static void
snowThink (SnowScreen *ss,
SnowFlake *sf)
{
int boxing;
boxing = firefliesGetScreenBoxing (ss->s->display);
sf->age += 0.01;
sf->lifecycle = (sf->age / 10) / sf->lifespan * (firefliesGetSnowSpeed(ss->s->display) / 10);
int glowStage = (sf->lifecycle * GLOW_STAGES);
sf->glowAlpha = bezierCurve(glowCurve[glowStage], sf->lifecycle);
//if (sf->glowAlpha > 1.0)
// sf->glowAlpha = 1.0;
if ( sf->y <= -boxing
|| sf->y >= ss->s->height + boxing
|| sf->x <= -boxing
|| sf->x >= ss->s->width + boxing
|| sf->z <= -((float) firefliesGetScreenDepth (ss->s->display))
|| sf->z >= 1
|| sf->age > sf->lifespan)
{
initiateSnowFlake(ss,sf);
}
snowMove(ss->s->display, sf);
}
static void
snowThink (SnowScreen *ss,
SnowFlake *sf)
{
int boxing;
const BananaValue *
option_screen_boxing = bananaGetOption (bananaIndex,
"screen_boxing",
-1);
const BananaValue *
option_screen_depth = bananaGetOption (bananaIndex,
"screen_depth",
-1);
boxing = option_screen_boxing->i;
if (sf->y >= ss->s->height + boxing ||
sf->x <= -boxing ||
sf->y >= ss->s->width + boxing ||
sf->z <= -((float) option_screen_depth->i / 500.0) ||
sf->z >= 1)
{
initiateSnowFlake (ss, sf);
}
snowMove (sf);
}
static void
snowThink (SnowScreen *ss,
SnowFlake *sf)
{
int boxing;
boxing = starGetScreenBoxing (ss->s->display);
if (sf->y >= ss->s->height + boxing ||
sf->x <= -boxing ||
sf->y >= ss->s->width + boxing ||
sf->z <= -((float) starGetScreenDepth (ss->s->display) / 500.0) ||
sf->z >= 1)
{
initiateSnowFlake (ss, sf);
}
snowMove (ss->s->display, sf);
}
static Bool
snowInitScreen (CompPlugin *p,
CompScreen *s)
{
SnowScreen *ss;
int i, numFlakes = starGetNumSnowflakes (s->display);
SnowFlake *snowFlake;
SNOW_DISPLAY (s->display);
ss = calloc (1, sizeof(SnowScreen));
s->base.privates[sd->screenPrivateIndex].ptr = ss;
ss->s = s;
ss->snowTexturesLoaded = 0;
ss->snowTex = NULL;
ss->active = FALSE;
ss->displayListNeedsUpdate = FALSE;
ss->allSnowFlakes = snowFlake = malloc (numFlakes * sizeof (SnowFlake));
for (i = 0; i < numFlakes; i++)
{
initiateSnowFlake (ss, snowFlake);
setSnowflakeTexture (ss, snowFlake);
snowFlake++;
}
updateSnowTextures (s);
setupDisplayList (ss);
WRAP (ss, s, paintOutput, snowPaintOutput);
WRAP (ss, s, drawWindow, snowDrawWindow);
ss->timeoutHandle = compAddTimeout (starGetSnowUpdateDelay (s->display),
starGetSnowUpdateDelay (s->display) * 1.2, stepSnowPositions, s);
return TRUE;
}
static void
snowDisplayOptionChanged (CompDisplay *d,
CompOption *opt,
StarDisplayOptions num)
{
SNOW_DISPLAY (d);
switch (num)
{
case StarDisplayOptionSnowSize:
{
CompScreen *s;
for (s = d->screens; s; s = s->next)
{
SNOW_SCREEN (s);
ss->displayListNeedsUpdate = TRUE;
updateSnowTextures (s);
}
}
break;
case StarDisplayOptionSnowUpdateDelay:
{
CompScreen *s;
for (s = d->screens; s; s = s->next)
{
SNOW_SCREEN (s);
if (ss->timeoutHandle)
compRemoveTimeout (ss->timeoutHandle);
ss->timeoutHandle =
compAddTimeout (starGetSnowUpdateDelay (d),
starGetSnowUpdateDelay (d) *1.2, stepSnowPositions, s);
}
}
break;
case StarDisplayOptionNumSnowflakes:
{
CompScreen *s;
int i, numFlakes;
SnowFlake *snowFlake;
numFlakes = starGetNumSnowflakes (d);
for (s = d->screens; s; s = s->next)
{
SNOW_SCREEN (s);
ss->allSnowFlakes = realloc (ss->allSnowFlakes,
numFlakes * sizeof (SnowFlake));
snowFlake = ss->allSnowFlakes;
for (i = 0; i < numFlakes; i++)
{
initiateSnowFlake (ss, snowFlake);
setSnowflakeTexture (ss, snowFlake);
snowFlake++;
}
}
}
break;
case StarDisplayOptionSnowTextures:
{
CompScreen *s;
CompOption *texOpt;
texOpt = starGetSnowTexturesOption (d);
sd->snowTexFiles = texOpt->value.list.value;
sd->snowTexNFiles = texOpt->value.list.nValue;
for (s = d->screens; s; s = s->next)
updateSnowTextures (s);
}
break;
default:
break;
}
}
static void
snowChangeNotify (const char *optionName,
BananaType optionType,
const BananaValue *optionValue,
int screenNum)
{
SNOW_DISPLAY (&display);
if (strcasecmp (optionName, "snow_size") == 0)
{
CompScreen *s;
for (s = display.screens; s; s = s->next)
{
SNOW_SCREEN (s);
ss->displayListNeedsUpdate = TRUE;
updateSnowTextures (s);
}
}
else if (strcasecmp (optionName, "snow_update_delay") == 0)
{
CompScreen *s;
for (s = display.screens; s; s = s->next)
{
SNOW_SCREEN (s);
if (ss->timeoutHandle)
compRemoveTimeout (ss->timeoutHandle);
ss->timeoutHandle =
compAddTimeout (optionValue->i,
(float) optionValue->i * 1.2,
stepSnowPositions, s);
}
}
else if (strcasecmp (optionName, "num_snowflakes") == 0)
{
CompScreen *s;
int i, numFlakes;
SnowFlake *snowFlake;
numFlakes = optionValue->i;
for (s = display.screens; s; s = s->next)
{
SNOW_SCREEN (s);
ss->allSnowFlakes = realloc (ss->allSnowFlakes,
numFlakes * sizeof (SnowFlake));
snowFlake = ss->allSnowFlakes;
for (i = 0; i < numFlakes; i++)
{
initiateSnowFlake (ss, snowFlake);
setSnowflakeTexture (ss, snowFlake);
snowFlake++;
}
}
}
else if (strcasecmp (optionName, "snow_textures") == 0)
{
CompScreen *s;
for (s = display.screens; s; s = s->next)
updateSnowTextures (s);
}
else if (strcasecmp (optionName, "toggle_key") == 0)
updateKey (optionValue->s, &sd->toggle_key);
}
static Bool
snowInitScreen (CompPlugin *p,
CompScreen *s)
{
SnowScreen *ss;
const BananaValue *
option_num_snowflakes = bananaGetOption (bananaIndex,
"num_snowflakes",
-1);
const BananaValue *
option_snow_update_delay = bananaGetOption (bananaIndex,
"snow_update_delay",
-1);
int i, numFlakes = option_num_snowflakes->i;
SnowFlake *snowFlake;
SNOW_DISPLAY (&display);
ss = calloc (1, sizeof(SnowScreen));
if (!ss)
return FALSE;
s->privates[sd->screenPrivateIndex].ptr = ss;
ss->s = s;
ss->snowTexturesLoaded = 0;
ss->snowTex = NULL;
ss->active = FALSE;
ss->displayListNeedsUpdate = FALSE;
ss->allSnowFlakes = snowFlake = malloc (numFlakes * sizeof (SnowFlake));
if (!snowFlake)
{
free (ss);
return FALSE;
}
for (i = 0; i < numFlakes; i++)
{
initiateSnowFlake (ss, snowFlake);
setSnowflakeTexture (ss, snowFlake);
snowFlake++;
}
updateSnowTextures (s);
setupDisplayList (ss);
WRAP (ss, s, paintOutput, snowPaintOutput);
WRAP (ss, s, drawWindow, snowDrawWindow);
ss->timeoutHandle = compAddTimeout (option_snow_update_delay->i,
(float)
option_snow_update_delay->i *
1.2,
stepSnowPositions, s);
return TRUE;
}
