CairoParticleSystem *cd_icon_effect_init_stars (Icon *pIcon, CairoDock *pDock, double dt)
{
if (myData.iStarTexture == 0)
myData.iStarTexture = cd_icon_effect_load_star_texture ();
double fMaxScale = (pDock->bAtBottom ? 1. : cairo_dock_get_max_scale (CAIRO_CONTAINER (pDock)));
CairoParticleSystem *pStarParticleSystem = cairo_dock_create_particle_system (myConfig.iNbStarParticles, myData.iStarTexture, pIcon->fWidth * pIcon->fScale, pIcon->fHeight * fMaxScale);
g_return_val_if_fail (pStarParticleSystem != NULL, NULL);
pStarParticleSystem->dt = dt;
pStarParticleSystem->bAddLuminance = TRUE;
static double a = .4;
static double epsilon = 0.1;
double r = myConfig.iStarParticleSize;
double fBlend;
CairoParticle *p;
int i;
for (i = 0; i < myConfig.iNbStarParticles; i ++)
{
p = &pStarParticleSystem->pParticles[i];
p->x = 2 * g_random_double () - 1;
p->y = g_random_double ();
p->z = 2 * g_random_double () - 1;
p->fWidth = r*(p->z + 1)/2 * g_random_double ();
p->fHeight = p->fWidth;
p->vx = 0.;
p->vy = 0.;
p->iInitialLife = myConfig.iStarDuration / dt;
p->iLife = p->iInitialLife * (g_random_double () + a) / (1 + a);
if (myConfig.bMysticalStars)
{
p->color[0] = g_random_double ();
p->color[1] = g_random_double ();
p->color[2] = g_random_double ();
}
else
{
fBlend = g_random_double ();
p->color[0] = fBlend * myConfig.pStarColor1[0] + (1 - fBlend) * myConfig.pStarColor2[0];
p->color[1] = fBlend * myConfig.pStarColor1[1] + (1 - fBlend) * myConfig.pStarColor2[1];
p->color[2] = fBlend * myConfig.pStarColor1[2] + (1 - fBlend) * myConfig.pStarColor2[2];
}
p->color[3] = 0.; // on va gerer nous-mêmes la transparence.
p->fOscillation = 0.;
p->fOmega = 0.;
p->fSizeFactor = 1.;
p->fResizeSpeed = - 1. / myConfig.iStarDuration * dt; // zoom 0 a la fin.
}
return pStarParticleSystem;
}
static gboolean init (Icon *pIcon, CairoDock *pDock, double dt, CDIconEffectData *pData)
{
if (pData->pRainSystem != NULL)
return TRUE;
if (myData.iRainTexture == 0)
myData.iRainTexture = cd_icon_effect_load_rain_texture ();
double fMaxScale = 1. + myIconsParam.fAmplitude * pDock->fMagnitudeMax;
CairoParticleSystem *pParticleSystem = cairo_dock_create_particle_system (myConfig.iNbRainParticles, myData.iRainTexture, pIcon->fWidth * pIcon->fScale, pIcon->fHeight * fMaxScale);
g_return_val_if_fail (pParticleSystem != NULL, FALSE);
pParticleSystem->dt = dt;
if (myConfig.bRotateEffects && ! pDock->container.bDirectionUp && pDock->container.bIsHorizontal)
pParticleSystem->bDirectionUp = FALSE;
double a = myConfig.fRainParticleSpeed;
static double epsilon = 0.1;
double r = myConfig.iRainParticleSize;
double fBlend;
double vmax = 1. / myConfig.iRainDuration;
CairoParticle *p;
int i;
for (i = 0; i < myConfig.iNbRainParticles; i ++)
{
p = &(pParticleSystem->pParticles[i]);
p->x = 2 * g_random_double () - 1;
p->y = 1.;
p->z = 2 * g_random_double () - 1;
p->fWidth = r*(p->z + 2)/3 * g_random_double ();
p->fHeight = p->fWidth;
p->vx = 0.;
p->vy = -a * vmax * ((p->z + 1)/2 * g_random_double () + epsilon) * dt;
p->iInitialLife = MIN (-1./ p->vy, ceil (myConfig.iRainDuration / dt));
p->iLife = p->iInitialLife;
{
fBlend = g_random_double ();
p->color[0] = fBlend * myConfig.pRainColor1[0] + (1 - fBlend) * myConfig.pRainColor2[0];
p->color[1] = fBlend * myConfig.pRainColor1[1] + (1 - fBlend) * myConfig.pRainColor2[1];
p->color[2] = fBlend * myConfig.pRainColor1[2] + (1 - fBlend) * myConfig.pRainColor2[2];
}
p->color[3] = 0.;
p->fOscillation = 0.;
p->fOmega = 0.; // tr/s
p->fSizeFactor = 1.;
p->fResizeSpeed = 0.; // zoom 1 a la fin.
}
pData->pRainSystem = pParticleSystem;
return TRUE;
}
static gboolean init (Icon *pIcon, CairoDock *pDock, double dt, CDIconEffectData *pData)
{
if (pData->pStormSystem != NULL)
return TRUE;
if (myData.iFireTexture == 0)
myData.iFireTexture = cd_icon_effect_load_storm_texture ();
double fMaxScale = 1. + myIconsParam.fAmplitude * pDock->fMagnitudeMax;
CairoParticleSystem *pParticleSystem = cairo_dock_create_particle_system (myConfig.iNbStormParticles, myData.iFireTexture, pIcon->fWidth * pIcon->fScale, pIcon->fHeight * fMaxScale);
g_return_val_if_fail (pParticleSystem != NULL, FALSE);
pParticleSystem->dt = dt;
if (myConfig.bRotateEffects && ! pDock->container.bDirectionUp && pDock->container.bIsHorizontal)
pParticleSystem->bDirectionUp = FALSE;
double r = myConfig.iStormParticleSize;
double vmax = 1. / myConfig.iStormDuration * 2;
double fBlend;
CairoParticle *p;
int i;
for (i = 0; i < myConfig.iNbStormParticles; i ++)
{
p = &pParticleSystem->pParticles[i];
p->x = 0.; // on le calculera a la main.
p->y = -1. * i /myConfig.iNbStormParticles + .01 * (2 * g_random_double () - 1);
p->z = 1.; // idem.
p->fWidth = r * (1 + ar * (2 * g_random_double () - 1));
p->fHeight = p->fWidth;
p->vx = ad * (2 * g_random_double () - 1); // utilisation detournee : dispersion.
p->vy = vmax * (1 - ad * g_random_double ()) * dt * 2;
p->iInitialLife = MIN ((1 - p->y) / p->vy, ceil (myConfig.iStormDuration/2 / dt));
p->iLife = p->iInitialLife;
fBlend = g_random_double ();
p->color[0] = fBlend * myConfig.pStormColor1[0] + (1 - fBlend) * myConfig.pStormColor2[0];
p->color[1] = fBlend * myConfig.pStormColor1[1] + (1 - fBlend) * myConfig.pStormColor2[1];
p->color[2] = fBlend * myConfig.pStormColor1[2] + (1 - fBlend) * myConfig.pStormColor2[2];
p->color[3] = (p->y < 0 ? 0. : at);
p->fOscillation = 0.;
p->fOmega = 0.;
p->fSizeFactor = 1.;
p->fResizeSpeed = 0.; // zoom constant.
}
pData->pStormSystem = pParticleSystem;
return TRUE;
}
