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patch [#28616] Multiple particle systems support

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from Andrea Rugliancich (andrearu01)
This commit is contained in:
Campbell Barton 2011-09-25 07:42:43 +00:00
parent 58a74bc87f
commit 3379099a6e
1 changed files with 31 additions and 26 deletions
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57
source/blender/makesrna/intern/rna_particle.c
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@ -145,33 +145,38 @@ static void rna_ParticleHairKey_location_object_info(PointerRNA *ptr, ParticleSy
*psmd_pt= NULL;
*pa_pt= NULL;
/* weak, what about multiple particle systems? */
for (md = ob->modifiers.first; md; md=md->next) {
if (md->type == eModifierType_ParticleSystem)
psmd= (ParticleSystemModifierData*) md;
/* given the pointer HairKey *hkey, we iterate over all particles in all
* particle systems in the object "ob" in order to find
*- the ParticleSystemData to which the HairKey (and hence the particle)
* belongs (will be stored in psmd_pt)
*- the ParticleData to which the HairKey belongs (will be stored in pa_pt)
*
* not a very efficient way of getting hair key location data,
* but it's the best we've got at the present
*
* IDEAS: include additional information in pointerRNA beforehand,
* for example a pointer to the ParticleStstemModifierData to which the
* hairkey belongs.
*/
for (md= ob->modifiers.first; md; md=md->next) {
if (md->type == eModifierType_ParticleSystem) {
psmd= (ParticleSystemModifierData *) md;
if (psmd && psmd->dm && psmd->psys) {
psys = psmd->psys;
for(i= 0, pa= psys->particles; i < psys->totpart; i++, pa++) {
/* hairkeys are stored sequentially in memory, so we can
* find if it's the same particle by comparing pointers,
* without having to iterate over them all */
if ((hkey >= pa->hair) && (hkey < pa->hair + pa->totkey)) {
*psmd_pt = psmd;
*pa_pt = pa;
return;
}
}
}
}
}
if (!psmd || !psmd->dm || !psmd->psys) {
return;
}
psys= psmd->psys;
/* not a very efficient way of getting hair key location data,
* but it's the best we've got at the present */
/* find the particle that corresponds with this HairKey */
for(i=0, pa=psys->particles; i<psys->totpart; i++, pa++) {
/* hairkeys are stored sequentially in memory, so we can find if
* it's the same particle by comparing pointers, without having
* to iterate over them all */
if ((hkey >= pa->hair) && (hkey < pa->hair + pa->totkey))
break;
}
*psmd_pt= psmd;
*pa_pt= pa;
}
static void rna_ParticleHairKey_location_object_get(PointerRNA *ptr, float *values)