float yawDelta;
qboolean facing = qtrue;
//Get the positions
if ( NPC->client && (NPC->client->NPC_class == CLASS_RANCOR || NPC->client->NPC_class == CLASS_WAMPA) )// || NPC->client->NPC_class == CLASS_SAND_CREATURE) )
{
CalcEntitySpot( NPC, SPOT_ORIGIN, muzzle );
muzzle[2] += NPC->r.maxs[2] * 0.75f;
}
else if ( NPC->client && NPC->client->NPC_class == CLASS_GALAKMECH )
{
CalcEntitySpot( NPC, SPOT_WEAPON, muzzle );
}
else
{
CalcEntitySpot( NPC, SPOT_HEAD_LEAN, muzzle );//SPOT_HEAD
}
//Find the desired angles
GetAnglesForDirection( muzzle, position, angles );
NPCInfo->desiredYaw = AngleNormalize360( angles[YAW] );
NPCInfo->desiredPitch = AngleNormalize360( angles[PITCH] );
if ( NPC->enemy && NPC->enemy->client && NPC->enemy->client->NPC_class == CLASS_ATST )
{
// FIXME: this is kind of dumb, but it was the easiest way to get it to look sort of ok
NPCInfo->desiredYaw += flrand( -5, 5 ) + sin( level.time * 0.004f ) * 7;
NPCInfo->desiredPitch += flrand( -2, 2 );
}
//Face that yaw
NPC_UpdateAngles( qtrue, qtrue );
//Find the delta between our goal and our current facing
yawDelta = AngleNormalize360( NPCInfo->desiredYaw - ( SHORT2ANGLE( ucmd.angles[YAW] + client->ps.delta_angles[YAW] ) ) );
//See if we are facing properly
if ( fabs( yawDelta ) > VALID_ATTACK_CONE )
facing = qfalse;
if ( doPitch )
{
//Find the delta between our goal and our current facing
float currentAngles = ( SHORT2ANGLE( ucmd.angles[PITCH] + client->ps.delta_angles[PITCH] ) );
float pitchDelta = NPCInfo->desiredPitch - currentAngles;
//See if we are facing properly
if ( fabs( pitchDelta ) > VALID_ATTACK_CONE )
facing = qfalse;
}
return facing;
}
void NPC_GetFlyToLeader( vec3_t moveDir )
{
vec3_t dir, target, t_angs, t_dir;
float dist, groundDist = G_GroundDistance( NPC );
const float minyaw = 35 /*sina(96/176)*/, maxyaw = 75 /*90-15*/;
float speed, maxSpeed;
const float speedD = 8;
VectorSubtract( NPC->client->leader->r.currentOrigin, NPC->r.currentOrigin, dir );
dist = VectorLength( dir );
if ( dist > 96 && dist < 256 && groundDist > 96 )
{
return;
}
GetAnglesForDirection( NPC->client->leader->r.currentOrigin, NPC->r.currentOrigin, t_angs );
t_angs[PITCH] = flrand( minyaw, maxyaw ); //FIXME?
AngleVectors( t_angs, t_dir, NULL, NULL );
VectorMA( NPC->client->leader->r.currentOrigin, 176, t_dir, target );
VectorSubtract( target, NPC->r.currentOrigin, moveDir );
dist = VectorLength( moveDir );
VectorNormalize( moveDir );
maxSpeed = (dist>384)?NPCInfo->stats.runSpeed:NPCInfo->stats.walkSpeed;
speed = NPCInfo->flySpeed + NPCInfo->stats.acceleration;
speed *= sqrt(dist) / speedD;
if ( speed > maxSpeed )
speed = maxSpeed;
else if ( speed < 0 )
speed = 0;
NPCInfo->flySpeed = DotProduct( moveDir, NPCInfo->lastFlyDir ) * speed;
if ( NPCInfo->flySpeed < 0 )
NPCInfo->flySpeed = 0;
if ( DotProduct( NPC->client->ps.velocity, dir ) > dist )
speed = -speed;
VectorCopy( moveDir, NPCInfo->lastFlyDir );
VectorScale( moveDir, speed, moveDir );
}
void Sniper_FaceEnemy( void )
{
//FIXME: the ones behind kill holes are facing some arbitrary direction and not firing
//FIXME: If actually trying to hit enemy, don't fire unless enemy is at least in front of me?
//FIXME: need to give designers option to make them not miss first few shots
if ( NPC->enemy )
{
vec3_t muzzle, target, angles, forward, right, up;
//Get the positions
AngleVectors( NPC->client->ps.viewangles, forward, right, up );
CalcMuzzlePoint( NPC, forward, right, up, muzzle, 0 );
//CalcEntitySpot( NPC, SPOT_WEAPON, muzzle );
CalcEntitySpot( NPC->enemy, SPOT_ORIGIN, target );
if ( enemyDist > 65536 && NPCInfo->stats.aim < 5 )//is 256 squared, was 16384 (128*128)
{
if ( NPC->count < (5-NPCInfo->stats.aim) )
{//miss a few times first
if ( shoot && TIMER_Done( NPC, "attackDelay" ) && level.time >= NPCInfo->shotTime )
{//ready to fire again
qboolean aimError = qfalse;
qboolean hit = qtrue;
int tryMissCount = 0;
trace_t trace;
GetAnglesForDirection( muzzle, target, angles );
AngleVectors( angles, forward, right, up );
while ( hit && tryMissCount < 10 )
{
tryMissCount++;
if ( !Q_irand( 0, 1 ) )
{
aimError = qtrue;
if ( !Q_irand( 0, 1 ) )
{
VectorMA( target, NPC->enemy->maxs[2]*Q_flrand(1.5, 4), right, target );
}
else
{
VectorMA( target, NPC->enemy->mins[2]*Q_flrand(1.5, 4), right, target );
}
}
if ( !aimError || !Q_irand( 0, 1 ) )
{
if ( !Q_irand( 0, 1 ) )
{
VectorMA( target, NPC->enemy->maxs[2]*Q_flrand(1.5, 4), up, target );
}
else
{
VectorMA( target, NPC->enemy->mins[2]*Q_flrand(1.5, 4), up, target );
}
}
gi.trace( &trace, muzzle, vec3_origin, vec3_origin, target, NPC->s.number, MASK_SHOT, G2_NOCOLLIDE, 0 );
hit = Sniper_EvaluateShot( trace.entityNum );
}
NPC->count++;
}
else
{
if ( !enemyLOS )
{
NPC_UpdateAngles( qtrue, qtrue );
return;
}
}
}
else
{//based on distance, aim value, difficulty and enemy movement, miss
//FIXME: incorporate distance as a factor?
int missFactor = 8-(NPCInfo->stats.aim+g_spskill->integer) * 3;
if ( missFactor > ENEMY_POS_LAG_STEPS )
{
missFactor = ENEMY_POS_LAG_STEPS;
}
else if ( missFactor < 0 )
{//???
missFactor = 0 ;
}
VectorCopy( NPCInfo->enemyLaggedPos[missFactor], target );
}
GetAnglesForDirection( muzzle, target, angles );
}
else
{
target[2] += Q_flrand( 0, NPC->enemy->maxs[2] );
//CalcEntitySpot( NPC->enemy, SPOT_HEAD_LEAN, target );
GetAnglesForDirection( muzzle, target, angles );
}
NPCInfo->desiredYaw = AngleNormalize360( angles[YAW] );
NPCInfo->desiredPitch = AngleNormalize360( angles[PITCH] );
}
NPC_UpdateAngles( qtrue, qtrue );
}
