// Camera is less than size of CPlayerData away from
void SetCameraPos (CFixVector *vCameraPos, CObject *objP)
{
CFixVector vPlayerCameraOffs = *vCameraPos - objP->info.position.vPos;
int count = 0;
fix xCameraPlayerDist;
fix xFarScale;
xCameraPlayerDist = vPlayerCameraOffs.Mag();
if (xCameraPlayerDist < xCameraToPlayerDistGoal) { // 2*objP->info.xSize) {
// Camera is too close to CPlayerData CObject, so move it away.
tFVIQuery fq;
tFVIData hit_data;
CFixVector local_p1;
if (vPlayerCameraOffs.IsZero())
vPlayerCameraOffs[X] += I2X (1)/16;
hit_data.hit.nType = HIT_WALL;
xFarScale = I2X (1);
while ((hit_data.hit.nType != HIT_NONE) && (count++ < 6)) {
CFixVector closer_p1;
CFixVector::Normalize(vPlayerCameraOffs);
vPlayerCameraOffs *= xCameraToPlayerDistGoal;
fq.p0 = &objP->info.position.vPos;
closer_p1 = objP->info.position.vPos + vPlayerCameraOffs; // This is the actual point we want to put the camera at.
vPlayerCameraOffs *= xFarScale; // ...but find a point 50% further away...
local_p1 = objP->info.position.vPos + vPlayerCameraOffs; // ...so we won't have to do as many cuts.
fq.p1 = &local_p1;
fq.startSeg = objP->info.nSegment;
fq.radP0 =
fq.radP1 = 0;
fq.thisObjNum = objP->Index ();
fq.ignoreObjList = NULL;
fq.flags = 0;
fq.bCheckVisibility = false;
FindVectorIntersection (&fq, &hit_data);
if (hit_data.hit.nType == HIT_NONE)
*vCameraPos = closer_p1;
else {
vPlayerCameraOffs = CFixVector::Random();
xFarScale = I2X (3) / 2;
}
}
}
}
CFixVector *TransformGunPoint (CObject *objP, CFixVector *vGunPoints, int nGun,
fix xDelay, ubyte nLaserType, CFixVector *vMuzzle, CFixMatrix *mP)
{
int bSpectate = SPECTATOR (objP);
tObjTransformation* posP = bSpectate ? &gameStates.app.playerPos : &objP->info.position;
CFixMatrix m, *viewP;
CFixVector v [2];
#if FULL_COCKPIT_OFFS
int bLaserOffs = ((gameStates.render.cockpit.nType == CM_FULL_COCKPIT) &&
(objP->Index () == LOCALPLAYER.nObject));
#else
int bLaserOffs = 0;
#endif
if (nGun < 0) { // use center between gunPoints nGun and nGun + 1
*v = vGunPoints [-nGun] + vGunPoints [-nGun - 1];
// VmVecScale (VmVecAdd (v, vGunPoints - nGun, vGunPoints - nGun - 1), I2X (1) / 2);
*v *= (I2X (1) / 2);
}
else {
v [0] = vGunPoints [nGun];
if (bLaserOffs)
v [0] += posP->mOrient.UVec () * LASER_OFFS;
}
if (!mP)
mP = &m;
if (bSpectate) {
viewP = mP;
*viewP = posP->mOrient.Transpose ();
}
else
viewP = objP->View ();
v[1] = *viewP * v [0];
memcpy (mP, &posP->mOrient, sizeof (CFixMatrix));
if (nGun < 0)
v[1] += (*mP).UVec () * (-2 * v->Mag ());
(*vMuzzle) = posP->vPos + v [1];
// If supposed to fire at a delayed time (xDelay), then move this point backwards.
if (xDelay)
*vMuzzle += mP->FVec () * (-FixMul (xDelay, WI_speed (nLaserType, gameStates.app.nDifficultyLevel)));
return vMuzzle;
}
int CParticle::Create (CFixVector *vPos, CFixVector *vDir, CFixMatrix *mOrient,
short nSegment, int nLife, int nSpeed, char nParticleSystemType, char nClass,
float nScale, tRgbaColorf *colorP, int nCurTime, int bBlowUp,
float fBrightness, CFixVector *vEmittingFace)
{
static tRgbaColorf defaultColor = {1,1,1,1};
tRgbaColorf color;
CFixVector vDrift;
int nRad, nFrames, nType = particleImageManager.GetType (nParticleSystemType);
if (nScale < 0)
nRad = (int) -nScale;
else if (gameOpts->render.particles.bSyncSizes)
nRad = (int) PARTICLE_SIZE (gameOpts->render.particles.nSize [0], nScale);
else
nRad = (int) nScale;
if (!nRad)
nRad = I2X (1);
m_nType = nType;
m_bEmissive = (nParticleSystemType == LIGHT_PARTICLES);
m_nClass = nClass;
m_nSegment = nSegment;
m_nBounce = 0;
color = colorP ? *colorP : defaultColor;
m_color [0] =
m_color [1] = color;
if ((nType == BULLET_PARTICLES) || (nType == BUBBLE_PARTICLES)) {
m_bBright = 0;
m_nFade = -1;
}
else {
m_bBright = (nType == SMOKE_PARTICLES) ? (rand () % 50) == 0 : 0;
if (colorP) {
if (nType != LIGHT_PARTICLES) {
m_color [0].red *= RANDOM_FADE;
m_color [0].green *= RANDOM_FADE;
m_color [0].blue *= RANDOM_FADE;
}
m_nFade = 0;
}
else {
m_color [0].red = 1.0f;
m_color [0].green = 0.5f;
m_color [0].blue = 0.0f;
m_nFade = 2;
}
if (m_bEmissive)
m_color [0].alpha = (float) (SMOKE_START_ALPHA + 64) / 255.0f;
else if (nParticleSystemType != GATLING_PARTICLES) {
if (!colorP)
m_color [0].alpha = (float) (SMOKE_START_ALPHA + randN (64)) / 255.0f;
else {
if (colorP->alpha < 0)
m_color [0].alpha = -colorP->alpha;
else {
if (2 == (m_nFade = (char) colorP->alpha)) {
m_color [0].red = 1.0f;
m_color [0].green = 0.5f;
m_color [0].blue = 0.0f;
}
m_color [0].alpha = (float) (SMOKE_START_ALPHA + randN (64)) / 255.0f;
}
}
}
#if 1
if (gameOpts->render.particles.bDisperse && !m_bBright) {
fBrightness = 1.0f - fBrightness;
m_color [0].alpha += fBrightness * fBrightness / 8.0f;
}
#endif
}
//nSpeed = (int) (sqrt (nSpeed) * (float) I2X (1));
nSpeed *= I2X (1);
if (vDir) {
CAngleVector a;
CFixMatrix m;
float d;
a [PA] = randN (I2X (1) / 4) - I2X (1) / 8;
a [BA] = randN (I2X (1) / 4) - I2X (1) / 8;
a [HA] = randN (I2X (1) / 4) - I2X (1) / 8;
m = CFixMatrix::Create (a);
vDrift = m * (*vDir);
CFixVector::Normalize (vDrift);
d = (float) CFixVector::DeltaAngle (vDrift, *vDir, NULL);
if (d) {
d = (float) exp ((I2X (1) / 8) / d);
nSpeed = (fix) ((float) nSpeed / d);
}
#if 0
if (!colorP) // hack for static particleSystem w/o user defined color
m_color [0].green =
m_color [0].blue = 1.0f;
#endif
vDrift *= nSpeed;
if ((nType == SMOKE_PARTICLES) || (nType == BUBBLE_PARTICLES))
m_vDir = *vDir * (I2X (3) / 4 + I2X (randN (16)) / 64);
else
m_vDir = *vDir;
m_bHaveDir = 1;
}
else {
CFixVector vOffs;
vDrift [X] = nSpeed - randN (2 * nSpeed);
vDrift [Y] = nSpeed - randN (2 * nSpeed);
vDrift [Z] = nSpeed - randN (2 * nSpeed);
vOffs = vDrift;
m_vDir.SetZero ();
m_bHaveDir = 1;
}
m_vDrift = vDrift;
if (vEmittingFace)
m_vPos = *RandomPointOnQuad (vEmittingFace, vPos);
else if (nType != BUBBLE_PARTICLES)
m_vPos = *vPos + vDrift * (I2X (1) / 64);
else {
//m_vPos = *vPos + vDrift * (I2X (1) / 32);
nSpeed = vDrift.Mag () / 16;
vDrift = CFixVector::Avg ((*mOrient).RVec () * (nSpeed - randN (2 * nSpeed)), (*mOrient).UVec () * (nSpeed - randN (2 * nSpeed)));
m_vPos = *vPos + vDrift + (*mOrient).FVec () * (I2X (1) / 2 - randN (I2X (1)));
#if 1
m_vDrift.SetZero ();
#else
CFixVector::Normalize (m_vDrift);
m_vDrift *= I2X (32);
#endif
}
if ((nType != BUBBLE_PARTICLES) && mOrient) {
CAngleVector vRot;
CFixMatrix mRot;
vRot [BA] = 0;
vRot [PA] = 2048 - ((d_rand () % 9) * 512);
vRot [HA] = 2048 - ((d_rand () % 9) * 512);
mRot = CFixMatrix::Create (vRot);
m_mOrient = *mOrient * mRot;
}
if (nLife < 0)
nLife = -nLife;
if (nType == SMOKE_PARTICLES) {
if (gameOpts->render.particles.bDisperse)
nLife = (nLife * 2) / 3;
nLife = nLife / 2 + randN (nLife / 2);
}
m_nLife =
m_nTTL = nLife;
m_nMoved = nCurTime;
m_nDelay = 0; //bStart ? randN (nLife) : 0;
if (nType == SMOKE_PARTICLES)
nRad += randN (nRad);
else if (nType == BUBBLE_PARTICLES)
nRad = nRad / 10 + randN (9 * nRad / 10);
else
nRad *= 2;
if ((m_bBlowUp = bBlowUp)) {
m_nRad = nRad / 2;
m_nWidth =
m_nHeight = m_nRad;
m_nRad += m_nRad / bBlowUp;
}
else {
m_nWidth =
m_nHeight = nRad;
m_nRad = nRad / 2;
}
nFrames = nParticleFrames [0][nType];
if (nType == BULLET_PARTICLES) {
m_nFrame = 0;
m_nRotFrame = 0;
m_nOrient = 3;
}
else if (nType == BUBBLE_PARTICLES) {
m_nFrame = rand () % (nFrames * nFrames);
m_nRotFrame = 0;
m_nOrient = 0;
}
else if (nType == LIGHT_PARTICLES) {
m_nFrame = 0;
m_nRotFrame = 0;
m_nOrient = 0;
}
else {
m_nFrame = rand () % (nFrames * nFrames);
m_nRotFrame = m_nFrame / 2;
m_nOrient = rand () % 4;
}
#if 1
if (m_bEmissive)
m_color [0].alpha *= ParticleBrightness (colorP);
else if (nParticleSystemType == SMOKE_PARTICLES)
m_color [0].alpha /= colorP ? color.red + color.green + color.blue + 2 : 2;
else if (nParticleSystemType == BUBBLE_PARTICLES)
m_color [0].alpha /= 2;
else if (nParticleSystemType == LIGHT_PARTICLES)
m_color [0].alpha /= 5;
# if 0
else if (nParticleSystemType == GATLING_PARTICLES)
;//m_color [0].alpha /= 6;
# endif
#endif
return 1;
}
