/*
================
CG_AddFuseSparkElements
================
*/
void CG_AddFuseSparkElements( localEntity_t *le ) {
float FUSE_SPARK_WIDTH = 1.0;
int step = 10;
float time;
float lifeFrac;
static vec3_t whiteColor = {1,1,1};
time = (float)(le->lastTrailTime);
while (time < cg.time) {
// calculate new position
BG_EvaluateTrajectory( &le->pos, time, le->refEntity.origin );
lifeFrac = (float)(time - le->startTime) / (float)(le->endTime - le->startTime);
//if (lifeFrac > 0.2) {
// add a trail
le->headJuncIndex = CG_AddTrailJunc( le->headJuncIndex, cgs.media.sparkParticleShader, time, STYPE_STRETCH, le->refEntity.origin, (int)(lifeFrac*(float)(le->endTime - le->startTime)/2.0),
1.0/*(1.0 - lifeFrac)*/, 0.0, FUSE_SPARK_WIDTH*(1.0 - lifeFrac), FUSE_SPARK_WIDTH*(1.0 - lifeFrac), TJFL_SPARKHEADFLARE, whiteColor, whiteColor, 0, 0 );
//}
time += step;
le->lastTrailTime = time;
}
}
/*
================
CG_AddClientCritter
================
*/
void CG_AddClientCritter( localEntity_t *le ) {
vec3_t newOrigin;
trace_t trace;
int time, step = 25, i;
vec3_t v, ang, v2, oDelta;
localEntity_t backup;
float oldSpeed, enemyDist, of;
vec3_t enemyPos;
float alpha;
if (cg_entities[le->ownerNum].currentState.otherEntityNum2 == cg.snap->ps.clientNum) {
VectorCopy( cg.snap->ps.origin, enemyPos );
enemyPos[2] += cg.snap->ps.viewheight;
} else {
VectorCopy( cg_entities[le->ownerNum].currentState.origin2, enemyPos );
}
VectorCopy( le->pos.trDelta, oDelta );
// vary the enemyPos to create a psuedo-randomness
of = (float)cg.time + le->startTime;
enemyPos[0] += 12 * (sin(of/100) * cos(of/78));
enemyPos[1] += 12 * (sin(of/70) * cos(of/82));
enemyPos[2] += 12 * (sin(of/67) * cos(of/98));
time = le->lastTrailTime+step;
while (time <= cg.time) {
if (time > le->refEntity.fadeStartTime) {
alpha = (float)(time - le->refEntity.fadeStartTime)/(float)(le->refEntity.fadeEndTime - le->refEntity.fadeStartTime);
if (alpha < 0) alpha = 0;
else if (alpha > 1) alpha = 1;
} else {
alpha = 1.0;
}
// calculate new position
BG_EvaluateTrajectory( &le->pos, time, newOrigin );
VectorSubtract( enemyPos, le->refEntity.origin, v );
enemyDist = VectorNormalize( v );
// trace a line from previous position to new position
CG_Trace( &trace, le->refEntity.origin, NULL, NULL, newOrigin, le->ownerNum, MASK_SHOT );
// if stuck, kill it
if (trace.startsolid || (trace.fraction < 1.0)) {
// kill it
CG_FreeLocalEntity( le );
return;
}
// moved some distance
VectorCopy( trace.endpos, le->refEntity.origin );
if (le->leType == LE_ZOMBIE_SPIRIT) {
le->headJuncIndex = CG_AddTrailJunc( le->headJuncIndex,
cgs.media.zombieSpiritTrailShader,
time,
STYPE_STRETCH,
le->refEntity.origin,
(int)le->effectWidth, // trail life
0.3 * alpha,
0.0,
le->radius,
0,
0,//TJFL_FIXDISTORT,
colorWhite,
colorWhite,
1.0, 1 );
}
// tracking factor
if (le->leType == LE_ZOMBIE_BAT)
le->bounceFactor = 3.0*(float)step/1000.0;
else
le->bounceFactor = 5.0*(float)step/1000.0;
oldSpeed = VectorLength( le->pos.trDelta );
// track the enemy
backup = *le;
VectorSubtract( enemyPos, le->refEntity.origin, v );
enemyDist = VectorNormalize( v );
if (alpha > 0.5 && (le->lastSpiritDmgTime < time - 100) && enemyDist < 24) {
// inflict the damage!
CG_ClientDamage( cg_entities[le->ownerNum].currentState.otherEntityNum2, le->ownerNum, CLDMG_SPIRIT );
le->lastSpiritDmgTime = time;
}
VectorMA( le->pos.trDelta, le->bounceFactor*oldSpeed, v, le->pos.trDelta );
//VectorCopy( v, le->pos.trDelta );
if (VectorLength(le->pos.trDelta) < 1) {
CG_FreeLocalEntity( le );
return;
}
le->bounceFactor = 5.0*(float)step/1000.0; // avoidance factor
// the intersection is a fraction of the frametime
le->pos.trTime = time;
VectorCopy( le->refEntity.origin, le->pos.trBase );
VectorNormalize( le->pos.trDelta );
VectorScale( le->pos.trDelta, oldSpeed, le->pos.trDelta );
// now trace ahead of time, if we're going to hit something, then avoid it
// only avoid dangers if we don't have direct sight to the enemy
trap_CM_BoxTrace( &trace, le->refEntity.origin, enemyPos, NULL, NULL, 0, MASK_SOLID );
if (trace.fraction < 1.0) {
BG_EvaluateTrajectory( &le->pos, time+1000, newOrigin );
// if we would go passed the enemy, don't bother
if (VectorDistance( le->refEntity.origin, enemyPos) > VectorDistance( le->refEntity.origin, newOrigin )) {
trap_CM_BoxTrace( &trace, le->refEntity.origin, newOrigin, NULL, NULL, 0, MASK_SOLID );
if (trace.fraction < 1.0) {
// make sure we are not heading away from the enemy too much
VectorNormalize2( le->pos.trDelta, v2 );
if (DotProduct( v, v2 ) > 0.7) {
// avoid world geometry
backup = *le;
le->bounceFactor = (1.0 - trace.fraction)*10.0*(float)step/1000.0; // tracking and avoidance factor
// reflect the velocity on the trace plane
VectorMA( le->pos.trDelta, le->bounceFactor*oldSpeed, trace.plane.normal, le->pos.trDelta );
if (VectorLength(le->pos.trDelta) < 1) {
CG_FreeLocalEntity( le );
return;
}
// the intersection is a fraction of the frametime
le->pos.trTime = time;
VectorCopy( le->refEntity.origin, le->pos.trBase );
VectorNormalize( le->pos.trDelta );
VectorScale( le->pos.trDelta, oldSpeed, le->pos.trDelta );
//
// double check end velocity
VectorNormalize2( le->pos.trDelta, v2 );
if (DotProduct( v, v2 ) <= 0.2) {
// restore
*le = backup;
}
}
}
}
}
// set the angles
VectorNormalize2( le->pos.trDelta, v );
// HACK!!! skull model is back-to-front, need to fix
if (le->leType == LE_ZOMBIE_SPIRIT)
VectorInverse( v );
vectoangles( v, ang );
AnglesToAxis( ang, le->refEntity.axis );
// lean when turning
if (le->leType == LE_ZOMBIE_BAT) {
VectorSubtract( le->pos.trDelta, oDelta, v2 );
ang[ROLL] = -5.0 * DotProduct( le->refEntity.axis[1], v2 );
if (fabs(ang[ROLL]) > 80) {
if (ang[ROLL] > 80) ang[ROLL] = 80;
else ang[ROLL] = -80;
}
}
AnglesToAxis( ang, le->refEntity.axis );
// HACK: the skull is slightly higher than the origin
if (le->leType == LE_ZOMBIE_SPIRIT) {
// set the size scale
for (i=0; i<3; i++)
VectorScale( le->refEntity.axis[i], 0.35, le->refEntity.axis[i] );
VectorMA( le->refEntity.origin, -10, le->refEntity.axis[2], le->refEntity.origin );
}
le->lastTrailTime = time;
time += step;
}
// Bats, set the frame
if (le->leType == LE_ZOMBIE_BAT) {
#define BAT_ANIM_FRAMETIME 30
le->refEntity.frame = (cg.time/BAT_ANIM_FRAMETIME+1)%19;
le->refEntity.oldframe = (cg.time/BAT_ANIM_FRAMETIME)%19;
le->refEntity.backlerp = 1.0 - ((float)(cg.time%BAT_ANIM_FRAMETIME)/(float)BAT_ANIM_FRAMETIME);
}
// add the sound
if (le->loopingSound) {
if (cg.time > le->refEntity.fadeStartTime)
trap_S_AddLoopingSound( 0, le->refEntity.origin, vec3_origin, le->loopingSound, 255 - (int)(255.0 * (float)(cg.time - le->refEntity.fadeStartTime) / (float)(le->refEntity.fadeEndTime - le->refEntity.fadeStartTime)) );
else if (le->startTime + 1000 > cg.time)
trap_S_AddLoopingSound( 0, le->refEntity.origin, vec3_origin, le->loopingSound, (int)(255.0 * (float)(cg.time - le->startTime) / 1000.0) );
else
trap_S_AddLoopingSound( 0, le->refEntity.origin, vec3_origin, le->loopingSound, 255);
}
trap_R_AddRefEntityToScene( &le->refEntity );
/*
// HACK: the skull is slightly higher than the origin
if (le->leType == LE_ZOMBIE_SPIRIT) {
// set the size scale
for (i=0; i<3; i++)
VectorScale( le->refEntity.axis[i], 1.0/0.35, le->refEntity.axis[i] );
VectorMA( le->refEntity.origin, 10, le->refEntity.axis[2], le->refEntity.origin );
}
*/
// Bats, add the flame
if (le->leType == LE_ZOMBIE_BAT) {
// float lightSize, alpha;
//
le->refEntity.shaderRGBA[3] = 255;
VectorNormalize2( le->pos.trDelta, v );
VectorInverse( v );
v[2] += 1;
VectorNormalize2( v, le->refEntity.fireRiseDir );
le->refEntity.customShader = cgs.media.onFireShader2;
trap_R_AddRefEntityToScene( &le->refEntity );
le->refEntity.shaderTime = 1434;
trap_R_AddRefEntityToScene( &le->refEntity );
// le->refEntity.customShader = cgs.media.onFireShader;
// le->refEntity.shaderTime = 0;
// trap_R_AddRefEntityToScene( &le->refEntity );
le->refEntity.customShader = 0;
le->refEntity.shaderTime = 0;
/*
// drop a dlight
lightSize = 1.0 + 0.2*(sin(1.0*cg.time/50.0) * cos(1.0*cg.time/43.0));
alpha = 0.2 * (lightSize / 1.2);
trap_R_AddLightToScene( le->refEntity.origin, 150.0 + 80.0*lightSize, 1.000000*alpha, 0.603922*alpha, 0.207843*alpha, 0 );
// add some sound
trap_S_AddLoopingSound( -1, le->refEntity.origin, vec3_origin, cgs.media.flameSound, 100 );
trap_S_AddLoopingSound( -1, le->refEntity.origin, vec3_origin, cgs.media.flameBlowSound, 100 );
*/
}
}
/*
===============
CG_DynamicLightningBolt
===============
*/
void CG_DynamicLightningBolt( qhandle_t shader, vec3_t start, vec3_t pend, int numBolts, float maxWidth, qboolean fade, float startAlpha, int recursion, int randseed ) {
int i,j;
float segMin, segMax, length;
float thisSeg, distLeft, thisWidth;
vec3_t pos, vec, end;
int curJunc;
vec3_t c, bc = {0.8,0.9,1};
const float rndSize = 12.0;
const float maxSTscale = 30.0;
float stScale;
float alpha, viewDist;
const int trailLife = 1;
int forks = 0;
#define STYPE_LIGHTNING STYPE_REPEAT // ST mapping for trail
#define FORK_CHANCE 0.5
#define VIEW_SCALE_DIST 128
VectorCopy( pend, end ); // need this so recursive calls don't override stacked endpoints
// HACK, updated sprite, so downscale all widths
maxWidth *= 0.6;
length = Distance( start, end );
//if (length > 128) {
segMin = length / 10.0;
if ( segMin < 8 ) {
segMin = 8;
}
segMax = segMin * 1.2;
//segMax = length / 30.0;
//} else {
// segMin = length / 3.0;
// segMax = length / 1.5;
//}
if ( startAlpha > 1.0 ) {
startAlpha = 1.0;
}
alpha = startAlpha; // change only if fading
for ( i = 0; i < numBolts; i++ )
{
distLeft = length;
VectorCopy( start, pos );
// drop a start junction
stScale = maxSTscale * ( 0.5 + lt_random( randseed,i + 1 ) * 0.5 );
if ( fade ) {
if ( startAlpha == 1.0 ) {
alpha = startAlpha * ( distLeft / length );
} else {
alpha = 1.0 - 1.0 * fabs( ( 1.0 - ( distLeft / length ) ) - startAlpha );
if ( alpha < 0 ) {
alpha = 0;
}
if ( alpha > 1 ) {
alpha = 1;
}
}
}
thisWidth = maxWidth * ( 0.5 + 0.5 * alpha );
if ( ( viewDist = VectorDistance( pos, cg.refdef.vieworg ) ) < VIEW_SCALE_DIST ) {
thisWidth *= 0.5 + ( 0.5 * ( viewDist / VIEW_SCALE_DIST ) );
if ( thisWidth < 4.0 && thisWidth < maxWidth ) {
thisWidth = 4.0;
}
} else { // scale it wider with distance so it remains visible
thisWidth *= 0.5 + ( 0.5 * ( viewDist / VIEW_SCALE_DIST ) );
if ( thisWidth > maxWidth * 2 ) {
// thisWidth > maxWidth*2;
thisWidth = maxWidth * 2;
}
}
//
VectorScale( bc, alpha, c );
c[2] *= 1.0 + ( 1.0 - alpha );
if ( c[2] > 1.0 ) {
c[2] = 1.0;
}
//
curJunc = CG_AddTrailJunc( 0, shader, cg.time, STYPE_LIGHTNING, pos, trailLife, 1, 1, thisWidth, thisWidth, TJFL_NOCULL, c, c, stScale, 20.0 );
while ( distLeft > 0 )
{ // create this bolt
thisSeg = segMin + ( segMax - segMin ) * lt_random( randseed,2 );
thisWidth = maxWidth * ( 0.5 + 0.5 * alpha );
if ( thisSeg >= distLeft - rndSize ) { // go directly to the end point
VectorCopy( end, pos );
thisWidth *= 0.6;
} else if ( (float)distLeft / length < 0.3 ) {
VectorSubtract( end, pos, vec );
VectorNormalize( vec );
VectorMA( pos, thisSeg, vec, pos );
// randomize the position a bit
thisSeg *= 0.05;
if ( thisSeg > rndSize ) {
thisSeg = rndSize;
}
for ( j = 0; j < 3; j++ ) {
viewDist = lt_crandom( randseed * randseed,j * j + i * i + 3 );
if ( fabs( viewDist ) < 0.5 ) {
if ( viewDist > 0 ) {
viewDist = 0.5;
} else { viewDist = -0.5;}
}
pos[j] += viewDist * thisSeg;
}
} else {
VectorSubtract( end, pos, vec );
VectorNormalize( vec );
VectorMA( pos, thisSeg, vec, pos );
// randomize the position a bit
thisSeg *= 0.25;
if ( thisSeg > rndSize ) {
thisSeg = rndSize;
}
for ( j = 0; j < 3; j++ ) {
viewDist = lt_crandom( randseed,j * j + i * i + 3 );
if ( fabs( viewDist ) < 0.5 ) {
if ( viewDist > 0 ) {
viewDist = 0.5;
} else { viewDist = -0.5;}
}
pos[j] += viewDist * thisSeg;
}
}
distLeft = Distance( pos, end );
if ( fade ) {
if ( startAlpha == 1.0 ) {
alpha = startAlpha * ( distLeft / length );
} else {
alpha = 1.0 - 1.0 * fabs( ( 1.0 - ( distLeft / length ) ) - startAlpha );
if ( alpha < 0 ) {
alpha = 0;
}
if ( alpha > 1 ) {
alpha = 1;
}
}
}
//thisWidth *= alpha;
if ( ( viewDist = VectorDistance( pos, cg.refdef.vieworg ) ) < VIEW_SCALE_DIST ) {
thisWidth *= 0.5 + ( 0.5 * ( viewDist / VIEW_SCALE_DIST ) );
if ( thisWidth < 4.0 && thisWidth < maxWidth ) {
thisWidth = 4.0;
}
} else { // scale it wider with distance so it remains visible
thisWidth *= 0.5 + ( 0.5 * ( viewDist / VIEW_SCALE_DIST ) );
if ( thisWidth > maxWidth * 2 ) {
// thisWidth > maxWidth*2;
thisWidth = maxWidth * 2;
}
}
//
VectorScale( bc, alpha, c );
c[2] *= 1.0 + ( 1.0 - alpha );
if ( c[2] > 1.0 ) {
c[2] = 1.0;
}
//
//stScale = maxSTscale * (0.4 + lt_random(randseed,1)*0.6);
curJunc = CG_AddTrailJunc( curJunc, shader, cg.time, STYPE_LIGHTNING, pos, trailLife, 1, 1, thisWidth, thisWidth, TJFL_NOCULL, c, c, stScale, 20.0 );
// fork from here?
if ( thisWidth < 4 && distLeft > 10 && recursion < 3 && forks < 3 && lt_random( randseed,383 + i + forks ) < FORK_CHANCE ) {
vec3_t fend;
forks++;
VectorSet( fend,
distLeft * 0.3 * lt_crandom( randseed,56 + i + forks ),
distLeft * 0.3 * lt_crandom( randseed,160 + i + forks ),
distLeft * 0.3 * lt_crandom( randseed,190 + i + forks ) );
VectorAdd( fend, end, fend );
VectorSubtract( fend, pos, fend );
VectorMA( pos, 0.2 + 0.7 * lt_random( randseed,6 + i + forks ), fend, fend );
//if (recursion > 0 && recursion < 2) {
// CG_DynamicLightningBolt( cgs.media.lightningBoltShader, pos, fend, 1, maxWidth, qtrue, alpha, recursion, randseed );
// return; // divert bolt rather than split
//} else {
CG_DynamicLightningBolt( shader, pos, fend, 1, maxWidth, qtrue, alpha, recursion + 1, randseed + 765 );
//}
}
randseed++;
}
}
}
// use this to change between particle and trail code
//#define BLOOD_PARTICLE_TRAIL
void CG_BloodTrail( localEntity_t *le ) {
int t;
int t2;
int step;
vec3_t newOrigin;
#ifndef BLOOD_PARTICLE_TRAIL
static vec3_t col = {1,1,1};
#endif
centity_t *cent;
cent = &cg_entities[le->ownerNum];
if ( !cg_blood.integer ) {
return;
}
// step = 150;
#ifdef BLOOD_PARTICLE_TRAIL
step = 10;
#else
// time it takes to move 3 units
step = (1000*3)/VectorLength(le->pos.trDelta);
#endif
if (cent && cent->currentState.aiChar == AICHAR_ZOMBIE)
step = 30;
t = step * ( (cg.time - cg.frametime + step ) / step );
t2 = step * ( cg.time / step );
for ( ; t <= t2; t += step ) {
BG_EvaluateTrajectory( &le->pos, t, newOrigin );
#ifdef BLOOD_PARTICLE_TRAIL
CG_Particle_Bleed (cgs.media.smokePuffShader, newOrigin, vec3_origin, 0, 500+rand()%200);
#else
if (cent && cent->currentState.aiChar == AICHAR_ZOMBIE)
{
CG_Particle_Bleed (cgs.media.smokePuffShader, newOrigin, vec3_origin, 1, 500+rand()%200);
}
else
// Ridah, blood trail using trail code (should be faster since we don't have to spawn as many)
le->headJuncIndex = CG_AddTrailJunc( le->headJuncIndex,
cgs.media.bloodTrailShader,
t,
STYPE_STRETCH,
newOrigin,
180,
1.0, // start alpha
0.0, // end alpha
12.0,
12.0,
TJFL_NOCULL,
col, col,
0, 0 );
#endif
}
}
// use this to change between particle and trail code
//#define BLOOD_PARTICLE_TRAIL
void CG_BloodTrail( localEntity_t *le )
{
int t;
int t2;
int step;
vec3_t newOrigin;
float vl; //bani
#ifndef BLOOD_PARTICLE_TRAIL
static vec3_t col = { 1, 1, 1 };
#endif
centity_t *cent;
cent = &cg_entities[ le->ownerNum ];
if ( !cg_blood.integer )
{
return;
}
// step = 150;
#ifdef BLOOD_PARTICLE_TRAIL
step = 10;
#else
// time it takes to move 3 units
vl = VectorLength( le->pos.trDelta );
// rain - need to check FLT_EPSILON because floating-point math sucks <3
if ( vl < FLT_EPSILON )
{
return;
}
step = ( 1000 * 3 ) / vl;
//bani - avoid another div by 0
//zinx - check against <= 0 instead of == 0, because it can still wrap; (3000 / (FLT_EPSILON*11.7f)) < 0
if ( step <= 0 )
{
return;
}
#endif
t = step * ( ( cg.time - cg.frametime + step ) / step );
t2 = step * ( cg.time / step );
for ( ; t <= t2; t += step )
{
BG_EvaluateTrajectory( &le->pos, t, newOrigin, qfalse, -1 );
#ifdef BLOOD_PARTICLE_TRAIL
CG_Particle_Bleed( cgs.media.smokePuffShader, newOrigin, vec3_origin, 0, 500 + rand() % 200 );
#else
// Ridah, blood trail using trail code (should be faster since we don't have to spawn as many)
le->headJuncIndex = CG_AddTrailJunc( le->headJuncIndex, le, // rain - zinx's trail fix
cgs.media.bloodTrailShader, t, STYPE_STRETCH, newOrigin, 180, 1.0, // start alpha
0.0, // end alpha
12.0, 12.0, TJFL_NOCULL, col, col, 0, 0 );
#endif
}
}